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image forming device

An image and pattern technology, applied in the field of image forming devices, can solve problems such as poor images, damage to the fixing unit or the main body of the image forming device, and paper jams

Active Publication Date: 2021-04-20
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the image forming apparatus is operated in a state in which the fixing unit is improperly (not ideally) installed by the user, sometimes due to loss of alignment between the main body side of the image forming apparatus and the fixing unit side, Inaccurate, resulting in poor images or paper jams, etc., and further, damage to the main body of the fixing unit or the image forming apparatus may sometimes occur

Method used

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Examples

Experimental program
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Embodiment Construction

[0024] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. figure 1 is a diagram schematically showing the configuration of the image forming apparatus 1 . In this image forming apparatus 1 , the paper P stored in the paper feed cassette 11 is conveyed by the pickup roller 12 and the conveyance roller 13A, and is conveyed to the image forming unit 20 including the photoreceptor drum 21 and the like. In the image forming unit 20 , an image pattern made of toner is formed on the photoreceptor drum 21 by static electricity, and the image pattern is transferred to the paper P when the paper P is transported to the upper side in the drawing. The configuration of the image forming unit 20 is the same as that of a known image forming apparatus. In addition, this image forming apparatus 1 performs monochrome output, therefore, in figure 1 In the example shown, a single image forming unit 20 (photoreceptor drum 21) corresp...

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Abstract

According to the present invention, it is possible to obtain an inexpensive image forming apparatus capable of judging whether or not the fixing unit is attached properly by reducing useless operations. The control unit drives the pressure release mechanism on the fixing unit side to the pressure release side ( S3 ). The control unit can then use the pressure release sensor to recognize whether or not the pressure release state is actually in place (S4). When it is confirmed that the pressure is released (S4: YES), then it is determined whether the temperature detected by the temperature sensor has increased due to the heater (S7). When it is determined that the temperature has risen (S7: YES), the control unit determines that the fixing unit (30) is properly attached (S8).

Description

technical field [0001] The present invention relates to an image forming apparatus using a detachable fixing unit that fixes toner by heating a sheet on which a toner pattern has been transferred. Background technique [0002] In an image forming apparatus such as a printer, an image pattern made of toner is first formed on a photoreceptor drum, and after the image pattern is transferred on a paper (medium), the image pattern is transferred to the paper by a fixing roller maintained at a high temperature. fixing. At this time, when the paper is conveyed while being sandwiched between the fixing roller and the pressure roller, the toner is fixed. There are also cases where deterioration occurs in the fuser roller, etc. or paper jams (jam occurs) in the fuser unit. Therefore, the fixing roller and the pressure roller are provided in the fixing unit, and the fixing unit is generally detachable from the main body of the image forming apparatus, and the detachment can be easily...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/00
CPCG03G15/55G03G15/205G03G21/1685G03G2221/1639G03G15/2035G03G21/1652G03G21/1871
Inventor 仓桥太朗
Owner KYOCERA DOCUMENT SOLUTIONS INC