image forming device
A technology of image and guiding components, applied in the electrical recording process using charge graphics, equipment, transportation and packaging of the electrical recording process using charge graphics, etc., can solve the problems of size increase, electrostatic discharge, discharge, etc., and achieve improvement Stiffness, effect of preventing noise interference
Active Publication Date: 2018-05-29
KYOCERA DOCUMENT SOLUTIONS INC
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AI Technical Summary
Problems solved by technology
[0006] However, in the case where the discharge roller is supported by a metal shaft, there is a problem that electrostatic discharge occurs between the metal shaft and the sheet before the sheet reaches the charge removing member.
In addition, since the pressing member is also charged with static electricity, there is a problem that discharge occurs between the pressing member and the sheet when the next sheet approaches the pressing member.
The discharge of static electricity near the sheet discharge port not only affects the electronic equipment installed in the image forming apparatus, but also causes noise interference (noise disturbance) such as malfunction of peripheral equipment.
In addition, if the miniaturization of the discharge unit is progressing on the one hand, and the size of the sheet capable of forming an image is increased on the other hand, the discharge unit becomes elongated in the width direction, and the rigidity of the discharge unit decreases.
Method used
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Embodiment Construction
[0021] Embodiments of the present invention will be described below with reference to the drawings. In addition, the following embodiment is only an example which actualized this invention, and does not limit the technical scope of this invention. In the following description, the image forming apparatus 10 according to the embodiment of the present invention is set on a flat surface ( figure 1 State shown) as a reference, define the up and down direction 6. In addition, to figure 1 The front side (front side) of the paper is defined as the front, and the front and rear direction 7 is defined. In addition, when the image forming apparatus 10 is viewed from the front side (front side), a left-right direction 8 is defined.
[0022] [Image forming apparatus 10 ]
[0023] figure 1 , Figure 2A as well as Figure 2B An image forming apparatus 10 is shown. The image forming apparatus 10 is a digital multi-functional peripheral equipped with various functions such as printing...
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The present invention provides an image forming apparatus capable of improving the rigidity of a discharge unit and preventing noise interference caused by static electricity. The discharge passage of the sheet discharge port; the discharge roller is provided near the sheet discharge port of the discharge unit, and discharges the sheet in the discharge passage from the sheet discharge port to the outside; the pressing member is located closer to the sheet discharge port than the sheet discharge port. The upstream side of the discharge direction of the sheet is attached to the guide member, protrudes from the guide member to the discharge passage, contacts and presses the sheet passing through the discharge passage; the reinforcement frame is made of a metal plate material, and is electrically connected to the reference potential part of the main body of the device. The discharge unit can be reinforced by being fixed to the device main body together with the discharge unit in a state where the portion of the guide member to which the pressing member is attached is covered.
Description
technical field [0001] The present invention relates to an image forming apparatus including a discharge unit that discharges a sheet on which an image has been formed from a sheet discharge port to the outside. Background technique [0002] Image forming apparatuses that form images electrophotographically are known. This image forming apparatus includes a fixing device, a discharge unit, and the like. The fixing device fuses the toner image transferred on the surface of a sheet such as printing paper and fixes it on the sheet. The discharge unit is provided downstream of the fixing device in the sheet conveyance direction. The discharge unit has a discharge passage inside, and the sheet on which the toner image is fixed passes through the discharge passage, and is discharged from a predetermined sheet discharge port to an external tray. [0003] In such an image forming apparatus, an electric field is generated between the sheet and the photosensitive drum, and a toner ...
Claims
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IPC IPC(8): G03G15/00
CPCG03G15/65G03G15/6538B65H2404/61B65H2801/06B65H29/125B65H29/52B65H29/70B65H2301/5321B65H2401/15B65H2404/6942B65H2601/521G03G15/6573B65H29/14G03G15/6552B65H2301/5133B65H2401/21B65H37/00B65H2801/03B65H2601/273
Inventor 古田信治穗谷智也
Owner KYOCERA DOCUMENT SOLUTIONS INC