JPH0356742U

JPH0356742U -

Info

Publication number: JPH0356742U
Application number: JP11767389U
Authority: JP
Priority date: 1989-10-06
Filing date: 1989-10-06
Publication date: 1991-05-31

Description

[Brief explanation of drawings]

第１図は本発明の用紙残量検知装置を適用した
複写機の一実施例を示す構成図、第２図Ａ，Ｂは
用紙の積載残量厚さを検知する残量厚さ検知手段
の構成図、第３図は用紙残量を表示する表示マー
ク及び用紙残量枚数表示カウンタの説明図、第４
図は本実施例の複写機の制御回路ブロツク図、第
５図は検出残量と給紙枚数の関係を示す説明図、
第６図Ａ，Ｂは従来の用紙残量検知手段（装置）
を示す説明図、第７図Ａ，Ｂ，Ｃは従来の用紙残
量検知装置の一例の構成図。符号の説明、１０１……コンタクトガラス、１
０２……ランプ、１０３，１０４……ミラー、１
０５……レンズ、１０６……感光体ドラム、１０
７……帯電器、１０８……現像器、１０９Ａ，１
０９Ｂ……給紙トレイ、１１０……転写器、１１
１……クリーニング部、１１２……定着装置、１
１３……排出トレイ、２０１……トレイモータ、
２０２……トレイ駆動軸、２０３……トレイ支持
軸、２０４……残量検知ワイヤ、２０５……遮蔽
板、２０６……フオトセンサ、３０１……表示マ
ーク、３０２……用紙残量枚数表示カウンタ、３
０３……残量表示バー、４００……主制御部、４
０１……操作制御部、４０２……光学制御部、４
０３……ＡＣ制御部、４０４……各種センサ。 FIG. 1 is a configuration diagram showing an embodiment of a copying machine to which the paper remaining amount detection device of the present invention is applied, and FIGS. The configuration diagram, Figure 3 is an explanatory diagram of the display mark that displays the remaining amount of paper and the counter that displays the number of remaining sheets of paper, and Figure 4
The figure is a control circuit block diagram of the copying machine of this embodiment, and FIG. 5 is an explanatory diagram showing the relationship between the detected remaining amount and the number of sheets fed.
Figures 6A and B show conventional paper remaining amount detection means (device)
FIGS. 7A, 7B, and 7C are configuration diagrams of an example of a conventional paper remaining amount detection device. Explanation of symbols, 101...Contact glass, 1
02...Lamp, 103,104...Mirror, 1
05... Lens, 106... Photosensitive drum, 10
7... Charger, 108... Developer, 109A, 1
09B...Paper feed tray, 110...Transfer device, 11
1... Cleaning section, 112... Fixing device, 1
13...Ejection tray, 201...Tray motor,
202... Tray drive shaft, 203... Tray support shaft, 204... Remaining amount detection wire, 205... Shielding plate, 206... Photo sensor, 301... Display mark, 302... Remaining paper sheet number display counter, 3
03... Remaining amount display bar, 400... Main control unit, 4
01...Operation control unit, 402...Optical control unit, 4
03...AC control unit, 404...Various sensors.

Claims

[Scope of Claim for Utility Model Registration] (1) In a paper remaining amount detection device that detects the remaining amount of paper such as transfer paper loaded on a paper feeding device such as a paper feeding tray or cassette, a remaining amount thickness detection means for detecting the remaining thickness of the stacked paper; and a remaining amount thickness detection means for detecting the thickness of the remaining amount of paper loaded from the paper feeder while the remaining amount thickness detected by the remaining amount thickness detection means changes by a predetermined thickness. a paper thickness calculating means for calculating the thickness of one sheet of the paper based on the number of fed sheets; a paper thickness calculated by the paper thickness calculating means;
Based on the remaining thickness detected by the remaining thickness detecting means, the number of sheets (
1. A paper remaining amount detection device comprising: paper sheet number calculation means for calculating the number of remaining sheets. (2) The paper remaining amount detection device according to claim 1, further comprising a display means for displaying the number of paper sheets calculated by the paper number calculation means.