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Image forming apparatus

An image and waveform technology, applied in printing devices, image communication, inking devices, etc., can solve problems such as countermeasures that do not give abnormal sounds

Active Publication Date: 2020-02-11
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in the latter case, no countermeasures against abnormal noise at the time of commutation are given

Method used

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Examples

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Embodiment Construction

[0017] Hereinafter, an image forming apparatus according to an embodiment of the present invention will be described with reference to the drawings.

[0018] First, refer to figure 1 The overall configuration of the color printer 1 as an image forming apparatus will be described. figure 1 It is a schematic diagram showing the outline of a color printer. In the description below, the figure 1 The near side of the paper is the front side (front side) of the color printer 1, and the left-right direction is based on the direction in which the color printer 1 is viewed from the front side. Fr and Rr in each figure represent the front side and the rear side of the color printer 1, respectively.

[0019] The device main body 3 of the color printer 1 is provided with: a sheet feeding cassette 5 for storing sheets; a sheet feeding device 7 for sending out sheets from the sheet feeding cassette 5; and an image forming unit 9 for forming sheets on the sent out sheets. A full-color to...

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PUM

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Abstract

An image forming apparatus is provided. The apparatus includes a discharge rollers pair, a sheet pressing member and a discharge tray. The discharge rollers pair allows sheets to be discharged througha discharging port or to be reversed in direction. The sheet pressing member presses the upper surface of a discharged sheet. The discharged sheet is loaded by the discharge tray. The sheet pressingmember includes a first rotational shaft, a detection piece and a corrugation piece. The first rotational shaft is supported above the discharging port. The detection piece can move between a first posture and a second posture. The corrugation piece rotates together with the detection piece, and abuts against a sheet discharged to endow the sheet with a wave shape. When the detection piece is turned into the first posture, the corrugation piece is changed into a contact posture where the corrugation piece comes into contact with the sheet to endow the sheet with a wave shape. When the detection piece is turned into the second posture, the corrugation piece is changed into a retracting posture where the corrugation piece separates from the sheet. According to the image forming apparatus, sheets can be endowed with a wave shape properly through a simple structure.

Description

technical field [0001] The present invention relates to an image forming apparatus having a discharge device for discharging paper on which an image is formed. Background technique [0002] The discharge device of the image forming apparatus often includes a wave-imparting sheet for applying a wave to the sheet during discharge in order to prevent the discharged sheet from being scattered after image formation. On the other hand, when the sheet is reversed (switched back) for double-sided printing and the waveform is given by the wave-giving sheet, abnormal noise may be generated when the sheet is conveyed on the double-sided printing path. [0003] Therefore, the waveform-applying sheet may be formed so as to be switchable between a waveform-applying state and a non-applying state. In addition, a wave portion (wave imparting piece) may be provided on a sheet detection device that detects the height of sheets stacked on the output tray. [0004] However, in the former case...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H29/70B65H29/20B65H43/06B65H29/60
CPCB65H29/70B65H29/20B65H43/06B65H29/60B65H2801/09B65H2801/06B65H2404/14H04N1/00469H04N1/00602G03G15/6552G03G15/50B41J3/60B41J13/106B41J27/12
Inventor 吉田健史三宅康弘
Owner KYOCERA DOCUMENT SOLUTIONS INC