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Sheet de-curling mechanism and printing apparatus using the same

A technology for leveling mechanism and paper, which is applied to equipment, printing devices, and electrical recording technology applying charge patterns, etc., and can solve problems such as inconvenience in use, paper curling, and paper stuck in the channel, etc. , to prevent curling

Active Publication Date: 2012-05-30
AVISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this heating and pressurizing process often causes the paper to curl, which affects the stacking of the printed paper, or even causes the paper to be stuck in the channel, causing various inconveniences in use.

Method used

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  • Sheet de-curling mechanism and printing apparatus using the same
  • Sheet de-curling mechanism and printing apparatus using the same
  • Sheet de-curling mechanism and printing apparatus using the same

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 A perspective view showing a printing device 1 / 1' / 1" according to the present invention. As figure 1 As shown, the printing device 1 / 1' / 1" of the present invention is a multifunctional business machine for scanning the original O in the original supply box 75, and printing the image of the original O on the paper S. However, the present invention Not limited thereto, the scanning unit for scanning the original O can also be omitted, leaving only the printing unit for printing the paper S. In the present invention, a laser printer is used as an example for illustration. However, in addition to the laser In addition to the printer, the printing device 1 / 1' / 1" of the present invention may also be other printers that cause the paper to curl after fixing the image, such as thermal transfer printers.

[0025] figure 2 A schematic diagram of a printing apparatus 1 according to a first embodiment of the present invention is shown. Such as figure 2 As shown, the p...

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Abstract

A sheet de-curling mechanism includes a passageway, a first roller and a second roller. The first roller is disposed in the passageway, transports a sheet at a first speed in a transporting direction. The second roller is disposed downstream of the first roller, transports the sheet at a second speed greater than the first speed, to stretch and flatten the sheet. A printing apparatus using the sheet de-curling mechanism is also provided.

Description

technical field [0001] The present invention relates to a paper leveling mechanism and a printing device using the same, in particular to a paper leveling mechanism using the speed difference between rollers to stretch and level the paper and a printing device using the same. Background technique [0002] A laser printer is a printer that can quickly print high-quality text and graphics on plain paper. The working process of a laser printer is usually divided into steps such as charging, exposure, development, transfer, fixing and cleaning. [0003] Regarding the fixing step, after the traditional laser printer transfers the toner, such as toner, to the paper, it goes through a process of heating and pressurizing to embed the toner onto the paper, thereby completing the printing process. However, this heating and pressurizing process often causes the paper to curl, which affects the stacking of the printed paper, or even causes the paper to be stuck in the channel, causing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J11/00
CPCB65H2404/6111B65H2301/51256B65H2801/06B65H29/52G03G15/6576B65H2801/12B65H29/125
Inventor 张佑伦
Owner AVISION
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