Unlock instant, AI-driven research and patent intelligence for your innovation.

Image Forming Apparatus

An image and image-carrying technology, which is applied in the fields of electrical recording technology using charge graphics, equipment for electrical recording technology using charge graphics, and electrical recording techniques.

Inactive Publication Date: 2018-02-09
CANON KK
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, due to such adhesion of the toner, there have been cases where a streaky defective image is produced when the printer outputs a full-color image

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image Forming Apparatus
  • Image Forming Apparatus
  • Image Forming Apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0069] will first follow Figure 10 The flow chart in is used to describe the control process of the first embodiment. In response to inputting a print job to the image forming apparatus 1, the CPU 101 starts rotating the black photosensitive drum 1d and the intermediate transfer belt 7 in step S101, and determines whether an image to be output is a color image or a monochrome image in step S102.

[0070] monochrome mode

[0071] When a monochrome image is to be output (ie, Yes in step S102), the monochrome mode is selected, and the formation of a toner image in the black image forming unit Pd starts in step S103. At this time, the color primary transfer rollers 5a, 5b, and 5c are located at the separated positions, and the color photosensitive drums 1a, 1b, and 1c stop their rotation. In the monochrome mode, the CPU 101 continues the print job in step S111 while monitoring whether the temperature inside the device (ie, in-device temperature T) detected by the temperature an...

no. 2 example

[0088] next will follow Figure 12 The flow chart in is used to describe the control process of the second embodiment. The present embodiment differs from the first embodiment in that the continuous operation time τ of the image forming section 10 is employed instead of the number of continuous printing sheets.

[0089] In response to inputting a print job to the image forming apparatus 1, the CPU 101 starts rotating the black photosensitive drum 1d and the intermediate transfer belt 7 in step S201, and determines whether an image to be output is a color image or a monochrome image in step S202.

[0090] monochrome mode

[0091] In a case where a monochrome image is to be output (ie, Yes in step S202), the CPU 101 selects the monochrome mode, and starts forming a toner image in the black image forming unit Pd in ​​step S203. At this time, the color primary transfer rollers 5a, 5b, and 5c are located at the separated positions, and the color photosensitive drums 1a, 1b, and 1...

no. 3 example

[0100] next will follow Figure 13 The flow chart in is used to describe the control process of the third embodiment. This embodiment differs from the first and second embodiments in that when a predetermined condition is satisfied within the duration of the previous print job in the monochrome mode, before executing the subsequent print job in the color mode, A process for avoiding toner adhesion, ie, step S325, is inserted.

[0101] In response to inputting a print job to the image forming apparatus 1, the CPU 101 starts rotating the black photosensitive drum 1d and the intermediate transfer belt 7 in step S301, and determines whether an image to be output is a color image or a monochrome image in step S302.

[0102] monochrome mode

[0103] In a case where a monochrome image is to be output (ie, Yes in step S302), the CPU 101 selects the monochrome mode, and starts forming a toner image in the black image forming unit Pd in ​​step S303. At this time, the color primary tr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present disclosure provides an image forming apparatus arranged to be able to reduce sticking of toner on an image bearing member in a configuration in which a part of image bearing members can beseparated from an intermediate transfer member. A control portion of the image forming apparatus is configured to execute a first mode to form an image on a recording medium with the first and secondimage bearing members and a second mode to form an image on a recording medium with the first image bearing member while the second image bearing member being separate from the intermediate transfermember. The control portion execute a rotation process of rotating the second image bearing member temporarily in a duration of the second mode in a case where a detection result of a temperature exceeds a predetermined temperature in the duration of the second mode.

Description

technical field [0001] The present invention relates to an electrophotographic image forming apparatus for forming an image on a recording medium. Background technique [0002] There is known a so-called intermediate transfer type electrophotographic image forming apparatus arranged in tandem. In such an image forming apparatus, a plurality of photoconductors corresponding to toner colors are provided, and the toner images formed on the respective photoconductors are primarily transferred onto an intermediate transfer member and transferred from The intermediate transfer member is secondarily transferred to a recording medium to form an image on the recording medium. [0003] Japanese Patent Laid-Open No. 2003-043770 discloses a printer configured to bring each photoconductor into contact with an intermediate transfer belt in a mode of forming a full-color image, and to bring color conductors into contact with an intermediate transfer belt in a mode of forming a black monoc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/01G03G15/16
CPCG03G15/01G03G15/0131G03G15/16G03G2215/0141G03G2215/0129G03G2215/0119G03G15/0136G03G15/0189G03G2215/00772G03G15/5054G03G21/0005
Inventor 东峰準
Owner CANON KK