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Fixing device and image forming device

A technology of a rotating body and a moving object, which is applied to the electric recording process applying the charge pattern, the equipment of the electric recording process applying the charge pattern, the electric recording technique, etc. and other problems to achieve the effect of reducing the number of ports, simplifying wiring, and preventing damage

Active Publication Date: 2016-04-20
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Also, it cannot be applied without a part that generates pulses according to the rotation of the motor (such as an encoder)
In addition, high-precision encoders are expensive and have the disadvantages of increased manufacturing costs.

Method used

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  • Fixing device and image forming device
  • Fixing device and image forming device
  • Fixing device and image forming device

Examples

Experimental program
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Embodiment Construction

[0027] Below, use Figure 1 to Figure 13 , an image forming apparatus including the fixing device 1 according to the present invention will be described. In the following description, the printer 100 will be described as an example of an image forming apparatus. However, each element described in each embodiment, such as a structure and arrangement|positioning, does not limit the scope of invention, but is an illustration example.

[0028] (Overview of Image Forming Apparatus)

[0029] First, use figure 1 The outline of the image forming apparatus according to the embodiment will be described. figure 1 is a schematic front sectional view showing a schematic structure of the printer 100 .

[0030] like figure 1 As shown, the printer 100 of this embodiment has an operation panel 2 attached to the side. Further, the printer 100 is internally provided with a paper feeding unit 3 a , a first transport unit 3 b , an image forming unit 4 , a fixing device 1 , a second transport...

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PUM

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Abstract

The invention provides a fixing device and an image forming apparatus. The fixing device comprises a fixing pressure adjustment mechanism which is driven by a motor and moves any one of a heating rotating member for heating paper and a pressing rotating member pressed on the heating rotating member in a pressure increasing direction and in a pressure decreasing direction between predetermined first and second positions so as to adjust a fixing pressure of the two rotating members; a control section including a control device which controls the drive of the motor by software control; a detecting member which detects that any one of the rotating members reaches the first position so as to inhibit output from being received by the control device; and a stop control circuit which stops the motor without software control when the detecting member detects that any one of the rotating members reaches the first position. According to the invention, the motor can be stopped safely even if the control device runs away.

Description

technical field [0001] The present invention relates to a fixing device for fixing toner, and an image forming apparatus including the fixing device. Background technique [0002] Many image forming apparatuses such as copiers, multifunction peripherals, printers, and FAX apparatuses are equipped with motors that rotate rotating bodies such as various rollers and photosensitive drums. Further, conventionally, the rotation control (operation control) of the motor is generally performed by software control of a control device (processor) such as a CPU or a microcomputer. However, if control elements such as the CPU run out of control, excess force will act on the motor, the part that transmits the driving force of the motor, and the part that operates according to the driving force of the motor, and failure may occur. Therefore, Japanese Patent Laid-Open Publication No. Hei 09-076595 describes a technique for preventing a carriage (a head moving portion of an inkjet recording...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20G03G15/00
Inventor 石堂纮平
Owner KYOCERA DOCUMENT SOLUTIONS INC
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