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Locking mechanism and image forming apparatus

A technology for locking components and locking positions, which can be applied to devices for locking portable objects, image communication, and electrical recording technology using charge patterns, etc., and can solve problems such as increased cost and increased size of locking mechanisms

Active Publication Date: 2019-09-03
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The lock mechanism of Japanese Patent No. 4842866 is capable of reducing temperature rise and power consumption, but requires space for routing at least two solenoids, so that the size of the lock mechanism increases
In addition, the cost increases accordingly

Method used

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  • Locking mechanism and image forming apparatus
  • Locking mechanism and image forming apparatus
  • Locking mechanism and image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0036] (Overall Structure of Image Forming Apparatus)

[0037] The overall configuration of the image forming apparatus will be described. The image forming apparatus is an electrophotographic color laser printer, but is not limited thereto. The image forming apparatus may be, for example, a black and white laser printer.

[0038] figure 1 The illustrated color image forming apparatus includes four process cartridges 7a, 7b, 7c, and 7d detachably attached to the main body A of the image forming apparatus. The four process cartridges 7a, 7b, 7c, and 7d have the same structure, but accommodate toners of different colors, ie, yellow (Y), magenta (M), cyan (C), and black (Bk). Therefore, the process cartridges are differentiated in that the process cartridges form images of different colors. The process cartridges 7a, 7b, 7c and 7d are constituted by developing units 4a, 4b, 4c and 4d and toner units 5a, 5b, 5c and 5d. The developing units 4a, 4b, 4c, and 4d have photosensiti...

no. 2 example

[0106] This embodiment will describe an image forming apparatus employing a shielding plate having a configuration different from that of the first embodiment in terms of shielding the magnetic field from the holding solenoid described in the first embodiment. Components constructed in the same manner as the first embodiment are attached with the same reference numerals or the same member names (even if the reference numerals are different), and descriptions thereof will be omitted.

[0107] Figure 20 is a perspective view of the locking unit arranged in the device body. The locking unit is arranged in the apparatus main body frame 401 as in the first embodiment. In the present embodiment, the locking unit cover 403 covering the locking unit, which is omitted in the first embodiment, is also illustrated. Part of the locking lever 302 can be seen through the hole in the locking unit cover (although in Figure 20 , the locking lever is shown in the locked position for conven...

no. 3 example

[0114] An image forming apparatus having the locking mechanism according to the third embodiment will be described. Components constructed in the same manner as the first and second embodiments are attached with the same reference numerals or the same member names (even if the reference numerals are different), and descriptions thereof will be omitted.

[0115] (locking mechanism)

[0116] In the first and second embodiments, the configuration in which the locking unit as the locking mechanism is arranged on the front side of the frame of the main body of the image forming apparatus is described. In the present embodiment, the locking unit in the case of being arranged on the back side of the frame will be described.

[0117] like Figure 11 As shown, the locking unit as a locking mechanism includes a holding solenoid 301 , a locking lever 501 serving as a locking member, a locking lever shaft 502 , and a pin for connecting (engaging) the locking lever 501 with the holding s...

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PUM

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Abstract

The invention provides a locking mechanism and an image forming apparatus. In the locking mechanism, when the urging force of an urging member is larger than the magnetic force of a magnet in the non-excited state, a plunger can be held at a first position, and when the urging force of the urging member is smaller than the magnetic force of the magnet in the non-excited state, the plunger can be held at a second position.

Description

technical field [0001] The present invention relates to a locking mechanism and an image forming apparatus for locking an object. Background technique [0002] In image forming apparatuses such as laser printers, ink jet printers, copiers, and the like, consumables such as cartridges are usually replaced by users at predetermined timings. On the other hand, in some companies, it is desirable to be able to control the replacement of consumables such as cartridges in the environment of an office where the image forming apparatus is used. [0003] In order to control the replacement of consumables, a door that opens and closes to replace consumables is provided with a locking mechanism. During normal use, the door is locked and only unlocked when the user performs certain operations from the control panel to enable replacement of consumables (US Patent No. 6,768,877). After the apparatus main body recognizes that the user replaces the consumables with new consumables, the loc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G21/16
CPCG03G21/1633G03G21/1647G03G2221/1654G03G2221/169H04N1/00554E05B47/0006E05B73/0082E05B2047/0072E05B47/0004E05B47/0038E05B65/006
Inventor 椎名祐伟川口浩
Owner CANON KK
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