CN1808306A - Image forming device and transfer material guide device used therein - Google Patents
Image forming device and transfer material guide device used therein Download PDFInfo
- Publication number
- CN1808306A CN1808306A CN 200510001748 CN200510001748A CN1808306A CN 1808306 A CN1808306 A CN 1808306A CN 200510001748 CN200510001748 CN 200510001748 CN 200510001748 A CN200510001748 A CN 200510001748A CN 1808306 A CN1808306 A CN 1808306A
- Authority
- CN
- China
- Prior art keywords
- transfer
- transfer materials
- image carrier
- materials
- guide groove
- 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
Links
Images
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
The invention relates to an image forming device which comprises: an image carrier for carrying images; a contacting transfer component for clamping the material for transmission in the transferring area between it and the image carrier, and implementing static electricity transfer on the images in the carrier; and a transfer material guiding device for guiding the transfer material to the transferring area between the image carrier and the contacting transfer component. The transfer material guiding device includes a pair of guiding slots on the upper side for guiding transfer material, making transfer material enter into the transfer area; the gap between the slot near to the transfer area and the image carrier is more than, or equal to 1.0mm and less than or equal to 2.5mm, when the angle of the tangent plane of the input position that the transfer material enters into the image carrier and the entering posture of the transfer material is larger than or equal to 45 degrees and smaller than or equal to 60 degrees.
Description
Technical field
The present invention relates to image processing systems such as duplicating machine, printer, particularly relate to the image processing system that uses the contact transfer member and the improvement of use therein transfer materials guiding device, above-mentioned contact transfer member transfer materials is clipped in and image carrier between transfer area.
Background technology
As existing this image processing system, for example can enumerate the electrofax mode, about this photographic means, now provide following device: with image carriers such as photoconductor drums transfer device is set opposite to each other, will will look like to be electrostatically transferred on the transfer materials at the toner that forms on the image carrier with this transfer device.
As this transfer device, though the such non-contact type device of corona tube is arranged, if from suppressing the viewpoint that ozone takes place, the such contact-type devices of transfer roll that transfer materials are clipped in the transfer area between it and the image carrier that utilize more.
In the mode of utilizing this contact-type device, require transfer materials and image carrier to be configured with connecting airtight conscientiously, and to keep the transfer printing performance of transfer roll well in the transfer area between image carrier and transfer roll.
For satisfying these requirements, now known have such device, and the upstream side of the transfer area of this device in the transfer materials transfer path is provided with the transfer materials guiding device, in order to transfer materials is guided to the transfer area of image carrier and transfer roll.Known have such transfer materials guiding device, it has makes transfer materials enter the guide groove of the paired structure at the transfer area upstream side position outward in the image carrier, utilize the intensity of transfer materials to push transfer materials to the image carrier side, make transfer materials be configured (for example with reference to JP-A-4-355482, JP-A-10-123848 and JP-A-2003-76154) in transfer area and image carrier with connecting airtight.
Yet, transfer materials guiding device for JP-A-4-355482, JP-A-10-123848 and JP-A-2003-76154 record, often worry between transfer area image carrier and transfer materials, to produce the gap, when such gap exists, can occur producing discharge because of transfer voltage (electric current), thus the technical task that generation hickie, toner splash.
When the use height rubs toner, owing to needing high transfer printing electric current or transfer voltage, so the use of this unfavorable condition ratio is hanged down when rubbing toner more remarkable.
The present invention proposes for solving above technical matters, it provides can guarantee image carrier and the connecting airtight property that contacts between the transfer member, and keeps in touch the image processing system and the use therein transfer materials guiding device of the transfer printing performance of transfer member well.
The inventor has analyzed above-mentioned technical task, has obtained following result.
The transfer materials guiding device of recording and narrating about JP-A-4-355482 for example, owing to enter 45 ° of posture angulation less thaies to the section at the entry site place of image carrier and transfer materials at transfer materials, so a little less than the thrust that image carrier promotes, transfer materials is insufficient easily to the connecting airtight property of image carrier with transfer materials.And because the gap between guide groove and the image carrier is big, particularly when using tough transfer materials, transfer materials floats from the surface of image carrier easily.
In addition, the transfer materials guiding device that JP-A-10-12384 records and narrates is provided with and the flexible shield of side's Elastic Contact of the guide groove of structure in pairs, utilize this shield to prevent pollution to the transfer materials transmission plane of guide groove, and by above-mentioned shield, the posture that enters of transfer materials is restricted to direction towards transfer area.Therefore, a little less than the thrust that image carrier promotes, transfer materials is insufficient easily to the connecting airtight property of image carrier with transfer materials.
In addition, though the transfer materials guiding device that JP-A-2003-76154 records and narrates guides to crush zone with the state that transfer materials is twisted on the image carrier with it, but clearly, 45 ° of the angle deficiencies that enters posture of transfer materials, therefore, a little less than the thrust that image carrier promotes, transfer materials is insufficient easily to the connecting airtight property of image carrier with transfer materials.
By above analysis result, the inventor obtains as drawing a conclusion: by increasing transfer materials is guaranteed the connecting airtight property of transfer materials to image carrier to the thrust that image carrier promotes, and, avoid tough transfer materials to float from image carrier by regulating end position near the guide groove of transfer area.
Summary of the invention
According to embodiments of the invention, image processing system possesses: possess: image carrier is used for load image; The contact transfer member is clipped in transfer area between it and the above-mentioned image carrier with transfer materials, and the image on the image carrier is carried out static printing; And the transfer materials guiding device, transfer materials is guided to image carrier and the transfer area of contact between the transfer member.Preferred transfer materials guiding device has and is used for guiding transfer materials, makes transfer materials enter the guide groove of the paired structure at the outer upstream side position of the transfer area of image carrier, enter the posture angulation at transfer materials to the section at the entry site place of image carrier and transfer materials and be less than or equal to 60 °, be less than or equal to 2.5mm more than or equal to 1.0mm near the guide groove and the gap between the image carrier of transfer area more than or equal to 45 °.
According to embodiments of the invention, transfer materials guiding device of the present invention is assembled in the image processing system that possesses as the lower part: image carrier is used for load image; And contact transfer member, transfer materials is clipped in transfer area between it and the image carrier, and the image on the image carrier is carried out static printing, this transfer materials guiding device guides to image carrier and the transfer area of contact between the transfer member with transfer materials, and the transfer materials guiding device has and is used for guiding transfer materials, makes transfer materials enter the guide groove of the paired structure at the outer upstream side position of the transfer area of image carrier.Preferably be less than or equal to 60 ° to the section at the entry site place of image carrier and the posture angulation that enters of transfer materials more than or equal to 45 ° at transfer materials, the guide groove and the gap between the image carrier of close transfer area are less than or equal to 2.5mm more than or equal to 1.0mm.
Description of drawings
Preferred implementation of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is the brief description figure that image processing system of the present invention and use therein transfer materials guiding device are shown.
Fig. 2 is the key diagram that the embodiment 1 of using image processing system of the present invention is shown.
Fig. 3 is the key diagram that its major part is shown.
Fig. 4 illustrates the state description figure that the lid of apparatus main body is opened in the present embodiment.
Fig. 5 is the key diagram that the mounting structure of the transfer printing unit that uses in the present embodiment is shown.
Fig. 6 is the key diagram that the detent mechanism of the transfer printing unit that uses in the present embodiment is shown.
Fig. 7 is the cross sectional illustration figure that the transfer printing unit that uses in the present embodiment is shown.
Fig. 8 is the further explanatory drawings that the transfer materials guiding device that uses in the present embodiment is shown.
Fig. 9 A to 9c is the sequential chart that the transfer printing control procedure of using in the present embodiment is shown.
Figure 10 illustrates among the embodiment 1 key diagram that has or not the picture quality defective to take place under each situation when changing as parameter with the gap between image carrier and the left side guide groove front end and image carrier section and transfer paper angulation.
Figure 11 illustrates among the embodiment 2 key diagram that has or not the picture quality defective to take place under each situation when changing as parameter with the distance from left side guide groove front end to the flexure member front end.
Embodiment
As shown in Figure 1, image processing system of the present invention possesses as the lower part: image carrier 1 is used for load image; Contact transfer member 2 is clipped in transfer area n between it and this image carrier 1 with transfer materials 3, and the image on the image carrier 1 is carried out static printing; And transfer materials guiding device 4, transfer materials 3 is guided to image carrier 1 and the transfer area n of contact between the transfer member 2, it is characterized in that: transfer materials guiding device 4 has and is used to guide transfer materials 3, make transfer materials 3 enter the guide groove 4a of the paired structure at the transfer area n upstream side position outward in the image carrier 1,4b, is θ when being located at transfer materials 3 to the section M at the entry site place of image carrier 1 and the posture h angulation (transfer materials entering angle) that enters of transfer materials, when the guide groove 4a of close transfer area n and the gap between the image carrier 1 are k, satisfied 45 °≤θ≤60 °, 1.0mm≤k≤2.5mm.
In such technique device, the application to as if possess the image processing system of contact transfer member 2 and transfer materials guiding device 4.
Here, though image carrier 1 is an object with the drum type parts mainly, also can be that draw frame is located at the band shape on the roller of trying to stop people from fighting each other.In addition, be not limited to the such picture of photoreceptor and form carrier, also comprise the intermediate transfer body.In addition, it is just passable with the transfer area n between the image carrier 1 as long as transfer materials 3 is clipped in for contact transfer member 2, though common and image carrier 1 disposes in contact, also can closely dispose mutually with image carrier 1.
In addition, for the image on the image carrier 1, can use iconographies such as toner, though iconographic charged characteristic is arbitrarily, but owing to use high friction images material than using the low high transfer voltage (electric current) of friction images material require, so the technical task described in the application (bad by the bad transfer printing that causes of the connecting airtight property of 3 pairs of image carriers 1 of transfer materials) takes place easily.Because it is bad that the application can improve the connecting airtight property of 3 pairs of image carriers 1 of transfer materials, so when using high friction images material, the application is effective especially.Here said high friction images material means the material that has the charged characteristic of 10～40 μ C/g under high humidity environment (for example 28 ℃/humidity of temperature 85%).In addition, so-called low friction images material means the material that has the charged characteristic of 3～10 μ C/g under high humidity environment.
In addition, because iconographic mean grain size is the minor diameter this point that is less than or equal to 8 μ m, and iconography is non-magnetic toner this point, gets up with high friction linking easily, so the application is effective especially.
In addition, as transfer materials guiding device 4,, must possess guide groove 4a, the 4b of paired structure in order to limit the direction of transfer of transfer materials 3.These guide grooves 4a, 4b connect airtight transfer materials 3 and image carrier 1 with one side, it is prerequisite that one side guides to transfer area n with it, so the upstream side position outside the transfer area n of the inlet point of transfer materials 3 in image carrier 1 does not contain the mode that is directed immediately into transfer area n.
At this moment,, preferably transmit transfer materials 3,, can make the stable posture that enters of transfer materials 3 according to the manner along guide groove 4a guiding near transfer area n as the guidance mode of the transfer materials 3 that causes by transfer materials guiding device 4.
In addition, as the structure example of guide groove 4a, 4b, though can use materials such as resin, metal to constitute suitable shape, the guide groove 4a near transfer area n also can be arranged to one with the support that contacts transfer member 2.According to the manner, the guide groove 4a of close transfer area n locatees easily, and this point is preferred.
In addition, in the present invention, as the layout important document of guide groove 4a, 4b, following 2 points of special requirement.
The first, as transfer materials entering angle θ, necessary satisfied 45 °≤θ≤60 °.Determining of this numerical range: when 45 ° of transfer materials entering angle θ less thaies, be difficult to guarantee connecting airtight property between image carrier 1 and the transfer materials 3, in addition, when above 60 °, can damage the conveying function of transfer materials 3 to transfer area n based on following reason.
The second, must satisfy 1.0mm≤k≤2.5mm near the guide groove 4a of transfer area n and the gap k between the image carrier 1.Determining of this numerical range: when gap k deficiency 1mm, can damage the conveying function of transfer materials 3, when surpassing 2.5mm, because floating of tough transfer materials 3 damages the connecting airtight property of image carrier 1 and transfer materials 3 easily based on following reason.
In addition, as the optimal way of transfer materials guiding device 4, can enumerate the mode that possesses the flexible pressed component 6 that front end contacts with transfer materials transmission plane near the guide groove 4a of transfer area n.According to the manner, can suppress the rear end perk of transfer materials 3 by means of flexible pressed component 6, prevent that the picture that the vibration by the transfer materials 3 due to the perk of rear end causes is disorderly.
In addition, as the layout of flexible pressed component 6, when establishing near the guide groove 4a front end of transfer area n when distance between the contact site front end that this guide groove contacts with flexible pressed component 6 is d, d preferably satisfies 3.5mm≤d≤5.5mm.Here, when not enough 3.5mm, worry that polluting the end that causes transfer materials 3 by the end of flexible pressed component 6 pollutes, on the other hand, when surpassing 5.5mm, worry to cause that by the rear end perk of transfer materials 3 picture is disorderly.
In addition, contact transfer member 2 is provided with transfer printing control device 7,7 pairs of this transfer printing control device put on the transfer bias of contact transfer member 2 and control.
As the preferred control mode of this transfer printing control device 7, the sequential of passing through that can enumerate at least with transfer materials 3 rearward end applies mode with the bias voltage of the little electric current of transfer bias same polarity or low-voltage accordingly.According to the manner, at least the transfer printing performance at transfer materials 3 rearward end places can be maintained to a certain degree, and weaken the adhesion of transfer materials 3 rearward end at least to image carrier 1, can effectively prevent the caused picture disorder of rear end perk of the transfer materials 3 when image carrier 1 is peeled off.
In addition, object of the present invention is not limited to image processing system, also comprises the transfer materials guiding device.
At this moment, as shown in Figure 1, transfer materials guiding device 4 of the present invention is assembled in the image processing system, and this image processing system possesses: image carrier 1 is used for load image; And contact transfer member 2, transfer materials 3 is clipped in transfer area n between it and this image carrier 1, and the image on the image carrier 1 is carried out static printing, above-mentioned transfer materials guiding device guides to image carrier 1 and the transfer area n of contact between the transfer member 2 with transfer materials 3, this transfer materials guiding device 4 preferably has guiding transfer materials 3, make transfer materials 3 enter the guide groove 4a of the paired structure at the transfer area n upstream side position outward in the image carrier 1,4b, and is θ when being located at transfer materials 3 to the section M at the entry site place of image carrier 1 and the posture h angulation that enters of transfer materials 3, when the guide groove 4a of close transfer area n and the gap between the image carrier 1 are k, satisfy: 45 °≤θ≤60 °, 1.0mm≤k≤2.5mm.
Embodiment shown in reference to the accompanying drawings describes the present invention in detail below.
[embodiment 1]
Fig. 2 shows the one-piece construction of the embodiment 1 of using image processing system of the present invention.
In the figure, image processing system has assembled the imaging engine 21 of for example electrofax mode in apparatus main body 20, be provided with the paper feeding tray 22 of transfer materials (transfer paper, OHP paper) below the imaging engine 21 in apparatus main body 20, and the top of apparatus main body 20 is constituted discharge tray 27, side in apparatus main body 20 (suitable left side in Fig. 2), edge roughly vertical direction is provided with transfer path 23, and transfer materials guiding imaging engine 21, discharge tray 27 that this transfer path 23 is used for sending from paper feeding tray 22 guide.
In the present embodiment, imaging engine 21 for example adopts the electrofax mode, and it possesses the photoconductor drum 31 as image carrier, make the charged Charging system of this photoconductor drum (being charged roller in this example) 32, on charged photoconductor drum 31, write the exposure devices such as laser scanning device 33 of electrostatic latent image (to call sub-image in the following text), sub-image on the photoconductor drum 31 is carried out the developing apparatus 34 that toner develops, but the video on the photoconductor drum 31 (toner picture) is transferred to the transfer device 35 on the transfer materials and removes the scavenge unit 36 of the residual toner on the photoconductor drum 31.
Here, as the toner that in developing apparatus 34, uses, use such toner, this toner use high humidity environment (for example 28 ℃/humidity of temperature 85%) down carried charge be the height of 10～40 μ C/g non magnetic toner that rubs, its mean grain size is less than or equal to 8 μ m.
In addition, as paper feeding tray 22, multistage (being three grades in this example) boxlike pallet 41～43 and two high capacity pallets 44,45 for example for example are set.In addition, each paper feeding tray 22 is provided for supplying with the feeder 46 of transfer materials, each paper feeding tray 22 and the transfer path 23 that roughly extends in vertical direction are connected through each communication path 47 earthings that link to each other.
In addition, at photoconductor drum 31 upstream sides of transfer path 23, be provided with and be used for stopping roller 24 that in addition, photoconductor drum 31 downstreams at transfer path 23 are provided with fixing device 25 what transmitted transfer materials location.
In addition, transfer path 23 branches into two after fixing device 25, and a branch road 51 extends to discharge tray 27 sides, and another branch road 52 extends to a sidewall of apparatus main body 20, is provided with the switching door 53 that usefulness is switched in the path between two branches 51,52.In addition, be provided with the straight inbound path 54 that straight line between two branch roads 51,52 is coupled together, be provided with exit roller 55,56 in the exit portion of each branch road 51,52.In addition, label 57 is the transfer rollers that are provided with on transfer path 23 and communication path 47 as required.
In addition, along on the sidewall of the transfer path 23 that extends towards vertical direction roughly of apparatus main body 20, be provided with can free folding lid 80 (with reference to Fig. 3), in the arranged outside of this lid 80 double-sided recording modes unit 60.In this double-sided recording modes unit 60, be provided be communicated with above-mentioned branch road 52 and with the echo-plex path 61 that roller 24 upstream sides are communicated with that stops of transfer path 23, in this echo-plex path 61 midway, branch's landform paper in a row path 62, the transfer roller 63 of right quantity is set on echo-plex path 61, and exit roller 64 is set in the exit portion in above-mentioned row's paper path 62.In addition, with the corresponding position of outlet in row's paper path 62 of double-sided recording modes unit 60, be provided with second discharge tray 65.
In addition, label 70 is the manual pallets by manual transmission transfer materials in Fig. 2, the 71st, and to the manual feeder of manual pallet 70 settings.
In the present embodiment, the lid 80 of apparatus main body 20 shown in Fig. 3 to 5, is a swing fulcrum 81 with the downside end especially, and the ground that can freely swing is supported.
In addition, transfer device 35 has the transfer printing unit 100 of guaranteeing transfer area between it and photoconductor drum 31, and this transfer printing unit 100 is maintained at through holding unit 120 and covers on 80.
In addition, in transfer path 23, be provided with transfer materials guiding device 140 at the upstream side of the transfer area of transfer printing unit 100.
Be described in detail below.In the present embodiment, shown in Fig. 6 and 7, transfer printing unit 100 has can accommodate the unit rack 102 that transfer roll 101, section are roughly the J font, on this unit rack 102, supports the two ends axial region of the transfer roll 101 that can rotate freely through bearing components 103,104.In addition, label 105 is the end caps that stop up unit rack 102 both ends.
In addition, unit rack 102 is provided with the outstanding locator protrusions 106 to foreign side for example with the integrated formation of resin materials such as ABS or polycarbonate in its bottom outside.
In addition, transfer roll 101 can be supported by elasticity through detent mechanism 110 with relatively moving.As this routine detent mechanism 110, use following device: near the two ends of the long side direction of unit rack 102, offer a pair of pilot hole (not shown), on the other hand, the guide protrusion 111 that difference can be chimeric with above-mentioned pilot hole is set on pair of bearings member 103,104, by above-mentioned guide protrusion 111 is engaged with above-mentioned pilot hole, and with on the above-mentioned guide protrusion 111 of spring 112 suits, the ground elasticity that can freely relatively move is supported above-mentioned bearing components 103,104.
In addition, as illustrated in Figures 5 and 6, in lid 80 inboards, be provided with the holding unit receiving portion 82 that to assemble holding unit 120, above-mentioned holding unit 120, is installed with the states that do not covered 80 restrictions by these holding unit receiving portion 82 elasticity supports through the spring 121 of specified quantity (for example 4).In addition, label 83 is the shelves that protect in the outstanding formation in the Width both sides of holding unit receiving portion 82, is used to limit the position of holding unit 120 on Width.
In addition, in above-mentioned holding unit 120, be provided with the transfer printing unit receiving portion 122 that to assemble transfer printing unit 100, on this transfer printing unit receiving portion 122, offered pilot hole (not shown), transfer printing unit 100 can be installed in the holding unit 120 under the locator protrusions 106 that makes unit rack 102 and state that the pilot hole of transfer printing unit receiving portion 122 engages with freely taking off.
In addition, shown in Fig. 3 and 8, transfer materials guiding device 140 has the guide groove 141,142 of the paired structure that transfer area n (crush zone that contacts that is equivalent to transfer roll 101 and the photoconductor drum 31) upstream side of the transfer printing unit 100 in transfer path 23 is provided with.This guide groove 141,142 is so long as guide the structure at the upstream side position outside the transfer area n that enters in the photoconductor drum 31 to get final product transfer materials, in this example, for the posture h that enters that makes transfer materials stablizes, transmit along 141 pairs of transfer materials channeling conducts of guide groove near transfer area n.In addition,, be regardless of metallic material or resin prepared material, can select arbitrarily as the constituent material of guide groove 141,142.
Particularly in the present embodiment, shown in Fig. 3 and 8, constitute one near the guide groove 141 of transfer area n and the unit rack 102 of transfer printing unit 100.Promptly, the transmission plane 143 that this guide groove 141 has end before the transfer area n from the unit rack 102 that roughly forms the J i section, extends along transfer materials transfer path 23, corresponding to the vergence direction of this transmission plane 143, the posture h that enters of transfer materials is limited.
In addition, at unit rack 102 connecting portion, be integrally formed to the side-prominent jut 144 of photoconductor drum 31 with guide groove 141.
In addition, in the present embodiment, the gap k that enters between posture h and photoconductor drum 31 and the jut 144 of transfer materials is selected with following mode.
Promptly, as shown in Figure 8, when being located at transfer materials 3, satisfy 45 °≤θ≤60 ° to the entering posture h (being equivalent to direction in this example) angulation (transfer materials entering angle) is for θ of the section M at the entry site place of photoconductor drum 31 and transfer materials near the transmission plane 143 of the guide groove 141 of transfer area n.Determining of this numerical range: when 45 ° of transfer materials entering angle θ less thaies, be difficult to keep connecting airtight property between photoconductor drum 31 and the transfer materials, on the other hand, when θ surpasses 60 °, can damage the conveying function of transfer materials to transfer area n based on following reason.
In addition, the gap k between photoconductor drum 31 and the jut 144 is set to such an extent that satisfy 1.0mm≤k≤2.5mm.Determining of this numerical range: when gap k deficiency 1.0mm, can damage the conveying function of transfer materials 3, when surpassing 2.5mm,, can damage the connecting airtight property of photoconductor drum 31 and transfer materials because tough transfer materials floats based on following reason.
Here, as the inlet point of transfer materials to photoconductor drum 31, though as long as just can to photoconductor drum 31 upstream side deflections with the linear position at the center of transfer roll 101 with respect to connecting photoconductor drum 31, but in order to guarantee the connecting airtight property of transfer materials at transfer area n, angle of deviation is preferably greater than or equals 10 °, in addition, as considering the conveying function of transfer materials, above-mentioned angle of deviation is preferably below 90 °.
In addition, in the present embodiment, be provided with flexible pressed component 145 in photoconductor drum 31 sides of guide groove 141,142.This flexible pressed component 145 for example is made of flexible diaphragms such as polyethylene terephthalates, with above-mentioned flexible membrane cantilevered be supported on the guide groove (being arranged in the guide groove on figure right side) 142 away from transfer area n one side, and with the free end Elastic Contact of above-mentioned flexible membrane be configured near the outlet of transfer materials transmission plane 143 (with reference to Fig. 7) of guide groove (being arranged in the guide groove in figure left side) 141 near transfer area n.
This flexible pressed component 145 has prevented the phenomenon that the transfer materials transmission plane 143 of guide groove 141,142 is polluted by the toner flying dust from developing apparatus 34 (with reference to Fig. 3), simultaneously by suppressing the rear end perk of transfer materials, prevented vibration of the transfer materials that the rear end perk by transfer materials causes etc., thereby suppressed in advance in the transfer printing of transfer area n bad (as disorder etc.).
Particularly in the present embodiment, when establishing near guide groove 141 front ends (specifically, jut 144 front ends) of transfer area n when distance between the contact site front end that this guide groove contacts with flexible pressed component 145 is d, d satisfies 3.5mm≤d≤5.5mm.Scope as this numerical value, institute is according to the reasons are as follows: when not enough 3.5mm, worry to be polluted by flexible pressed component 146 front ends the pollution of the transfer materials front end that causes, on the other hand, when surpassing 5.5mm, worry that the picture that the rear end perk by transfer materials causes is disorderly.
In addition, in the present embodiment, though the not shown transfer bias power supply of not shown control device control is arranged, transfer roll 101 is applied the bias voltage of regulation, its control mode can adopt variety of way.
For example shown in Fig. 8 and 9A, when transfer materials (for example transfer paper) passes through the transfer area n of transfer printing unit 100 (during paper feed), apply common transfer bias Vt, when transfer materials does not pass through transfer area n (during non-paper feed), for example apply remove bias voltage V0 (than the low voltage of transfer bias Vt or for the bias voltage of its reversed polarity), make the adhere to minimizing of toner to transfer roll 101.In addition, the mode that does not apply removing bias voltage V0 when non-paper feed is also arranged.
In addition, also can shown in Fig. 8 and 9B, when paper feed, apply common transfer bias Vt to the position except that transfer materials rearward end Pr, to the position corresponding with transfer materials rearward end Pr apply with transfer bias Vt reversed polarity peel off bias voltage Vt '.Because this is peeled off bias voltage Vt ' polarity opposite with photoconductor drum 31 is applied to transfer materials rearward end Pr, so transfer materials rearward end Pr peels off from photoconductor drum 31 easily, therefore the rear end perk of transfer materials in the time of can suppressing transfer materials effectively and peel off can prevent effectively that the picture that the rear end perk by transfer materials causes is disorderly.In addition,, also can not apply transfer bias Vt, the electrostatic adhesive force that causes with the transfer bias Vt that weakens by transfer materials rearward end Pr as applying the replacement scheme of peeling off bias voltage Vt '.In addition, if shown in the imaginary line among Fig. 9 B, with transfer materials leading section Pf accordingly or apply and peel off bias voltage Vt ', or do not apply transfer bias Vt, then the stripping performance of transfer materials is better.
In addition, also can be shown in Fig. 8 and 9C, when paper feed, the position except that transfer materials rearward end Pr is applied common transfer bias Vt, the position corresponding with transfer materials rearward end Pr applied the same polarity with transfer bias Vt, but be the low transfer bias Vt1 of low current or low-voltage.Here, so-called low current for example means electric current lower than common transfer printing electric current when constant current is controlled, and in addition, so-called low-voltage for example means voltage lower than common transfer bias when constant voltage is controlled.According to the manner, owing to transfer materials rearward end Pr weakens to the electrostatic adhesive force of photoconductor drum 31, so transfer materials is peeled off easily.In addition,, apply low transfer bias Vt1 accordingly, the image transfer printing performance of transfer materials leading section Pf is kept to a certain degree, and the stripping performance of transfer materials is good with transfer materials leading section Pf if shown in the imaginary line among Fig. 9 C.
Particularly in the present embodiment, as transfer roll 101, used the semiconduction member that forms the semiconduction elastic layer in the periphery of electric conductivity support (roller matrix) at least.In addition, this semiconduction member is the various parts that are used as image processing system, the primary transfer member of for example charged member, transfer member, intermediate transfer mode and secondary transfer printing member, remove member, remove electric conductivity or semiconduction member (to call the semiconduction member in the following text) such as electric components, its shape is not limited to the roller shape, also can be foliated lamellar.
Secondly, the semiconduction member of Shi Yonging is characterised in that by following rubber composition and forms in the present embodiment: this rubber composition is necessary composition with following (A)～(C) composition, and with respect to (A) composition and (B) total amount of composition be 100 mass parts, contain (C) composition in the scope of 10～80 mass parts.
(A) epichlorokydrin-allyl glycidyl ether co-polymer (epichlorohydrin-allyl glycidy ether)
(B) acrylonitrile-butadiene rubber (NBR:acrylonitrile-butadiene rubber);
(C) electronic conduction class conductive agent.
Like this, the semiconduction member that uses in the present embodiment must have the semiconduction elastomer layer that contains above-mentioned (A)～(C) composition.
As present embodiment, because the rubber composition of using the low NBR (B composition) of the epichlorokydrin that ionic conductivity is high-allyl glycidyl ether co-polymer (A composition) and ionic conductivity to be used in combination forms the semiconduction elastomer layer, so the electric conductivity of semiconduction elastomer layer is determined that by ionic conduction resistance reduces the dependence of voltage.In addition, owing in this rubber composition, mixed certain amount of electrons conduction conductive agent (C composition), thus the reduction of the resistance under the low temperature and low humidity, near the resistance under hot and humid.Consequently, no matter hot and humid following, still under low temperature and low humidity, resistance value does not all have big variation, is not subject to the influence of environment such as temperature, humidity, and promptly the dependence to environment reduces.In addition, owing to do not add low molecular ionic conductive agent, so the problem that can occur bluring not can prevent that consequently semiconduction component surface, photosensitive surface are contaminated.
In addition, the rubber constituent of using in the present embodiment is epichlorokydrin-allyl glycidyl ether co-polymer (A composition) and NBR (B composition).The intermiscibility height of epichlorokydrin-allyl glycidyl ether co-polymer (A composition) and NBR (B composition) is evenly distributed when mixing.Consequently form the little elastomeric material of resistance unevenness.The match ratio of above-mentioned epichlorokydrin-allyl glycidyl ether co-polymer (A composition) and NBR (B composition) preferably sets in mass ratio is the scope of (A)/(B)=80/20～20/80, more preferably in the scope of (A)/(B)=60/40～40/60.
Promptly, in above-mentioned match ratio (in the cooperation ratio, when above-mentioned epichlorokydrin-allyl glycidyl ether co-polymer (A composition) less than 20 (NBR (B composition) surpass 80), the tendency that discovery exists the initial resistivity value of the semiconduction member that obtains to increase, in addition, when above-mentioned epichlorokydrin-allyl glycidyl ether co-polymer (A composition) surpassed 80 (NBR (B composition) less thaies 20), ionic conductivity strengthened, and the environmental factor dependence of resistance increases easily.Therefore, must increase the addition of electronic conduction class conductive agent, thereby problem such as roller hardness increase often takes place.
In addition, when as present embodiment, when associating use epichlorokydrin-allyl glycidyl ether co-polymer (A composition) and NBR (B composition) conduct form the rubber composition of above-mentioned semiconduction elastomer layer, because NBR (B composition) can the low-viscosity polymeric bodyization, so can obtain when extrusion modling etc. that squeeze pressure reduces, the effect of extrusion surface modification.
As mentioned above, formation material as above-mentioned semiconduction elastomer layer, used following rubber composition: this rubber composition is necessary composition with epichlorokydrin-allyl glycidyl ether co-polymer (A composition), NBR (B composition) and electronic conductivity conductive agent (C composition), and with respect to as (A) composition of rubber constituent and (B) total amount of composition be 100 mass parts (following abbreviate as rightly " part "), above-mentioned (C) composition is set in 10～80 parts the scope.Above-mentioned (C) composition is preferably in 30～70 parts scope.When (C) composition is in this scope, can reduce the resistance variations amplitude that resulting semiconduction member is caused by environmental change and change in voltage etc. effectively.
Promptly, when 10 parts of the use level deficiencies of electronic conductivity conductive agent (C composition), there is tendency that can't see the electronic conduction effect that above-mentioned amplitude of fluctuation is exerted an influence, when surpassing 80 parts, the hardness that above-mentioned semiconduction roller often takes place increases, the problem that the squeeze pressure in the transfer printing portion increases.
As electronic conductivity conductive agent (C composition), can list metals such as carbon black, graphite, aluminium, nickel, aldary, perhaps metal oxide of alloy, tin oxide, zinc paste, potassium titanate, tin oxide-indium oxide or tin oxide-antimony oxide composite oxides and so on etc., but among them, preferred carbon black.
As the preferred carbon black of electronic conductivity conductive agent (C composition), have in having added its rubber composition in conjunction with catenulate character, the resistance value of rubber composition is different with this concatenate length.If this chain is in conjunction with length, the electric conductivity of semiconduction elastomer layer improves, and its resistance value reduces.On the other hand, in conjunction with weak point, the electric conductivity of semiconduction elastomer layer reduces as if chain, and its resistance value increases.Promptly, when adding the carbon black that forms the long-chain combination, though being used to obtain the carbon black addition of desirable resistance value can lacking when adding the carbon black that forms the short chain combination, because the variation of resistance value is big, so can not reduce the unevenness of the resistance value in the above-mentioned semiconduction elastomer layer.
In addition, as the electronic conductivity conductive agent (C composition) of present embodiment, preferably use two kinds of different carbon blacks of characteristic such as character of surface simultaneously.
Above-mentioned concatenate length depends on particle diameter, the surface activity of each particle of carbon black, as one of its index of expression, DBP (o-benzoic acid dibutyl ester) oil absorption that defines in ASTM D2414-6TT is arranged.This DBP oil absorption is represented by the number of the DBP amount (ml) that the 100g carbon black absorbs.This DBP oil absorption is high more, i.e. many more carbon blacks of oil absorption, and the chain of formation is in conjunction with long more.
In the time will only adding the high carbon black of this DBP oil absorption regulate the resistance value of elastic layer in rubber composition, the small increase and decrease of addition just makes resistance change very big.Therefore, as the addition and the distribution of not strict qualification carbon black, just can not pay the resistance value of regulation to elastic layer.On the other hand, in the time will only adding the low carbon black of DBP oil absorption and regulate the resistance value of elastic layer, the situation of the carbon black high with only adding the DBP oil absorption is compared, and carbon black roughly evenly distributes in rubber composition, and therefore the ratio of the resistance change that is caused by the addition increase and decrease diminishes.But for elastic layer being paid the resistance value of regulation, the situation of the carbon black high with only adding the DBP oil absorption is compared, and needs to add the carbon black of more amount.Consequently the carbon black cooperation ratio in the rubber composition increases, therefore with mixing of rubber constituents such as closed blender, mixers the time, because of viscosity high processing difficulties.In addition, also there is the big problem of elastic layer hardness that obtains.
Therefore, preferably use the so different two or more carbon blacks of DBP oil absorption of the low carbon black of high carbon black of DBP oil absorption and oil absorption simultaneously.
The carbon black that in the formation material of above-mentioned semiconduction elastic layer, adds, though be as long as its DBP oil absorption is variant just passable, when this difference is too small, with generation and interpolation identical result during a kind of carbon black.Therefore, as carbon black, preferably in the difference that has aspect the DBP oil absorption to a certain degree.Preferably make up with following carbon black: the oil absorption of the carbon black that the DBP oil absorption is high is more than or equal to 250ml/100g, and the oil absorption of the carbon black that oil absorption is low is less than or equal to 100ml/100g.
Particularly, as the high carbon black of oil absorption, for example can enumerate the HS-500 that oil absorption is 447ml/100g (rising sun カ one ボ Application (strain) system), oil absorption is that the KETJEN carbon black (ケ ッ チ ェ Application Block ラ ッ Network) (ラ ィ ォ Application ァ グ ゾ (strain) system) of 360ml/100g, granulated acetylene black (Electricity mood chemistry (strain) system), the oil absorption that oil absorption is 288ml/100g are Vulcan (バ Le カ Application) the XC-72 carbon blacks such as (キ ャ ボ ッ ト society systems) of 265ml/100g.In addition, as the low carbon black of oil absorption, for example can enumerate oil absorption is rising sun heat (the ァ サ ヒ サ one マ Le) FT (rising sun カ one ボ Application (strain) system) of 28ml/100g, rising sun heat (ァ サ ヒ サ one マ Le) the MT thermal blacks such as (rising sun カ one ボ Application (strain) systems) that oil absorption is 35ml/100g etc.
In above-mentioned semiconduction elastomer layer, except that above-mentioned (A)～(C) composition, crosslinking chemical, filler, gas-development agent etc. have also suitably been cooperated as required.But the composition as constituting semiconduction elastomer layer of the present invention does not comprise the ionic conductivity conductive agent.
For above-mentioned crosslinking chemical, have no particular limits, can enumerate well-known for example thiocarbamide, triazine, sulphur etc. now.As above-mentioned filler, can enumerate insulativity fillers such as silica, talcum, porcelain earth, titanium dioxide.They can separately or unite use.In addition,, for example can use any kind of of mineral-type gas-development agent, organic class gas-development agent, can use them separately, also can more than 2 kinds and use as above-mentioned gas-development agent.
In the present embodiment, can utilize above-mentioned each composition of making the semiconduction elastomer layer of semiconduction member such as mixers such as drum, V-mixer, Nuo Ta (Na ゥ one) mixer, closed blender, mixing roller, extruders.In addition, when making the semiconduction elastomer layer of present embodiment, there is no particular limitation for mixed method, the order by merging of each composition.As general method, can be with drum, V-mixer all the components to be mixed in advance, with extruder it being dissolved the method that mixes again, also can be the shape according to composition, adopts the dissolving more than 2 kinds in these compositions to dissolve the method for mixing residual components in the potpourri.
The semiconduction member of present embodiment is described in more detail below.
The electric conductivity support of the semiconduction member of present embodiment for example is made of metals such as SUS, SUM.If have the semiconduction member of roller shape structure, the electric conductivity support can be provided with in the axial mode that connects the semiconduction member, thereby has the function as the turning axle of semiconduction member.In addition, because external power source is connected with the electric conductivity support, it has been applied desirable bias voltage, so it also has with the function of external power source as the voltage bringing device of semiconduction member.
The semiconduction elastomer layer forms on the electric conductivity support, as mentioned above, the specific rubber composition of above-mentioned by comprising (A)～(C) composition constitutes, and according to the purposes of semiconduction member its combination, hardness, character of surface (surface smoothness, friction factor), electrical characteristics (resistance) etc. is adjusted.All conditions such as the electrical characteristics by suitably adjusting this semiconduction elastomer layer, character of surface from needless to say, can also be applied to various members (charged member, remove electric components etc.) in addition to transfer roll suitably.
In addition,, particularly, preferably roller hardness is adjusted in 10 °～70 ° scopes of A Sika (ァ カ ス) the C hardness that JISK-7312 puts down in writing as character of surface, for example, when using, preferably in 10 °～50 ° scope as transfer roll.In addition, when using, preferably in 20 °～70 ° scope as charged member.
As electrical characteristics, particularly, preferably the volume resistance value with the semiconduction elastomer layer is adjusted in the scope of 103～1010 Ω, is preferably in the scope of 106～1010 Ω when using as transfer roll.In addition, when using, preferably in the scope of 105～108 Ω as charged member.
In addition, the volume resistance value (R) of semiconduction elastomer layer is tried to achieve with the following method: roller shape semiconduction member is placed on sheet metal etc., the both ends of double electroconductive member respectively add the loading of 500g, double electroconductive member applies the voltage of 1.0kV (V), read the current value I (A) after 10 seconds, utilize following formula to calculate.
R＝V/I
In addition, as the thickness of semiconduction elastomer layer, generally be set at 2～12mm, preferred range is 3～5mm.
In addition, according to character of surface, the electrical characteristics of purposes adjustment semiconduction elastomer layer, its structure is unrestricted, can be made of individual layer, also can be made of multilayer.
The following describes the work of the image processing system of present embodiment.
Shown in Fig. 2 and 3, when generating image, as long as the not shown starting switch of operation, it is just passable that a series of imaging cycle is begun.
This imaging cycle is following process: the toner picture (image) that is formed regulation by imaging engine 21 on photoconductor drum 31, on the other hand, send transfer materials from paper feeding tray 22, via transfer path 23, again via stopping that roller 24, transfer materials guiding device 140 guide to transfer device 35 with it, toner on the photoconductor drum 31 is looked like to be transferred on the transfer materials, through fixing device 25 transfer materials is discharged to for example discharge tray 27 then.
In such imaging cycle, when the whereabouts of the transfer materials that is conceived to transfer area n (transfer area of transfer roll 101) guiding to transfer device 35, then as shown in Figure 8, transfer materials by stopping roller 24 is directed transmitting along the guide groove 141 of the close transfer area n of transfer materials guiding device 140, entering angle θ with regulation enters photoconductor drum 31, advances to transfer area n with the state that connects airtight with photoconductor drum 31 then.
At this moment, because the entering angle θ and be set within the limits prescribed (45 °≤θ≤60 °) of transfer materials, thus can not damage the conveying function of transfer materials, and the state that reliably connects airtight of the face of maintenance and photoconductor drum 31.
In addition, in the present embodiment, since near guide groove 141 front ends (end of jut 144) of transfer area n with predetermined gap k (1.0mm≤k≤2.5mm) closely dispose in this example with photoconductor drum 31, even so for example use tough transfer materials, also can keep the conveying function of transfer materials well, and can suppress transfer materials floating effectively with respect to photoconductor drum 31 curvature.
Therefore, keep very well to the connecting airtight property of photoconductor drum 31, thereby can avoid effectively partly floating the phenomenon that discharge takes place in the gap that at this moment produces at transfer area n transfer materials at transfer area n transfer materials.Therefore, can prevent the transfer printing that causes by discharge bad (hickie, toner splash) effectively at transfer area n.
In addition, in the present embodiment, because transfer materials guiding device 140 possesses flexible pressed component 145, so can prevent effectively that the transfer materials front end is polluted by the toner flying dust in the transfer materials transport process, in addition, because the rear end perk of transfer materials is suppressed by flexible pressed component 145, can prevent effectively that therefore the picture that the rear end perk by transfer materials causes is disorderly.
In addition, transfer device 35 can be assembled in the apparatus main body 20 in such a way in the present embodiment.
That is, when assembling transfer device 35, shown in Fig. 3 to 6, it is after 80s to open lid, by holding unit 120 transfer printing unit 100 is remained on and covers 80 inboard, and closing cap 80 just can then.
At this moment, after 80s at closing cap, though the transfer roll 101 of transfer printing unit 100 for example contact with photoconductor drum 31 because transfer roll 101 can relatively move by means of detent mechanism 110, so can be that benchmark positions with the position of photoconductor drum 31.
At this moment and since holding unit 120 relatively lid 80 supported that by elasticity and detent mechanism 110 elasticity support transfer roll 101, so transfer roll 101 disposes in contact with the pressure and the photoconductor drum 31 of appropriateness, need not to worry that the pressure with excessive disposes in contact.
In addition, in the present embodiment, because the guide groove 141 of the close transfer area n of transfer materials guiding device 140 constitutes one with the unit rack of transfer printing unit 100 102, so after transfer printing unit 100 navigated to the position of regulation with respect to photoconductor drum 31, the position of the guide groove 141 of close transfer area n is inevitable to be determined regularly.At this moment, if when transfer printing unit 100 and above-mentioned guide groove 141 are positioned respectively, because of the alignment error between transfer printing unit 100 and the guide groove 141, can cause positional precision to reduce slightly, situation contrasts therewith, in the present embodiment, owing to can eliminate the positional precision error that causes by above-mentioned alignment error, thereby can remain close to the positional precision of the guide groove 141 of transfer area n very well.
Therefore, the gap k between angle θ and photoconductor drum 31 and guide groove 141 front ends (jut 144 front ends) of entering that can the utmost point sets transfer materials exactly.
In addition, in the present embodiment, owing to can being installed in with freely taking out, transfer printing unit 100 covers on 80, so can change transfer printing unit 100 simply.
Particularly in the present embodiment, because guide groove 141 front ends (the jut 144 front ends) sliding contact of and transfer materials guiding device 140 many to the transfer materials of transfer area n guiding, so for example under situation, can worry that above-mentioned jut 144 is worn gradually with resin manufacture unit rack 102.But,, just can keep the transfer materials guide performance of transfer materials guiding device 140 constantly as one man, well with the replacing of transfer printing unit 100 as long as make the abrasion condition of this jut 144 consistent with the life-span of transfer printing unit 100.
[embodiment 1]
Present embodiment adopts the image processing system model (with reference to Fig. 8) of embodiment, the gap k that enters between posture angulation (transfer paper entering angle) θ and photoconductor drum (image carrier) and the left side guide groove front end with the section and the transfer materials (transfer paper) of photoconductor drum (image carrier) is that parameter changes respectively, to having or not picture quality defective (hickie, splash) and estimating with paper conveying function (having or not paperboard (Jam)).
In the present embodiment,
The size of photoconductor drum diameter: 30mm
The size of transfer roll diameter: 20mm
The inlet point of transfer paper: the position of center line with photoconductor drum and transfer roll is a benchmark, upstream the oblique 20 ° position of lateral deviation.
Figure 10 shows the result of embodiment 1.
In the figure, evaluation criterion is as follows.
Hickie, splash:
A: the picture quality that has obtained complete no problem
B: only when the image coverage is about 50% extreme case, take place
C: in most of medium tone image, take place
D: use paper owing to can not transmit, so can not detect
With paper conveying function (paperboard):
A: can advance on no problem ground
B: the transfer paper of tough part (for example ground paper/photo paper) can not advance
C: most of transfer paper can not advance
According to this figure as can be known: under the situation of 45 °≤θ≤60 ° and 1.0mm≤k≤2.5mm, can prevent the picture quality defective, and be necessary to keeping passing on performance well with paper.
In addition, when each model of the inlet point position of the size that changed the photoconductor drum diameter, transfer paper is carried out the performance evaluation identical with embodiment 1,, confirmed result same as described above for transfer paper entering angle θ and gap k.
[embodiment 2]
Present embodiment has adopted the image processing system model (Fig. 8) identical with embodiment 1, with near guide groove (left side guide groove) front end of transfer area to flexible pressed component be that parameter changes apart from d, hickie, the perk of transfer paper rear end, the pollution of transfer paper front end are estimated.
In the present embodiment,
The size of photoconductor drum diameter: 30mm
The size of transfer roll diameter: 20mm
The inlet point of transfer paper: for the position of center line with photoconductor drum and transfer roll is the benchmark oblique 20 ° position of lateral deviation upstream
Transfer paper entering angle θ: 40 °
Gap k:1.5mm
Figure 11 shows the result of embodiment 2.
In the figure, evaluation criterion is as follows.
Hickie:
A: the picture quality that has obtained complete no problem
B: only when the image coverage is about 50% extreme case, take place
C: in most of medium tone image, take place
The perk of transfer paper rear end:
A: can't hear the hitting sound that perk causes
C: can hear the hitting sound that perk causes
The transfer paper front end pollutes:
A: pollution-free, even pollution is arranged, also on imperceptible level
C: pollute on the level of awaring
According to this figure as can be known: under the situation of 3.5mm≤d≤5.5mm, be necessary to preventing that hickie, the perk of transfer paper rear end, transfer paper front end from polluting.
In addition, when each model of the inlet point position of the size that changed the photoconductor drum diameter, transfer paper is carried out the performance evaluation identical with embodiment 2, confirmed result same as described above apart from d for above-mentioned.
In addition, according to image processing system of the present invention, as the transfer materials guiding device, since determined transfer materials to image carrier enter posture and near the guide groove of transfer area and the optimum range in the gap between the image carrier, so can guarantee image carrier and the connecting airtight property that contacts between the transfer member, can keep in touch the transfer printing performance of transfer member well.
In addition,, can construct simply and can guarantee image carrier and the connecting airtight property that contacts between the transfer member, can keep in touch the image processing system of the transfer printing performance of transfer member well according to transfer materials guiding device of the present invention.
Claims (8)
1. image processing system,
Possess:
Image carrier is used for load image;
The contact transfer member is clipped in transfer area between it and the above-mentioned image carrier with transfer materials, and the image on the image carrier is carried out static printing; And
The transfer materials guiding device guides to image carrier and the transfer area of contact between the transfer member with transfer materials,
The transfer materials guiding device has and is used for guiding transfer materials, makes transfer materials enter the guide groove of the paired structure at the outer upstream side position of the transfer area of image carrier,
Enter the posture angulation at transfer materials to the section at the entry site place of image carrier and transfer materials and be less than or equal to 60 ° more than or equal to 45 °,
Guide groove and the gap between the image carrier near transfer area are less than or equal to 2.5mm more than or equal to 1.0mm.
2. image processing system as claimed in claim 1,
The transfer materials guiding device possesses the flexible pressed component that its front end contacts with the transfer materials transmission plane of the guide groove of close transfer area.
3. image processing system as claimed in claim 2,
Distance between the contact site front end that contacts with flexible pressed component near the guide groove front end of transfer area and this guide groove is less than or equal to 5.5mm more than or equal to 3.5mm.
4. image processing system as claimed in claim 1,
The transfer materials guiding device transmits transfer materials along the guide groove guiding near transfer area.
5. image processing system as claimed in claim 1,
Also possess the transfer printing control device that control puts on the transfer bias of contact transfer member,
Above-mentioned transfer printing control device applies and the little electric current of transfer bias same polarity or the bias voltage of low-voltage accordingly with the sequential of passing through of transfer materials rearward end at least.
6. image processing system as claimed in claim 1,
Image forms with high friction images material.
7. image processing system as claimed in claim 1,
Guide groove near transfer area is arranged to one with the support that contacts transfer member.
8. transfer materials guiding device, it is assembled in the image processing system that possesses as the lower part: image carrier is used for load image; And the contact transfer member, transfer materials being clipped in transfer area between it and the image carrier, and the image on the image carrier is carried out static printing, this transfer materials guiding device guides to transfer area between image carrier and the contact transfer member with transfer materials,
The transfer materials guiding device has and is used for guiding transfer materials, makes transfer materials enter the guide groove of the paired structure at the outer upstream side position of the transfer area of image carrier,
Be less than or equal to 60 ° to the section at the entry site place of image carrier and the posture angulation that enters of transfer materials more than or equal to 45 ° at transfer materials,
Guide groove and the gap between the image carrier near transfer area are less than or equal to 2.5mm more than or equal to 1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100017484A CN100412717C (en) | 2005-01-18 | 2005-01-18 | Image forming device and transfer material guide device used therein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100017484A CN100412717C (en) | 2005-01-18 | 2005-01-18 | Image forming device and transfer material guide device used therein |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1808306A true CN1808306A (en) | 2006-07-26 |
| CN100412717C CN100412717C (en) | 2008-08-20 |
Family
ID=36840245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100017484A Expired - Fee Related CN100412717C (en) | 2005-01-18 | 2005-01-18 | Image forming device and transfer material guide device used therein |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100412717C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700313A (en) * | 2014-12-15 | 2016-06-22 | 株式会社理光 | Image forming device |
| JP2017129642A (en) * | 2016-01-18 | 2017-07-27 | キヤノン株式会社 | Image forming apparatus |
| CN107200213A (en) * | 2017-07-18 | 2017-09-26 | 大英德创精工设备有限公司 | Stereotype transmission mechanism in lead pig granulation process |
| CN107885059A (en) * | 2016-09-30 | 2018-04-06 | 佳能株式会社 | Image processing system |
| US10228639B2 (en) | 2014-12-15 | 2019-03-12 | Ricoh Company, Ltd. | Image forming apparatus with a support to adjust a rotator and a guide |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE792643A (en) * | 1971-12-17 | 1973-03-30 | Ibm | ELECTROPHOTOGRAPHIC DEVELOPMENT DEVICE |
| US5276489A (en) * | 1989-09-16 | 1994-01-04 | Canon Kabushiki Kaisha | Image forming apparatus with transfer roller with guide means which adjusts to movements of the roller |
| JP3386235B2 (en) * | 1994-06-30 | 2003-03-17 | 株式会社リコー | Transfer paper guide device |
| JP3463716B2 (en) * | 1995-03-31 | 2003-11-05 | 株式会社リコー | Image forming device |
| JPH0999601A (en) * | 1995-10-04 | 1997-04-15 | Fuji Xerox Co Ltd | Image forming device |
| JP3073931B2 (en) * | 1996-07-10 | 2000-08-07 | キヤノン株式会社 | Image forming device |
| US6731890B1 (en) * | 2002-11-14 | 2004-05-04 | Nexpress Solutions Llc | Transfer of toner using a time-varying transfer station current |
| JP4227446B2 (en) * | 2003-03-27 | 2009-02-18 | キヤノン株式会社 | Image forming apparatus |
-
2005
- 2005-01-18 CN CNB2005100017484A patent/CN100412717C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700313A (en) * | 2014-12-15 | 2016-06-22 | 株式会社理光 | Image forming device |
| CN105700313B (en) * | 2014-12-15 | 2019-01-04 | 株式会社理光 | Image forming apparatus |
| US10228639B2 (en) | 2014-12-15 | 2019-03-12 | Ricoh Company, Ltd. | Image forming apparatus with a support to adjust a rotator and a guide |
| JP2017129642A (en) * | 2016-01-18 | 2017-07-27 | キヤノン株式会社 | Image forming apparatus |
| CN107885059A (en) * | 2016-09-30 | 2018-04-06 | 佳能株式会社 | Image processing system |
| CN107885059B (en) * | 2016-09-30 | 2021-03-23 | 佳能株式会社 | Image forming apparatus with a toner supply device |
| CN107200213A (en) * | 2017-07-18 | 2017-09-26 | 大英德创精工设备有限公司 | Stereotype transmission mechanism in lead pig granulation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100412717C (en) | 2008-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2763859Y (en) | Developing cartridge processing box, imaging device and slide seal component | |
| CN1310101C (en) | Image forming device and heating developing appts. | |
| CN1087843C (en) | Contact charging member, process for producing same and electrophotographic apparatus using same | |
| CN101063845A (en) | Rubber member and developing roller composed of rubber member | |
| CN1119708C (en) | Fixing device | |
| CN1229199A (en) | Image forming device, colour image forming device and transfer tape assemble | |
| CN1162756C (en) | Photographic fixing element fixing assemblings and its formation apparatus | |
| CN1017752B (en) | Charging device | |
| CN1912773A (en) | Semiconductive roller | |
| CN101038467A (en) | Image forming apparatus | |
| CN101055455A (en) | Semiconductor rubber member and developing roller composed of semiconductor rubber member | |
| CN1126009C (en) | Image-forming device and method of manufacturing dielectric sheet | |
| CN1658085A (en) | Developing device and printing device | |
| CN1752864A (en) | Electrophotographic endless belt, process for producing electrophotographic endless belt, and electrophotographic apparatus | |
| CN1122192C (en) | Image forming apparatus comprising contact type charging member | |
| CN1808306A (en) | Image forming device and transfer material guide device used therein | |
| CN101046647A (en) | Image forming apparatus and developer cartridge | |
| CN1497361A (en) | Live component, image forming device using the live cornponent and imaging processing box | |
| CN1885194A (en) | Method for forming image and image forming apparatus | |
| EP2028558A1 (en) | Conductuve member, and process cartridge and image forming apparatus including the conductive member | |
| CN1573602A (en) | Developing apparatus | |
| CN1655288A (en) | Semi-conductive rubber part | |
| JP5369405B2 (en) | Image forming method, process cartridge, and image forming apparatus | |
| CN1743970A (en) | Charging member, process cartridge, and electrophotographic apparatus | |
| CN100346238C (en) | Developing outfit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20180118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |