CN101551632A - Imaging apparatus having cleaning member for cleaning permeation member of optical equipment - Google Patents

Imaging apparatus having cleaning member for cleaning permeation member of optical equipment Download PDF

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Publication number
CN101551632A
CN101551632A CNA2009101325391A CN200910132539A CN101551632A CN 101551632 A CN101551632 A CN 101551632A CN A2009101325391 A CNA2009101325391 A CN A2009101325391A CN 200910132539 A CN200910132539 A CN 200910132539A CN 101551632 A CN101551632 A CN 101551632A
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CN
China
Prior art keywords
cleaning
main body
cleaning member
cover glass
permeation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2009101325391A
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Chinese (zh)
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CN101551632B (en
Inventor
植田新一
西谷修治
鹿山直则
佐藤正树
川村浩
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Canon Inc
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Canon Inc
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Filing date
Publication date
Priority claimed from JP2008090202A external-priority patent/JP5038213B2/en
Priority claimed from JP2008090203A external-priority patent/JP5038214B2/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of CN101551632A publication Critical patent/CN101551632A/en
Application granted granted Critical
Publication of CN101551632B publication Critical patent/CN101551632B/en
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  • Laser Beam Printer (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Cleaning In Electrography (AREA)

Abstract

An imaging apparatus includes a box, having a light sensitive drum, and capable of being attached to a main body of the imaging apparatus and being dismounted from the main body; optical equipment, having a lid glass towards the light sensitive drum such that the light emitted by the light sensitive drum passes through the lid glass; a cleaning member, for cleaning the lid glass from a cleaning start position to a cleaning finish position; and a locking member, for locking the cleaning member without move. Before attaching the box, the locking member blocks the cleaning member from moving along a longitudinal direction of the lid glass. During a process of attaching the box, the box is joined with the locking member, the cleaning member is released such that the cleaning member may leave from the cleaning start position.

Description

Imaging device with cleaning member that the permeation member of cleaning in the optical device use
Technical field
The present invention relates to the imaging device such as duplicating machine, printer or facsimile recorder one class, more specifically, it relates to and has the imaging device that is located at the cleaning member of the permeation member in the optical device in order to cleaning.
Background technology
Electro-photographic image forming apparatus adopts toner as developer.Toner-particle and dust are deposited in the imaging device.If the optical device that is located in the imaging device is exposed to toner, dust etc., then may affect adversely.In order to stop toner and dust to enter the inside of this optical device, the inside of optical device is sealed.Imaging device has the opening that passes through for from the optical device emitted laser.For stoping toner and dust to enter the inside of optical device, this opening has the cover glass that laser can pass through.
If from development section fall and the swim toner on imaging device and the dust on imaging device of swimming attached on the cover glass and block the light path of exposure, then the density of printed images reduces or disappearance appears in image.For preventing toner and dust attached on the cover glass, user or maintenance personal enter imaging device main body inside and clean cover glass with soft cloth.Yet the aperture area with cover glass is little, and in addition, user or maintenance personal need clean the surface of cover glass and not damage it.
The Jap.P. spy opens No.2005-246901 and proposes a kind of removable cleaning structure attached to the toner on the cover glass, dust etc.Concrete, user or maintenance personal slide along cover glass and are located at cleaning member in the optical scanning device, thereby can remove attached to the toner on this cover glass, dust etc.
Open in the structure of No.2005-246901 user or the maintenance personal cleaning member that slides, thereby cleaning cover glass the Jap.P. spy.Therefore, user or maintenance personal need carry out the operation of mobile cleaning member.
Summary of the invention
The invention provides a kind of like this imaging device, wherein, before promptly beginning cleaning before the attached box, cleaning member remains in the fixed position, and is in the cleaning course in attached box process, and cleaning member can be operated reliably.Cover glass is cleaned in the attached action of cleaning member and box linkedly.
According to an aspect of of the present present invention, a kind of imaging device comprises: unit, optical device, cleaning member and Lock Part.The unit can attach to device main body and dismantle from device main body.Optical device is given the photosensitive-member irradiates light.This equipment comprises that light is via its permeation member that passes through.Cleaning member can move to the cleaning final position with the cleaning permeation member from the cleaning starting position.Cleaning member can move linkedly with the attached action of unit in main body.Lock Part stops cleaning member to move.In the time of in the unit is unkitted main body, Lock Part stops cleaning member to move apart the cleaning starting position.When the unit attached to main body, this unit engaged with Lock Part, and this Lock Part releasing makes this cleaning member can move apart the cleaning starting position to the locking of cleaning member.
With reference to the explanation of accompanying drawing to example embodiment, it is obvious that further feature of the present invention will become from following.
Description of drawings
Fig. 1 is the structural map according to the imaging device of first embodiment.
Fig. 2 is the structural map according to optical device, handle box and the cleaning member of first embodiment.
Fig. 3 A and 3B are the structural maps according to the cleaning member of first embodiment.
Fig. 4 A, 4B and 4C are the cut-open view of expression according to the cleaning course of the cleaning member of first embodiment.
Fig. 5 A and 5B are the cut-open view of expression according to the cleaning course of the cleaning member of first embodiment.
Fig. 6 A, 6B and 6C are the cut-open view of expression according to the cleaning course of the cleaning member of second embodiment.
Fig. 7 A and 7B are the cut-open view of expression according to the cleaning course of the cleaning member of second embodiment.
Fig. 8 A, 8B and 8C are the cut-open view of expression according to the cleaning course of the cleaning member of second embodiment.
Fig. 9 A and 9B represent according to the releasing that engages between the cleaning member of the 3rd embodiment and the handle box.
Figure 10 represents according to the releasing that engages between the cleaning member of the 3rd embodiment and the handle box.
Embodiment
Describe embodiments of the invention in detail hereinafter with reference to accompanying drawing.It should be noted that the size of the parts described in the embodiment, material, shape, relative configuration etc. do not mean that and limit the scope of the invention, unless specifically indicate.
Imaging device
The total structure of imaging device is briefly described.Fig. 1 is the structural map according to the imaging device of first embodiment.
As shown in Figure 1, have four handle boxes 7 (7a, 7b, 7c and 7d) of packing in it and constituting first to fourth image forming part respectively as the color laser printer 100 of an example of imaging device.First to fourth image forming part forms yellow, magenta, cyan and black image respectively, and has identical construction except the color of toner.Reference symbol a shown in Figure 1, b, c and d indicate respectively and yellow, magenta, cyan and black image formation portion corresponding components.In the following description, when parts do not need to distinguish color, will omit reference symbol a, b, c and d.
Each handle box 7 all comprises developing cell 4 and the cleaning unit 5 that mutually combines.
Developing cell 4 comprises developer roll 24, toner applicator roll 25 and toner container.
Cleaning unit 5 comprises as the photosensitive drums 1 of the photosensitive-member that can rotate along the direction (clockwise direction) of arrow among Fig. 1, as the charging roller 2 of charhing unit, as the cleaning doctor 8 and the waste-toner container of cleaning unit.Each handle box 7 all is can be attached with respect to the main body of color laser printer 100 along the rotation direction of photosensitive drums 1 and the detachable unit of pulling out.In other words, this unit is inserted into main body neutralization and pulls out from main body.
Around each photosensitive drums 1, along its rotation direction, the transfer surface and the cleaning doctor 8 of arranged in sequence charging roller 2, light path, developing cell 4, intermediate transfer belt unit 12 from optical device 3 emitted laser.
By charging roller 2 being contacted with the surface of photosensitive drums 1 and utilizing the power supply (not shown) to apply the charging bias voltage, the surface of this photosensitive drums 1 is by uniform charging.
Optical device 3 is located at handle box 7 belows, and it makes photosensitive drums 1 be exposed to picture signal and form electrostatic latent image on this photosensitive-member 1.
Photosensitive drums 1 charges to predetermined negative potential via charging roller 2, and forms electrostatic latent image via optical device 3 on each photosensitive drums 1 subsequently.Electrostatic latent image is via developing cell 4 discharged-area developments, and it is attached to it to have a toner of negative polarity.Thus, form yellow, magenta, cyan and black toner image.
In intermediate transfer belt unit 12, intermediate transfer belt 12e opens and is located on driven roller 12f and the idler roller 12g, and idler roller 12g is tensioning intermediate transfer belt 12e in the direction of arrow E. First transfer roll 12a, 12b, 12c and 12d are configured to relative with each photosensitive drums 1 and are positioned at the inboard of intermediate transfer belt 12e, and the bias voltage applying unit (not shown) is to first transfer roll 12a, 12b, and 12c and 12d apply transfer bias.
Each photosensitive drums is rotated along the direction of arrow, and intermediate transfer belt 12e rotates in the direction of arrow F, and positive bias is applied in to first transfer roll 12a to 12d.Thus, toner image is transferred on the intermediate transfer belt 12e in order for the first time from the toner image on the photosensitive drums 1a.Therefore, four colour toners images are sent to secondary transfer printing portion 15 with overlaying state.
Supply arrangement 13 comprises that donor rollers 9 and transfer roller are to 10.Donor rollers 9 is sent the sheet material S in the feed cassette 11 that is used to accommodate sheet material S.Transfer roller transmits the sheet material S that is transferred to 10.Feed cassette 11 is configured to and can pulls out perpendicular to the plane (from the front of device) of Fig. 1.The user is feed cassette 11 pulling off device main bodys, this feed cassette 11 and this feed cassette 11 attached in the apparatus main body to finish replenishing of sheet material of then sheet material S being packed into.
The sheet material S that is housed in the feed cassette 11 is pressed towards donor rollers 9, and separates (friction disc partition method) and transmission via separating pad 23 many ground.
The sheet material S that sends here from supply arrangement 13 is sent to secondary transfer printing portion 15 via alignment roller to 17.
In secondary transfer printing portion 15, apply positive bias by giving secondary transfer roller 16, four colour toners images on the intermediate transfer belt 12e by secondary transfer printing to the sheet material S that is sent here.Photographic fixing portion 14 as fixation unit applies heat and pressure for the image that is formed on the sheet material S, thereby fixes this image.
Be transmitted in the process of the N of fusing nip portion with photographic fixing band 14a at sheet material S, and utilized the heater heats sheet material S in this photographic fixing band 14a, this sheet material S goes up loose toner image and is heated and fixes.The sheet material S that image is fixed thereon is discharged to 120 via distributing roller and discharges on the pallet 121.
After the toner image transfer printing, the lip-deep toner that remains in photosensitive-member 1 utilizes cleaning doctor 8 to remove.The toner that is removed is recovered in the waste-toner container in the cleaning unit 5.
Secondary transfer printing utilizes transfer belt cleaning equipment 122 to remove to the toner that remains on the intermediate transfer belt 12e after sheet material S goes up.The toner that is removed is recovered in the used toner returnable (not shown) that is located at the device rear portion via used toner transfer path (not shown).In color laser printer 100, the recovery of the paper supply in feed cassette 11, the attached and dismounting of handle box 7 and printing sheets all can be carried out from the face side of device.Each handle box 7 can attach to main body and dismantle from main body along the rotation direction of each photosensitive drums 1.
Cleaning member 20
Fig. 2 is the structural map of handle box 7, optical device 3 and cleaning member 20.Fig. 3 A and 3B are the structural maps of cleaning member 20.Fig. 4 A, 4B and 4C represent cleaning course.
As shown in Figure 2, the main body of imaging device has the frame member 32 of the framework that forms this main body.Frame member 32 has the opening 30 of the light path that is used to form optical device 3 and near be located at this opening 30 boxes insert guiding piece 21.Insert rib 22 and form one with handle box 7.By to insert rib 22, this handle box 7 is positioned at along the precalculated position of the apparatus main body of the rotation direction of photosensitive drums 1 along the attached handle box 7 of mode that inserts guiding piece 21.When handle box 7 was positioned at apparatus main body, the flange (not shown) that is located on this handle box 7 was assembled in the hole (not shown) of apparatus main body.Under this state, insert rib 22 and do not contact with insertion guiding piece 21.
Cover glass 31 as permeation member is configured to cover opening 30.Whereby, stop by opening 30 foreign matter for example dust and toner enter optical device 3, and prevent that functional part in this optical device 3 is contaminated and cause defect image thus.Cover glass 31 sees through the light that sends from optical device 3 so that photosensitive drums 1 is exposed.Cover glass 31 is elongated.For seeing through the light towards photosensitive drums 1 emission, cover glass 31 is configured to make the rotation direction of this photosensitive drums 1 to correspond essentially to the vertical of elongate cover glass 31.
As Fig. 3 A, 3B, 4A, shown in 4B and the 4C, printer 100 has cleaning member 20, the surface of these cleaning member 20 wiping cover glasses 31 (cleaning face), thus clean this cover glass 31.Cleaning member 20 comprises cleaning foil 26, wiper member 27, substrate parts 28, Lock Part 40, as the locking pushing spring 41 of push part.Cleaning member 20 is by substrate guiding piece (guiding piece) 29 supportings towards cover glass 31.Cleaning member 20 can being connected with substrate guiding piece 29 along cover glass 31 with longitudinal sliding.Cleaning member 20 can be with handle box 7 attached linkedly along the longitudinal sliding motion of cover glass 31 in main body.
Cleaning foil 26 is connected with the lower surface of wiper member 27 with substrate parts 28.Lock Part 40 is connected with the upper surface of substrate parts 28 rotationally.Locking pushing spring 41 is located between Lock Part 40 and the substrate parts 28.Locking pushing spring 41 is located at the front end along handle box 7 attached directions of substrate parts 28.Towards locking direction (direction that keeps pawl 40a to engage with conjugate foramen 29a) urge lock parts 40, this rotating shaft is located at the centre along handle box 7 attached directions of substrate parts 28 to locking pushing spring 41 around the shaft.
Lock Part 40 have be positioned at substrate parts 28 along the following prominent maintenance pawl 40a of the rear end of handle box 7 attached directions and be positioned at the prominent engaging claw 40b that goes up along the front end place of handle box 7 attached directions of substrate parts 28.Be located at an end place of substrate guiding piece 29 with keeping pawl 40a engaging hole engaged 29a.
When handle box 7 is unkitted in the main body, the Lock Part 40 that is subjected to locking the pushing force of pushing spring 41 engages with the conjugate foramen 29a of substrate guiding piece 29, thereby the parts 20 that keep clean are positioned at and clean the starting position and stop this cleaning member 20 vertically moving with respect to substrate guiding piece 29 along cover glass 31.When handle box 7 was attached to main body, this handle box 7 engaged with Lock Part 40, and overcame the pushing force that locking pushes spring 41 and make maintenance pawl 40a be disengaged hole 29a.Thus, Lock Part 40 is removed the locking of cleaning member 20 and is made this cleaning member 20 can move apart the cleaning starting position.
Handle box 7 has downwards (on cleaning member 20 1 sides) outstanding cleaning member junction surface 7e and second junction surface 7f.Cleaning member junction surface 7e is located at the downstream of the second junction surface 7f along the attached direction of handle box 7, and than this second junction surface 7f downwards (on cleaning member 20 1 sides) outstanding.
When attached handle box 7, cleaning member junction surface 7e slides on inclined-plane 29b and the guiding piece of pushing substrate downwards 29, and the second junction surface 7f crosses engaging claw 40b and do not engage with this engaging claw 40b.Therefore, when attached handle box 7, cleaning member junction surface 7e engages with engaging claw 40b.On the other hand, when removing handle box 7, the second junction surface 7f engages with engaging claw 40b.
Cleaning foil 26 has flexible.When cleaning, the leading edge of cleaning foil 26 contacts with the surface of cover glass 31, and this cleaning foil 26 moves foreign matter.
Wiper member 27 is configured to make the part of this wiper member 27 to contact with cover glass 31 when cleaning, and wiping remains in the lip-deep foreign matter of this cover glass 31 after cleaning foil 26 moves foreign matter.
Shown in Fig. 3 A and 3B, the contact angle that forms between this cleaning foil 26 and the cover glass 31 when cleaning foil 26 contacts with cover glass 31 (moving direction during along cleaning member 20 cleanings is positioned at the angle on the downstream) is the obtuse angle, and it is set to 135 ° in the present embodiment.Thus, a large amount of toners and dust are moved, and can reduce from the cleaning foil 26 sliding toners that leak and the quantity of dust.If the contact angle that forms between cleaning foil 26 and the cover glass 31 is too big, then as the substituting of leading edge, the base of this cleaning foil 26 contact with cover glass 31, and toners and dust are slided leakage from this cleaning foil 26 in a large number.On the other hand, if the contact angle that forms between cleaning foil 26 and the cover glass 31 is too little, then these cleaning foil 26 upsets.Contact angle is set to 135 ° and can prevents when the bad cleaning of the too greatly or too hour above-mentioned cleaning foil 26 of the contact angles that form between cleaning foil and the cover glass and the upset of this cleaning foil 26.
The leading edge of cleaning foil 26 contacts with cover glass 31 with deflected.Wiper member 27 contacts with cover glass 31 to be urged with compressed state.In this embodiment, the polyester sheet of thick 100 μ m is as cleaning foil 26, and the polyurethane foam sheet of the polyester non-woven of thick 1.5mm welding thick 2mm, the about 100N of hardness thereon is as wiper member 27.In use, cleaning foil 26 deflection 1mm and wiper member 27 compression 1mm.
In when cleaning, cleaning member 20 moves along the direction of arrow among Fig. 3 A and the 3B, thus the leading edge of cleaning foil 26 make on the cover glass 31 foreign matter for example toner and dust move, and wiper member 27 is wiped the foreign matter that is not moved by cleaning foil 26.Cover glass 31 is elongated along the rotation direction of photosensitive drums 1, and cleaning member 20 vertically moving along this cover glass 31.The rotation direction that vertically corresponds essentially to photosensitive drums 1 of cover glass 31 is so that light is reliably by this cover glass 31 and shine on the photosensitive drums 1.In this structure, to compare along the structure that the Width of cover glass 31 moves with cleaning member 20, the contact area between cleaning member 20 and cover glass 31 surfaces is little.Therefore, be easy to keep cleaning member 20 and contact, can prevent the contact fault between this cleaning member 20 and the cover glass 31 with homogeneous between cover glass 31 surfaces.
The operation of cleaning member
Below cleaning course will be described.Fig. 4 A, 4B, 4C, 5A and 5B are the cut-open views of the cleaning course of expression cleaning member 20.
In Fig. 4 A, cleaning member 20 is connected with this substrate guiding piece 29 slidably, and is positioned at the preceding original position of cleaning (cleaning starting position) at these substrate guiding piece 29 1 end places.
In the original position, utilize locking pushing spring 41 to exert pressure deasil for Lock Part 40.Under this state, the maintenance pawl 40a of Lock Part 40 engages with the conjugate foramen 29a of substrate guiding piece 29, and the substrate parts 28 of the parts 20 that keep clean is positioned at the given position on the substrate guiding piece 29.Lock Part 40 stops cleaning member 20 to move apart the cleaning starting position.
Substrate guiding piece thrust piece 35 is located between cover glass 31 and the substrate guiding piece 29.Substrate guiding piece thrust piece 35 promotes substrate guiding piece 29 does not contact cover glass 31 to cleaning foil 26 and wiper member 27 height.
When handle box 7 attached to the main body of imaging device, the junction surface 7e of this handle box 7 contacted with near the inclined-plane 29b at substrate guiding piece 29 front end places (attachment openings).Thus, the pushing force that overcomes substrate guiding piece thrust piece 35 presses down substrate guiding piece 29.
Further handle box 7 attached junction surface 7e that will cause in the main body of imaging device is advanced and arrives the end face of Lock Part 40 along inclined-plane 29b, shown in Fig. 4 B.The pushing force that junction surface 7e overcomes locking pushing spring 41 rotates counterclockwise Lock Part 40, and engages with the engaging claw 40b of this Lock Part 40 when the maintenance pawl 40a of Lock Part 40 breaks away from the conjugate foramen 29a of substrate guiding piece 29.
The pushing force that junction surface 7e overcomes substrate guiding piece thrust piece 35 presses down substrate parts 28 and Lock Part 40.The surperficial 1mm of the leading edge contact cover glass 31 of cleaning foil 26 also prepares cleaning.
Shown in Fig. 4 C, attached further again handle box 7 will along cover glass 31 vertically move substrate parts 28, and cleaning foil 26 and wiper member 27 move to the cleaning final position in this cover glass 31 of cleaning.
Then, will illustrate by demounting process cartridge 7 and make cleaning member 20 return the process of original position (cleaning starting position).
Shown in Fig. 5 A, handle box 7 beginnings are returned along disassembly direction (reverse direction of attached direction (direction of insertion)).Thus, junction surface 7e moves on the end face of Lock Part 40 and leaves this Lock Part 40 along disassembly direction (pull-out direction), and cleaning foil 26 and wiper member 27 leave cover glass 31 via the pushing force of substrate guiding piece thrust piece 35.
Shown in Fig. 5 B, handle box 7 will make the second junction surface 7f of this handle box 7 engage with the engaging claw 40b of Lock Part 40 along being moved further of disassembly direction.Handle box 7 moves along disassembly direction, and the substrate parts 28 of cleaning member 20 returns the original position with Lock Part 40.
The maintenance pawl 40a that returns the Lock Part 40 in original position engages with the conjugate foramen 29a of substrate guiding piece 29, and this Lock Part 40 is maintained at the given position in the substrate guiding piece 29.
As mentioned above, according to present embodiment, cleaning member 20 is with the attached cover glass 31 that cleans linkedly of handle box 7.Therefore, can clean cover glass 31 up hill and dale and not need user or maintainer carefully to clean cover glass 31.According to present embodiment, cleaning member 20 remains in fixed position (original position) before the i.e. cleaning beginning before handle box 7 is attached.Therefore, prevent cleaning member 20 because handle box 7 is unkitted Product transport in the main body time or user's operation and unexpectedly moves apart the original position.If cleaning member 20 moves to half-way from the original position before cleaning beginning, then when attached handle box 7, begin to clean from this half-way, can not utilize the attached cover glass 31 that cleans up hill and dale of single of handle box 7.Yet, according to present embodiment, utilize the single of handle box 7 attached can along cover glass 31 vertically from the cleaning starting position to cleaning final position cleanliness of operation parts 20.Thus, cleaning member 20 can stably be operated, and can prevent that accident is for example damaged.
In the present embodiment, when carrying out cleaning, the junction surface 7e of handle box 7 and the second junction surface 7f directly engage with cleaning member 20.Yet handle box 7 can engage with cleaning member 20 under the intervenient state of the parts of main body, as long as this cleaning member 20 moves linkedly with the attached of handle box 7 and dismounting.For example, handle box 7 is mounted thereon and can engages with cleaning member 20 drawer-like unit attached with respect to main body and dismounting.
In the present embodiment, handle box 7 is as can be attached with respect to main body and an example of the unit of dismounting.Yet, the invention is not restricted to this.User any unit attached and dismounting under normal environment for use all is fit to.For example, above-mentioned drawer-like unit or sheet material box attached with respect to main body and that dismantle to place sheet material are fit to.Importantly cleaning member 20 can be with requiring user's operation attached and removable unit to move linkedly under normal environment for use.Thus, can clean cover glass 31 and need not special clean operation.
With reference to Fig. 6 A, 6B, 6C, 7A, 7B, 8A, 8B and 8C explanation are according to the device of second embodiment.The essential structure of the device of present embodiment is identical with first embodiment.Therefore, the repetitive description thereof will be omitted, and the peculiar structure of present embodiment is described.Identical reference number will be used in reference to and be shown in parts identical with first embodiment on the function.
In a second embodiment, be located at vertical end place (upstream of the cover glass 31 of the moving direction during along cleaning foil 26 cleanings) of this cover glass 31 with the jut 70 of an end butt of cover glass 31.The accumulation portion 33 that is used to build up the foreign matter that cleaning foil 26 removes from the surface of cover glass 31 is located at vertical other end of this cover glass 31 (downstream of the cover glass 31 of the moving direction during along cleaning foil 26 cleanings).
Accumulation portion 33 is provided in a side of the concavity portion in the outside, light path zone.Accumulation portion 33 is located at the below on the surface (cleaning face) of the top (upper surface of optical device 3 in) of the lower end of optical device 3 and cover glass 31.Foreign matter can be built up in a position and not disperse in device.In addition, can prevent to build up foreign matter in accumulation portion 33 owing to vibration or external impact that the imaging device main body produces are got back in the light path zone.
The operation of cleaning member
The cleaning course of cleaning member below will be described.Fig. 6 A, 6B, 6C, 7A and 7B are the cut-open views of the cleaning course of expression cleaning member 20.
Among Fig. 6 A, cleaning member 20 is positioned at the original position (cleaning starting position) before the cleaning.Jut 70 butts among Fig. 6 A on the right side on an end of the cover glass 31 of (on one side of cleaning starting position) and the shell that is located at optical device 3.The end face of jut 70 is higher than the surface (cleaning face) of cover glass 31.Step 71 is located between the surface of the end face of jut 70 and cover glass 31.When cleaning member 20 moved to the cleaning final position from cleaning the starting position, the cleaning foil 26 of cleaning member 20 contacted with the end face of jut 70 before the surface with cover glass 31 contacts with wiper member 27.
For mobile cleaning member 20 moves handle box 7 to Fig. 6 A with the surface of cleaning cover glass 31 along inserting guiding piece 21 from the original position, the left side among 6B and the 6C (along the rotation direction of photosensitive-member 1 and along cover glass 31 vertically).Thus, the junction surface 7e that is located on the handle box 7 contacts with the inclined-plane 29b at substrate guiding piece 29 front end places.Thus, the pushing force that overcomes substrate guiding piece thrust piece 35 presses down substrate guiding piece 29.
The junction surface 7e of handle box 7 with the attached of handle box 7 along inclined-plane 29b move, arrive the end face 29c of substrate guiding piece 29, move to from this substrate guiding piece 29 cleaning member 20 substrate parts 28 slipping plane 28b and press down this substrate parts 28.Shown in Fig. 6 B, the leading edge of cleaning foil 26 and wiper member 27 contact with the end face of jut 70 on being located at optical device 3.
The junction surface 7e of handle box 7 engages with the junction surface 28a of this substrate parts 28 when pressing down substrate parts 28.When the substrate parts 28 that utilizes handle box 7 pressurization along with the attached of this handle box 7 during along the vertically moving of cover glass 31, cleaning foil 26 and wiper member 27 move on the end face of jut 70.Then, cleaning foil 26 and wiper member 27 are fallen on the surface of this cover glass 31 from the end that the end face of jut 70 is crossed cover glass 31.Thus, when cleaning member 20 beginning clean operations, the leading edge of cleaning foil 26 can contact with the surface of cover glass 31 and not stumble on the end of this cover glass 31.Therefore, it is impaired owing to stumble on the end of cover glass 31 to prevent cleaning foil 26, and can prevent that the clean-up performance of this cleaning foil 26 from worsening.
Subsequently, shown in Fig. 6 C, when handle box 7 moves substrate parts 28 along the cleaning directions, cleaning foil 26 and wiper member 27 in the surface of cleaning cover glass 31 along equidirectional (along cover glass 31 vertically) move.As mentioned above, linkedly attached with handle box 7, cleaning member 20 moves and cleans the surface of this cover glass 31 on the surface of cover glass 31.
Shown in Fig. 7 A, after cleaning foil 26 and wiper member 27 were finished the other end that cleans the cover glass 31 on the left side (on cleaning final position one side) to Fig. 7 A, the foreign matter that is moved by this cleaning foil 26 dropped in the accumulation portion 33.The minute quantity foreign matter that utilizes wiper member 27 to wipe keeps being trapped on this wiper member 27.
When handle box 7 when main body is dismantled, shown in Fig. 7 B, this handle box 7 returns along disassembly direction (reverse direction of attached direction).The junction surface 7e of handle box 7 moves and leaves this slipping plane 28b along disassembly direction on the slipping plane 28b of substrate parts 28.Contact and the cleaning foil 26 of bending of joint 7e difference and compression scheduled volume (being 1mm in the present embodiment) and wiper member 27 lifts away from cover glass 31 via the pushing force of thrust piece 35 surface with the surface of cover glass 31.
Handle box 7 further moves along disassembly direction, and the second junction surface 7f that is located at these handle box 7 front ends thus engages with the junction surface 28a of substrate parts 28.With handle box 7 along the moving linkedly of disassembly direction, cleaning foil 26 and wiper member 27 and cover glass 31 surperficial, and substrate parts 28 returns the original position separated by a distancely along the vertically moving of this cover glass 31.Because cleaning foil 26 and wiper member 27 move with the surface of cover glass 31 with being separated by enough distances, so this cleaning foil 26 and wiper member 27 can not stumbled on the step 71 of jut 70.
As mentioned above, the same with first embodiment, cleaning member 20 is with the attached cover glass 31 that cleans linkedly of handle box 7.Therefore, can clean cover glass 31 up hill and dale and not need user or maintainer to carry out clean operation.
According to present embodiment, when handle box 7 attached in the main body, cleaning foil 26 and wiper member 27 moved on the end face of being located at the jut 70 on the optical device 3.Then, cleaning foil 26 and wiper member 27 are fallen on the surface of this cover glass 31 from the end that the end face of jut 70 is crossed cover glass 31.Thus, when cleaning member 20 beginning clean operations, the leading edge of cleaning foil 26 can contact with the surface of cover glass 31 and not stumble on the end of this cover glass 31.Therefore, it is impaired owing to stumble on the end of cover glass 31 to prevent cleaning foil 26, and can prevent that the clean-up performance of this cleaning foil 26 from worsening.Cleaning foil 26 and wiper member 27 can drop on reposefully on the surface of cover glass 31 and not stumble on the end of this cover glass 31.Thereby this brings sense of touch smoothly for when the attached handle box 7 of operator and mobile cleaning foil 26 and wiper member 27 this operator.
As Fig. 8 A, shown in 8B and the 8C, jut 70 is providing inclined-plane 72 with position that cleaning foil 26 contacts with wiper member 27, and this inclined-plane 72 tilts from the cleaning starting position to cleaning the direction that final position moves at cleaning member 20.In the present embodiment, inclined-plane 72 is inclined upward to the end face of jut 70.
As Fig. 8 A, shown in 8B and the 8C, on the side of the cleaning starting position of jut 70, have under the situation on inclined-plane 72, when when beginning cleaning, the leading edge of cleaning foil 26 and wiper member 27 at first shown in Fig. 8 B be located at optical device 3 on the inclined-plane 72 of jut 70 contact.When handle box 7 moves substrate parts 28 along the cleaning directions (with handle box 7 linkedly attached), cleaning foil 26 and wiper member 27 move on the inclined-plane 72 of jut 70, fall on the surface of cover glass 31 from this jut 70 then.As mentioned above, by providing inclined-plane 72 in the cleaning starting position of jut 70 side (upstream side of the moving direction during along cleaning foil 26 cleaning), cleaning foil 26 can contact with the surface of cover glass 31 more swimmingly with wiper member 27.Further improve the operating performance of the handle box 7 that the substrate parts 28 that makes cleaning member 20 when the cleaning beginning moves, and the imaging device with high usability can be provided.
Cover glass 31 can extend to the original position of cleaning foil 26 and wiper member 27.Yet, increase cost and the size of the size of cover glass with aggrandizement apparatus.Sensation when above-mentioned structure can improve the durability of cleaning member and clean-up performance and operating case and do not increase the size of cover glass 31.
With reference to Fig. 9 A, 9B and 10 explanations are according to the device of the 3rd embodiment.The essential structure of the device of present embodiment is identical with first embodiment.Therefore, the repetitive description thereof will be omitted, and the peculiar structure of present embodiment is described.Identical reference number will be used in reference to and be shown in parts identical with first embodiment on the function.
As Fig. 9 A, shown in the 9B and 10, in the 3rd embodiment, be located at vertical rear end (downstream end of the substrate guiding piece 49 of the moving direction during along cleaning foil 26 cleanings of substrate guiding piece 49 towards the latch piece 50 of image space pushing handle box 7, that is, along the rear end of the substrate guiding piece 49 of handle box 7 attached directions) near.Latch piece 50 has claw 50a and tapered portion 50b.Latch piece 50 is provided as and can rotates by near the axis the end, and this end is relative with the end that claw 50a is provided.
Claw 50a can press down substrate guiding piece 49.The second junction surface 7f is formed on the lower surface of handle box 7 and along the front end place of this handle box 7 of the attached direction of box.
With handle box 7 linkedly attached in main body, cleaning member 20 vertically moves to the cleaning final position from the cleaning starting position along cover glass 31.Attached along with handle box 7, junction surface 7e engages with the Lock Part 40 of cleaning member 20, and this cleaning member 20 longitudinally moves to the cleaning final position along cover glass 31 thus.
Shown in Fig. 9 A, the cleaning final position behind cleaning member 20 cleaning cover glasses 31 is further towards the tapered portion 50b that installs the attached handle box 7 butt latch pieces 50 in back.Handle box 7 is crossed tapered portion 50b when pressing down latch piece 50.
When latch piece 50 was pressed down shown in Fig. 9 B, claw 50a pressed down substrate guiding piece 49.Thus, the cleaning member 20 that is connected with substrate guiding piece 49 moves towards the direction of leaving handle box 7 (downwards).The Lock Part 40 that makes this cleaning member 20 that moves down of cleaning member 20 breaks away from handle box 7.
As shown in figure 10, after the Lock Part 40 that the claw 50a of latch piece 50 presses down substrate guiding piece 49 and cleaning member 20 broke away from handle boxes 7, handle box 7 was by attached further, and this handle box 7 is subjected to the pushing of latch piece 50 and moves up thus.The substrate guiding piece 49 that utilizes the claw 50a of latch piece 50 to press down returns initial position, and cleaning member 20 moves towards handle box 7 (making progress).Yet, because handle box 7 moved up, so when these handle box 7 arrival image spaces, have enough distances between the Lock Part 40 of this handle box 7 and cleaning member 20.
After arriving image space, handle box 7 is pushed to be positioned at image space towards installing the back and making progress by latch piece 50.
As mentioned above, the same with first and second embodiment according to present embodiment, cleaning member 20 is with the attached cover glass 31 that cleans linkedly of handle box 7.Therefore, can clean cover glass 31 up hill and dale and not need user or maintainer to carry out clean operation.
According to present embodiment, when handle box 7 placed image space, this handle box 7 can easily break away from cleaning member 20, and handle box 7 operating performance when attached improves.
In the present embodiment, cleaning member 20 is illustrated with the structure that is disengaged that engages between the handle box 7.Yet, engage the structure of not removed by the attached track of handle box 7 and also be fine by releasing fully, engagement amount minimizing and residue joint.
In the present embodiment, to latch piece 50 towards the mobile cleaning member 20 of the direction of leaving handle box 7 (downwards) and thus this cleaning member 20 be illustrated with the structure that is disengaged that engages between the handle box 7.Yet, the invention is not restricted to this.Importantly cleaning member 20 is towards moving with the vertical different direction of cover glass 31, removed swimmingly to make engaging between this cleaning member 20 and the handle box 7 in the loading process of handle box 7.
In the present embodiment, latch piece 50 is pressed down and the structure of exerting pressure for thus substrate guiding piece 49 is illustrated.Yet, the invention is not restricted to this.Optionally, latch piece 50 can exert pressure directly for cleaning member 20.Importantly be accompanied by the attached of handle box 7, utilize the motion of latch piece 50 to come mobile cleaning member 20.
Although describe the present invention with reference to example embodiment, it should be understood that to the invention is not restricted to disclosed example embodiment.The scope of following claims should be shown with the wideest explanation one and contains all distortion and equivalent configurations and function.

Claims (8)

1. an imaging device comprises:
The unit that can attach to device main body and dismantle from device main body;
Optical device is given the photosensitive-member irradiates light, and described equipment comprises that light is via its permeation member that passes through;
Cleaning member can move to the cleaning final position cleaning described permeation member from the cleaning starting position, described cleaning member can move linkedly with the action that described unit attaches to described main body; And
Lock Part stops described cleaning member to move,
Wherein, in the time of in described unit is not packed described main body into, described Lock Part stops described cleaning member to move apart described cleaning starting position, and
When described unit attached to described main body, described unit engaged with described Lock Part, and described cleaning member is disengaged locking and can moves apart described cleaning starting position.
2. imaging device according to claim 1 also comprises the guiding piece that can support described cleaning member movably, and wherein, the described cleaning member that is supported by described guiding piece moves and clean described permeation member with respect to described guiding piece.
3. imaging device according to claim 2, comprise that also the direction towards described Lock Part and described guide member engagement pushes the thrust piece of described Lock Part, wherein, when described unit attaches to described main body, described unit engages with described Lock Part and the pushing force that overcomes described thrust piece moves described Lock Part towards the direction that described Lock Part breaks away from described guiding piece, makes described cleaning member can move apart described cleaning starting position.
4. imaging device according to claim 2 is characterized in that described permeation member is elongated, and the direction that the described cleaning member that is supported by described guiding piece moves with respect to described guiding piece is the vertical of described permeation member.
5. imaging device according to claim 1 is characterized in that, described unit is to have photosensitive-member and can attach to described main body and from the box of described main body dismounting.
6. imaging device according to claim 4, it is characterized in that, described photosensitive-member can rotate, described unit can attach to described main body along the rotation direction of described photosensitive-member and dismantle from described main body, and the described rotation direction of described photosensitive-member corresponds essentially to the vertical of described permeation member.
7. an imaging device comprises:
The unit that can attach to device main body and dismantle from device main body;
Optical device is given the photosensitive-member irradiates light, and described equipment comprises that light is via its permeation member that passes through;
Cleaning member can move to the cleaning final position cleaning described permeation member from the cleaning starting position, described cleaning member can move linkedly with the action that described unit attaches to described main body; And
Jut, with an end butt ground contiguous described permeation member ground setting of described permeation member, described jut has the surperficial high end face than described permeation member.
8. an imaging device comprises:
Box has photosensitive-member and can attach to device main body and dismantle from device main body;
Optical device is given described photosensitive-member irradiates light, and described equipment comprises that light is via its elongated permeation member that passes through;
Cleaning member, can along described permeation member vertically move to the cleaning final position cleaning described permeation member from the cleaning starting position, described cleaning member can move linkedly with the action that described box attaches to described main body; And
Latch piece pushes described box towards image space,
Wherein, described box engages with described cleaning member along with it attaches in the described main body, described cleaning member longitudinally moves to described cleaning final position along described permeation member described, the described latch piece of described box butt, described latch piece pushes described box and along moving described cleaning member with the described vertically different direction of described permeation member, removing engaging between described cleaning member and the described box towards described image space.
CN2009101325391A 2008-03-31 2009-03-31 Imaging apparatus having cleaning member for cleaning permeation member of optical equipment Active CN101551632B (en)

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JP2008090199A JP5247205B2 (en) 2008-03-31 2008-03-31 Image forming apparatus
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JP2008-090199 2008-03-31
JP2008090202A JP5038213B2 (en) 2008-03-31 2008-03-31 Image forming apparatus
JP2008090203 2008-03-31
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