Image forming device and image forming method

An imaging device and imaging technology, which are applied to equipment, electrographics, optics, etc. using electric charge patterns, can solve problems such as deformation of a cleaning blade 901, inability to completely scrape off toner, and reduced cleaning effect.

Active Publication Date: 2011-08-03
KONICA MINOLTA BUSINESS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] When such reverse bending occurs, the cleaning blade 901 may be deformed or partially broken, so that the toner cannot be completely scraped off, and thus the cleaning effect will be reduced.

Method used

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  • Image forming device and image forming method
  • Image forming device and image forming method
  • Image forming device and image forming method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0043] figure 1 The overall structure of the printer 1 in the first embodiment is shown. Such as figure 1 As shown, the printer 1 includes an image processing unit 10 , a feeding unit 20 , a fixing unit 30 , and a control unit 100 . Upon receiving an instruction to execute a print job from an external terminal device (not shown) through a network (in this example, a LAN) to which the printer 1 is connected, the printer 1 executes the print job according to the received instruction.

[0044] The image processing unit 10 includes image creation units 2Y, 2M, 2C, and 2K corresponding to yellow (Y), magenta (M), cyan (C), and black (K), respectively, a drum drive motor 9 , and an annular intermediate rotor. A printing belt 11 , a belt drive motor 15 , and a belt cleaning unit 19 .

[0045] The image creating unit 2Y includes a photosensitive drum 3 driven by a drum drive motor 9 along the figure 1Rotating in the direction indicated by the arrow A shown, the charging roller ...

no. 2 example

[0093] In the first embodiment, reverse rotation is controlled according to the magnitude of coverage. In a second embodiment, the reverse rotation will be controlled according to the internal temperature of the device. This is a difference from the first embodiment. In the following description of the second embodiment, description of what has already been explained in the first embodiment is omitted, and components common to both embodiments have the same reference numerals.

[0094] Figure 6 The contents of the reverse rotation information table 202 stored in the reverse rotation information storage unit 104 are shown. Figure 7 A specific example of the relationship between the impact resistance of the cleaning blade and the temperature is shown.

[0095] Such as Figure 6 As shown, the reverse rotation information table 202 shows the correspondence between the internal temperature of the device and the number of reverse rotations. Figure 6 The table shown indicates...

no. 3 example

[0104] The difference between this embodiment and the above-described embodiments is that the pressing force applied to the cleaning blade is variable.

[0105] Figure 9A and 9B The structure of the belt cleaning unit 301 in this embodiment is shown. Figure 9A shows the status of the cleaning blade and normal pressing force contact, while Figure 9B Shows the state of contact between the cleaning blade and the weak pressing force.

[0106] Such as Figure 9A and 9B As shown, the belt cleaning unit 301 includes a frame 311 , a cleaning blade 312 , a blade support member 313 , a tension spring 314 , a cam 315 and a cam driving motor 316 .

[0107] The frame 311 is secured to a base or the like of the device (not shown).

[0108] The cleaning blade 312 is attached to the blade supporting member 313 with its edge in contact with the surface of the intermediate transfer belt 11 .

[0109] The scraper support member 313 is supported so that it can Figure 9A and 9B In the...

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PUM

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Abstract

An image forming device including a cleaning member that is made of an elastic material and cleans the surface of the image carrier by contacting with the surface. The drive unit rotates the image carrier in a reverse direction while the cleaning member is contacting with the surface of the image carrier, before the image carrier is rotated in a positive direction for an image formation. The control unit controls the rotation of the image carrier in the reverse direction, in accordance with information indicating a size of a frictional force generated between the cleaning member and the imagecarrier being rotated.

Description

[0001] This application is based on application No. 2006-162715 filed in Japan, the contents of which are incorporated herein by reference. technical field [0002] The present invention relates to an image forming apparatus including a cleaning unit for cleaning the surface of an image carrier by contacting the surface, and an image forming method of the image forming apparatus. Background technique [0003] In recent years, tandem printers have become popular. In these tandem printers, a plurality of image creation units, photosensitive drums, and transfer units are arranged along the intermediate transfer belt, and the toner images formed by the image creation units are transferred to the intermediate transfer belt through multiple transfers. On the belt, the toner images of corresponding colors are all transferred from the intermediate transfer belt to the recording sheet at one time to obtain a full-color image. [0004] In such printers, a cleaner is used to remove re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/16G03G13/00G03G21/00G03G15/00
CPCG03G21/0011
Inventor 稻田保幸赤泽隆史
Owner KONICA MINOLTA BUSINESS TECH INC
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