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Cartridge and image forming apparatus

A technology for imaging equipment and process cartridges, applied in the fields of process cartridges and imaging devices, can solve problems such as the inability to prevent toner leakage

Active Publication Date: 2006-04-05
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the position of the process cartridge is changed when the process cartridge is assembled to the apparatus main body and placed on a horizontal surface, for example, when the process cartridge is attached to the apparatus main body with the opening facing downward, the above structure cannot prevent discoloration. powder spill

Method used

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  • Cartridge and image forming apparatus
  • Cartridge and image forming apparatus
  • Cartridge and image forming apparatus

Examples

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Embodiment Construction

[0037] example

[0038] will refer to Figures 1 to 12 Some aspects of the invention are described.

[0039] figure 1 is a side sectional view of the overall structure of a laser printer 1 as an image forming apparatus according to aspects of the present invention. The laser printer 1 is a direct tandem color laser printer having four photosensitive drums 31 corresponding to black, cyan, magenta, and yellow, respectively. In the description below, figure 1 The right side in is called the front side.

[0040] The laser printer 1 includes a lower paper feed tray 3 inside a main body case 2 . A paper feed tray 3 is detachably attached to the main body case 2 from the front side. The paper feed tray 3 is configured to supply a stack of paper 4 for image formation. A platen (not shown) is provided at the bottom of the paper feed tray 3 and is configured to lift the leading end of the paper 4 . The pick-up roller 5 and the paper supply roller 6 arranged in series, and the pa...

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PUM

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Abstract

A toner receiving member, which is open upward, is provided at a position vertically below a lower end of a contact surface between a side seal member and a developing roller. The toner receiving member can receive and store toner which has leaked. In addition, when a developing cartridge is removed from a main body casing and then placed on a horizontal surface such as a desktop, a front wall, which serves as a bottom surface of the toner receiving member, faces upward. Toner collected in the toner receiving member may be prevented from leaking.

Description

[0001] Cross-references to related applications [0002] This application claims priority from Japanese Patent Application No. 2004-285162 filed September 29, 2004, the entire subject matter of which is incorporated herein by reference. technical field [0003] The present invention relates to a process cartridge and an image forming apparatus including the same. Background technique [0004] An electrophotographic image forming apparatus may be provided with a process cartridge including a developing device. The process cartridge is designed to be detachably attached to the main body of the image forming apparatus. The process cartridge includes a case storing toner as a developer and a developing roller rotatably fitted into an opening formed in the case. The developing roller is designed to form a visible image by transferring a thin layer of toner formed on the developing roller to an elect...

Claims

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Application Information

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IPC IPC(8): G03G15/06G03G15/00
CPCG03G15/0817G03G2221/1648
Inventor 福田纮也
Owner BROTHER KOGYO KK
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