CN203414735U - Image forming device - Google Patents
Image forming device Download PDFInfo
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- CN203414735U CN203414735U CN201320124325.1U CN201320124325U CN203414735U CN 203414735 U CN203414735 U CN 203414735U CN 201320124325 U CN201320124325 U CN 201320124325U CN 203414735 U CN203414735 U CN 203414735U
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- belt
- guard block
- photosensitive drums
- image processing
- processing system
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- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
An image forming device comprises photosensitive drums (51), a belt (73) opposite to the photosensitive drums, transfer rollers (74) on the side, opposite to the side, where the photosensitive drums are arranged, of the belt, a sensor (200) for reading a developing agent image formed on the belt, and a protective component (100) clamped between the photosensitive drums and the belt, wherein the belt is provided with a read part (73A) through which the sensor (200) reads the developing agent image; each transfer roller is provided with a first diameter part (74A) of the protective component clamped between the photosensitive drums and the belt, and a second diameter part (74B) with a diameter smaller than that of the first diameter part and in a position overlapped with the read part in the thickness direction of the belt. Due to the adoption of the image forming device, a scar on the reading position of the sensor of the belt, caused by vibration during transportation can be avoided.
Description
Technical field
The utility model relates to a kind of image processing system with photosensitive drums and belt.
Background technology
Known a kind of image processing system, comprising: have a plurality of handle boxes such as photosensitive drums; The belt of configuration relative to each photosensitive drums; And each photosensitive drums between the transfer roll of clamping conveyer belts; And the sensor of the patch that forms by toner on conveying belt of optical detection.About this image processing system, the bale packing size when dwindling shipment and carry out shipment under the state that handle box is arranged on to main body, each photosensitive drums becomes with belt the state contacting.Because belt is clamped between photosensitive drums and transfer roll, so vibration photosensitive drums and belt during due to conveying can rub, may read position generation scar by the sensor on belt.When the sensor of belt reads while producing scar on position, can produce the patch being formed by toner mixed and disorderly, by sensor, cannot correctly read the problems such as patch.
Utility model content
Therefore, the purpose of this utility model is to provide a kind of image processing system, the generation that the sensor of the belt that vibration when this image processing system can suppress because of conveying causes reads the scar of position.
Image processing system of the present utility model, has: photosensitive drums; Belt, this belt is relative with described photosensitive drums; Transfer roll, the relatively described belt of this transfer roll and be configured in the opposition side of described photosensitive drums; Sensor, this sensor reads the developer picture being formed on described belt; And guard block, this guard block is configured to be clamped between described photosensitive drums and described belt, in described image processing system, described belt has and can by described sensor, be read the portion that is read of described developer picture, and described transfer roll has: and described photosensitive drums between clamp the 1st footpath portion of described guard block; And the diameter 2nd footpath portion less than the diameter of described the 1st footpath portion, described the 2nd footpath portion be located on the thickness direction of described belt and described in be read the overlapping position of portion.
In addition, in above-mentioned image processing system, described guard block is configured to, with described to be read the relative part of portion thinner than the part relative with described the 1st footpath portion.
In addition, in above-mentioned image processing system, described guard block is being formed with opening with the described relative part of portion that is read.
In addition, in above-mentioned image processing system, described guard block is not configured in and the described relative part of portion that is read.
In addition, in above-mentioned image processing system, while seeing from the thickness direction of described belt, the interface of described the 1st footpath portion and described the 2nd footpath portion is positioned at the partly overlapping position except becoming the part of thin structure with described guard block.
In addition, in above-mentioned image processing system, the interface of described the 1st footpath portion and described the 2nd footpath portion is positioned at the part relative with described guard block.
In addition, in above-mentioned image processing system, described in the portion of being read be configured in the both ends side on the Width of described belt, the central portion of the partial configuration relative with described the 1st footpath portion on the Width of described belt.
In addition, in above-mentioned image processing system, described guard block comprises Foamex.
In addition, in above-mentioned image processing system, described guard block comprises described Foamex and protection sheet material, and described protection sheet material is configured at least one party between described Foamex and described photosensitive drums or between described Foamex and described belt.
In addition, in above-mentioned image processing system, described Foamex is not configured in and the described relative part of portion that is read, and described protection sheet material is configured in and the described relative part of portion that is read.
In addition, in above-mentioned image processing system, have a plurality of described photosensitive drums, a plurality of photosensitive drums are configured to arrange along described belt, and described guard block is configured to whole photosensitive drums and contacts.
In addition, in above-mentioned image processing system, described belt is had by band subelement, and this band subelement comprises: a plurality of rollers that set up to tensioning described belt; And the framework that keeps described a plurality of rollers, described guard block is positioned described band subelement.
In addition, in above-mentioned image processing system, described photosensitive drums with have or not described guard block to be independently positioned at the position of regulation, described belt and described transfer roll are configured to and can on the thickness direction of described guard block, move.
Utility model effect:
According to above-mentioned image processing system, the generation that the sensor of the belt that the vibration in the time of can suppressing because of conveying causes reads the scar of position.
Accompanying drawing explanation
Fig. 1 means the sectional view of the color LED printer that embodiment of the present utility model is related.
Fig. 2 means the figure with subelement, and Fig. 2 (a) means the stereographic map of the state that guard block is not installed, and Fig. 2 (b) means the stereographic map of the state that guard block is installed.
Fig. 3 means the enlarged drawing of the state of the guard block quilt parts clamping around when guard block is installed.
Fig. 4 means the figure of surrounding's parts of guard block, and Fig. 4 (a) means at the enlarged drawing that the position relationship under the state of guard block is not installed, and Fig. 4 (b) means the enlarged drawing of the position relationship under the state that guard block is installed.
Fig. 5 means the figure of the guard block that the 1st variation is related, and Fig. 5 (a) means the stereographic map of the form consisting of an opening, and Fig. 5 (b) means the stereographic map of the form consisting of a plurality of openings.
Fig. 6 is the figure corresponding to Fig. 3 of the related guard block of the 2nd variation.
Embodiment
Below, the accompanying drawing with reference to suitable, is elaborated to an embodiment of the present utility model.In addition, in the following description, first the general structure of the color LED printer 1 of the example as image processing system is described, afterwards the related structure of characteristic of the present utility model is described.In addition, in the following description, about direction, being the user of usining when using color LED printer 1 describes as the direction of benchmark.That is, the left side of Fig. 1 as " front ", right side as " afterwards ", front side as " right side ", the inside side as " left side ".In addition, the above-below direction of Fig. 1 is as " up and down ".
: the schematic configuration of color LED printer:
As shown in Figure 1, color LED printer 1 has sheet feed section 20 to the interior supply paper of apparatus main body 10 P, forms the image forming part 30 of image and discharge the ADF portion 90 that image is paper P that is formed with on supplied with paper P.
Get back to Fig. 1; band subelement 70 is arranged between sheet feed section 20 and each handle box 50, comprises body side frame 76 and the guard block 100 of the pair of right and left shown in driven roller 71, driven voller 72, conveying belt 73 as an example of belt, transfer roll 74, handle portion 75, Fig. 2 with subelement 70.
Driven roller 71 and driven voller 72 across compartment of terrain configured in parallel, set up to tensioning the conveying belt 73 consisting of endless belt at fore-and-aft direction between it.The face in the outside of conveying belt 73 is relative with each photosensitive drums 51.In addition, transfer roll 74 is with respect to conveying belt 73 and a side contrary with photosensitive drums 51 disposes 4, applies transfer bias when transfer printing.Body side frame 76 rotatably keeps driven roller 71 and driven voller 72.In addition, about the concrete condition with subelement 70, illustrate in the back.
Below the retreading of driven roller 71, dispose the detecting sensor 200 as sensor one example.Detecting sensor 200 is optically read sensors that are formed on the toner image on conveying belt 73.Specifically, detecting sensor 200 is than the more sense of rotation downstream configuration relative to conveying belt 73 in downstream of the photosensitive drums 51 in the downstream of the sense of rotation of conveying belt 73, and the both ends side of this detecting sensor 200 on the Width of conveying belt 73 is provided with 2.By the information that detecting sensor 200 detects, be output to not shown control device.Control device is controlled as follows: based on this information, adjust the luminous moment of the LED of corresponding each photosensitive drums 51, revisal colour cast.
In the image forming part 30 forming like this, first,, exposed by each LED unit 40 by after similarly charged by each charger 52 in the surface of each photosensitive drums 51.Thus, the current potential that is exposed part declines, the electrostatic latent image in the upper formation of each photosensitive drums 51 based on view data.Then, by from developer roll, electrostatic latent image being supplied with to toner, and make load in photosensitive drums 51 hold toner.
Next, the paper P being supplied on conveying belt 73 passes through between each photosensitive drums 51 and each transfer roll 74, makes thus formed toner image in each photosensitive drums 51 be transferred on paper P.And, by paper P is passed through between warm-up mill 81 and backer roll 82, make to be thus transferred in the hot photographic fixing of toner image on paper P.
< is with the concrete structure > of subelement
Next, about the concrete structure with subelement 70, describe.As shown in Figure 2 (a) shows, conveying belt 73 has the field that can read the information of toner image by detecting sensor 200 and is read the 73A of portion.When image processing system carries out colour cast revisal control, on the 73A of the portion that is read on conveying belt 73, form the toner patch that colour cast revisal is used, this toner patch is read by detecting sensor 200.Toner patch is upwards formed with a plurality of in the week of conveying belt 73, and on the Width of conveying belt 73, is formed at locational 2 places near the end of image-region.That is, be read corresponding 2 detecting sensors 200 of the 73A of portion and have 2 places on the whole side face of both ends side on the Width of conveying belt 73.
The structure > of < guard block
As shown in Fig. 2 (b) and Fig. 3, guard block 100 consists of grip part 101, the 1st protection sheet material 102, the 2nd protection sheet material 103, Foamex 104, and this guard block 100 is configured to be clamped between photosensitive drums 51 and conveying belt 73.
The 1st protection sheet material 102, the 2nd protection sheet material 103 and Foamex 104 are supported in grip part 101, and in grip part, 101 both ends side is provided with 2 locating aperture 101A, and in grip part, 101 central portion is provided with upward outstanding spacer 101B.
The upper end of locating aperture 101A is fastened on the engagement pawl 75A of handle portion 75, and the upper end of spacer 101B is fastened on the engagement pawl 75B of handle portion 75.Thus, because guard block 100 is located by handle portion 75, so, can be with respect to correctly carrying out the location of guard block 100 with subelement 70.
Foamex 104 is the bolsters that make the pressure dispersion of photosensitive drums 51 and conveying belt 73, and it consists of elastic bodys such as polyethylene foameds.And Foamex 104 is configured in the scope of inner side on the Width of the 2nd protection sheet material 103.In addition, Foamex 104 is clamped between the 1st protection sheet material 102 and the 2nd protection sheet material 103.The 1st protection sheet material 102 for example consists of paper, and the 1st protection sheet material 102 is wider than the width of Foamex 104, and between photosensitive drums 51 and Foamex 104, is configured to be read the 73A of portion relative.The 2nd protection sheet material 103 for example consists of paper; the 2nd protection sheet material 103 is wider than the width of Foamex 104, and the central portion on the Width that is configured in conveying belt 73 between conveying belt 73 and Foamex 104 and be configured in and be read the 73A of portion with left and right and compare part in the inner part.
The part that this guard block 100 is configured in the face of being read the 73A of portion is only the 1st protection sheet material 102, and thin to the part of the 1st 74A of footpath portion described later in the face of being read the part specific surface of the 73A of portion.
The structure > of < transfer roll
As shown in Figure 3, transfer roll 74 has the 1st 74A of footpath portion and the 2nd 74B of footpath portion.In addition, transfer roll 74 is configured to and can moves up and down, by force application part 77 to the photosensitive drums 51 side application of forces.In addition, transfer roll 74 with the vertical vertical direction of the face of the conveying belt 73 with being contacted movably state be supported on body side frame 76.
The 1st 74A of footpath portion be and photosensitive drums 51 between clamp the part of guard block 100.The diameter of the 2nd 74B of footpath portion is less than the diameter of the 1st 74A of footpath portion.Specifically, the 2nd 74B of footpath portion is configured to from the two ends of the 1st 74A of footpath portion and diminishes to Width outside diameter, and the 2nd 74B of footpath portion is positioned at and is read the overlapping part of the 73A of portion on the thickness direction of conveying belt 73.In addition, the interface 74C of the 1st 74A of footpath portion and the 2nd 74B of footpath portion is positioned at the partly overlapping part that disposes Foamex 104 with guard block 100 on the thickness direction of conveying belt 73.
Action effect to the color LED printer 1 forming as described above describes.
As shown in Figure 4 (a), when using color LED printer 1, between photosensitive drums 51 and conveying belt 73, there is no configuration protection parts 100, transfer roll 74 is configured in the position with photosensitive drums 51 direct clamping conveyer belts 73.
At this, when color LED printer 1 is carried etc., when guard block 100 is configured between photosensitive drums 51 and conveying belt 73, as shown in Figure 4 (b), transfer roll 74 moves to the position of diagram solid line from the position of diagram double dot dash line part.; when guard block 100 is configured between photosensitive drums 51 and conveying belt 73; in the situation that guard block 100 comprises Foamex 104, Foamex 104 is compressed, conveying belt 73 and transfer roll 74 downwards to thickness direction move and mobile degree corresponding with the thickness of remaining Foamex 140.
Now, as shown in Figure 3, guard block 100 is by photosensitive drums 51 and conveying belt 73 clampings.At this, because the diameter of the 2nd 74B of footpath portion of transfer roll 74 is less than the diameter of the 1st 74A of footpath portion, so guard block 100 is mainly by the 1st 74A of footpath portion and photosensitive drums 51 clampings of transfer roll 74.That is, the part in the face of the 1st 74A of footpath portion of guard block 100 is pressed by photosensitive drums 51.On the other hand, due to conveying belt 73 in the face of the part of the 1st 74A of footpath portion is pressed against guard block 100, so the part in the face of the 2nd 74B of footpath portion of conveying belt 73 is not almost pressed against on guard block 100.
That is, the portion 73A of being read is positioned at while seeing from the thickness direction of conveying belt 73 and the 2nd overlapping position of the 74B of footpath portion, thereby, almost by photosensitive drums 51 or guard block 100, do not pressed.Therefore, the scar of the 73A of the portion that is read that the vibration in the time of can suppressing by conveying etc. causes, can make the precision that reads of detecting sensor 200 improve.
In addition; because guard block 100 is configured in the face of being read the part specific surface of the 73A of portion thin to the part of the 1st 74A of footpath portion; so, and compare with the guard block that uniform thickness forms, can more reduce from photosensitive drums 51 or guard block 100 to being read pressing of the 73A of portion.
In addition; because the interface 74C of the 1st 74A of footpath portion and the 2nd 74B of footpath portion is positioned at while seeing from the thickness direction of conveying belt 73 and the partly overlapping position except the part of the structure as thinner of guard block 100; thereby, in the part of facing at the interface 74C with the 1st 74A of footpath portion and the 2nd 74B of footpath portion of conveying belt 73, dispose reliably guard block 100.Therefore, and do not have the structure of configuration protection parts to compare in interface, the surface that can reduce conveying belt 73 because of photosensitive drums 51 produce larger scar may.
In addition, conveying belt 73 is configured to, and the portion 73A of being read is configured in to the both ends side on the Width of conveying belt 73, by partial configuration guard block 100 and that the 1st 74A of footpath portion faces near the central authorities of conveying belt 73.Therefore, during configuration protection parts 100, can be under more stable state fixedly photosensitive drums 51 and transfer roll 74.
Because guard block 100 is the structures that comprise Foamex 104, so, and the structure that does not comprise Foamex 104 compares, this guard block 100 easily absorbs the vibration while carrying, and can more improve the effect of protection.In addition; because the 1st protection sheet material 102 is configured between Foamex 104 and photosensitive drums 51; the 2nd protection sheet material 103 is configured between Foamex 104 and conveying belt 73; thereby guard block 100 can prevent from being contacted with Foamex 104 and the polluter that causes is attached to the situation on conveying belt 73 by photosensitive drums 51 or conveying belt 73 under hot environment.
In addition, because being configured to integratedly with whole photosensitive drums 51, guard block 100 contacts, so user becomes easy to the handling of guard block 100.
In addition, the upper end of locating aperture 101A is fastened on the engagement pawl 75A of handle portion 75, and the upper end of spacer 101B is fastened on the engagement pawl 75B of handle portion 75, thus, guard block 100 is positioned on band subelement 70.Therefore, can locate exactly guard block 100 with respect to band subelement 70.
In addition, about photosensitive drums 51, and have or not guard block 100 irrelevant, because photosensitive drums 51 is positioned on the position of regulation, so, even if be inserted with guard block 100 photosensitive drums 51, can not be lifted yet.Therefore, need to, with respect to photosensitive drums 51 and a side contrary with conveying belt 73 arranges space, can not realize the miniaturization of image processing system.
Above, although be illustrated about embodiment of the present utility model, the utility model is not subject to the restriction of above-mentioned embodiment.About concrete structure, the utility model can suitably change under the scope that does not depart from its purport.
The 1st variation:
In the above-described embodiment; guard block 100 is configured to towards the part specific surface that is read the 73A of portion thin to the part of the 1st footpath portion; but the utility model is not limited to this; as shown in Fig. 5 (a), also can be configured in the 73A of the portion that is read of conveying belt 73 and on the position of a plurality of photosensitive drums 51 of correspondence, be formed with respectively opening 105A.In addition, as shown in Fig. 5 (b), guard block 100A also can replace this opening 105A and form the opening 105B that makes the strip that each opening 105A becomes one.
The 2nd variation:
In addition, as shown in Figure 6, guard block 100B also can be configured to the part not being configured in towards being read the 73A of portion.That is, can be only on than the portion 73A of being read Width inner side in the inner part configuration protection parts 100B.When forming this structure, the interface 74C of the 1st 74A of footpath portion and the 2nd 74B of footpath portion also can be configured to the part being positioned at towards guard block 100B.
In the above-described embodiment, although the bolster disperseing as the pressure that makes photosensitive drums 51 and conveying belt 73 and use Foamex 104, the utility model is not limited to this, also can use other the parts such as rubber or felted terxture as bolster.
In the above-described embodiment, although guard block 100 is positioned on band subelement 70, the utility model is not limited to this, and guard block 100 also can be positioned on other parts of apparatus main body 10 grades.
In the above-described embodiment, as image processing system exemplified with belt the printer as conveying belt, mode from from photosensitive drums to the direct transfer printing toner image of paper, but the utility model is not limited to this, also can for belt as intermediate transfer belt, from photosensitive drums to intermediate transfer belt transfer printing toner image, the toner image on intermediate transfer belt is transferred to the printer of the mode on paper.
In the above-described embodiment, although be expressed as certain diameter in the 1st 74A figure of footpath portion of transfer roll 74, transfer roll 74 can be also the shape that diameter changes continuously to the 2nd 74B of footpath portion.
In the above-described embodiment, although as the image processing system of electronic photo mode, exemplified with color LED printer 1, be not limited to this, such as can be also duplicating machine, all-in-one multifunctional machine etc.
Claims (13)
1. an image processing system, is characterized in that, has:
Photosensitive drums;
Belt, this belt is relative with described photosensitive drums;
Transfer roll, the relatively described belt of this transfer roll and be configured in the opposition side of described photosensitive drums;
Sensor, this sensor reads the developer picture being formed on described belt; And
Guard block, this guard block is configured to be clamped between described photosensitive drums and described belt,
In described image processing system,
Described belt has can be read by described sensor the portion that is read of described developer picture,
Described transfer roll has: and described photosensitive drums between clamp the 1st footpath portion of described guard block; And the diameter 2nd footpath portion less than the diameter of described the 1st footpath portion,
Described the 2nd footpath portion be located on the thickness direction of described belt and described in be read the overlapping position of portion.
2. image processing system according to claim 1, is characterized in that,
Described guard block is configured to, with described to be read the relative part of portion thinner than the part relative with described the 1st footpath portion.
3. image processing system according to claim 1, is characterized in that,
Described guard block is being formed with opening with the described relative part of portion that is read.
4. image processing system according to claim 1, is characterized in that,
Described guard block is not configured in and the described relative part of portion that is read.
5. image processing system according to claim 2, is characterized in that,
While seeing from the thickness direction of described belt, the interface of described the 1st footpath portion and described the 2nd footpath portion is positioned at the partly overlapping position except becoming the part of thin structure with described guard block.
6. image processing system according to claim 4, is characterized in that,
The interface of described the 1st footpath portion and described the 2nd footpath portion is positioned at the part relative with described guard block.
7. image processing system according to claim 1, is characterized in that,
The described portion of being read is configured in the both ends side on the Width of described belt,
The central portion of the partial configuration relative with described the 1st footpath portion on the Width of described belt.
8. image processing system according to claim 1, is characterized in that,
Described guard block comprises Foamex.
9. image processing system according to claim 8, is characterized in that,
Described guard block comprises described Foamex and protection sheet material,
Described protection sheet material is configured at least one party between described Foamex and described photosensitive drums or between described Foamex and described belt.
10. image processing system according to claim 9, is characterized in that,
Described Foamex is not configured in and the described relative part of portion that is read,
Described protection sheet material is configured in and the described relative part of portion that is read.
11. image processing systems according to claim 1, is characterized in that,
There are a plurality of described photosensitive drums,
A plurality of photosensitive drums are configured to arrange along described belt,
Described guard block is configured to whole photosensitive drums and contacts.
12. image processing systems according to claim 1, is characterized in that,
Described belt is had by band subelement, and this band subelement comprises: a plurality of rollers that set up to tensioning described belt; And the framework that keeps described a plurality of rollers,
Described guard block is positioned described band subelement.
13. image processing systems according to claim 1, is characterized in that,
Described photosensitive drums is independently positioned at the position of regulation with having or not described guard block,
Described belt and described transfer roll are configured to and can on the thickness direction of described guard block, move.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012146761A JP6056217B2 (en) | 2012-06-29 | 2012-06-29 | Image forming apparatus |
| JP2012-146761 | 2012-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203414735U true CN203414735U (en) | 2014-01-29 |
Family
ID=49977614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320124325.1U Expired - Lifetime CN203414735U (en) | 2012-06-29 | 2013-03-18 | Image forming device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6056217B2 (en) |
| CN (1) | CN203414735U (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3609461B2 (en) * | 1994-10-07 | 2005-01-12 | 株式会社リコー | Packaging method for image forming apparatus |
| JPH10104898A (en) * | 1996-09-30 | 1998-04-24 | Ricoh Co Ltd | Carrying belt unit for image forming device |
| JP2004117510A (en) * | 2002-09-24 | 2004-04-15 | Canon Inc | Image forming apparatus |
| JP2006330481A (en) * | 2005-05-27 | 2006-12-07 | Canon Inc | Electrophotographic image forming apparatus |
| JP5120302B2 (en) * | 2009-03-16 | 2013-01-16 | 富士ゼロックス株式会社 | Image forming cartridge and image forming apparatus |
| JP4868015B2 (en) * | 2009-03-26 | 2012-02-01 | ブラザー工業株式会社 | Image forming apparatus, detachment prevention member, and detachment prevention structure |
-
2012
- 2012-06-29 JP JP2012146761A patent/JP6056217B2/en active Active
-
2013
- 2013-03-18 CN CN201320124325.1U patent/CN203414735U/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP6056217B2 (en) | 2017-01-11 |
| JP2014010299A (en) | 2014-01-20 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |
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| CX01 | Expiry of patent term |