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Paper separation guiding plate of paper inlet box used for printing equipment

A paper feeding box and paper technology, applied in office printing equipment, pile separation, printing devices, etc., can solve the problem that printing paper cannot be separated correctly

Inactive Publication Date: 2004-02-18
HEWLETT PACKARD DEV CO LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the paper is thin or has a lot of static electricity, the uppermost print sheet 2 will not be separated properly and multiple print sheets will be fed at a time
Therefore, it is difficult to use this paper separation guide 40 in a printing apparatus using various types of printing paper

Method used

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  • Paper separation guiding plate of paper inlet box used for printing equipment
  • Paper separation guiding plate of paper inlet box used for printing equipment
  • Paper separation guiding plate of paper inlet box used for printing equipment

Examples

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Embodiment Construction

[0033] Reference will now be made in detail to the presently preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts throughout.

[0034] as in Figure 4 As shown in , the paper input cassette for a printing device according to an embodiment of the present invention includes a cassette body 100 , a pickup roller 300 , a pickup arm 200 and a paper separation guide 500 .

[0035] A large number of printing sheets 101 are stacked in the cassette body 100, and installed in a main body (not shown) of the printing apparatus. A backing plate 110 is provided in the bottom of the box body 100 for conveying the lowermost printing paper 102 .

[0036]The pickup roller 300 is installed in the upper portion of the cassette body 100 and applies pressure to the printing paper 101 stacked in the cassette body 100 and rotates to convey the printing paper 101 in the direction of the pape...

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PUM

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Abstract

A paper separating guide of a paper feeding cassette for a printing apparatus in which a picking error does not occur when a thick printing paper is stacked in a cassette. In the paper separating guide, a surface friction coefficient varies depending on a position of the printing papers. The friction coefficient is linearly varied depending on the contact position.

Description

technical field [0001] The present invention relates to a printing apparatus that uses a paper feeding cassette to feed printing paper, and more particularly, the present invention relates to a printing apparatus that uses a dam type paper feeding cassette in such a manner that a A paper separating guide to separate and feed printed paper. Background technique [0002] Generally speaking, printing devices, such as inkjet printers, laser printers, copiers, etc., all use a paper feeding device that can continuously feed a large amount of printing paper to implement continuous printing operations. A dam-type input tray is one type of this continuous feed device. This type of input tray uses a paper separation guide. figure 1 An example of a paper input tray for a dam-type printing device is shown. [0003] as in figure 1 As shown in , this paper input cassette includes a cassette body 10 , a pick-up roller 30 (a pick-up roller), a pick-up arm 20 and a paper separation guide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/00B65H3/06B65H3/46B65H3/52
CPCB65H2404/5311B65H3/5223B65H2511/152B65H3/0684B65H2515/30B65H2405/1136B65H3/56B65H2404/5213B65H2511/15B65H2220/02B65H2220/01G03G15/00
Inventor 朴庆虎
Owner HEWLETT PACKARD DEV CO LP