Paper supply device for ink-jet printer

Abstract

A paper feeding device of an inkjet printer includes a motor generating a drive force, a pickup drive shaft rotated by the motor, a pivoting link housing disposed on the pickup drive shaft, a pickup roller connected to the ling housing, and a clutch enlinking the pickup drive shaft and the link housing enabling the link housing to pivot by a predetermined angle by rotation of the pickup drive shaft.

Description

technical field [0001] The present invention relates to inkjet printers, and more particularly to paper feeding devices for inkjet printers. Background technique [0002] An inkjet printer is a printing device that produces an image on paper by ejecting ink from a print head, and generally has a front-in and front-out (FIFO) feed structure in which the device feeds and discharges in the same direction. [0003] figure 1 An example of an inkjet printer with a FIFO feed structure is shown. refer to figure 1 , the inkjet printer includes: a print head 10, which sprays ink onto the paper; a paper feed cassette 20, in which the paper is stacked; and a paper feed device 30, which stacks the paper The paper is supplied to the print head 10. The paper feeding device 30 includes: a pick-up roller 31, which picks up the stacked paper; a driving roller 32, which conveys the picked-up paper; and a supply roller, which continues conveying the conveyed paper to the print head 10 . ...

AI Technical Summary

Problems solved by technology

[0006] However, the ordinary paper feeding device 30 of an inkjet printer cannot make the driving roller 32 and the supply roller 33 convey the paper smoothly because the pickup roller 31 is placed on the paper even after the paper is picked up.

Therefore, the paper cannot be smoothly conveyed to the print head

thus reducing print quality

Also, when the pickup roller 31 does not press the paper with the same load every time it picks up the paper, the paper may be skewed or jammed.

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