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Image forming device and processing cassette mounted on same removably

The technology of an imaging device and a processing box is applied in the direction of the electric recording process using the charge pattern, the equipment of the electric recording process using the charge pattern, and the electric recording technique, and can solve the problems of expensive, complicated and expensive process boxes

Inactive Publication Date: 2008-06-25
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this necessarily makes the cartridge more expensive
Moreover, since electrical contacts are provided for connection with the main body of the imaging device, the device becomes rather complex and expensive

Method used

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  • Image forming device and processing cassette mounted on same removably
  • Image forming device and processing cassette mounted on same removably
  • Image forming device and processing cassette mounted on same removably

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0037] First, the image forming apparatus and process cartridge of the present invention will be described. figure 1 is an external perspective view of an image forming apparatus (laser beam printer) according to an embodiment of the present invention; figure 2 is an external perspective view of the process cartridge 103, by opening figure 1 Shown is the front cover 102 of the main body 101 of the image forming apparatus, the process cartridge 103 can be attached to and detached from the main body 101 of the image forming apparatus.

[0038] The process cartridge 103 houses: a photosensitive drum as an image bearing member; charging means for uniformly charging the image bearing member; developing means for developing a latent image formed on the image bearing member; Cleaning device for any residues on the carrier.

[0039] Therefore, the process cartridge has: an image bearing member (photosensitive drum) which is rotatable about a central axis; and at least one of the fo...

no. 2 example

[0116] An imaging apparatus according to a second embodiment of the present invention will be described below. Fig. 11 shows a light guide according to a second embodiment of the present invention. Fig. 11 is a view showing a light guide 207 as a light guide which is an integral part of the present invention and which will be housed in a process cartridge which can be detachably housed in the image forming apparatus of the present invention superior. Except as described below, the structure of this second embodiment is the same as that of the first embodiment.

[0117] In this embodiment, in order to reflect the light emitted from the LED lamp 301 to the surface of the photosensitive drum 1, reflecting means is provided on the surface of the light guide. The reflective device includes a plurality of reflective surfaces 206 as reflective films, which are reflective portions formed of paint (or resin) of a high-reflectivity color (white, silver, etc.).

[0118] Preferably the...

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PUM

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Abstract

A process cartridge (10) which is detachably attachable to an image forming apparatus main body and which has a photosensitive drum (1) is provided with a light guide (201). This light guide (201) guides light from an LED lamp provided in the image forming apparatus main body to the surface of the photosensitive drum (1), thus forming a charge removing device for the photosensitive drum (1). Therefore, it is possible to provide an image forming apparatus and a process cartridge free from image problems, such as lateral stripes and drum positive ghost, at low cost.

Description

technical field [0001] The present invention relates to an image forming apparatus of electrophotographic type or electrostatic recording type, such as a copier or a laser beam printer; and also to a process cartridge used in the image forming apparatus. Background technique [0002] In image forming apparatuses of electrophotographic type and electrostatic type, a corona charger is generally employed as a charging device for an image bearing member including an electrophotographic photosensitive member, an electrostatic recording insulator, and the like. [0003] Recently, due to the advantages of contact charging devices, such as low ozone depletion and low power consumption characteristics, contact charging devices have come into use, in which a charging member to which a voltage is applied is brought into contact with an object to be charged such as an image bearing member, thereby Charge the object to be charged. In particular, in consideration of charging stability, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G21/18B41J2/44G02B6/00G03G15/00G03G15/04G03G21/08
CPCG03G21/1814G03G21/08G03G15/00
Inventor 横森干词河井太刀夫
Owner CANON KK
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