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Cartridge and electrophotographic image forming apparatus

A technology of electrophotography and imaging equipment, which is applied in the field of electrophotography and imaging equipment, and can solve problems such as increased assembly difficulty, limited material selection, and increased man-hours

Active Publication Date: 2010-09-01
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in order to increase the insertion pressure, it is necessary to improve the dimensional accuracy of the through hole, and it is necessary to use a material that is not easily broken, so the selection of materials is limited
As far as bonding is concerned, assembly difficulty increases and man-hours increase

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0069]

[0070] figure 1 is a sectional view of the main assembly 1 and the process cartridge 2 of the electrophotographic image forming apparatus according to this embodiment. figure 2 is a sectional view of the process cartridge 2 according to this embodiment. The following will refer to figure 1 and figure 2 The general arrangement of the imaging device and the imaging process will be described.

[0071] In this image forming apparatus, a process cartridge (cartridge) 2 is detachably mountable to a main assembly 1 of an electrophotographic image forming apparatus. The electrophotographic image forming apparatus is an electrophotographic type laser printer. When the cartridge 2 is mounted on the main assembly 1 , an exposure device (laser scanning unit) 3 is provided on the upper portion of the cartridge 2 . A lower portion of the cassette 2 is provided with a sheet tray 4 for accommodating recording materials (sheets) P. As shown in FIG. Further, the main assembly...

no. 2 example

[0209] will now refer to Figure 44-46 The device according to the second embodiment will be described. The basic structure of the device of this embodiment is the same as that of the above-mentioned embodiments, therefore, redundant descriptions are omitted for the sake of simplicity. The same reference numerals as in the previous embodiment denote elements with corresponding functions.

[0210]

[0211] These embodiments differ from the first embodiment in the structure of the coupler assembly 156 . In the coupler assembly 156 of the present embodiment, the coupler 150 and the spherical member 160 are directly connected to each other by the connecting portion 150t provided in the coupler 150 and the connecting portion 160c provided for the spherical member 160 .

[0212] Figure 44 (a) is a perspective view showing the coupling assembly of the present embodiment, Figure 44 (b) is a sectional view showing the connection of the coupler 150 and the spherical member 160 ....

no. 3 example

[0226] will now refer to Figure 47-50 An apparatus according to a third embodiment will be described. The basic structure of the device of this embodiment is the same as that of the first embodiment, therefore, redundant descriptions are omitted for simplicity. The same reference numerals as in the previous embodiment denote elements with corresponding functions.

[0227]

[0228] Figure 47 (a) is a perspective view showing the coupler assembly, Figure 47 (b) is a sectional view showing the coupling assembly.

[0229] These embodiments differ from the first embodiment in the structure of the coupling assembly 156 and the flange 151 . Such as Figure 47 (a) and Figure 47As shown in (b), the coupling 150 of the present embodiment includes a substantially spherical portion 150R provided with a through hole 150r. The pin 155 is inserted into the through hole 150r, and is fixed by insertion pressure or the like between the through hole 150r and the pin 155, so that opp...

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PUM

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Abstract

A cartridge mountable and dismountable by moving in the direction crossing with an axial direction of the drive shaft of a main assembly of the apparatus, includes a rotatable member; a coupling including a coupling member, a first receiving portion, provided at one end portion of said coupling member; a rotational force transmission member engaged with the other end portion of said coupling member and having opposite ends projected out in a crossing wherein said coupling member is pivotable between a transmitting angular position for transmitting the rotational force from the driving shaft to said rotatable member and a mounting-and-dismounting angular position which is inclined relative to the axis of said rotatable member; a flange mounted to said rotatable member and rotatable about an axis, said flange including an opening accommodating said transmission member with a gap, a regulating portion, provided in said opening, for regulating movement of said transmission member in the crossing direction when said coupling takes the transmitting angular position, a second rotational force receiving portion for being abutted by said transmission member to receive the rotational force from said coupling, an opposing portion opposing to said second receiving portion, wherein in a state that said coupling is in the transmitting angular position and that one end of said transmission member contacts to said regulating portion to be confined in movement, when said coupling inclines relative to said flange such that a side in which a projection distance of said rotational force transmission member is relatively smaller moves away from said first receiving portion, an engagement depth between said side of said transmission member and said second receiving portion and an engagement depth between said side of said transmission member and said opposing portion are larger than zero. The invention also relates to an electrophotographic image forming apparatus.

Description

technical field [0001] The present invention relates to a cartridge capable of being attached and detached relative to the main assembly of an electrophotographic image forming apparatus by moving in a direction intersecting the axial direction of a drive shaft of the main assembly of the electrophotographic image forming apparatus, and to an electrophotographic image forming apparatus equipped with the cartridge. Background technique [0002] Electrophotographic image forming apparatuses include electrophotographic copiers and electrophotographic printers (laser beam printers and light emitting diode printers, etc.). [0003] For example, the cartridge is a process cartridge or a developing cartridge, which is detachably mounted to the main assembly of an electrophotographic image forming apparatus to facilitate an image forming process for forming an image on a recording material. [0004] Here, the process cartridge includes an integral electrophotographic photosensitive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G21/18
CPCG03G21/1864G03G21/186G03G21/1853
Inventor 原伸嘉森冈昌也
Owner CANON KK
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