CN1991623B - Image forming apparatus and developing cartridge - Google Patents
Image forming apparatus and developing cartridge Download PDFInfo
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- CN1991623B CN1991623B CN2006101725386A CN200610172538A CN1991623B CN 1991623 B CN1991623 B CN 1991623B CN 2006101725386 A CN2006101725386 A CN 2006101725386A CN 200610172538 A CN200610172538 A CN 200610172538A CN 1991623 B CN1991623 B CN 1991623B
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- delevoping cartridge
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Abstract
A system provides a compact and functional image forming device that can securely supply a driving force to a developing cartridge. The developing cartridge can be mounted to the image forming device in an insertable/removable manner. A passive coupling gear (144) and cylinder (184) externally project in the width direction of the collar member (50) allowing secure supply of a driving force through connection of the passive coupling gear (144) to the coupling input shaft (145). In addition, the amount of movement of the coupling input shaft (145) to connect with the passive coupling gear (144) can be minimized, thereby allowing for a miniaturization of the color laser printer (1). Furthermore, in addition to the original function, the function of being guided by the left guiding groove (189) for the passive coupling gear (144) and the function of being guided by the right groove (73) for the cylinder (184) can be added.
Description
Quoting alternately of related application
The application requires the right of priority of Japanese patent application 2005-376119 number of Japanese patent application 2006-122215 number that proposes on April 26th, 2006 and proposition on Dec 27th, 2005, and the full content of above-mentioned patented claim is incorporated by reference herein.
Technical field
Various aspects of the present invention relate to the image processing system such as laser printer, and the Delevoping cartridge that can be used to this image processing system.
Background technology
Known coloured image forms in the device can insert or the removable some Delevoping cartridges of mode line spread.These Delevoping cartridges provide toner to the surface of the image-carrier of optical conductor box (photoconductor cartridges).Delevoping cartridge can be can insert or removable mode line spread.The combination of image-carrier and Delevoping cartridge and miscellaneous part can be called as image processing system (including but not limited to the device such as laser printer) usually.
In an example of image processing system, Delevoping cartridge comprises the toner generator.This Delevoping cartridge comprises the toner storage device and carries the developer carrier of toner.Toner is carried at the surface of developer carrier.When developer carrier contact image carrier surface, toner is provided on the electrostatic latent image of image carrier surface existence.This process occurs in the rotation of developer carrier.Therefore, the electrostatic latent image of image carrier surface is developed the image into being formed by contrasting power.Then, contrasting power is transferred to paper, thereby forms the image that is formed by contrasting power (or toner) on paper.
In addition, the optical conductor box can be inserted into coloured image formation device and/or form device from this coloured image and remove.When the optical conductor box was installed in the coloured image formation device, direct geared on the image-carrier and coloured image formed the driven wheel engagement that is provided with on the device body.
In at least one example, Delevoping cartridge is attached to the optical conductor box by guiding groove.Guide hump can be arranged on two side surfaces of guiding groove.Guiding groove can be formed on the framework of optical conductor box.When installing in the above described manner when being connected, the development bias voltage is applied to developer carrier makes it carry toner.The electrode that is provided with on the framework of development bias voltage by the optical conductor box provides.In addition, the developer carrier gear that is provided with on the developer carrier and the gearing mesh of image-carrier.The developer carrier gear can with the rotational synchronization of the optical conductor gear that directly meshes with driven wheel.Driven wheel can be arranged on the body of coloured image formation device.Developer carrier rotates by such structure.
Summary of the invention
General introduction of the present invention is provided to introduce with the form of simplifying the selection of notion, and these notions will further specify in the detailed description hereinafter.This general introduction is not key feature or the essential characteristic that is intended to indicate claimed subject content.
It is a kind of through improved Delevoping cartridge that various aspects of the present invention provide, and this Delevoping cartridge presents through improved guide structure.Disclosed these and other aspects are according to hereinafter the consideration to the detailed description of illustrative embodiment will be apparent.
An object of the present invention is to provide compact and functional image processing system, this image processing system can provide driving force to Delevoping cartridge reliably.Another purpose provides can insert or removable mode is mounted to the Delevoping cartridge of image processing system.
To achieve these goals, what technical scheme 1 was described the invention is characterized in, the present invention is by shell 2; Image-carrier 24; Constitute with Delevoping cartridge 22, Delevoping cartridge 22 is configured to install or remove with respect to image-carrier 24, and Delevoping cartridge 22 comprises: the developer carrier 34 that is configured to transmit to image-carrier 24 developer; From Delevoping cartridge 22 extend and transmission of drive force to rotate the driving input part 144,186 of developer carrier 34; Be configured to and drive the driven in rotation device 145 that input part 144 is connected; With the guide 70 that is configured to guiding driving input part 144,186 when Delevoping cartridge 22 is installed and removed with respect to image-carrier 24.
Based on such structure, the driving input part of Delevoping cartridge is connected to the driven in rotation device.Therefore, driving force can be passed to the developer carrier of Delevoping cartridge reliably.
In addition, thus driving input part makes Delevoping cartridge be directed to arrangement (seated) position by the guide guiding.
Therefore, except original function, promptly driving force is by outside the function of transmitting from the driven in rotation device, and the function that is directed by guide can be added into the driving input part.Therefore, do not need to be provided with again the new structural member that guides by guide.
So the functional of image processing system is improved, and can realize that the size of image processing system reduces.
In addition, be technical scheme 1 described invention according to the present invention of technical scheme 2, be characterised in that guide 70 is towards image-carrier 24 guiding Delevoping cartridges 22.
Based on such structure, Delevoping cartridge can be guided reliably by guide.
In addition, be technical scheme 1 described invention according to the present invention of technical scheme 3, be characterised in that guide is towards installation position guiding Delevoping cartridge 22, and after being arranged to, Delevoping cartridge 22 moves towards image-carrier 24.
Based on such structure, Delevoping cartridge can suitably He always be aimed at image-carrier (consistently).
In addition, be technical scheme 1 described invention according to the present invention of technical scheme 4, be characterised in that driven in rotation device 145 is configured to move forward and backward on first direction, this first direction be driven in rotation device 145 axially.
Based on such structure, driven in rotation device and the connection and the disengaging that drive between the input part can be carried out corresponding to driven in rotation device moving forward and backward freely on the direction of itself.
Therefore, the availability of image processing system can improve, by to Delevoping cartridge towards image-carrier with leave guiding on the direction of image-carrier, driven in rotation device and the connection and the disengaging that drive between the input part are interlocked.
As a result, the functional of image processing system is improved.
In addition, be technical scheme 1 described invention according to the present invention of technical scheme 5, be characterised in that, comprise the image carrier box 21 that keeps image-carrier 24; Wherein image carrier box 21 is configured to be installed in shell 2 neutralization and removes from shell 2.
Based on such structure, the image carrier box 21 with image-carrier 24 allows image-carrier 24 easily to change.
In addition, image carrier box 21 can be inserted into image forming device body along the axial direction perpendicular to the driven in rotation device, or remove from image forming device body, thereby when image carrier box is installed in the body of image processing system, allow it freely to be connected to driving input part and therefrom disengaging towards the Delevoping cartridge of image-carrier guiding by mobile driven in rotation device before and after on rotor shaft direction.Therefore, the availability of image processing system can improve, by to Delevoping cartridge towards image-carrier with leave guiding on the direction of image-carrier, driven in rotation device and the connection and the disengaging that drive between the input part are interlocked.
As a result, the functional of image processing system is improved.
In addition, be technical scheme 5 described inventions according to the present invention of technical scheme 6, be characterised in that: guide 70 is associated with image carrier box 21; Delevoping cartridge 22 is configured to be installed in image carrier box 21 neutralizations at second direction upper edge guide 70 and removes from image carrier box 21.
Based on such structure, Delevoping cartridge can be inserted into image carrier box and/or removes from removing from image carrier box along being arranged on guide on the image carrier box, thereby allows Delevoping cartridge easily to change.
As a result, the functional of image processing system is improved.
In addition, be technical scheme 6 described inventions according to the present invention of technical scheme 7, be characterised in that electrode 182 is configured to contact source element 155, this source element provides bias voltage to electrode 182 when Delevoping cartridge 22 is installed in the image carrier box 21.
Based on such structure, the electrode of Delevoping cartridge contact source element, thus allow to Delevoping cartridge feed power supply reliably.
In addition, be technical scheme 7 described inventions according to the present invention of technical scheme 8, be characterised in that source element 155 is installed on the image carrier box 21.
Based on such structure, source element is arranged on the image carrier box, and can move to the source element of more close Delevoping cartridge, allow in the process that Delevoping cartridge is installed to image carrier box reliable contact, thereby allow to Delevoping cartridge feed power supply reliably to source element.In addition, can reduce electrode size on the Delevoping cartridge.
The present invention according to technical scheme 9 is technical scheme 7 described inventions, is characterised in that source element 155 is installed on the inwall of shell 2.
Based on such structure, source element can be positioned on the madial wall exactly.Thereby can realize Delevoping cartridge is powered reliably.
In addition, the present invention according to technical scheme 10 is technical scheme 7 described inventions, be characterised in that: first guiding wall 70 has guiding and drives input part 144,186 first guiding groove 189, first guiding groove 189 has first width with respect to the third direction cross measure, and this third direction is the axial of image-carrier 24; And second second guiding groove 73, the second guiding grooves 73 of guiding wall 71 with leading electrode 182 have second width with respect to the third direction cross measure, wherein first width and second width are unequal.
Based on such structure, first groove width is different with second groove width.
Because it is different with electrode to drive input part, and first groove width is different with second groove width, therefore can't inserts second guiding groove and electrode is inserted first guiding groove driving input part.This is because a groove is narrower than another groove.Therefore, can prevent from the Delevoping cartridge mistake is mounted to image carrier box.
Therefore, this structure makes Delevoping cartridge correctly be mounted to image boxes.
In addition, be technical scheme 10 described inventions according to the present invention of technical scheme 11, be characterised in that first width is greater than second width.
By such structure, firmer thereby the driving input part can do more, prevent from simultaneously the Delevoping cartridge mistake is mounted to image carrier box.
In addition, be technical scheme 10 described inventions according to the present invention of technical scheme 12, feature further is, drive input part 144,186 and electrode 182 on third direction from Delevoping cartridge 22 to outer lug.
Based on such structure, the width of first guiding groove is greater than the breadth extreme that drives input part.This is provided with realization by the smooth guide of first guiding groove to the driving input part.
Full-size on the direction vertical with the direction that drives the input part projection is greater than the width of second guiding groove.Therefore, when driving input part in the face of second guiding groove and electrode surface during to first guiding groove, Delevoping cartridge can not be installed in the image carrier box, is not guided by second guiding groove because drive input part.Therefore, can prevent from the Delevoping cartridge mistake is mounted to image boxes.
Therefore, this structure allows Delevoping cartridge correctly is mounted to image boxes.
In addition, be technical scheme 12 described inventions according to the present invention of technical scheme 13, be characterised in that first width is greater than driving input part 144,186 perpendicular to the breadth extreme on the direction of third direction.
Based on such structure, Delevoping cartridge can easily be mounted to image carrier box with first guiding groove.
In addition, be the described invention of claim 13 according to the present invention of technical scheme 14, be characterised in that, second width greater than electrode perpendicular to the breadth extreme on the direction of third direction.
Based on such structure, link to each other with the driven in rotation device and driving force is passed to driving input part on it perpendicular to the full-size of the full-size on the direction of protrusion direction greater than electrode, allow the rigidity stronger than electrode.
Therefore, the driving force from the driven in rotation device can stably be passed to the driving input part.
In addition, be technical scheme 13 described inventions according to the present invention of technical scheme 15, be characterised in that, drive the breadth extreme of the breadth extreme of input part 144,186 greater than electrode 182.
Based on such structure, drive input part and electrode and on the direction of the direction that is inserted into image boxes perpendicular to Delevoping cartridge or removes, face mutually from image boxes.
Therefore, be mounted at Delevoping cartridge under the condition of image boxes, driving force is passed to the driving input part from the driven in rotation device, thereby prevents from electrode to produce the big influence from moment of torsion, and to drive input part also be like this even this moment of torsion concentrates on.
As a result, the mobile of electrode position can prevent, thereby allow source element to stablize feed power supply to electrode.
In addition, when inserting image boxes at Delevoping cartridge or when image carrier box removes, when driving input part and electrode and being guided by guide, Delevoping cartridge can stably be inserted into image boxes or remove and do not misplace from image carrier box.
Therefore, this structure allow with Delevoping cartridge with can insert/removable mode is mounted to image carrier box more reliably.
In addition, be technical scheme 7 described inventions according to the present invention of technical scheme 16, be characterised in that, drive input part 144 and electrode 182 and be arranged on the Delevoping cartridge 22, drive input part 144,186 on perpendicular to the direction of third direction to electrode 182.
Based on such structure, the size of image processing system can be reduced.
In addition, be technical scheme 7 described inventions according to the present invention of technical scheme 17, be characterised in that, during rotation to the driven spinner 144 of developer carrier 34 transmission of drive force, and the outer cover 186 that surrounds the circumference of driven spinner 144.
Based on such structure, outer cover covers the excircle of driven spinner, thereby avoids directly contacting with guide when driven spinner is guided by guide, and correspondingly can reduce contact and cause the danger that damages.
Therefore, this structure allow with Delevoping cartridge with can insert/removable mode is mounted to image boxes more reliably.
Based on such structure, because be arranged at the aligned portions in the downstream of Delevoping cartridge installation direction, Delevoping cartridge can be mounted to image carrier box with pinpoint accuracy.In addition, aligned portions is in the downstream, thus allow developer carrier and image-carrier reliable with stably contact.
Therefore, when image carrier box was installed on the body of image processing system, the driven in rotation device can be connected to the driving input part of Delevoping cartridge reliably.This structure thereby permission are with the developer carrier of driving force reliable delivery to Delevoping cartridge.In addition, when relating to technical scheme 7, electrode can contact with Delevoping cartridge reliably, allows to Delevoping cartridge feed power supply reliably.
In addition, be technical scheme 7 described inventions according to the present invention of technical scheme 18, be characterised in that the aligned portions 50 that developer carrier 34 is aimed at respect to image carrier box 21.
Based on such structure, the driving input part that is arranged on the Delevoping cartridge is inserting perpendicular to Delevoping cartridge on the direction of image boxes/remove from image carrier box more to outer lug than aligned portions.
The driving input part of Delevoping cartridge can more close driven in rotation device source element, allow the driven in rotation device to be connected to the driving input part reliably.Therefore, when Delevoping cartridge is installed to wherein image carrier box when being mounted to the body of image processing system, driving force can be passed to the developer carrier of Delevoping cartridge reliably.
In addition, the driven in rotation device moves before and after can be on rotor shaft direction, and therefore when the close driven in rotation device of the driving input part of Delevoping cartridge, the driven in rotation device can diminish towards the displacement of rotor shaft direction.
So just allow to reduce image processing system and promptly be inserted into/remove size from the direction of the direction of the body of image processing system perpendicular to image carrier box in the rotor shaft direction of driven in rotation device.So also just allow to reduce the size of image processing system.Especially, when image carrier box be inserted into/remove direction from image processing system when being set to the front and back of image processing system or top end direction, the size of left and right directions can be reduced.
In addition, be technical scheme 18 described inventions according to the present invention of technical scheme 19, be characterised in that, drive input part 144,186 than aligned portions on perpendicular to the direction of third direction more to outer lug.
Based on such structure, the possibility that the Delevoping cartridge mistake is installed to image carrier box is reduced.
In addition, according to claim 20, claim 18 is described to be the invention is characterized in, electrode 182 than aligned portions 50 on perpendicular to the direction of third direction more to outer lug.
Based on such structure, the electrode that source element can more close Delevoping cartridge.Therefore, when image carrier box was mounted in the body of image processing system, electrode contacted source element reliably, allowed to Delevoping cartridge feed power supply reliably.
In addition, be technical scheme 18 described inventions according to the present invention of technical scheme 21, be characterised in that aligned portions 50 is attached to two edges of the axle of developer carrier on the direction perpendicular to third direction.
Based on such structure, aligned portions is at two edges that are inserted into/remove the axle that covers developer carrier on the direction of the direction of image carrier box perpendicular to Delevoping cartridge.
Therefore, be mounted in the process of image carrier box at Delevoping cartridge, when aligned portions make Delevoping cartridge with respect to image carrier box on time, the developer carrier physical efficiency that its two ends portion of being aligned covers is aligned with pinpoint accuracy.In addition, can reduce the damage of the axle of developer carrier.Further, can reduce the axial length of developer carrier.
Therefore, this is provided with permission Delevoping cartridge is mounted to image carrier box more reliably.
In addition, be technical scheme 18 described inventions according to the present invention of technical scheme 22, be characterised in that aligned portions 50 comprises chamfer surface 185, chamfer surface guiding Delevoping cartridge 22 is with respect to the installation of image carrier box 21 and remove.
Based on such structure, can reduce when Delevoping cartridge being inserted into/removing from image carrier box on the aligned portions because its edge and image carrier box are being inserted into/are removing the friction that causes that contacts on the direction of the direction of image carrier box perpendicular to Delevoping cartridge on the inclined-plane that forms on the aligned portions.
Therefore, Delevoping cartridge can be inserted into/removing on the direction of image carrier box and smoothly moving.
Correspondingly, this structure allow with Delevoping cartridge more reliably with can insert/removable mode is mounted to image carrier box.
In addition, be technical scheme 18 described inventions according to the present invention of technical scheme 23, be characterised in that wherein aligned portions 50 is to drive input part 144 and/or electrode 182.
Based on such structure, except each original function that drives input part and/or electrode promptly from the function that drives the driven in rotation device transmission of drive force on the input part with from the function of source element feed power supply, also can add the alignment function of Delevoping cartridge with respect to image carrier box.
As a result, Delevoping cartridge and the functional of image processing system with Delevoping cartridge are improved.
The present invention that technical scheme 24 is described is a kind of Delevoping cartridge 22, this Delevoping cartridge 22 is configured to install and remove with respect to the shell 2 of image processing system 1 at first direction, shell 2 has image-carrier 24, and Delevoping cartridge 22 has the developer carrier 34 that is configured to carry developer; Drive input part 144,186 projection on, drive input part 144 and be configured in the installation of Delevoping cartridge and remove in the process, and receive driving force to rotate developer carrier 34 by guide 70 guiding perpendicular to the direction of first direction.
Based on such structure, the driving input part of Delevoping cartridge is connected to the driven in rotation device, thereby allows the external motivating force reliable delivery to Delevoping cartridge.
In addition, drive input part and guide, thereby Delevoping cartridge can insert image carrier box/remove from image carrier box by guide.
Thereby, can be used as the original function that drives input part by the function of guide guiding and promptly transmit the additional function of the function of external motivating force and be added.Therefore, do not need again the new member that is provided with by the guide guiding.
Therefore, the functional of image processing system is improved, and can realize that the size of image processing system reduces.
In addition, be technical scheme 24 described inventions according to the present invention of technical scheme 25, be characterised in that electrode 182 is configured to when Delevoping cartridge 22 is mounted, contact source element 155, source element 155 is configured to provide bias voltage to electrode 182.
Based on such structure, the source element on body one side of the electrode contact image of Delevoping cartridge formation device allows to the reliable feed power supply of Delevoping cartridge.
In addition, be technical scheme 25 described inventions according to the present invention of technical scheme 26, be characterised in that, drive input part 144,186 and electrode 182 and be arranged on the Delevoping cartridge 22, drive input part 144,186 on perpendicular to the direction of first direction to electrode 182.
Based on such structure, the driving input part of Delevoping cartridge and electrode are faced on the direction of the direction that is inserted into image carrier box/remove from image carrier unit perpendicular to Delevoping cartridge mutually.
Therefore, be mounted at Delevoping cartridge under the condition of image carrier unit, driving force is passed to the driving input part from the driven in rotation device, thereby prevents to produce on electrode the big influence from moment of torsion, and input part also is like this even the moment of torsion that is produced concentrates on driving.
As a result, can prevent that electrode position from moving, thereby allow source element to the stable power supply that provides of electrode.
In addition, insert at Delevoping cartridge when driving input part and electrode that image carrier unit/when image carrier unit removed, when being guided by guide, Delevoping cartridge can stably be inserted into/remove from image carrier unit and not misplace.
Therefore, this structure allow with Delevoping cartridge with can insert/removable mode is mounted to image carrier unit more reliably.
In addition, the present invention according to technical scheme 27 is the described invention of claim 25, be characterised in that, drive input part 144,186 perpendicular to the breadth extreme on the second direction of the direction that drives input part 144,186 projectioies greater than electrode 182 perpendicular to the breadth extreme on the third direction of the direction of electrode 182 projectioies.
Based on such structure, be connected to driven in rotation device and driving force and be passed to driving input part on it perpendicular to the full-size of the full-size on the direction of protrusion direction greater than electrode, allow the rigidity bigger than electrode.
Therefore, the driving force from the driven in rotation device can stably be passed to the driving input part.
In addition, be technical scheme 24 described inventions according to the present invention of technical scheme 28, be characterised in that, drive input part 144,186 further comprise the driven spinner 144,186 that links to each other with developer carrier 34, and the outer cover 186 that surrounds driven spinner 144 circumference.
Based on such structure, outer cover covers the excircle of driven spinner, thereby avoids directly contacting with guide when driven spinner is guided by guide, and can correspondingly reduce because contact causes the danger that damages.
Therefore, this structure allow with Delevoping cartridge with can insert/removable mode is mounted to image carrier unit more reliably.
In addition, are technical scheme 25 described inventions according to technical scheme 29, be characterised in that aligned portions 50 makes developer carrier 34 aim at respect to image carrier box 21.
Based on such structure, because be arranged at the aligned portions in the downstream of Delevoping cartridge installation direction, Delevoping cartridge can be mounted to image carrier unit with pinpoint accuracy.
Therefore, when Delevoping cartridge being installed on the body at image processing system being installed to image boxes on it, driven spinner can be connected to the driving input part of Delevoping cartridge reliably, thereby allows the driving force reliable delivery to Delevoping cartridge.In addition, electrode can contact with Delevoping cartridge reliably, allows to the reliable feed power supply of Delevoping cartridge.
In addition, be technical scheme 29 described inventions according to the present invention of technical scheme 30, be characterised in that, drive input part 144,186 than aligned portions 50 on perpendicular to the direction of first direction more to outer lug.
Based on such structure, be arranged on the Delevoping cartridge the driving input part than aligned portions on the direction of the direction that is inserted into image carrier box/remove perpendicular to developing cell from image carrier unit more to outer lug.
The driving input part of Delevoping cartridge can more close driven in rotation device source element, allow the driven in rotation device to be connected to the driving input part reliably, therefore, when Delevoping cartridge being installed to image carrier unit on it when being mounted to the body of image processing system, driving force can be passed to the developer carrier of Delevoping cartridge reliably.
In addition, the driven in rotation device moves before and after can be on rotor shaft direction, and therefore when the more close driven in rotation device of the driving input part of Delevoping cartridge, the driven in rotation device can diminish towards the displacement of rotor shaft direction.
So just allow to reduce image processing system and promptly be inserted into the size of direction of the direction of the body of image processing system/remove from the body of image processing system, thereby realize reducing the size of image processing system perpendicular to image carrier unit in the rotor shaft direction of driven in rotation device.Especially, when the direction setting that image carrier unit is inserted into image processing system/remove from image processing system is the fore-and-aft direction of image processing system or top end direction, can reduce the size of left and right directions.
In addition, be technical scheme 29 described inventions according to the present invention of technical scheme 31, be characterised in that, electrode 182 than aligned portions 50 on perpendicular to the direction of first direction more to outer lug.
Based on such structure, source element can be near the electrode of Delevoping cartridge.Therefore, when Delevoping cartridge being installed to image carrier unit on it when being mounted in the body of image processing system, electrode contacts source element reliably, allows to Delevoping cartridge feed power supply reliably.
In addition, the technical scheme of the present invention 29 described inventions according to technical scheme 32 are characterised in that, aligned portions 50 is attached to two edges of the axle of developer carrier 34 on the direction perpendicular to first direction.
Based on such structure, aligned portions covers two edges of the axle of developer carrier in the direction of the direction that is inserted into image carrier unit/remove from image carrier unit perpendicular to Delevoping cartridge.
Therefore, be mounted in the process of image carrier box at Delevoping cartridge, when aligned portions make Delevoping cartridge with respect to image carrier unit on time, the developer carrier physical efficiency that its two ends portion of being aligned covers is aimed at pinpoint accuracy.
Therefore, this structure allows Delevoping cartridge is mounted to image carrier unit more reliably.
In addition, be technical scheme 29 described inventions according to the present invention of technical scheme 33, be characterised in that aligned portions 50 comprises chamfer surface 185, this chamfer surface 185 is configured to Delevoping cartridge 22 guiding with respect to the installation of image carrier box 21 with remove.
Based on such structure, Delevoping cartridge is being inserted into image carrier unit/when image carrier unit removes, the inclined-plane that forms on the aligned portions can reduce between on the aligned portions because its edge and the image carrier unit friction that causes in the contact that is inserted into image carrier unit/on the direction of the direction of image carrier unit perpendicular to Delevoping cartridge.
Therefore, Delevoping cartridge can smoothly move being inserted on the direction of image carrier unit/remove from image carrier unit.
Correspondingly, this structure allow with Delevoping cartridge reliably with can insert/removable mode is mounted to image carrier unit.
In addition, be technical scheme 25 described inventions according to the present invention of technical scheme 34, be characterised in that aligned portions 50 is to drive input part and/or electrode 182.
Based on such structure, Delevoping cartridge can correctly be guided to image-carrier and be aimed at it.
According to technical scheme 1 described the present invention, driving force can be passed to the developer carrier of Delevoping cartridge reliably.In addition, the functional of image processing system is improved, and can realize that the size of image processing system reduces.
According to technical scheme 2 described the present invention, the functional of image processing system is improved.
According to technical scheme 3 described the present invention, the functional of image processing system is improved.
According to technical scheme 4 described the present invention, the functional of image processing system is improved.
According to technical scheme 5 described the present invention, the functional of image processing system is improved.
According to technical scheme 6 described the present invention, the functional of image processing system is improved.
According to technical scheme 7 described the present invention, power supply can be fed to Delevoping cartridge reliably.
According to technical scheme 8 described the present invention, power supply can be fed to Delevoping cartridge reliably.This external enwergy reduces the electrode size on the Delevoping cartridge.
According to technical scheme 9 described the present invention, power supply can be fed to Delevoping cartridge reliably.
According to technical scheme 10 described the present invention, can realize Delevoping cartridge correctly is mounted to image boxes.
According to technical scheme 11 described the present invention, can realize Delevoping cartridge correctly is mounted to image boxes.
According to technical scheme 12 described the present invention, can realize Delevoping cartridge correctly is mounted to image boxes.
According to technical scheme 13 described the present invention, can realize Delevoping cartridge correctly is mounted to image boxes.
According to technical scheme 14 described the present invention, can stably be passed to the driving input part from the driving force of driven in rotation device.
According to technical scheme 15 described the present invention, can realize Delevoping cartridge is mounted to image boxes more reliably.
According to technical scheme 16 described the present invention, can realize Delevoping cartridge is mounted to image boxes more reliably.
According to technical scheme 17 described the present invention, driving force can be passed to the developer carrier of Delevoping cartridge reliably.In addition, this structure allows to the reliable feed power supply of Delevoping cartridge.
According to technical scheme 18 described the present invention, driving force can be passed to the developer carrier of Delevoping cartridge reliably.In addition, this structure allows the size of image processing system to reduce.
According to technical scheme 19 described the present invention, can realize Delevoping cartridge reliably is mounted to image carrier box.
According to technical scheme 20 described the present invention, power supply can be fed to Delevoping cartridge reliably.
According to technical scheme 21 described the present invention, can realize Delevoping cartridge is mounted to image boxes more accurately.In addition, can reduce the damage that developer carrier is an axle.Further, can reduce the axial length of developer carrier.
According to technical scheme 22 described the present invention, can realize Delevoping cartridge reliably is mounted to image boxes.
According to technical scheme 23 described the present invention, Delevoping cartridge and the functional of image processing system with Delevoping cartridge are improved.
According to technical scheme 24 described the present invention, driving force can be passed to Delevoping cartridge reliably.In addition, the functional of image processing system is improved, and can realize that the size of image processing system reduces.
According to technical scheme 25 described the present invention, power supply can be fed to Delevoping cartridge reliably.
According to technical scheme 26 described the present invention, source element can be stably to the electrode feed power supply.In addition, this structure allow with Delevoping cartridge more reliably with can insert/removable mode is mounted to image carrier unit.
According to technical scheme 27 described the present invention, can realize Delevoping cartridge reliably is mounted to image boxes.
According to technical scheme 28 described the present invention, driving force can stably be passed to the driving input part.
According to technical scheme 29 described the present invention, can realize Delevoping cartridge is mounted to image carrier unit more reliably.
According to technical scheme 30 described the present invention, driving force can be passed to the developer carrier of Delevoping cartridge reliably.In addition, this structure allows to reduce the size of image processing system.
According to technical scheme 31 described the present invention, power supply can be fed to Delevoping cartridge reliably.
According to technical scheme 32 described the present invention, can realize Delevoping cartridge is mounted to image carrier unit more accurately.
According to technical scheme 33 described the present invention, can realize Delevoping cartridge is mounted to image carrier unit more reliably.
According to technical scheme 34 described the present invention, can realize Delevoping cartridge is mounted to image carrier unit more reliably.
Description of drawings
Fig. 1 shows the transverse cross-sectional view of conduct according to the part of the color laser printer of the illustrative embodiment of the image processing system of one or more aspects of the present invention.
Fig. 2 is the part of bulging subunit wherein is installed in demonstration according to the Delevoping cartridge of the color laser printer shown in Figure 1 of a various aspects of the present invention transverse cross-sectional view.
Fig. 3 is the transverse cross-sectional view of demonstration according to the part of the Delevoping cartridge shown in Figure 2 of various aspects of the present invention.
Fig. 4 is the decomposition diagram according to the drum unit 26 of various aspects of the present invention.
Fig. 5 shows the various aspects according to the present invention front-axle beam that is arranged in parallel, the right side lateral perspective view of the situation of four the bulging subunits and the back rest.
Fig. 6 shows the various aspects according to the present invention front-axle beam that is arranged in parallel, four the bulging subunits and the back rest, and the left side lateral perspective view of assembling the situation of pair of side plates.
Fig. 7 is the right side lateral perspective view according to the drum unit of various aspects of the present invention.
Fig. 8 is the left side lateral perspective view according to the drum unit of various aspects of the present invention.
Fig. 9 shows that various aspects according to the present invention are mounted to one of Delevoping cartridge the left side lateral perspective view of drum unit.
Figure 10 shows that various aspects according to the present invention are mounted to one of Delevoping cartridge the left side lateral perspective view from higher visual angle (than Fig. 9) observation of drum unit.
Figure 11 is the rear view according to the Delevoping cartridge of various aspects of the present invention.
Figure 12 is the left side lateral perspective view of demonstration according to the described Delevoping cartridge on the posterior lateral surface of the Delevoping cartridge of various aspects of the present invention.
Figure 13 is the right side lateral perspective view of demonstration according to the described Delevoping cartridge of the front side lateral surfaces of the Delevoping cartridge of various aspects of the present invention.
Figure 14 is according to the various aspects of the present invention planimetric map of the drum unit that is removed of one of Delevoping cartridge wherein.
Figure 15 is the right side view according to the drum unit shown in Figure 14 of various aspects of the present invention, and wherein for the need side plate that illustrates is removed, and the right guiding groove of two front side drum subunits is exposed.
Figure 16 is that its latus inframedium is removed according to the left side view of the drum unit shown in Figure 14 of various aspects of the present invention.
Figure 17 is the sectional view along line A-A shown in Figure 14 according to various aspects of the present invention.
Figure 18 A-18D is the synoptic diagram of demonstration according to the top view of the laser printer inside shown in Figure 1 of various aspects of the present invention.
Figure 19 A-19B is according to the connection input shaft of various aspects of the present invention and the left side perspective view of arm, so that connection input shaft shown in Figure 180 and the contact situation between the arm to be described.
Figure 20 A-20B is according to the bulging subunit of the modification 1 of various aspects of the present invention and the left side view of Delevoping cartridge.
Figure 21 A-21B is according to the bulging subunit of the modification 1 of various aspects of the present invention and the right side view of Delevoping cartridge.
Figure 22 shows the various aspects according to the present invention front-axle beam that is arranged in parallel, the right side view of the situation of four the bulging subunits and the back rest.
Figure 23 shows the various aspects according to the present invention front-axle beam that is arranged in parallel, four the bulging subunits and the back rest, and assemble the right side view of the situation of pair of side plates.
Figure 24 is the left side perspective view of demonstration according to the described Delevoping cartridge of the rear side of the Delevoping cartridge of the modification 2 of various aspects of the present invention.
Figure 25 is the left side perspective view of demonstration according to the described Delevoping cartridge of the rear side of the Delevoping cartridge of the modification 3 of various aspects of the present invention.
Figure 26 is the left side perspective view of demonstration according to the described Delevoping cartridge of the rear side of the Delevoping cartridge of the modification 4 of various aspects of the present invention.
Figure 27 is the left side perspective view of demonstration according to the described Delevoping cartridge of the rear side of the Delevoping cartridge of the modification 4 of various aspects of the present invention, and wherein the circumference of cylinder outer cover is about half of cylinder outer cover shown in Figure 26.
Figure 28 is the left side perspective view of demonstration according to the described Delevoping cartridge of the rear side of the Delevoping cartridge of the modification 4 of various aspects of the present invention, and wherein the circumference of cylinder outer cover is about half of cylinder outer cover shown in Figure 27.
Embodiment
All many-sides of preamble general introduction can be with all multi-form enforcement.Narration has hereinafter shown many combinations and the structure that can implement these various aspects by the mode of explanation.Be appreciated that described various aspects and/or embodiment are example, can adopt other various aspects and/or embodiment and carry out the modification on the 26S Proteasome Structure and Function and do not deviate from scope of the present invention.
Should be noted that the many contacts that propose in the explanation hereinafter between each key element.And noticing these contacts generally speaking, unless stated otherwise, can be direct or non-direct contact, and this instructions be not intended to limit in this aspect.
1. the general structure of color laser printer
Fig. 1 shows the transverse cross-sectional view of conduct according to the part of the embodiment of the color laser printer of the image processing system of one or more aspects of the present invention.Fig. 2 shows that the Delevoping cartridge of color laser printer shown in Figure 1 is installed in the transverse cross-sectional view of the part of bulging subunit wherein.Fig. 3 is the transverse cross-sectional view that shows the part of Delevoping cartridge shown in Figure 2.
Color laser printer 1 shown in Figure 1 is horizontal tandem color laser printer, a plurality of bulging subunit 23 that wherein be arranged in parallel in the horizontal direction and will be illustrated later.Color laser printer 1 also can comprise the paper feed part 4 of paper feeding 3, forms the image forming part 5 of image on the paper of presenting 3, and discharges paper 3 paper delivery portions 6, and image forms in main body cover 2.Main body cover 2 can be the main body of image processing system.
Color laser printer 1 or can comprise with drum subunit 23 or substitute the image transfer belt (image from drum subunit 23 provides developer to the intermediate image transfer belt, and the latter is transferred to print media with image again) that the sensitization band of drum subunit 23 uses.
In the following description, the right side of paper among Fig. 1 (drum inserts/remove the side that opening 162 forms on main body cover 2) is the front side of color laser printer 1, and the left side of paper is the rear side of color laser printer 1 among Fig. 1.In addition, be the left side at the nearside of paper sheet thickness direction among Fig. 1, be the right side in the distally of paper sheet thickness direction among Fig. 1.
In addition, unless stated otherwise, direction hereinafter is that Delevoping cartridge 22 is installed in the direction under the situation in the main body cover 2.
(1) paper feed part
Paper feed part 4 can insert/remove by sliding from the dish container 171 of the main body cover 2 that is positioned at main body cover 2 bottoms in front/rear direction.Paper feed part 4 comprises the paper feed tray 7 that keeps paper 3, separate roller 8, separating pad 9 and paper-feed roll 10.Paper feed tray 7, separate roller 8 and separating pad 9 are arranged to make it to face mutually at the top of paper feed tray 7 leading edge.Paper-feed roll 10 is arranged on separate roller 8 next doors.
The paper feeding wing passage 11 of paper 3 roughly forms U-shaped.Paper 3 is presented towards the place ahead.After paper 3 upsets, paper 3 is being discharged towards the direction of image processing system rear side.As a result, the upstream edge of paper 3 is positioned to adjacent at the separate roller 8 of bottom.And that the downstream edge of paper 3 is positioned to is adjacent with the travelling belt 53 of paper feed part 4.
Paper dust kicker cylinder 12 and pinch roll 13 can be arranged at the preceding top of separate roller 8.Paper dust kicker cylinder 12 and pinch roll 13 also can be faced mutually.A pair of alignment rolls 14 can be arranged at the top of paper dust kicker cylinder 12 and pinch roll 13.Paper dust kicker cylinder 12, pinch roll 13 and a pair of alignment rolls 14 can be arranged at the centre of paper feeding wing passage 11.
The pressboard 15 of the ply of paper of contact paper 3 can be arranged in the paper feed tray 7.Pressboard 15 can be supported in a movable manner at rear side, thereby pressboard 15 can move between loading position (contact the base plate of paper feed tray 7, be positioned at the bottom of paper feed tray 7 in this lead edge portion, position) and paper feeding position (being positioned at the top of paper feed tray 7 in the lead edge portion of this position pressboard 15).
In addition, the leading edge of paper feed tray 7 bottom is provided with bar 16.Bar 16 is upwards mentioned the leading edge of pressboard 15.Bar 16 is supported on the leading edge bottom of pressboard 15.Bar 16 vertical moving.
Along with moving of bar 16, the leading edge of pressboard 15 is mentioned by bar 16.Also have, pressboard 15 is moved upward to paper feeding position (paper takes out from this position).
When pressboard 15 was positioned at the paper feeding position, the paper 3 at pressboard 15 tops was pressurizeed by paper-feed roll 10.So paper 3 is presented between separate roller 8 and separating pad 9 by the rotation of paper-feed roll 10.
When paper feed tray 7 when main body cover 2 removes, pressboard 15 is positioned at loading position.When pressboard 15 was positioned at loading position, paper 3 can stacked being loaded on the pressboard 15.
Then, the paper 3 that is fed is clipped between separate roller 8 and the separating pad 9.When separate roller 8 rotated, paper 3 was presented by many.So the paper 3 that is fed is by between paper dust kicker cylinder 12 and the pinch roll 13.At this, the dust on the paper 3 is eliminated.Paper 3 14 is presented along paper side feed throughs 11 towards alignment rolls then.
Alignment rolls 14 temporarily stops paper 3 and moves forward.Then, alignment rolls 14 is rotated and paper 3 is fed to travelling belt 53.
(2) image forming portion
Image forming portion 5 comprises scanner 17, processing unit 18, transfer printing portion 19 and photographic fixing portion 20.
(2-1) scanner
Scanner 17 is arranged at the top of main body cover 2.Though not shown in the diagram, scanner 17 can comprise generating laser, polygonal mirror, multiple lens, and catoptron (or other known sweep units).In scanner 17, from generating laser emitted laser bundle based on corresponding to the versicolor view data of using the image processing system 1.So laser beam is by the polygonal mirror reflection of rotating.Laser is by the multiple lens or the mirror reflection that is reflected then.Laser is output then, corresponding to each image-carrier 24 that relates to the color related with each image-carrier 24.
(2-2) processing unit
Processing unit 18 can be positioned at scanner 17 belows and paper feed part 4 tops.Processing unit 18 can comprise drum unit 21 and four Delevoping cartridges 22 (each Delevoping cartridge 22 corresponds respectively to a kind of toner color of image processing system 1).
(2-2-1) drum unit
Each drum subunit 23 is arranged with spaced and parallel at fore-and-aft direction.For example, drum subunit 23 can following order be arranged in the past backward: yellow drum subunit 23Y, magenta drum subunit 23M, dark green bulging subunit 23C and black drum subunit 23K.
Each drum subunit 23 comprises (as described below) left frame 70, left side frame 71 and centre frame 72 (see figure 4)s.
Each drum subunit 23 can comprise the photosensitive drums as image-carrier 24, grid-control formula corona charging device 25 and cleaning brush 68 as shown in Figure 2.
Image-carrier 24 is arranged on Width (left and right directions).Image-carrier 24 can comprise cylindrical drum body 26.The top surface of cylindrical drum body 26 can be made by the photoconduction layer of polycarbonate of positive charge.Image-carrier 24 also can comprise the drum axle 27 along the axial setting of drum body 26.
(see figure 4) in the left plate 95 of left side frame 71 and centre frame 72 is inserted at the two ends of drum axle 27 respectively.Also have, (see figure 7) is aimed at by side plate 121 in the two ends of drum axle 27.
Rotational support member 30 (see figure 9)s are fitted to the two ends of image-carrier 24 appropriately, and therefore drum body 26 and drum axle 27 can not rotate relative to each other.Rotational support member 30 is by the peripheral support of drum axle 27.By such method, bulging body 26 supports in rotating mode by bulging 27.In image forming course, be passed to image-carrier 24 from the driving force of motor (in main body cover 2).Image-carrier 24 responds these driving forces and rotates.
Grid-control formula corona charging device 25 has oblique gap in the face of image-carrier 24 at the rear, top of image-carrier.Grid-control formula corona charging device 25 is supported by centre frame 72.Grid-control formula corona charging device 25 comprises the discharge silk 28 in the face of image-carrier 24.Gapped between discharge silk 28 and image-carrier 24.Grid 29 are arranged between discharge silk 28 and the image-carrier 24.
Silk electrode 80 (see figure 5)s are connected to discharge silk 28.Gate electrode 81 (see figure 5)s are connected to grid 29.
In image forming course, high voltage is applied to discharge silk 28 by the high voltage substrate of silk electrode 80 from main body cover 2.Discharge silk 28 carries out corona discharge at voltage by gate electrode 29 when the high voltage substrate is applied to grid 29.As a result, the surface of image-carrier 24 quilt is positive charge equably, provides controlled to the electric charge of image-carrier 24 simultaneously.
Cleaning brush 68 is at the rear portion of image-carrier 24 contact image carrier 24.Cleaning brush 68 is supported by centre frame 72.In image forming course, the cleaning bias voltage is applied to cleaning brush 68 (see figure 5)s by the cleaning electrode from the high voltage substrate.
(2-2-2) Delevoping cartridge
As shown in Figure 1, Delevoping cartridge 22 is configured to make it can be attached to/remove certainly corresponding to versicolor bulging subunit 23.Delevoping cartridge 22 can comprise four parts, can insert/be installed in removedly the yellow Delevoping cartridge 22Y on the yellow drum subunit 23Y, can insert/be installed in removedly the magenta Delevoping cartridge 22M on the magenta drum subunit 23M, the dark green Delevoping cartridge 22C on the dark green bulging subunit 23C can be inserted/be installed in removedly and black Delevoping cartridge 22K on the black drum subunit 23K can be inserted/be installed in removedly.
As shown in Figure 3, each Delevoping cartridge 22 can comprise developing hanger 31 (as the example of shell), stirrer 32, donor rollers 33 (being arranged on the developing hanger 31), developer carrier 34 (example of contrasting power carrier) and bed thickness margining tablet 35.
Developing hanger 31 can form the box-like (seeing Figure 11) that opening 36 is opened at feather edge.Developing hanger availability interval 39 is divided into toner container 37 and developing room 38.The connecting hole 40 that connects toner container 37 and developing room 38 can be arranged on the interval 39.
Be contained in respectively in the toner container 37 corresponding to versicolor toner.More specifically, yellow Delevoping cartridge 22Y can hold yellow toner, and magenta Delevoping cartridge 22M can hold the magenta toner, and dark green Delevoping cartridge 22C can hold dark green toner, and black Delevoping cartridge 22K can hold black toner.
The non-magnetic mono-component polymerized toner of positive charge can be used as corresponding to versicolor toner.The particle of polymerized toner can be roughly sphere.The key component of toner can be and to include but not limited to acrylic acid by copolymerization such as cinnamic styrene monomer, and alkyl (C1-C4) acrylate and alkyl (C1-C4) be the binder resin of acrylic monomers (using well-known polymerization such as the suspension polymerization) acquisition of acrylate partially.The toner basic granules can be by adding one or more colorants (so that the shades of colour of toner to be provided), and charge control agent and paraffin form.Adjuvant can be added to improve the flowability of toner.
Colorant (for example, yellow, magenta, dark green and black) is mixed as colorant.In addition, charge control resin (can obtain) by the ion monomer that copolymerization has such as the ion functional group of ammonium salt, monomer (can with ion monomer copolymerization) such as styrene monomer, and acrylic monomers can be mixed as charge control agent.In addition, inorganic powder can be mixed as adjuvant.This inorganic powder can comprise such as silicon dioxide, aluminium oxide, titanium dioxide, strontium titanates, cerium oxide or magnesian metal oxide powder, and carbide powder and metal salt powder.
The window 142 that is used for surveying the toner surplus that comprises in the toner container 37 is arranged on the toner container 37.Window is positioned on the sidewall on both sides.Window is crossed toner container 37 mutually in the face of (seeing Figure 17).
Stirrer 32 is arranged in the toner container 37.Stirrer 32 comprises rotation axis 41.Rotation axis 41 can be supported by the sidewall 141 on developing hanger 31 both sides, so rotation axis 41 can rotate.Stirrer 32 also can comprise the axial agitating member 42 that is arranged on stirrer rotation axis 47.Agitating member 42 can stretch out from rotation axis in the diametric(al) of developing hanger 31.In image forming course, driving force is passed to rotation axis 41 from the motor (not shown).Agitating member 42 these driving forces of response are rotated in toner container 37.
More specifically, rubber roll body 46 can have double-decker, comprises by the conductive polyurethane rubber that contains carbon particulate, rubber roll body layer that silicon rubber or EPDM rubber etc. is made and the coat that is coated in rubber roll body laminar surface.The key component of rubber roll body layer can be the resin with excellent wear resistance energy, such as urethane rubber, and urethane resin or polyimide resin.In addition, can when being inserted in the bulging subunit 23, use Delevoping cartridge 22 as feeder loop 155 (see figure 5)s of the loop of developer carrier electrode 82 with developer carrier axon 45.
In image forming course, driving force is passed to developer carrier axon 45 from the motor (not shown).Developer carrier 34 these driving forces of response are rotated.In addition, the development bias voltage applies from high voltage substrate (not shown) by developer carrier electrode 82 and feeder loop 155.
The upside of bed thickness margining tablet 35 pressure contact developer carrier 34 in developing room 38.Bed thickness margining tablet 35 comprises lamellar body 48, and lamellar body 48 comprises the metal plate springs member and the press section 49 of semi-circular cross-section is arranged.Press section 49 is arranged at the non-attachment end of lamellar body 48.Press section 49 can be made by silicon rubber or urethane rubber insulation or conduction.
The anchored end of lamellar body 48 fastens to interval 39 by clamp structure 47.Lamellar body 48 can be flexible.Because the elasticity of lamellar body 48, be arranged on the top that the press section 49 of the not stiff end of lamellar body 48 is pressed the rubber roll body 46 of developer carrier 34 equably.
(2-2-3) development operation in the processing unit
As shown in Figure 3, because the weight of toner, the toner that holds in the toner container 37 to small part is moved downward to connecting hole 40.When being stirred device 32 stirrings, toner is discharged to developing room 38 by connecting hole 40.
Then, toner is arranged to developing room 38 from connecting hole 40.Toner is provided to donor rollers 33 from developing room 38.The toner that is provided by donor rollers 33 is transferred into developer carrier 34 by the rotation of donor rollers 33.In donor rollers 33 rotating process, positive triboelectric charge is in donor rollers 33 and be applied between the developer carrier 34 of development bias voltage and produce.
Provide to the toner of developer carrier 34 and enter between the rubber roll body 46 of the press section 49 of bed thickness margining tablet 35 and developer carrier 34.Providing of toner is auxiliary by the rotation of developer carrier 34.The surface that toner is transferred to rubber roll body 46 becomes the thin layer that geostationary thickness is arranged.
As shown in Figure 2, in drum subunit 23, grid-control formula corona charging device 25 produces corona discharge.Grid-control formula corona charging device 25 fills with uniform positive charge to the surface of image-carrier 24.
When image-carrier 24 rotated, the surface of image-carrier 24 was by grid-control formula corona charging device 25 positive charge equably.Then, the high-velocity scanning of the laser beam of the surperficial origin self-scanning device 17 of image-carrier 24 exposure.The electrostatic latent image corresponding to the image that will form is given in scanning on paper 3.
When image-carrier 24 contact developer carriers 34, the surface of image-carrier 24 is provided with the shape of the electrostatic latent image that provided by laser scanning the toner on developer carrier 34 surfaces.Electromotive force is low is exposed in part because laser beam causes in the even image-carrier 24 lip-deep exposures of positive charge.Use this processing, the electrostatic latent image of image-carrier 24 is developed to seeing image.Each color is all carried out the discharged-area development process of this toner image on the surface of image-carrier 24.
Toner is transferred to behind the paper on the image-carrier 24 residual residual toner and is collected by developer carrier 34.The residual paper dust from paper 3 is collected by cleaning brush 68 on the image-carrier 24 then.
(2-3) transfer printing portion
Referring to Fig. 1, transfer printing portion 19 is arranged at paper feed part 4 tops and processing unit 18 belows in the main body cover 2 along fore-and-aft direction.This transfer printing portion 19 comprises driven roller 51, driven rolls 52, travelling belt 53, transfer roll 54 and cleaning section 55.
Driven roller 51 and driven rolls 52 fore-and-aft direction mutually in the face of and have at interval.Driven roller 51 is arranged at the rear side of black drum subunit 23K.Driven rolls 52 is arranged at the front side of yellow drum subunit 23Y.
Travelling belt 53 can be an endless belt.Travelling belt 53 is by making such as the resin film of conductive polycarbonate and polyimide.Conductive particle (such as graphite) can on the resin film or among.Travelling belt 53 transmits between driven roller 51 and driven rolls 52.
In image forming course, driving force is by from the motor transmission.Driving force provides to driven roller 51.Driven roller 51 these driving forces of response are rotated.Then, travelling belt 53 is transferred into transfer position between driven roller 51 and driven rolls 52.Transfer position is the position of the image-carrier 24 of each drum subunit 23 of travelling belt 53 contacts.In 52 driven whiles of driven rolls, travelling belt 53 rotates with the direction opposite with image-carrier 24.
Transfer roll 54 is along the arrangement of passages of travelling belt, so a side opposite with image-carrier 24 of transfer roll contact travelling belt 53.Each transfer roll 54 all has the metal roller shaft that has the rubber roll body made from conductive rubber.In addition, each transfer roll 54 is arranged in transfer position and contacts travelling belt 53, so each transfer roll 54 is driven and rotate with the direction identical with the sense of rotation of travelling belt 53.In image forming course, transfer bias is applied from the high voltage substrate.
Cleaning section 55 is arranged at travelling belt 53 belows.Cleaning section 55 comprises main clearer 56, auxilliary clearer 57, scraping blade 58 and toner storer 59.
The bottom of main clearer 56 contact travelling belts 53.The bottom of travelling belt 53 is in the opposite side in top (contacting travelling belt 53 with transfer roll 54 at this image-carrier 24) with travelling belt 53.In image forming course, main cleaning bias voltage is applied to main clearer 56 from the high voltage substrate.
Auxilliary clearer 57 contacts main clearer 56 in the bottom side of main clearer 56.In this position, auxilliary clearer 57 rotates with the direction identical with main clearer 56.Also have, in image forming course, auxilliary cleaning bias voltage is applied to auxilliary clearer 57 from the high voltage substrate.
The bottom of the auxilliary clearer 57 of scraping blade 58 contacts.
Toner storer 59 is arranged on main clearer 56 and auxilliary clearer 57 belows, so toner storer 59 savings are from assisting the toner that clearer 57 drops.
The paper presented by paper feed part 43 is transported to rear side from the front side by travelling belt, so paper 3 transfer position by each drum subunit 23 places successively.Versicolor toner image on the image-carrier 24 of each drum subunit 23 is transferred to paper 3 successively.Correspondingly, coloured image forms on paper 3.
In other words, for example, after the lip-deep yellow toner image of the image-carrier 24 of yellow drum subunit 23Y was transferred to paper 3, magenta toner image (on the surface of the image-carrier 24 of magenta drum subunit 23M) and dark green toner image (on the surface of the image-carrier 24 of dark green bulging subunit 23C) were by transfer printing successively.Then, the lip-deep black toner image at the image-carrier 24 of black drum subunit 23K is transferred to paper 3.The coloured image that on paper 3, forms consequently.
In the transfer operation process, be transferred to cleaning section 55 attached to the toner on travelling belt 53 surfaces.At first, toner is transferred to main clearer 56 by main cleaning bias voltage from the surface of travelling belt 53.Then, toner is transferred to auxilliary clearer 57 by auxilliary cleaning bias voltage.The toner that is transferred to auxilliary clearer 57 is then struck off by scraping blade 58.So toner drops and puts aside toner storer 59 from auxilliary clearer 57.
(2-4) photographic fixing portion
Photographic fixing portion 20 is arranged on the rear side of black drum subunit 23K, so the transfer position that is in contact with one another at fore-and-aft direction in the face of image-carrier 24 and travelling belt 53 of photographic fixing portion 20.Photographic fixing portion 20 comprises warm-up mill 61 and backer roll 62.
Warm-up mill 61 comprises metal tube (forming on the metal tube surface at this releasing layer) and is arranged on the axial Halogen lamp LED of warm-up mill 61.The surface of warm-up mill 61 is heated to fixing temperature by Halogen lamp LED.
Backer roll 62 is arranged on warm-up mill 61 belows and faces warm-up mill 61.Backer roll 62 is pushed the bottom of warm-up mill 61.The paper 3 that has coloured image is transferred into photographic fixing portion 20.In the time of between paper 3 is by warm-up mill 61 and backer roll 62, the toner on the paper 3 is carried out hot photographic fixing.
(3) paper delivery portion
In paper delivery portion, the upstream side edge of the paper delivery side feed throughs 63 of paper 3 is adjacent with the bottom of photographic fixing portion 20.The edge, downstream of paper delivery side feed throughs 63 is adjacent with the top of paper discharge tray 64.Paper delivery side feed throughs 63 is seen from the side and is roughly formed U-shaped.At this, paper 3 is presented backwards, and upset is forwards discharged then.
In the centre of paper delivery side feed throughs 63, feed roller 65 and pinch roll 66 are faced mutually.In addition, a pair of exit roller 67 is arranged at the downstream edge of paper delivery side feed throughs 63.
In addition, paper discharge tray 64 is arranged in the paper delivery portion 6.It is sagging gradually backward in the past that paper discharge tray 64 forms the roof that makes main body cover 2.Therefore, the paper 3 of discharge can stacked loading.
Paper 3 from photographic fixing portion 20 is transported along paper delivery side feed throughs 63 by feed roller 65 and pinch roll 66.So paper 3 is discharged in the paper discharge tray 64 by exit roller 67.
2. drum unit
Fig. 4 is the decomposition diagram of drum unit 26.Fig. 5 shows the front-axle beam be arranged in parallel, the right side lateral perspective view of four the bulging subunits and the back rest.Fig. 6 shows the front-axle beam be arranged in parallel, the left side lateral perspective view of four bulging subunits and the back rest and pair of side plates.
Fig. 7 is the right side lateral perspective view of drum unit 21 (Delevoping cartridge has been installed).Fig. 8 is the left side lateral perspective view of drum unit 21 (Delevoping cartridge has been installed).Fig. 9 shows that one of Delevoping cartridge is mounted to the left side lateral perspective view of drum unit 21.Figure 10 is the left side lateral perspective view of watching from the position higher than Fig. 9, shows that one of Delevoping cartridge is mounted to drum unit 21.
Figure 11 is the rear view of Delevoping cartridge.Figure 12 is the left side lateral perspective view of described Delevoping cartridge that shows the posterior lateral surface of Delevoping cartridge.Figure 13 is the right side lateral perspective view of described Delevoping cartridge that shows the front side lateral surfaces of Delevoping cartridge.Figure 14 is the planimetric map of the drum unit 21 that is removed of one of Delevoping cartridge.Figure 15 is the right side view of drum unit 21 shown in Figure 14, wherein for explanation side plate is removed, and the right guiding groove of two front side drum subunits 23 is exposed.Figure 16 is the left side view of drum unit 21 shown in Figure 14, and its latus inframedium is removed.Figure 17 is the sectional view along line A-A shown in Figure 14.
Figure 22 shows the front-axle beam be arranged in parallel, the right side lateral perspective view of four the bulging subunits 23 and the back rest.Figure 23 shows front-axle beam, and four the bulging subunits 23 and the back rest are arranged in parallel, and assemble the right side lateral perspective view of the situation of pair of side plates.
Then, describe drum unit in detail with reference to figure 4 to Figure 17 and Figure 22 and Figure 23.
As shown in Figure 6, drum unit 21 can comprise four bulging subunits 23 (corresponding to shades of colour), and the front-axle beam 96 and the back rest 111 that are arranged in four bulging subunit 23 both sides along fore-and-aft direction.The drum subunit is arranged in parallel along fore-and-aft direction.Fig. 6 also is presented at the pair of side plates 121 that Width is clipped in the middle 96, four bulging subunits 23 of front-axle beam and the back rest 111 from both sides.
Drum unit 21 (comprising four bulging subunits 23, front-axle beam 96, the back rest 111 and pair of side plates 121) can slide by the bulging spatial accommodation from main body cover 2 161 and be inserted into/remove (see figure 1).
(1) rouses subunit
As shown in Figure 4, rouse subunit 23 and can comprise opposed facing left frame 70 and left side frame 71.Centre frame is between left frame 70 and left side frame 71.
(1-1) bogie side frame
Right guiding groove 73 is formed at the inwall of left side frame 71.Right guiding groove 73 provides the function of current feed department guiding groove.
Right guiding groove 73 is formed at the inwall of left side frame 71.Right guiding groove 73 extends to the front side feather edge of close left side frame 71 from the rear side coboundary of left side frame 71.Right guiding groove 73 roughly extends along top end direction.Right guiding groove 73 has concave, when square U type xsect is arranged when the inwall broad ways of left side frame 71 is observed.The top edge opening of right guiding groove 73.Bigger width is also arranged at the top of right guiding groove.Sight line moves down, and right guiding groove 73 has fixedly groove width A (seeing the double-ended arrow among Fig. 4).Right guiding groove 73 feather edge previous dynasty to the bending of wedged bottom rear.The foot 154 of right guiding groove 73 is corresponding to the position of developer carrier axon 45, in this position, and when Delevoping cartridge 22 is installed in the bulging subunit 23, developer carrier 34 contact image carriers 24.At the groove width B (seeing dotted arrow among Fig. 4) in deep 154 less than above-mentioned groove width A.The cylindrical part 184 (seeing Figure 11) of ring element 50 (aligned portions that is used for Delevoping cartridge) and feed member 182 (current feed department) slides at right guiding groove 73.
In addition, as shown in Figure 5, back shaft 156 is formed on the end leading edge of the right flank of left side frame 71.This back shaft 156 forms columniform shape.Back shaft 156 on Width (right side) from the right flank of left side frame 71 to outer lug.
In addition, as shown in Figure 4, the bulging support member 76 that supports image-carrier 24 is formed on the feather edge of left side frame 71.The drum support member 76 be cylinder form, on Width from the outside recessed song of the inner wall surface of left side frame 71.Drum support member 76 comprises the socket 77 of the axle tubular stinger 90 of admitting following centre frame 72.
At the center of socket 77, shaft insertion hole 78 penetrates left side frame 71 at thickness direction.
In addition, two bolt-inserting holes 79 are formed on the back edge of left side frame 71.This two bolt-inserting holes 79 penetrate at thickness direction.These two bolt-inserting holes 79 allow bolt 92 that left side frame 71 is connected to centre frame 72.One of bolt-inserting hole 79 is formed on the antemarginal feather edge of left side frame 71.Another bolt-inserting hole 79 is formed on the centre of direction at the bottom of the antemarginal top of left side frame 71.
Raised line 84 extends along fore-and-aft direction.Raised line 84 is formed on the top of protrusion 75 on left frame and the left side frame.These raised lines 84 on Width from the outer wall of left frame 70 and left side frame 71 to outer lug.Raised line 84 forms long narrow shape along fore-and-aft direction.
In addition, left frame 70 is aforesaid shapes of general triangular when observing from the side.roughly push up end side upwardly extending before vertical wall 60 be formed on the left frame 70.The feather edge of vertical wall 60 before preceding recess 69 is formed on.When observing from the front side, vertical wall 60 hung down to the shape of the roughly arch of front side before preceding recess 69 formed.So vertical wall 60 is continuous for left frame 70 in the past.In addition, the back edge of the top edge of preceding vertical wall 60 and the end face of left frame 70 links to each other with the inclined surface that extends to oblique sinciput.
Bolt part 85 is arranged at the feather edge of left frame 70.Bolt part 85 allows bolt 136 that left frame 70 is connected on the side plate 121.Bolt part 85 forms tubular, on Width from the lateral wall of left frame 70 to outer lug.
In addition, alignment bumps 200 is protruding forward from the leading flank of left frame 70.Alignment bumps 200 is formed on the leading edge below of raised line 84 on the front side wall of left frame 70.
When vertical cross-section is observed, bar 206 forms roughly anti-L shaped shape.On the bar shifting axle 207 of bar 206 in insertion rod back shaft 214 two edges are arranged.One end of bar 206 protrudes into the right side from sidewall opening 213.The other end of bar 206 protrudes into the left side from sidewall opening 213.
As shown in Figure 5, silk electrode 80, gate electrode 81, developer carrier electrode 82 and cleaning electrode 83 are supported in the left side frame 71.These elements penetrate left side frame 71 at thickness direction, and on Width from the lateral wall of left side frame 71 to outer lug.
Silk electrode 80 is arranged on shaft insertion hole 78 tops on the right side wall 71 roughly in the centre of fore-and-aft direction and top end direction.
As shown in figure 22, feeder loop 155 can comprise coiling portion 157.This coiling portion 157 comprises the conductor wire material such as metal wire.The coiling portion 157 of feeder loop 155 is around a circle or a multi-turn more.Coiling portion 157 also can comprise an arm 158 and another arm 159, and these two arms deviate from projection from coiling portion 157 mutually in tangential direction.
Feeder loop 155 is arranged to the back shaft 156 that makes coiling portion 157 be inserted to left side frame 71.Also have, arm 158 is provided with to tiltedly going up the place ahead along the leading edge of left side frame 71.The not attachment edge of arm 158 is connected to developer carrier electrode 82.Another arm 159 extends in the direction of tiltedly going forward in the place ahead of an arm 158.Another arm 159 is locked by hook 160 (when be arranged at the centre that end direction is roughly pushed up in back shaft 156 tops when vertical cross-section is observed).Another arm 159 is crooked backward from the position that is locked by hook 160.When observing from the side, another arm 159 forms the roughly shape of arch from the part that locked by hook 160 to attachment end not.When observing from the side and feeder loop 155 when being assembled to left side frame 71, above-mentioned lug boss 176 forms the roughly shape of arch, and from notch 201 projectioies of right guiding groove 73 to right guiding groove 73.
As shown in Figure 5, cleaning electrode 83 is arranged on the centre of direction at the bottom of the antemarginal top of left side frame, gate electrode 81 tops and on the posterosuperior diagonal line of shaft insertion hole 78.
Periphery cooperate wall 94 by the silk electrode 80 on the outer wall that surrounds left side frame 71 with semicircle on Width to outer lug.
(1-2) centre frame
As shown in Figure 4, centre frame 72 can be independent of left frame 70 and left side frame 71 forms by resin material.Centre frame 72 comprises central plate 86 (extending) on Width, right plate 87 and left plate 95 (being arranged at integral way on two edges of central plate 86 on the Width).The combination of left side frame 71 and left plate 95 and left frame 70 provides the function of a pair of guiding wall.
When from top view, central plate 86 has the shape of narrow boards shape.Central plate 86 comprises charger holder 88 (broad ways keeps grid-control formula corona charging device 25), and this charger holder 88 is arranged at the centre of direction at the bottom of the top of central plate 86.
Discharge silk 28 broad ways are positioned on the charger holder 88.Grid 29 are maintained at discharge silk 28 below (see figure 2)s.In addition, keep the silk clearer 89 of discharge silk 28 slidably being maintained on the charger holder 88 on the Width.
Brush retainer 93 remains on charger holder 88 belows on the central plate 88 with cleaning brush 68.
Cleaning brush 68 broad ways are extended (see figure 2) in brush retainer 93.
In addition, alignment roller 218 is on two edges of the top edge that is arranged at central plate 86 on the Width.Alignment roller 218 is supported by roller back shaft 219.Roller back shaft 219 is along the Width setting at two edges on the Width of the top edge of central plate, so roller back shaft 219 can freely rotate (see figure 10).
Right plate 87 and left plate 95 pass through to extend forward from central plate 86 bendings at two edges of the Width of central plate 86.Right plate 87 and left plate 95 form the shape of general triangular, and narrow side is at the top when observing from the side.Axle tubular stinger 90 (drum axle 27 inserts wherein) is arranged at leading edge.
Bolt part 91 is arranged at the top edge and the feather edge of right plate 87.Bolt part 91 allows bolt 92 to be screwed into so that left side frame 72 is assembled to centre frame 72.Bolt part 91 forms tubular, on Width from the lateral wall of right plate 87 to outer lug.
The recessed pars convoluta 152 of rear side is formed on the approximate centre of rear side vertical wall 138.For continuous with rear side vertical wall 138, when observing from the side, recessed pars convoluta 152 forms the roughly shape of arch, so rear side vertical wall 138 is recessed to the rear.
The deep 153 of flute profile at the wedged bottom rear upwards continuously from the base emargination song of the recessed pars convoluta 152 of rear side.The deep 153 of flute profile is formed on the rear side vertical wall 138.The groove width in deep 153 is identical with above-mentioned groove width B.In addition, deep 153 is corresponding to the position of developer carrier axon 45 (in this position, when Delevoping cartridge 22 is installed in the bulging subunit 23, developer carrier 34 contact image carriers 24).
In first example, recessed pars convoluta 152 and 69 combination can be used to create the seated position that Delevoping cartridge 22 is directed to.In other examples, has only one or all can not be used for creating Delevoping cartridge 22 and can be located in identical position on it in the recessed pars convoluta 152 and 69.
In first aspect, left frame 70 and left side frame 71 can be parts that comprises the unit of image-carrier 24.In one aspect of the method, left frame 70 and left side frame 71 can be separated with image-carrier 24.Herein, Delevoping cartridge 22 can at first be positioned in left frame 70 and the left side frame 71.Then, the combination of left frame 70 and left side frame 71 and Delevoping cartridge 22 can be moved into the position of developer carrier 22 contact image carriers 24.For example, left frame 70 and left side frame 71 can be the parts of drum subunit 23, are located in Delevoping cartridge 22 in drum subunit 23 and make developer carrier 34 contact image carriers 24.Perhaps, the drum that drum subunit 23 can not be associated with the drum subunit, and drum can be positioned at printer body, separates with the bulging subunit that has left frame 70 and left side frame 71.Herein, Delevoping cartridge 22 can be with respect to bogie side frame 70 and 71 location.After being positioned, drum subunit and Delevoping cartridge 22 can be positioned again, make Delevoping cartridge 22 contact image carriers 24.
Recessed bent aligned portions 202 can be arranged on direction at the bottom of the top of inclined wall 139 apart from the top edge of inclined wall 139 1/3rd position roughly.
Though not shown in the diagram, the bulging support member 76 that supports image-carrier 24 is formed on the left plate 95.At the center of drum support member 76, shaft insertion hole 78 penetrates left plate 95 on thickness direction.
Allow bolt 136 (seeing Figure 23) to be screwed into axle tubular stinger 90 tops that are arranged at left plate 95 with the bolt part 85 that each side plate 121 is assembled to bulging subunit 23.This bolt part 85 forms tubular, on Width from the lateral wall of left plate 95 to outer lug.In addition, the raised line 84 that extends along fore-and-aft direction is formed on the top of left plate 95.
(1-3) rouse the assembling of subunit
As shown in Figure 4, left side frame 71 is arranged on the right side of centre frame 72 on Width.Therefore an axle tubular stinger 90 is fitted in the socket 77 then, and axle tubular stinger 90 is positioned at the top of shaft insertion hole 78 at bulging support member 76 places of left side frame 71 on Width.Meanwhile, the top of the bolt part 91 of centre frame 72 bolt-inserting hole 79 being arranged to make bolt part 91 on Width, be positioned at left side frame 71.Then bolt 92 is inserted each bolt-inserting hole 79.Then, bolt 92 is by being screwed into each bolt-inserting hole 79 by attached.By this way, left side frame 71 is assembled to the right side of centre frame 72.
In addition, as shown in Figure 5, when left side frame 71 was assembled in the right side of centre frame 72 on Width, silk electrode 80 and gate electrode 81 (being located on the left side frame 71 on right side) were connected to the discharge silk 28 and the grid 29 of centre frame 72 respectively.Cleaning electrode 83 is connected to cleaning brush 68.
As shown in Figure 4, when left side frame 71 was assembled in the right side of centre frame 72 on Width, left frame 70 was not assembled to centre frame 72 and left side frame 71.Replace, left frame 70 is assembled to side plate 121 (following explanation).When centre frame 72 (left side frame 71 assemblings so far), is roused subunit 23 and finishes when being assembled together with side plate 121 (left frame 70 assemblings so far).This is assemblied in hereinafter explanation.
As shown in Figure 6, when drum subunit 23 was finished, the rear side vertical wall 138 of left plate 95 and the front side vertical wall 60 of left frame 70 were faced on the fore-and-aft direction of centre frame mutually.At this moment, between rear side vertical wall 138 and front side vertical wall 60, constitute certain for distance C (seeing the solid arrow among Fig. 6).Also have, the gap between rear side vertical wall 138 and the front side vertical wall 60 forms as the left guiding groove 189 that drives the input part guiding groove.Right guiding groove 73, left guiding groove 189, left side frame 71 (right guiding groove 73 is in this formation), left guiding groove 70 (left guiding groove 189 forms at this) and centre frame 72 provide the function of guide portion.
In addition, be set to groove width A (Fig. 4) in the face of distance C (hereinafter referred to as the groove width C of left guiding groove 189) greater than right guiding groove 73.Then, by the recessed pars convoluta in the front side of recessed pars convoluta 152 of the rear side of left plate 95 and left frame 70 69 is when observing from the side roughly in the face of both being navigated to make together that the part of arch is brought together mutually, thereby form inner Join insertion section 74 rounded when observing from the side.
As shown in Figure 9, image-carrier 24 is maintained in the bulging subunit 23.In other words, rotational support member 30 is inserted into wherein so does not rouse in relative rotation main body 26 and is arranged between right plate 87 and the left plate 95, therefore rouses main body 26, and right plate 87 is parallel with grid-control formula corona charging device 25 with left plate 95, and leaves the gap.Then, as shown in Figure 4, drum axle 27 is inserted in each shaft insertion hole 78 of each tubular stinger 90 of centre frame 72 and left side frame 71.Then, each tubular stinger 90 is fastened, and therefore axle tubular stinger 90 does not relatively rotate.Drum axle 27 supports rotatable support 30 (it is with not rotatable relatively mode support drum body 26).Also have, image-carrier 24 is kept by drum subunit 23.
(2) front-axle beam
As shown in Figure 5, front-axle beam 96 is arranged on before four bulging subunits 23 that are arranged in parallel along fore-and-aft direction.Front-axle beam 96 is installed between the pair of side plates 121 as shown in Figure 6.
Front-axle beam 96 comprise a pair of on Width opposed facing front sidewall 97, and be installed in this to front antetheca 98 between the front sidewall 97 and front rear wall 99.Front-axle beam 96 can be made by resin material with the mode of integral body.
Each front sidewall 97 comprises the roughly front side wall substrate 100 of parallelogram plate shape when observing from the side, and from the downward front sidewall leg 101 that extends of the feather edge of front sidewall substrate 100.The preceding bolt part 103 (bolt 136 is screwed into so far and explanation hereinafter) that is used for assembled side panel 121 is arranged at the outer wall of front sidewall substrate 100.
Before the preceding bolt part 103 of each front sidewall 97, form dead eye 203, front-axle beam 96 can be penetrated at Width.Aiming axis 204 is inserted in the dead eye 203, thus two edge on Width from each front sidewall 97 to outer lug.
The back edge surface that extends to front sidewall leg 101 from front sidewall substrate 100 forms the preceding lateral incline 102 from sinciput to the back slanted floor on front sidewall 97.(see figure 6) on the top edge of the left hand edge of lateral incline 102 before recessed bent aligned portions 215 is arranged at.
When from forward observation, front antetheca 98 has the roughly shape of narrow rectangular slab.Front antetheca 98 extends on Width.Front antetheca 98 is arranged between a pair of front sidewall 97 along top end direction.
But nearside grip part 104 is arranged on the centre of front antetheca 98 Widths.But nearside grip part 104 comprise a pair of grip side plate 105 (on the Width mutually in the face of arrange and between leave the gap) and can grip central plate 106 (be installed in and can grip between the side plate 105).
But the substrate of each gripped side plate 105 of nearside grip part 104 (not being connected to an end that can grip central plate) is moved between " loaded " position in the stand up position (shown in dotted line) and operating position (shown in solid line).When being supported rotationally by aiming axis 204 with rotary way, each bases that can grip side plate 105 is in the position along the inclination of general horizontal direction.
But the center of coupling front-axle beam 96 on Width, center on its Width is arranged to make in nearside grip part 104.
As shown in figure 10, when observing from behind, front rear wall 99 has the shape of the narrow rectangular slab that extends on Width.Front rear wall 99 is arranged on the back of front antetheca 98.Front rear wall 99 is installed between each front sidewall 97, thus front rear wall 99 along the preceding lateral incline 102 of each front sidewall 97 from sinciput to the back slanted floor.
Above-mentioned alignment roller 218 and alignment bumps 219 are arranged on two edges of front rear wall 99 roughly the center in top end direction.Alignment bumps 219 is arranged to make alignment bumps 219 to embed basically in the front rear wall 99.Also have, each alignment roller 218 is arranged to make when observing from the side the part of circumference of each alignment roller 218 from front rear wall 99 projectioies.
(3) back rest
The back rest 111 is arranged in the rear side of four bulging subunits 23.The back rest is also between pair of side plates 121.
As shown in Figure 5, the back rest 111 can comprise and is arranged in opposed facing a pair of rear wall 112 on Width.Also have, the back rest 111 can comprise and is arranged in this to the back assembly wall 113 between the rear wall 112.The back rest 111 can be made by resin material, and forms whole with a pair of rear wall 112 and back assembly wall 113.
When observing from the side, rear wall 112 can have the shape of narrow side at the roughly set square of bottom.Bolt part 114 after rear wall 112 also can have two, the bolt 136 that is used for assembled side panel 121 is arranged at its top edge and approximate centre.Form rear wall leg 107 in back bolt part 114 (being arranged at the approximate centre of rear wall 112) below.Rear wall notch 108 (recessed song forward) is formed between the back bolt part 114 and rear wall leg 107 that roughly is formed on the center.In addition, the leading edge of rear wall 112 forms from pushing up anterior back lateral incline 115 to the back bottom angled.
When from forward observation, back assembly wall 113 has the shape of the narrow rectangular slab of broad ways extension.Back assembly wall 113 is arranged between a pair of rear wall 112 along top end direction.
The center after but grip part, distally 116 is arranged on the Width of assembly wall 113.As shown in figure 10, but grip part, distally 116 can comprise and can grip recessed pars convoluta 117 that when observing from the rear, the top edge of back assembly wall 113 is sagging to the bottom with recessed curved shape.But grip part, distally 116 also can comprise back handle 118, and when observing from the rear, back handle 118 is the U type shape of general square shape, is connected to the top edge of back assembly wall 113.Correspondingly, but 116 of grip parts, distally can grip on the recessed pars convoluta 117 being positioned on the Width.
But the center on the center coupling back rest 111 Widths on its Width is arranged to make in grip part, distally 116.
(4) side plate
As shown in Figure 6, pair of side plates 121 is arranged to make side plate 121 96, four the bulging subunits 23 of front-axle beam and the back rest 111 to be clipped in the middle both sides from the width direction.
Each side plate 121 is made by the material that its linear expansion coefficient is lower than the resin material of making drum subunit 23.For example, side plate 121 can be made by metal or fiber-reinforced resin, and preferably is made of metal.
As shown in figure 23, when observing from the side, each side plate 121 has the shape of the upwardly extending roughly narrow rectangular slab in front and back.Each side plate 121 forms with respect to 96, four the bulging subunits 23 of front-axle beam and the back rest 111 and makes leading edge face front-axle beam 96, and back edge is in the face of the back rest 111.In the assembling process of drum unit 21,96, four the bulging subunits 23 of front-axle beam and the back rest 111 can be arranged in parallel along fore-and-aft direction.In addition, top edge is roused the left frame 70 and the left side frame 71 of the centre frame 72 of subunit 23 in the face of the raised line 84 of left plate 95.Feather edge rouses the left frame 70 and the left side frame 71 of the centre frame 72 of subunit 23 in the face of the feather edge of left plate 95.
The top edge of each side plate 121 is outwardly-bent on Width, so the xsect of top edge is the shape of L type.Formed flange 122 is outwardly-bent on the Width and stretch out at Width with on fore-and-aft direction.Back edge at each side plate is provided with two rollers 177 in rotating mode.By spacer 178 is clipped in the middle, these two rollers 177 are arranged in and keep certain distance on the fore-and-aft direction.Preliminary roller 177 is arranged at flange 122 belows, with respect to flange 122 certain interval is arranged on the end direction of top.Back roller 177 is arranged to respect to the back edge of flange 122 certain interval is arranged.
In addition, notch 179 is formed on the antemarginal feather edge of each side plate 121.When observing from the side, notch 179 forms the shape of U types, so notch 179 extends to the back edge of each side plate 121 and sagging forward.
Be assembled under the situation of bulging subunit 23 at each side plate 121, accept four light of the protrusion 75 of each drum subunit 23 and propagate the top edge that hole 123 is formed on each side plate 121.
Each light is propagated the top edge that hole 123 is formed on each side plate, leaves the gap along fore-and-aft direction.Light is propagated hole 123 and is formed circular hole, be installed under the situation of each drum in subunit 23 at each Delevoping cartridge 22, light is propagated hole 123 and on Width each of each drum subunit 23 is protruded 75 position at each window 142 (seeing Figure 12) of Delevoping cartridge and penetrate on thickness direction.
The drum axle 27 of each drum subunit 23 an edge insertion axis hole 124 wherein in the axial direction is formed on the feather edge of each side plate 121.
A pair of obturator hernia (not shown) is formed on top, back and preceding top, oblique each axis hole 124 to each side plate 121.Wire spring 127 is locked on this obturator hernia.More specifically, when observing from the side, wire spring 127 is made by downward sagging V-type spring wire.Also have, the two edges of top side are outwardly-bent and be locked to obturator hernia on Width.The front portion of wire spring 127 appears from axis hole 124, and therefore, when observing from the side, to preceding top rake, so 3 o ' clock positions of axis hole 124 are connected with 6 o ' clock positions from the end, back in the front portion of wire spring 127.
In addition, be assembled at each side plate under the situation of front-axle beam 96, by the preceding bolt part 103 in the face of front side wall substrate 100, the front side bolt-inserting hole 128 that is used for inserting bolt 136 is formed on the leading edge of each side plate 121.In addition, axle appears hole 216 and is formed on preceding top, oblique front side bolt-inserting hole 128 to each side plate 121.
In addition, two rear side bolt-inserting holes 129 that are used for inserting bolt 136 are formed on the back edge of each side plate 121, therefore under the situation that each side plate 121 and the back rest 111 are assembled together bolt-inserting hole 129 in the face of the back bolt part 114 of rear wall 112.In these rear side bolt-inserting holes 129, one group of rear side bolt-inserting hole 129 roughly is formed on the center of spacer 178 on fore-and-aft direction.
In addition, on left plate 121, be formed on above the Width to the passive connection gear 144 of each Delevoping cartridge 22 to outer join patchhole 130, therefore each side plate 121 is assembled to bulging subunit 23 and Delevoping cartridge 22 is installed on the bulging subunit 23 in this hole.
Four to outer join patchhole 130 along fore-and-aft direction and leave the center on the direction at the bottom of the top that is formed on side plate 121 with gap.This forms the circular hole that penetrates on thickness direction to outer join patchhole 130.These patchholes 130 are formed on the position that connects patchhole 74 (forming) in the subtend above the Width on the left surface of drum subunit 27, inwardly connect at this that patchhole 74 latus inframediums 121 are assembled to bulging subunit 23 and Delevoping cartridge 22 is installed on the bulging subunit 23.
Admit four bar transfer holes 208 of the other end (protruding from sidewall opening 213) of the bar 206 of each drum subunit 23 to be formed on the left plate 121 left, be assembled at left plate 121 under the situation of bulging subunit 23, the back in hole 123 is propagated in this hole at each light.
Four bar transfer holes 208 are formed on the top edge of left plate 121, along fore-and-aft direction and leave the gap.When observing from the side, these bar transfer holes 208 form convex shape.The detection gear 205 of bar transfer hole 208 Delevoping cartridge 22 when being installed on each drum subunit 23 when Delevoping cartridge 22 and the sidewall opening 213 opposed facing positions of drum subunit 23 are faced on thickness direction mutually.
The middle bolt-inserting hole 132 of inserting bolt 136 is formed on each side plate 121, when each side plate 121 is assembled to bulging subunit 23 in the face of the bolt part 85 of drum subunit 23.
Bolt-inserting hole 132 is arranged on each front and back position to outer join patchhole 130 in the middle of each.Each hole all is formed in the side plate 121.
As shown in Figure 7, be assembled under the situation of bulging subunit 23, forming the central opening 133 that outwards appears an electrode 80 and gate electrode 81 (being arranged on each left side frame 71 with respect to right plate 121 on the Width) on the right plate 121 at each side plate 121.
Four central openings 133 form and leave spacing along fore-and-aft direction.These central openings 133 form big opening (periphery that allows to comprise an electrode 80 cooperates wall 94 (see figure 5)s to be engaged in interior and allows gate electrode 81 to insert).
On right plate 121, open front 134 is formed on the front of each central opening 133, outwards appears developer carrier electrode 82 with respect to right plate 121 when being assembled to bulging subunit 23 when each side plate 121 on Width.Four open fronts 134 form when each side plate 121 is assembled to bulging subunit 23 on Width corresponding to each central opening 133 in the face of developer carrier electrode 82.
On right plate 121, after-opening 135 is formed on the back of each central opening 133, outwards appears cleaning electrode 83 with respect to right plate 121 when being assembled to bulging subunit 23 when each side plate 121 on Width.Four after-openings 135 form when each side plate 121 is assembled to bulging subunit 23 on Width corresponding to each central opening 133 in the face of cleaning electrode 83.
(5) assembling of drum unit
At first, four bulging subunits 23 are arranged as adjacent mutually on fore-and-aft direction.As shown in Figure 6, adjacent mutually for four bulging subunits 23 are arranged as, in the alignment bumps 200 of the left frame of the bulging subunit 23 of back is fitted to the recessed pars convoluta 202 of aligning on the left plate 95 of centre frame 72 of bulging subunit 23 in front.Also have, make the back edge surface that contacts the left side frame 71 of bulging subunit 23 in front in the front edge surface of the left side frame 71 of the bulging subunit 23 of back.By this way, each drum subunit 23 is arranged on the fore-and-aft direction adjacent mutually, simultaneously each top to back bottom angled in the past all.
Secondly, it is adjacent with drum subunit 23 that front-axle beam 96 is provided in the place ahead far away.Also have, it is adjacent with drum subunit 23 that the back rest 111 is provided in rear far away.Adjacent in order to make front-axle beam 96 be arranged in the place ahead far away with drum subunit 23, make at the left frame 70 of the bulging subunit 23 in the place ahead far away and the front edge surface of left side frame 71 to contact with the inclined-plane 102 that leans forward of front-axle beam 96.At this moment, the alignment bumps 200 at the left frame 70 of the bulging subunit 23 in the place ahead far away is fitted in the recessed pars convoluta 21 of aligning of formation on the inclined-plane 102 that leaning forward.In addition, adjacent in order to make the back rest 111 be provided in rear far away with drum subunit 23, make at the left plate 95 of the bulging subunit 23 at rear far away and the back edge surface of left side frame 71 to contact with the hypsokinesis inclined-plane 115 of the back rest 111.
As shown in figure 23, each side plate 121 is arranged on the both sides of (arranging along fore-and-aft direction) 96, four the bulging subunits 23 of front-axle beam and the back rest 111 on Width.Then, each side plate 121 usefulness bolts 136 are assembled to 96, four the bulging subunits of front-axle beam and the back rest.
In order to be assemblied in the left plate 121 in 96, four bulging subunits 23 of front-axle beam and the left side of the back rest 111 on Width, the preceding bolt-inserting hole 128 of left plate 121 is arranged in above the Width bolt part 103 before the left side of front-axle beam.Then, the rear side bolt-inserting hole 129 of left plate 121 is placed in and makes the position of bolt-inserting hole 129 in the face of bolt part 114 behind the left side of the back rest 111.At last, bolt-inserting hole 132 roused the bolt part 85 of subunit 23 in the middle of the middle bolt-inserting hole 132 of left plate 121 was arranged to make to each on Width.
Then, make the inwall of left plate 121 contact the raised line 84 of each left frame 71 that rouses subunit 23 and the raised line 84 of centre frame 72.The axial left hand edge of drum axle 27 is inserted into each axis hole 124 of left plate 121.Meanwhile, the protrusion 75 of left side frame 71 in the left side of each drum subunit 23 is fitted to each light of left plate 121 and propagates in hole 123, makes to protrude 75 and outwards appear on Width.The left plate 121 that has limited with respect to each drum subunit 23 at each protrusion 75 that rouses the adaptive left side frame 71 in left side of subunit 23 is the rotation at center with drum axle 27.
As shown in Figure 7, for left plate 121 being assembled to 96, four bulging subunits 23 of front-axle beam and the right side of the back rest 111 on Width, the preceding bolt-inserting hole 128 of right plate 121 is arranged in above the Width bolt part 103 (see figure 5)s before the right side of front-axle beam.Then, the rear side bolt-inserting hole 129 of right plate 121 is placed in and makes the position of rear side bolt-inserting hole 129 in the face of bolt part 114 (see figure 5)s behind the right side of the back rest 111.
Then, the inwall of right plate 121 is contacted with the raised line 84 of the left side frame 71 of each drum subunit 23 and the raised line 84 of centre frame 72.The axial right hand edge of drum axle 27 is inserted into each axis hole 124 of right plate 121.Meanwhile, the protrusion 75 of left side frame 71 on the right side of each drum subunit 23 is fitted to each light of right plate 121 and propagates in hole 123, makes to protrude 75 and outwards appear on Width.In addition, the periphery of each drum subunit 23 cooperates wall 94 to be fitted to the central opening 133 of right plate 121.The right plate 121 that has limited with respect to each drum subunit 23 at each protrusion 75 that rouses the adaptive left side frame 71 in right side of subunit 23 is the rotation at center with drum axle 27.
So bolt 136 is inserted into preceding bolt-inserting hole 128, and bolt part 103 before being screwed into.Bolt 136 is inserted into back bolt-inserting hole 129 and is screwed into back bolt part 114 then.By this way, right plate 121 is assembled to the right side of 96, four the bulging subunits 23 of front-axle beam and the back rest 111.
In the drum unit 21 of as above assembling, drum axle 27 axial two ends are roused between the left plate 95 and left side frame 71 of the centre frame 72 in subunit 23 at each by the literary composition support.Shown in Fig. 7 and 8, the two ends of drum axle 27 are inserted in the axis hole 124 of each side plate 121.
Center, hole with respect to axis hole 124 is squeezed on the direction opposite with appearing part the axial end of drum axle 27 at axis hole 124 places of wire spring 127.In other words, bulging 27 extruding that is subjected to above-mentioned wire spring 127 at last rear to inclination.By this way, drum axle 27 axial two ends are pushed by wire spring 127 and are contacted with the neighboring of axis hole 124.So drum axle 27 axial two ends are aimed between pair of side plates 121.
In addition, the aiming axis 204 of front-axle beam 96 is inserted into axle and appears hole 216.Axial two ends outwards appear from each side plate 121 on Width.
As shown in Figure 8, when observing from the side, the back edge of the rear wall notch 108 on each rear wall 112 does not appear with respect to the back edge of the notch 179 on each side plate 121.
In the drum unit 21 of as above assembling, each that on left plate 121, forms to outer join patchhole 130 on Width to inside connection insertion section 74 in the left side of each drum subunit 23.
In addition, left cap 180 (seeing shadow region among the figure) is arranged to corresponding to each drum subunit 23 on the latter half of the left plate 121 of drum unit 21.When seeing from the side, each left cap 180 is formed the sheet of convex.Each left cap 180 is made by electro-insulating rubber or sponge.Each left cap 180 inserts the obturator hernia (not shown) with locking wire spring 127.Insert obturator hernia and prevent that exotic from entering obturator hernia, appear drum axle 27 simultaneously, axis hole 124 is to outer join patchhole 130 and bolt 136.
As shown in Figure 7, in drum unit 21, gate electrode 81 and silk electrode 80 outwards appear at the central opening 133 that right plate 121 forms from each on Width.Developer carrier electrode 82 outwards appears from each open front 134 on Width.Cleaning electrode 83 outwards appears from after-opening 135 on Width.
Right cap 181 (seeing shadow region among the figure) is corresponding to each drum subunit 23 on the latter half of the right plate 121 of drum unit 21.When observing from the side, each right cap 181 forms the sheet of protuberance.Each right cap 181 is made by electro-insulating rubber or sponge.Each right cap 181 inserts central opening 133, open front 134 and after-opening 135, thus prevent that exotic from entering, appear drum axle 27 simultaneously, developer carrier electrode 82, silk electrode 80, gate electrode 81 and cleaning electrode 83.
In addition, left cap 180 and right cap 181 have insulation characterisitic.Insulation characterisitic prevents to provide the power supply to each electrode to leak by side plate 121.
Use this program step, drum subunit 23 and drum unit 21 are assembled.As mentioned above, left frame 70 can not be assembled together with miscellaneous part (left side frame 71 and centre frame 72).On the contrary, rousing subunit 23 can finish by centre frame 72 (left side frame 71 assemblings so far) is assembled to side plate 121 (left frame 70 assembled in advance so far).
As shown in figure 23, each left frame 70 is arranged on inboard on the Width with respect to left plate 121.Also have, the inwall of left plate 121 contacts the raised line 84 of each left frame 70.Also have, the protrusion 75 of each left frame 70 is fitted to each light of left plate 121 and propagates in the hole 123, therefore protrudes 75 and outwards appears on Width.
Then, the bolt part of each left frame 70 85 is in the face of centre bolt patchhole 132, and centre bolt patchhole 132 was positioned on the left plate 121 each before outer join patchhole 130.Bolt 132 inserts centre bolt patchhole 132 and is screwed into bolt part 85.By this way, each left frame 70 is assembled to left plate 121.Then, left plate 121 (each left frame 70 is assembled so far), front-axle beam 96, the back rest 111 and right plate 121 are assembled on each centre frame 72 (left side frame 71 is assembled so far) as mentioned above.
In contrast, as shown in Figure 6, by arranging a plurality of bulging subunits 23 and alignment bumps 200 is fitted in the recessed bent aligned portions 202, the left frame 70 of drum subunit 23 can be assembled on the left plate 95 of bulging subunit 23 of front.Side plate 121 can be assembled after the installation of a plurality of bulging subunits 23, thereby makes the building drum unit relatively easy.
3. Delevoping cartridge
Figure 11 to 13 shows how Delevoping cartridge constructs.
(1) Delevoping cartridge
As shown in figure 11, in Delevoping cartridge 22, developer carrier 34 is arranged to make its opening 36 from the feather edge of developing hanger 31 to appear downwards.In addition, the developer carrier axon 45 of developer carrier 34 is supported in rotating mode by two sidewalls 141 of developing hanger 31.Developer carrier axon 45 is arranged to make its axial two ends to extend to two sidewalls 141 on Width.In addition, ring element 50 covers the two ends of developer carrier axon 45.Ring element 50 forms the hollow tube (seeing the solid arrow among Figure 11) of certain outer diameter D.Outer diameter D is equal to or slightly less than the groove width B (see figure 4) of deepest part 153 and 154.In addition, between the outer surface of left side edge surface on the Width and ring element 50, form the ring surface 185 of inclination.Ring element 50 is arranged at the left end of developer carrier 45 as inclined surface.Ring element 50 chamferings are to connect above-mentioned each parts.
The feed member 182 of conduction is arranged on the right plate 141 of Delevoping cartridge 22.The cylinder 184 that feed member 182 comprises bearing 183 and extends from the top edge outside (to the right) of bearing 183 on Width.Cylinder 184 forms the hollow tubular of certain external diameter E (seeing the dotted line among Figure 11).Cylinder 184 stretches out to the right on Width.Be compared to ring element 50 on the right side on the Width on Width outside (right side) edge surface, cylinder 184 on Width outside (right side) edge surface be positioned right side (on left and right directions).In addition, external diameter E is greater than the outer diameter D of ring element 50 and the groove width B (see figure 4) of deepest part 153 and 154.External diameter E is substantially equal to or is slightly less than the groove width A of right guiding groove 73 (see figure 4)s.Feed member 182 is by being attached to developing hanger 31 at axial (left and right directions) with respect to the bolt that cylinder 184 (seeing Figure 15) inserts.
As shown in figure 13, when observing from the side, bearing 183 forms the shape of thin rectangular plate.Dead eye 188 penetrates bearing 183 at feather edge on thickness direction.The feather edge of bearing 183 is being positioned on the left and right directions between right side wall 141 and the ring element 50.Developer carrier axon 45 is inserted the dead eye 188 of bearing 183.Developer carrier axon 45 is supported by two sidewalls 144 and bearing 183 in rotating mode.
As shown in figure 12, release projection 212 is formed at the back edge of top edge of two sidewalls 141 of developing hanger 31.Release projection 212 forms on Width from the hollow tube of two sidewalls 141 to outer lug.
In addition, as shown in figure 13, alignment bumps 217 is formed on the position of antetheca close window 142 on two edges on the left and right directions of developing hanger 31.
When observing from the side, alignment bumps 217 is trapezoidal.Alignment bumps 217 is from the antetheca projection of developing hanger 31.
The window 142 that is used for surveying the surplus of toner is positioned at two sidewalls 141 of developing hanger 31.This window 142 allows to survey light (in order to the surplus of the toner in the optical detection toner container 37) and propagates on Width.The toner amount is determined with optical sensor 173.Optical sensor 173 comprises photocell 174 and light receiving element 175 (seeing Figure 17).
As shown in figure 12, gear mechanism (not shown) (being covered by gear cap 143) is arranged on the left side wall 141 of Delevoping cartridge 22.This gear mechanism is included on the Width from the passive connection gear 144 of gear cap 143 to outer lug (to the left).Gear mechanism also comprises and passive connection gear 144 interactional gear train (not shown)s.
Passive connection gear 144 is cylindrical.Connecting insertion groove 187 (shape that has numeral 8 when observing from the side) is formed on from left hand edge on right-hand left hand edge in recessed bent mode.Gear teeth (not shown) is positioned on the circumference of right hand edge.The diameter of passive connection gear 144 is greater than the external diameter E of cylinder 184 (seeing Figure 11).
As shown in figure 11, passive connection gear 144 on Width to the cylinder 184 of feed member 182.More specifically, the central shaft of passive connection gear 144 on front and back and top end direction with the central axial alignment of cylinder 184.
In addition, the diameter of passive connection gear 144 is greater than the diameter of cylinder 184.Passive connection gear 144 on Width from ring element 50 to outer lug.The left hand edge rat of passive connection gear 144, therefore when Delevoping cartridge 22 is installed in the bulging subunit 23, the left hand edge surface be positioned at respect to left guiding groove 189 on Width outside inboard (right side) slightly, (left side) edge.
Cylinder outer cover 186 on gear cap 143 corresponding to passive connection gear 144.Cylinder outer cover 186 and passive connection gear 144 provide the function that drives input part.Cylinder outer cover 186 is hollow circuit cylinders, has external diameter F (seeing dotted arrow among the figure).Cylinder outer cover 186 is protruding left from the left surface of gear cap 143.The external diameter F of cylinder outer cover 186 is slightly larger than the external diameter of passive connection gear 144.In other words, external diameter F is greater than the external diameter E of cylinder 184.In addition, the external diameter F of cylinder outer cover 186 is greater than the groove width A of right guiding groove 73.External diameter F is substantially equal to or is slightly less than the groove width C of left guiding groove 189 (see figure 6)s.As shown in figure 12, cylinder outer cover 186 covers the circumference of passive connection gear 143.The left hand edge surface of cylinder outer cover 186 is mutually concordant with the left hand edge surface of passive connection gear 144.Cylinder outer cover 186 is opening to the left.
As mentioned below, connect input shaft 145 (seeing Figure 18) (for being arranged at the driven in rotation body in the main body cover 2) and be connected to passive connection gear 144, so connect input shaft 145 and the rotation relative to each other of passive connection gear 144.Driving force from the motor (not shown) is passed to connection input shaft 145.
The gear train (not shown) comprises the stirrer-driven gear of the rotation axis 41 that meshes stirrer 32.Gear train also comprises the donor rollers driven wheel with supply roll shaft 43 engagement of donor rollers 33.Gear train further comprises the developer carrier driven wheel of the developer carrier axon 45 that meshes developer carrier 34.At last, gear train comprises detection gear 205 and other gears.These gears of gear train are by neutral gear etc. and passive connection gear 144 engagements.
Survey the information of protruding (not shown) corresponding to relevant Delevoping cartridge 22.Herein, the information of relevant Delevoping cartridge 22 is that Delevoping cartridge is newly to be the old or relevant information that is used for printable page quantity of Delevoping cartridge 22.
When drum unit 21 (Delevoping cartridge is installed in wherein) is installed in the main body cover 2, be passed to the gear teeth of detection gear 205 by input coupking shaft 145 and passive connection gear 144 from the driving force of motor.Detection gear 205 responds these driving forces and rotates.
Along with the rotation of detection gear 205, an end of the detection of detection gear 205 projection (not shown) contact lever 206 (seeing Figure 23).Bar 206 is arranged in the bulging subunit 23.Because this surveys projection, bar 206 moves around bar shifting axle 207.Also have, the other end of bar 206 is protruding left from bar transfer hole 208 (see figure 8)s of side plate 121.The other end of bar 206 is surveyed by the acquisition sensor (not shown) that is arranged in the main body cover 2.The result of detection of acquisition sensor (not shown) is that the detection times of for example bar 206 and single are surveyed required time, and CPU (do not show but in main body cover) determines the information about Delevoping cartridge 22.
But Delevoping cartridge grip part 146 is arranged on the developing hanger 31.But Delevoping cartridge grip part 146 forms the long thin plate of left and right directions.But Delevoping cartridge grip part 146 is arranged on the roof 147 of developing hanger 31.
In addition, but the rotation axis (not shown) on the back edge of Delevoping cartridge grip part 146, insert.This rotation axis is supported by the rotating shaft (not shown) by the back edge of the roof 147 of developing hanger 31.
But Delevoping cartridge grip part 146 has the gripped slotted hole 209 of shape (when observing from the side) in the form of a substantially rectangular at the center on its left and right directions.
As shown in figure 13, but on the leading edge of Delevoping cartridge grip part 146 two edges of left and right directions and with the leading edge of its roof of facing 147 on be connected by elastic component 210 at two edges of left and right directions.Elastic component 210 can be a wind spring for example, leaf spring or spring (for example wind spring).But the leading edge of Delevoping cartridge grip part 146 is squeezed on the direction away from the leading edge of roof 147.
But pressurization projection 211 extends to the leading edge that exceeds Delevoping cartridge grip part 146.
(2) Delevoping cartridge is to the installation of drum unit
As shown in Figure 9, for versicolor Delevoping cartridge 22 is mounted to bulging subunit 23, Delevoping cartridge 22 is installed to downwards on the bulging subunit 23.
More specifically, as shown in figure 15, the ring element 50 of the axial right hand edge of the developer carrier axon 45 of Delevoping cartridge 22 and the cylinder of feed member 182 184 insert in the right guiding groove 73 (being formed in the left side frame 71 of bulging subunit 23).Meanwhile, as shown in figure 16, ring element 50 (at developer carrier axon 45 left hand edge on axially), passive connection gear 144 and cylinder outer cover 186 (covering the circumference of passive connection gear 144) insert in the left guiding groove 189 between the left plate 95 of the centre frame 72 that is formed on left frame 70 and corresponding bulging subunit 23.So Delevoping cartridge 22 is pushed downwards into bulging subunit 23, cylinder 184 is slided along right guiding groove 73.Also have, cylinder outer cover 186 (covering passive connection gear 144) slides along left guiding groove 189.As mentioned above, Delevoping cartridge 22 be inserted into/remove from the drum subunit 23 direction be the top end direction.
Shown in Figure 15 and 16, when the deepest part 153 of the deepest part 154 of the right guiding groove 73 of ring element 50 contacts on two axial edges of the axle 45 of developing and left guiding groove 189, so Delevoping cartridge 22 is installed on the corresponding bulging subunit 23.
As shown in figure 15, at this moment, the cell wall of the groove width of ring element 50 on axial right side and formation deepest part 154 is in contact with one another.The cell wall of the ring element 50 on as shown in figure 16, on the left of axially and the groove width of formation deepest part 153 contacts with each other.
Alignment roller 218 (see figure 9)s of each Delevoping cartridge 22 contact drum subunits 23.Alignment bumps 217 also contacts alignment roller 218 (see figure 10)s of front-axle beam 96.In addition, the surface of the rubber roll body 46 contact image carriers 24 of developer carrier 34, as shown in Figure 2.
By ring element 50 and deepest part 153 and 154 contact, alignment bumps 217 contacts with alignment roller 218, and developer carrier 34 is aimed at bulging subunit 23 with contacting of image-carrier 24 when Delevoping cartridge 22 is installed in the bulging subunit 23.
More specifically, as shown in figure 16, ring element 50 contacts are 153 and 154 opposed facing cell walls (seeing Figure 15) in the deepest part.Therefore, Delevoping cartridge 22 (that is, connects towards posterosuperior diagonal line with towards inferoanterior cornerwise direction) aligning with respect to drum subunit 23 on the direction of each cell wall of facing deepest part 153 and 154.
When alignment bumps 217 contact float rollers 218, Delevoping cartridge 22 is aimed at towards posterosuperior diagonal line with on inferoanterior cornerwise direction in connection with respect to drum subunit 23.
When developer carrier 34 contact image carriers 24, Delevoping cartridge 22 is aimed on cornerwise direction in posteroinferior diagonal line and last the place ahead in connection on the direction of developer carrier 34 contact image carriers 24.
As a result, Delevoping cartridge 22 is aimed on the end direction of top with respect to drum subunit 22.
In addition, as shown in figure 15, when Delevoping cartridge 22 is installed in the corresponding bulging subunit 23, the protuberance 176 of the cylinder 184 contact feeder loops 155 (being connected to the developer carrier electrode 82 that is arranged on the left side frame 71) of the feed member 182 of developer carrier axon 45.
In addition, as shown in figure 17, when Delevoping cartridge 22 is installed on the corresponding bulging subunit 23, be embedded in left window 142 in the left side wall 141 of developing hanger 31 in the face of protruding 75 (being formed in the left frame 70) and light propagation hole 123 (being formed in the left plate 121).In addition, the right window 142 that is embedded in the right side wall 141 of developing hanger 31 is propagated hole 123 (being formed in the right plate 121) to protruding 75 (being formed in the left side frame 71) and light on Width, propagated so survey luminous energy.This aligning allows light to propagate by developing hanger.
In addition, as shown in Figure 8, passive connection gear 144 (gear cap 143 projectioies from the left side wall 141 of developing hanger 31) connects insertion section 74 (being positioned on the left frame 70) and outer type patchhole 130 (being positioned on the left plate 121) in face inside on the Width.Herein, the connection input shaft 145 (seeing Figure 18) that is arranged on the main body cover 2 can pass freely through forward and on the direction backward.
When all Delevoping cartridges 22 are inserted in the bulging subunit 23, but the nearside grip part 104 of front-axle beam 96, but but the grip part, distally 116 of the Delevoping cartridge grip part 146 of each Delevoping cartridge 22 and the back rest 111 on fore-and-aft direction, overlap mutually, as shown in figure 14.
In addition, when all Delevoping cartridges 22 are inserted in the bulging subunit 23, but each Delevoping cartridge 22 can grip slotted hole 209 and upwards draws the extraction that makes progress then to hold Delevoping cartridge grip part 146 by pointing to insert.
As shown in Figure 1, be installed in as mentioned above in the bulging subunit 23, and after drum unit 21 was installed in the bulging spatial accommodation 161 of main body cover 2, coloured image just can form operate on the paper 3 and form by above-mentioned image at all Delevoping cartridges 22.
4. main body cover
Figure 18 is the synoptic diagram that shows the top view of laser printer inside shown in Figure 1, is connected to the operation that connects input shaft in order to passive connection gear to be described.Figure 19 connects input shaft and arm left side perspective view on every side, in order to connection input shaft shown in Figure 180 and the contact situation between the arm to be described.
Shape (having open front when observing from the side) and drum spatial accommodation 161 (holding drum unit 21) that main body cover 2 has the essentially rectangular box are formed in the main body cover 2.In addition, the drum that is connected to bulging spatial accommodation 161 inserts/removes on the antetheca that opening 162 is formed on main body cover 2.
Be used for the antetheca that protecgulum 163 that the opening/closing drum inserted/removed opening 162 is arranged at main body cover.This protecgulum 163 was inserted/removed the feather edge of opening 162 by the drum that is arranged at main body cover 2 hinge (not shown) supports in rotating mode.By this setting, hinge allows protecgulum 163 to open and close main body cover 2.By this way, when the hinge that is used as the strong point when protecgulum was closed, drum inserted/removes opening 162 and closed by protecgulum 163.When the hinge that is used as the strong point when protecgulum 163 was opened, then drum inserted/removes opening 162 and opens, thus drum unit 21 in the past square tube cross drum and insert/remove opening 162 and be inserted into/remove from drum spatial accommodation 161.
In the drum spatial accommodation 161 roller (not shown) and railing (not shown) are set.The railing (not shown) is on the inwall that extends on the fore-and-aft direction on Width two walls 165 of main body cover 2.Wall 165 is faced on Width mutually.In addition, the roller (not shown) is arranged at the leading edge top of each railing (not shown) on the inwall of two walls 165 in rotating mode, leave little gap with each railing.
Therefore, when the hook 122 of side plate 121 was directed on the railing (not shown) by guiding of roller (not shown) and roller 177, drum unit 21 was inserted on fore-and-aft direction smoothly/is removed from drum spatial accommodation 161.
In addition, be installed in the back edge that alignment rods (not shown) between the inwall of two sidewalls 165 is arranged at bulging spatial accommodation 161.The aligning guide (not shown) is arranged near the roller (not shown) of leading edge of bulging spatial accommodation 161.This aligning guide (not shown) optionally applies backward (directions that drum unit 21 is installed) or the pressure of (direction that drum unit 21 removes) forward to the drum unit 21 that drum holds in the spatial accommodation 161, depends on the opening/closing of protecgulum 163.
More specifically, when drum unit 21 is installed in the bulging spatial accommodation 161 and protecgulum when closing, aiming axis 204 (see figure 7)s of drum unit 21 are aligned mechanism's (not shown) and push backward.In addition, by this way, the alignment rods (not shown) of the notch 179 (see figure 7) contact drum spatial accommodations 161 of each side plate 121, and therefore drum unit 21 is aimed at by aligning guide (not shown) and alignment rods (not shown) in drum spatial accommodation 161 inside.
When protecgulum 163 was opened, the aligning guide (not shown) pushed aiming axis 204 (see figure 7)s of drum unit 21 forward.Notch 179 is discharged from the alignment rods (not shown).Then, the aligning of drum unit 21 in drum spatial accommodation 161 is disengaged.Now, drum unit 21 can remove from drum spatial accommodation 161.
But drum unit 21 is inserted into/removes from drum spatial accommodation 161 by the nearside grip part 104 that is held in operating position.In addition, but when nearside grip part 104 turned to " loaded " position, protecgulum 163 can be closed.But the rotation of interlocking nearside grip part 104 and the opening/closing of protecgulum 163 are acceptables.
The dish spatial accommodation 171 that holds paper disc 7 is formed on bulging spatial accommodation 161 belows of main body cover 2.In addition, the dish that is connected to dish spatial accommodation 171 inserts/removes the antetheca that opening 172 is formed on main body cover 2.
Paper disc 7 is installed in the dish spatial accommodation 171, so paper disc 7 can slide along fore-and-aft direction.Draw paper disc 7 when paper disc 7 is installed in the dish spatial accommodation 171 forward, paper disc 7 can be removed from dish spatial accommodation 171.
In addition, as shown in figure 18, left side wall 165 can comprise the outer wall 192 on outer (left side) surface that forms Width and form the inwall 193 on interior (right side) surface of Width.
As shown in figure 19, upwardly extending slotted hole 197 (connecting input shaft 145 inserts wherein) is arranged on the cam 196 in front and back.Thick back off area 198 (thick on the Width) is arranged at around the back edge of slotted hole 197.(thin on the Width) is arranged at around the leading edge of slotted hole 197 in the thin zone 199 of advancing.
Shown in Figure 18 B and 18D, connect the connection patchhole 187 of input shaft 145 in the face of the passive connection gear 144 of drum unit 21.Be applied to connection input shaft 145 from the rotary driving force that is arranged on the motor (not shown) in the main body cover 2.In addition, connect input shaft 145 always on Width (for example, towards connecting patchhole 187) inwardly (right side) be squeezed.
Be inserted into/remove in the process of autonomous agent shell 2 at drum unit 21, when protecgulum 7 was opened, shown in Figure 19 B, arm 194 moved forward by the interlocking of opening with protecgulum 163.Safety zone 198 engages with connection input shaft 145.So, shown in Figure 18 B and 18D, connect input shaft 145 and upward retreat into left side (outside on Width) in the direction (Width or left and right directions) of the rotation axis that connects input shaft 145 from the connection patchhole 187 of passive connection gear 144 by the pressure of resisting from the spring (not shown).
After drum unit 21 was mounted to main body cover 2, when protecgulum 7 was closed, arm 194 also moved backward with the interlocking of closing of protecgulum 163.Shown in Figure 19 A, the zone 199 of advancing engages with connection input shaft 145.So, shown in Figure 18 A and 18C, connect input shaft 145 on the right side (inboard on Width) advance towards the connection patchhole 187 of passive connection gear 144.Connect input shaft 145 to connect relative to the mode that can not rotate.
By this way,, be passed to from the driving force of motor (not shown) and connect input shaft 145/ and be delivered to passive connection gear 144 from connecting input shaft 145 and transmitting again at each Delevoping cartridge 22.Correspondingly, stirrer 21, donor rollers 33, developer carrier 34 and detection gear 205 are driven in rotation by the gear train (not shown).
In addition, as shown in Figure 7, the wiring terminal that is connected to high voltage substrate (not shown) is connected to an electrode 80, gate electrode 81 (appearing), developer carrier electrode 82 (appearing) and cleaning electrode 83 (appearing) from after-opening 135 from each open front 134 from each central opening 133 that is formed on the right plate 121.
In addition, pressure release mechanism not shown in the diagram is arranged at the top of the bulging spatial accommodation 161 of main body cover 2.This pressure release mechanism (not shown) allows color printer 1 to depend on that user's target selection ground forms coloured image (using four bulging subunits 23) and monochrome image (only using black drum subunit 23K).
More specifically, when drum unit 21 inserted drum spatial accommodation 161, protecgulum 163 was closed, and connection input shaft 145 is connected to passive connection gear 144.Then, be that the formation coloured image or the selection of monochrome image are undertaken by the operation to the guidance panel (not shown).
Depend on this selection, when forming coloured image, what the extruding downwards of pressure release mechanism (not shown) was installed in four Delevoping cartridges 22 on the drum unit 21 pushes projection 211.At this moment, but projection 211 grip parts 146 disposed thereon of pushing of each Delevoping cartridge move towards the leading edge of the roof 147 of developing hanger 31 pressure with respect to elastic component 210.Along with this moves, but the pressure of elastic component 210 acts on the leading edge of the roof 147 of developing hanger 31 in (downwards) on the direction that discharges from Delevoping cartridge grip part 146.Therefore, the developing hanger 31 of four Delevoping cartridges 22 moves down.Also have, the rubber roll body 46 of developer carrier 34 (being supported by each developing hanger 31) is pressed against the surface of image-carrier 24, as shown in Figure 2.Therefore, the toner from each developer carrier 34 is provided to each image-carrier 24, permission formation coloured image.
When forming monochrome image, as shown in Figure 7, the pressure release mechanism (not shown) only is pressed in pushing on the projection 211 of black Delevoping cartridge 22K in four Delevoping cartridges 22 that are installed in the drum unit 21 downwards.On the contrary, the pressure release mechanism (not shown) upwards is pressed on the pressure release projection 212 of Delevoping cartridge 22 of non-black Delevoping cartridge 22K.Therefore, black Delevoping cartridge 22K moves down, the rubber roll body 46 of the developer carrier 34 of black Delevoping cartridge 23K is pressed against the surface of the image-carrier 24 of black drum subunit 23K, Delevoping cartridge 22 outside the black Delevoping cartridge 22K moves up, and the rubber roll body 46 of the developer carrier 34 of each described Delevoping cartridge 22 is discharged from each image-carrier 24.Therefore, toner only provides to the image-carrier 24 of black drum subunit 23K from the developer carrier 34 of Delevoping cartridge 22K, thereby allows to form monochrome image.
In addition, if in image forming course paperboard, the pressure release mechanism (not shown) provides to the release projection 212 of all Delevoping cartridges 22 and upwards pressure.By this way, the rubber roll body 46 of the developer carrier 34 of all Delevoping cartridges 22 is discharged from image-carrier 24, allows easily to remove the paper 3 that blocks.
In addition, as shown in figure 17, in main body cover 2, be provided for surveying the optical sensor 173 of the residue toner amount of holding in the toner container 37 corresponding to each Delevoping cartridge 22.
Each optical sensor 173 comprises photocell 174 and light receiving element 175.Photocell 174 and light receiving element 175 are crossed drum unit 21 mutually in the face of (photocell 174 is on the right side, and light receiving element 175 is in the left side).
Therefore, the detection light of launching from photocell 174 passes the protrusion 75 that fits in the right light propagation hole 123, incides in the toner container 37 by right window 142 then.Light passes toner container 37 and penetrates by left window 142 then.At last, light passes and protrudes 75 (fitting in left light propagates in the hole 123).This light is finally detected by optical detection device 175.
5. effect
Color laser printer 1 comprises passive connection gear 144 and the feed member 182 in the Delevoping cartridge 22.Drum subunit 23 comprises left side frame 71 (forming right guiding groove 73), centre frame 72 and left frame 70 (forming left guiding groove 189).
When passive connection gear 144 is connected to when connecting input shaft 145, provide to developer carrier 34 by the gear train (not shown) reliably from the driving force of motor.
In addition, when the cylinder 184 of feed member 182 contacted feeder loops 155 (being arranged on the bulging subunit 23), power supply was provided to developer carrier 34 (and being recognized as the development bias voltage).Be compared to feeder loop 155 and be arranged at other local situations outside the bulging subunit 23, cylinder 184 can more close feeder loop 155.This mechanism allows to provide power supply to developer carrier 34 reliably.In addition, the size of cylinder 184 can reduce.
In addition, passive connection gear 144 is directed into it is slided on left guiding groove 189.Also have, the cylinder 184 of feed member 182 is directed into it is slided on right guiding groove 73.By this action, Delevoping cartridge 22 is inserted into/removes from drum subunit 23.
This is provided with and allows easily to change Delevoping cartridge 22.In addition, in installation process, the function that Delevoping cartridge 22 guides to bulging subunit 23 be may be added to passive connection gear 144 by left guiding groove 189.This is the function beyond the function of the original function of passive connection gear 144 driving force of promptly transmitting self join input shaft 145.In addition, the function that is guided by right guiding groove 73 in the process that Delevoping cartridge 22 is mounted to bulging subunit 23 may be added to cylinder 184.The original function of cylinder 184 provides the power supply from feeder loop 155.
Therefore, do not need to be provided with the guiding that new element is assisted left guiding groove 189 and right guiding groove 73.
Therefore, Delevoping cartridge 22 and the functional of color laser printer 1 are improved.In addition, the size of color laser printer can be reduced.
Therefore, a plurality of Delevoping cartridges 22 and drum subunit 23 allow to form the image of multiple color.In addition, when image-carrier 24 needs to change, this more transducing based on the easy insertion of a plurality of Delevoping cartridges 22 and drum subunit 23/remove easily and carry out.
In addition, connecting input shaft 145 can move forward and backward on turning axle direction (left and right directions).
Therefore, when connection input shaft 145 engages with the zone 199 of advancing of arm 194, connect input shaft 145 and advance to the right towards the connection patchhole 187 of passive connection gear 144.Connecting input shaft 145 also is connected to not rotatable relatively.In addition, when connection input shaft 145 engages with the back off area 198 of arm 194, connect input shaft 145 and retreat left from connecting patchhole 187.Correspondingly, connecting input shaft 145 was disengaged with being connected of passive connection gear 1447.
Passive connection gear 144 and the connection that connects between the input shaft 145 can be interlocked with the opening/closing of protecgulum 163 in drum unit 21 is inserted into/removes the process of bulging spatial accommodation 161 of autonomous agent shell 2 with separating.Can improve the practicality of color laser printer 1 like this.
Correspondingly, the functional of color laser printer 1 is improved.
In addition, the circumference of passive connection gear 144 is covered by cylinder outer cover 186.Therefore, when being guided by left guiding groove 189, passive connection gear 144 can be avoided directly contacting with left guiding groove 189.Can reduce the danger of passive connection gear 144 damaged in collision like this.
As a result, Delevoping cartridge 22 can be reliably with can insert/removable mode is installed in the bulging subunit 23.
In addition, Delevoping cartridge 22 is arranged to make developer carrier 34 to appear in the downstream that Delevoping cartridge 22 is installed to the direction in the bulging subunit 23 downwards.Developer carrier 34 can appear from the opening 36 that is in developing hanger 31 bottoms.The two ends of the developer carrier axon 45 of developer carrier 34 are covered by ring element 20.
In the installation process of drum subunit 23, Delevoping cartridge 22 is aimed at respect to drum subunit 23 when the deepest part 154 of the deepest part 153 of the left guiding groove 189 of ring element 50 contact and right guiding groove 73.So just allow Delevoping cartridge 22 to be installed in the bulging subunit 23 with high precision.In addition, the ring element downstream that is arranged in installation direction is adjacent to developer carrier axon 45.Developer carrier 34 can be reliable and contact image carrier 24 stably.
Therefore, when drum subunit 23 is installed in the main body cover 2, connects input shaft 145 and can be connected to passive connection gear 144 reliably.Therefore, driving force can be passed to developer carrier 34 reliably.In addition, feeder loop 155 can contact the cylinder 184 of feed member 182 reliably, thereby allows to provide power supply reliably to developer carrier 34.
When ring element 50 in installation process, carry out Delevoping cartridge 22 with respect to drum subunit 23 on time, the aligning of developer carrier 34 two ends of developer carrier axon 45 (owing to covered by ring element 50) can carry out with high precision.
As a result, Delevoping cartridge 22 can accurately be mounted to bulging subunit 23.In addition, cover two ends with ring element 50 and allow the damage of minimizing developer carrier axon 45.In addition, the length of developer carrier axon 45 can be reduced.
Edge with chamfering between the left hand edge surface of the ring element 50 of developer carrier axon 45 and circumference forms the ring surface 185 of inclination.
Therefore when Delevoping cartridge 22 was inserted into/removes from drum subunit 23, the friction energy that the contact between the left guiding groove 189 of the left hand edge of ring element 50 and drum subunit 23 produces was reduced.
So just allowing Delevoping cartridge 22 being inserted into/removing on the direction of drum subunit 23 smoothly moves.So also just allow with Delevoping cartridge with can insert/removable mode is mounted to bulging subunit 23 reliably.
Passive connection gear 144 on Width (left and right directions) from ring element 50 to outer lug (left).Width is perpendicular to Delevoping cartridge 22 and is inserted into/removes the direction of the direction of drum subunit 23 certainly.In addition, cylinder outer cover 186 is mutually concordant with the left hand edge surface of passive connection gear 144.
Passive connection gear 144 and cylinder outer cover 186 (covering the circumference of passive connection gear 144) can be near connecting input shaft 145.Therefore, when drum subunit 23 was inserted in the main body cover 2, passive connection gear 144 can be connected to reliably and connect input shaft 145.So just allow the driving force reliable delivery to developer carrier 34.
In addition, shown in Figure 18 C and 18D, when Delevoping cartridge 22 was installed in the drum unit 23, the left hand edge surface of passive connection gear 144 is the inner bulge of guiding groove 189 (being compared to outer (left side) edge) a little left.This be compared to the position shown in Figure 18 A and the 18B (the left hand edge surface of wherein passive connection gear 144 with respect to left guiding groove 189 on Width inboard (right side) and be positioned at inboard (right side)).For Figure 18 C and 18D, connect input shaft 145 on rotating shaft direction (left and right directions) in order to be connected to mobile can being minimized that passive connection gear 144 carries out.
Therefore, when the amount of movement that connects input shaft 145 is X (seeing the arrow among Figure 18 D) at present embodiment, and the amount of movement that connects input shaft 145 is in comparative example during for Y (seeing the arrow among Figure 18 B), and the size (width) of main body cover 2 on the turning axle direction that connects input shaft 145 can reduce quantity Z.Quantity Z equals the poor of amount of movement Y and amount of movement X.Therefore, the size of color laser printer 1 can be reduced.
The cylinder 184 of feed member 182 on Width to outer lug (to the right).Be compared to the edge surface in the outside (right side) of ring element 50 on Width, the edge surface in the outside (right side) of cylinder 184 on Width is on the right side.
Therefore, cylinder 184 can more close feeder loop 155.So just allowing reliably provides power supply to developer carrier 34.
The diameter of passive connection gear 144 is greater than the diameter of cylinder 184.This bigger diameter provides the rigidity bigger than cylinder 184 to passive connection gear 144.
As a result, come the driving force of self join input shaft 145 can stably be passed to passive connection gear 144.
In addition, passive connection gear 144 on Width to cylinder 184.More specifically, the central shaft of passive connection gear 144 on fore-and-aft direction and top end direction with the central shaft coupling of cylinder 184.
Therefore, when Delevoping cartridge 22 is installed in the bulging subunit 23, come the driving force of self join input shaft 145 to be passed to passive connection gear 144.So just prevent from the big influence of reversing on cylinder 184 and feed member 182, though this reverse produce from and to concentrate on passive connection gear 144 also be like this.
As a result, the positional fault of feed material 182 can be prevented from.Herein, feeder loop 155 contact cylinders 184, thus allow to the developer carrier 34 stable power supplys that provide.
In addition, be inserted into/remove in the process of drum subunit 23 at Delevoping cartridge 22, the cylinder 184 of passive connection gear 144 (being covered by cylinder outer cover 186) and feed member 182 is all guided by right guiding groove 73 and left guiding groove 189 separately.Delevoping cartridge can be inserted into with being stabilized/remove from drum subunit 23, can not lose itself and the aiming at of other parts of system.
Therefore, this be provided with permission with Delevoping cartridge 22 with can insert/removable mode is mounted to bulging subunit 23 reliably.
The groove width C of left side guiding groove 189 is greater than the groove width A of right guiding groove 73.Be substantially equal to or be slightly less than the groove width A of right guiding groove 73 by the external diameter E of the cylinder 184 of right guiding groove 73 guiding.The external diameter F of cylinder outer cover 186 (by 189 guiding of left guiding groove and cover passive connection gear 144) is greater than the groove width A of right guiding groove.External diameter F is substantially equal to or is slightly less than the groove width C of left guiding groove 189.
Based on such structure, passive connection gear 144 and cylinder outer cover 186 are smoothly by left guiding groove 189 guiding.Also have, cylinder 184 is smoothly by right guiding groove 73 guiding.
When passive connection gear 144 and cylinder outer cover 186 in the face of right guiding groove 73 and cylinder 184 during in the face of left guiding groove 189, passive connection gear 144 and cylinder outer cover 186 are by right guiding groove 73 guiding.Correspondingly, Delevoping cartridge 22 can not be mounted to bulging subunit 23.Therefore, can prevent that Delevoping cartridge 22 mistakes are mounted to bulging subunit 23.
Therefore, this is provided with assurance Delevoping cartridge 22 correctly is mounted to bulging subunit 23.
6. modification
(1) modification 1
Figure 20 display update example 1 is applied to the bulging subunit on it and the left side view of Delevoping cartridge.Modification 1 shows that Delevoping cartridge is inserted into/removes the state from the drum subunit.Figure 21 is applied to the bulging subunit on it and the right side view of Delevoping cartridge for modification 1.For illustrative purposes, right guiding groove is appeared, among the figure and shown Delevoping cartridge be inserted into/remove from the drum subunit state.
In Figure 20 and 21, Shuo Ming the identical numeral of mutual component mark before.Explanation to this mutual component is omitted.
Shown in Figure 15 and 16, in the present embodiment, in the process that is installed to bulging subunit 23, when 1) ring element 50 contact deepest parts 153 and 154,2) alignment bumps 217 contact float rollers 218, and 3) during developer carrier 34 contact image carriers 24, Delevoping cartridge 22 is aimed at respect to drum subunit 23.
In such embodiments, as modification, cylinder outer cover 186 (covering the circumference of passive connection gear and the cylinder 184 of feed member 182) is implemented alignment function, replaces the alignment function of being implemented by ring element 50.In this case, the external diameter of ring element 50 can be less than outer diameter D (being compared to the diameter of the ring element 50 among Figure 11).
In this case, as shown in figure 20, the feather edge of preceding recessed pars convoluta 69 is towards rear side vertical wall 138 projectioies at left guiding groove 189 places.Interval before projection amount is configured to make between the top edge of the feather edge of recessed pars convoluta 69 and recurve pars convoluta 152 is less than the external diameter F of cylinder outer cover 186.In addition, the last rear of the feather edge of recessed pars convoluta 69 before the top edge of recurve pars convoluta 152 is positioned obliquely.
In addition, as shown in figure 21, the recessed bent aligned portions 220 of the continuous recessed song in rear portion from the rear side cell wall to right guiding groove 73 is formed on the position of rear side trough wall surface to cylinder 184 of right guiding groove 73 when Delevoping cartridge 22 is installed in the bulging subunit 23.
In so bulging subunit 23, shown in Figure 21 A, the ring element 50 of the right hand edge of developer carrier 45 on Width of Delevoping cartridge 22 and the cylinder of feed member 182 184 insert in the right guiding groove 73.Meanwhile, shown in Figure 20 B, the ring element 50 of the left hand edge of developer carrier 45 on Width, the cylinder outer cover 186 of the circumference of passive connection gear 144 and the passive connection gear 144 of covering inserts in the left guiding groove 189.So Delevoping cartridge 22 is pushed downwards to drum subunit 23, so cylinder 184 slides along right guiding groove 73.Also have, the cylinder outer cover 186 that covers passive connection gear 144 slides along left guiding groove 189.
So shown in Figure 21 B, the cylinder 184 of feed member 182 contacts the upper bottom portion of the lug boss 176 of feeder loop 155 obliquely.Because this reason, cylinder 184 are pressed to rear (from feeder loop 155 towards recessed bent aligned portions 220) with being tilted.Also have, cylinder 184 closes in the side edge of recessed bent aligned portions 220.
Shown in Figure 20 A, the distance between the feather edge of the top edge of recurve pars convoluta 152 and preceding recessed pars convoluta 69 is less than the external diameter F of cylinder outer cover 186.Therefore, passive connection gear 144 (its circumference is covered by cylinder outer cover 186) is in the top edge of recurve pars convoluta 152 and the feather edge engagement of preceding recessed pars convoluta 69.At this moment, passive connection gear 144 (its circumference by cylinder outer cover 186 cover) receives and is connected to inferoanterior side from the rear on inclination is connected to of the feather edge of the top edge of recurve pars convoluta 152 and preceding recessed pars convoluta 69 and inclination and upwards pressure.
At this moment, ring element 50 is arranged in deepest part 153 and 154.But ring element 50 does not contact deepest part 153 and 154.
As mentioned above, when cylinder 184 contact feeder loops 155 and when the top edge of recessed bent aligned portions 220 engages, and when passive connection gear 144 (its circumference by cylinder outer cover 186 cover) during in the engagement of the feather edge place of the top edge of recurve pars convoluta 152 and preceding recessed pars convoluta 69, Delevoping cartridge 22 rear and inclination on inclination is connected to are connected on the inferoanterior direction aims at respect to drum subunit 23.This aligning direction is identical with the aligning direction of aiming at ring element 50.
Therefore, cylinder 184 and passive connection gear 144 can replace ring element 50 with respect to drum subunit 23 aligning Delevoping cartridges 22.
Can outside the original function of the cylinder 184 of passive connection gear 144 and feed member 182, add the function that Delevoping cartridge 22 is aimed at respect to drum subunit 23.That is, can add the function of transmitting on the passive connection gear 144 from the driving force that connects input shaft 145, with the function of feed power supply when cylinder 184 contacts feeder loop 155.
As a result, Delevoping cartridge 22 and the functional of color laser printer 1 are improved.
(2) modification 2
Figure 24 is the left side perspective view that modification 2 is applied to the Delevoping cartridge on it, shows the rear side of Delevoping cartridge among the figure.In Figure 24, Shuo Ming the identical numeral of mutual component mark before.Explanation to this mutual component is omitted.
As shown in figure 24, in this Delevoping cartridge 22, the circumference of passive connection gear 144 can outwards appear.More specifically, the left hand edge of cylinder outer cover 186 mates the right hand edge of ring element 50 on left and right directions.
In other words, the circumference in the part of the passive connection gear 144 in the left side of the left hand edge of cylinder outer cover 186 is covered by cylinder outer cover 186.Because should be provided with, when Delevoping cartridge 22 was inserted into/removes from drum subunit 23, this part circumference of passive connection gear 144 slided on left guiding groove 189, but not slides on cylinder outer cover 186.
(3) modification 3
Figure 25 is the left side perspective view that modification 3 is applied to the Delevoping cartridge on it, shows the rear side of Delevoping cartridge among the figure.In Figure 25, Shuo Ming the identical numeral of mutual component mark before.Explanation to this mutual component is omitted.
As shown in figure 25, in this Delevoping cartridge 22, the circumference of passive connection gear 144 can be covered by cylinder outer cover 186, so passive connection gear 144 leaves the gap with respect to the inner periphery of cylinder outer cover 186 on diametric(al).
In addition, a pair of connection connection bump 119 (turning axle of crossing passive connection gear 144 is faced mutually) can be formed and make its alternative connection patchhole 187 on passive connection gear 144 protruding to the left from the left surface of passive connection gear 144.
This connection connection bump 119 forms and makes its left hand edge mate the left hand edge of cylinder outer cover 186 on left and right directions.The surface of passive connection gear 144 (on the left and right directions to) goes up the patchhole (not shown) that forms digital 8 shapes (this patchhole for from the right hand edge surface left recessed song) on the right hand edge surface of the connection input shaft 145 that is connected to passive connection gear 144.Therefore, when each connection connection bump 119 insertions are used for connecting the patchhole (not shown) of input shaft 145, connect input shaft 145 and be connected to passive connection gear 144.
(4) modification 4
Figure 26,27,28th, modification 4 is applied to the left side perspective view of the Delevoping cartridge on it, shows the rear side of Delevoping cartridge among the figure.At Figure 26, in 27,28, Shuo Ming the identical numeral of mutual component mark before.Explanation to this mutual component is omitted.
As shown in figure 26, in this Delevoping cartridge 22, the whole circumference of passive connection gear 144 does not need to be covered by cylinder outer cover 186.More specifically, the part of the circumference of only passive connection gear 144 (inserting and remove slip on left guiding groove 189 in the process) is covered by cylinder outer cover 186.
In other words, it is the projection of arc when observing from the side that cylinder outer cover 186 forms a pair of, on fore-and-aft direction passive connection gear 144 is clipped in the middle.This arc and cylindrical formation contrast.When Delevoping cartridge 22 was inserted into/removes from drum subunit 23, cylinder outer cover 186 slided on left guiding groove 189.Therefore, allow to substitute the minimum dimension that passive connection gear 144 slides on left guiding groove 189 as long as cylinder outer cover 186 has, cylinder outer cover 186 is exactly acceptable.As shown in figure 27, the circumferential length of cylinder outer cover 186 can be cylinder outer cover 186 for example shown in Figure 26 roughly half.In addition, as shown in figure 28, the circumferential length of cylinder outer cover 186 can be cylinder outer cover 186 for example shown in Figure 27 roughly half.
(5) modification 5
According to the drum unit 21 separative bulging subunits 23 of the foregoing description, thus Delevoping cartridge 22 with can insert/removable mode be installed in each the drum subunit 23 on.But Delevoping cartridge 22 and drum subunit 23 can form in the mode of integral body.So just allowing will be corresponding to versicolor toner by changing drum unit 21, and developer carrier 34 and image-carrier 24 are changed together.
(6) modification 6
The foregoing description shows the example of tandem color laser printer 1, and image transfer printing wherein directly 3 is carried out from each image-carrier 24 to paper.But various aspects of the present invention are not limited to above-mentioned tandem laser printer.For example, laser printer 1 can be the color laser printer with intermediate transfer type system, and wherein versicolor toner image can temporarily be transferred to transfer article from each optical conductor.Then, the toner image of combination is transferred to paper simultaneously.In addition, this laser printing function forms monochromatic laser printer.This monochromatic laser printer can comprise that single Delevoping cartridge 22 is installed in the processing unit (image formation unit) on the single bulging subunit 23.
Though subject content of the present invention has been used specific to the language of architectural feature and/or mechanical behavior and described, should be appreciated that the subject content of attached claim definition need not be confined to above-mentioned special characteristic or behavior.On the contrary, above-mentioned special characteristic and behavior are used as the example of realizing claim and disclose.The common those of skill in the art in present technique field can carry out numerous other embodiments in the spirit and scope of attached claim, modifications and variations according to the content that this instructions discloses.
Claims (26)
1. an image processing system (1) is characterized in that, this image processing system comprises:
Shell (2);
Image-carrier (24);
The image carrier box (21) that keeps described image-carrier (24), described image carrier box (21) are configured to be installed in the described shell (2), also can remove from described shell (2);
Be configured to the Delevoping cartridge (22) installing or remove with respect to described image-carrier (24), wherein said Delevoping cartridge (22) comprising: the developer carrier (34) that is configured to transmit to described image-carrier (24) developer; Drive input part (144,186), this drives input part (144,186) transmission of drive force to rotate described developer carrier (34); Be configured to contact the electrode (182) of source element (155), described source element (155) provides bias voltage to described electrode (182) when described Delevoping cartridge (22) is installed in the described image carrier box (21);
Be configured to the driven in rotation device (145) that is connected with described driving input part (144); With
Guide (70,71), described guide (70,71) comprising:
Have first guiding wall (70) of first guiding groove (189) of the described driving input part of guiding (144,186), this first guiding groove (189) has first width with respect to the axial cross measure of described image-carrier (24); With
Second guiding wall (71), this second guiding wall (71) have second guiding groove (73) of the described electrode of guiding (182), and described second guiding groove (73) has second width with respect to the axial cross measure of described image-carrier (24),
Wherein said first width and described second width are unequal;
Wherein, described driving input part (144,186) and described electrode (182) axially going up at described image-carrier (24) to outer lug from described Delevoping cartridge (22); And described driving input part (144,186) perpendicular to the breadth extreme on the axial direction of described image-carrier (24) greater than described second width.
2. image processing system as claimed in claim 1 (1) is characterized in that, wherein said guide (70) guides described Delevoping cartridge (22) towards described image-carrier (24).
3. image processing system as claimed in claim 1 or 2 (1) is characterized in that, wherein driven in rotation device (145) is configured to move forward or backward on first direction, and this first direction is the axial of described driven in rotation device (145).
4. image processing system as claimed in claim 1 (1) is characterized in that, wherein said source element (155) is installed on the described image carrier box (21).
5. image processing system as claimed in claim 1 (1) is characterized in that, wherein said source element (155) is installed on the inwall of described shell (2).
6. image processing system as claimed in claim 1 (1) is characterized in that, wherein said first width is greater than described second width.
7. image processing system as claimed in claim 1 (1) is characterized in that, wherein:
Described first width greater than described driving input part (144,186) perpendicular to the breadth extreme on the axial direction of described image-carrier (24).
8. image processing system as claimed in claim 7 (1) is characterized in that, wherein:
Described second width greater than described electrode (182) perpendicular to the breadth extreme on the axial direction of described image-carrier (24).
9. image processing system as claimed in claim 7 (1) is characterized in that, wherein:
The breadth extreme of described driving input part (144,186) is greater than the breadth extreme of described electrode (182).
10. as claim 1, any described image processing system (1) among the 5-9, it is characterized in that, wherein said driving input part (144) and described electrode (182) are arranged on the described Delevoping cartridge (22), described driving input part (144,186) on perpendicular to the axial direction of described image-carrier (24) to described electrode (182).
11. as claim 1, any described image processing system (1) is characterized in that among the 5-9, wherein said Delevoping cartridge (22) further comprises:
Described developer carrier (34) is aimed at the aligned portions (50) of described image carrier box (21).
12. image processing system as claimed in claim 11 (1) is characterized in that, wherein said driving input part (144,186) on perpendicular to the axial direction of described image-carrier (24) than described aligned portions (50) more to outer lug.
13. image processing system as claimed in claim 11 (1) is characterized in that, wherein
Described electrode (182) on perpendicular to the axial direction of described image-carrier (24) than described aligned portions (50) more to outer lug.
14. image processing system as claimed in claim 11 (1) is characterized in that, wherein said aligned portions (50) is attached to two edges of the axle (45) of described developer carrier (34) on the axial direction perpendicular to described image-carrier (24).
15. image processing system as claimed in claim 11 (1) is characterized in that, wherein:
Described aligned portions (50) comprises chamfer surface (185), and this chamfer surface (185) further guides described Delevoping cartridge (22) with respect to the installation of described image carrier box (21) with remove.
16. image processing system as claimed in claim 11 (1) is characterized in that, wherein said aligned portions (50) is described driving input part (144) and/or described electrode (182).
17. image processing system as claimed in claim 1 (1) is characterized in that, wherein said driving input part (144,186) further comprises:
During rotation to the driven spinner (144) of described developer carrier (34) transmission of drive force with surround the outer cover (186) of the circumference of described driven spinner (144).
18. one kind is configured to the Delevoping cartridge (22) installing and remove with respect to the shell (2) of image processing system (1) on first direction, this shell (2) has image-carrier (24), and this Delevoping cartridge (22) has:
Be configured to carry the developer carrier (34) of developer;
Be configured to contact when being mounted when described Delevoping cartridge (22) electrode (182) of source element (155), this source element (155) is configured to provide bias voltage to described electrode (182);
The driving input part (144 of projection on perpendicular to the direction of described first direction, 186), described driving input part (144) is configured in the installation of described Delevoping cartridge (22) and removes in the process guiding (70 by image processing system, 71) guiding, and described driving input part (144) is configured to receive driving force to rotate described developer carrier (34); Wherein, the guide of described image processing system (70,71) comprising:
Have first guiding wall (70) of first guiding groove (189) of the described driving input part of guiding (144,186), this first guiding groove (189) has first width with respect to the axial cross measure of described image-carrier (24); With
Second guiding wall (71), this second guiding wall (71) have second guiding groove (73) of the described electrode of guiding (182), and described second guiding groove (73) has second width with respect to the axial cross measure of described image-carrier (24),
Wherein said first width and described second width are unequal;
Wherein, described driving input part (144,186) and described electrode (182) axially going up at described image-carrier (24) to outer lug from described Delevoping cartridge (22); And described driving input part (144,186) perpendicular to the breadth extreme on the axial direction of described image-carrier (24) greater than described second width.
19. Delevoping cartridge as claimed in claim 18 (22), it is characterized in that, wherein said driving input part (144,186) and described electrode (182) be arranged on the described Delevoping cartridge (22), described driving input part (144,186) on perpendicular to the direction of described first direction to described electrode (182).
20. Delevoping cartridge as claimed in claim 18 (22) is characterized in that, wherein said driving input part (144,186) further comprises:
The outer cover (186) of driven spinner (144) that links to each other with described developer carrier (34) and the circumference that surrounds described driven spinner (144).
21. Delevoping cartridge as claimed in claim 18 (22) is characterized in that, this Delevoping cartridge (22) further comprises:
Described developer carrier (34) is aimed at the aligned portions (50) of described image carrier box (21).
22. Delevoping cartridge as claimed in claim 21 (22) is characterized in that, wherein said driving input part (144,186) on perpendicular to the direction of described first direction than described aligned portions (50) more to outer lug.
23. Delevoping cartridge as claimed in claim 21 (22) is characterized in that, wherein said electrode (182) on perpendicular to the direction of described first direction than described aligned portions (50) more to outer lug.
24. Delevoping cartridge as claimed in claim 21 (22) is characterized in that, wherein said aligned portions (50) is attached to two edges of the axle (45) of described developer carrier (34) on the direction perpendicular to described first direction.
25. Delevoping cartridge as claimed in claim 21 (22) is characterized in that, wherein:
Described aligned portions (50) comprises chamfer surface (185), and this chamfer surface (185) is configured to further to guide described Delevoping cartridge (22) with respect to the installation of described image carrier box (21) with remove.
26. Delevoping cartridge as claimed in claim 21 (22) is characterized in that, wherein:
Aligned portions (50) is described driving input part (144,186) and/or described electrode (182).
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005376119 | 2005-12-27 | ||
| JP2005376119 | 2005-12-27 | ||
| JP2005-376119 | 2005-12-27 | ||
| JP2006-122215 | 2006-04-26 | ||
| JP2006122215 | 2006-04-26 | ||
| JP2006122215A JP4240326B2 (en) | 2005-12-27 | 2006-04-26 | Image forming apparatus and developing cartridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1991623A CN1991623A (en) | 2007-07-04 |
| CN1991623B true CN1991623B (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101725386A Active CN1991623B (en) | 2005-12-27 | 2006-12-27 | Image forming apparatus and developing cartridge |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4423573B2 (en) |
| CN (1) | CN1991623B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5159225B2 (en) * | 2007-09-21 | 2013-03-06 | キヤノン株式会社 | Image forming apparatus |
| JP4995211B2 (en) * | 2008-09-29 | 2012-08-08 | キヤノン株式会社 | Electrophotographic image forming apparatus |
| JP5071492B2 (en) * | 2010-02-26 | 2012-11-14 | ブラザー工業株式会社 | Image forming apparatus |
| JP5862044B2 (en) * | 2011-04-22 | 2016-02-16 | ブラザー工業株式会社 | Developing unit, process unit, and image forming apparatus |
| JP6265748B2 (en) * | 2014-01-21 | 2018-01-24 | キヤノン株式会社 | Photosensitive cartridge, developing cartridge, process cartridge, and image forming apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827049A2 (en) * | 1996-08-29 | 1998-03-04 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus and electro- photographic image forming apparatus transmissions method |
| CN1428666A (en) * | 2001-09-13 | 2003-07-09 | 兄弟工业株式会社 | Imaging device and treating unit thereof |
| CN1174292C (en) * | 1999-02-26 | 2004-11-03 | 兄弟工业株式会社 | Imaging appts., light sensitie component box and developer case |
-
2006
- 2006-12-27 CN CN2006101725386A patent/CN1991623B/en active Active
-
2008
- 2008-07-01 JP JP2008172272A patent/JP4423573B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827049A2 (en) * | 1996-08-29 | 1998-03-04 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus and electro- photographic image forming apparatus transmissions method |
| CN1174292C (en) * | 1999-02-26 | 2004-11-03 | 兄弟工业株式会社 | Imaging appts., light sensitie component box and developer case |
| CN1428666A (en) * | 2001-09-13 | 2003-07-09 | 兄弟工业株式会社 | Imaging device and treating unit thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4423573B2 (en) | 2010-03-03 |
| CN1991623A (en) | 2007-07-04 |
| JP2008233940A (en) | 2008-10-02 |
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