JPH0356743U

JPH0356743U -

Info

Publication number: JPH0356743U
Application number: JP11767489U
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，
ｃ，ｄは、積載厚さ検知手段の構造を示す説明図
、第３図ａ，ｂは紙厚検知手段の構造を示す説明
図、第３図ｃは他の紙厚検知手段の構造を示す説
明図、第３図ｄ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を示すブロツク図
、第５図は第３図ｃの作動演算を解説する説明図
、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を示す構成図である。符号の説明、１０６……感光体ドラム、１０９
Ａ，１０９Ｂ……給紙トレイ、１２０……給紙ロ
ーラ、１２１……レジストローラ、２０１……ト
レイモータ、２０２……トレイテーブル駆動ワイ
ヤ、２０３……リバースギアユニツト、２０４…
…給紙トレイ軸、２０５……デイスク、２０６…
…ペーパー残量基板、２０７……表示マーク、２
０８……用紙残量枚数表示カウンタ、３０１……
ローラ、３０２……従動コロ、３０３……転写紙
、３０４……軸、３０５……圧縮スプリング、３
０６……加圧用ローラ、３０７……レーザ式変位
センサ、３０８……メモリ、４００……主制御部
、４０１……操作制御部、４０２……光学制御部
、４０３……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 remaining paper amount detection device of the present invention is applied, and FIGS. 2a, b,
c and d are explanatory diagrams showing the structure of the stacked thickness detection means, Figures 3a and b are explanatory diagrams showing the structure of the paper thickness detection means, and Figure 3c shows the structure of another paper thickness detection means. 3d is an explanatory diagram of the display mark for displaying the remaining amount of paper and the remaining paper number display counter; FIG. 4 is a block diagram showing the control circuit of the copying machine of this embodiment; FIG. Figure 3c is an explanatory diagram explaining the operation calculation, Figures 6A and B are explanatory diagrams showing a conventional paper remaining amount detection means (device), and Figures 7A, B, and C are conventional paper remaining amount detection devices. It is a block diagram which shows an example. Explanation of symbols, 106... Photosensitive drum, 109
A, 109B... Paper feed tray, 120... Paper feed roller, 121... Registration roller, 201... Tray motor, 202... Tray table drive wire, 203... Reverse gear unit, 204...
...Paper feed tray shaft, 205...Disk, 206...
...Paper remaining amount board, 207...Display mark, 2
08... Remaining paper sheet count display counter, 301...
Roller, 302... Driven roller, 303... Transfer paper, 304... Shaft, 305... Compression spring, 3
06... Pressure roller, 307... Laser type displacement sensor, 308... Memory, 400... Main control section, 401... Operation control section, 402... Optical control section, 403... AC control section, 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 a cassette, and a paper thickness detection means for detecting the thickness of a single sheet of paper provided in a common conveyance section for the plurality of paper feeding devices. means, the paper thickness determined by the paper thickness detection means, and
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 detecting device according to claim 1, wherein the paper thickness detecting means also serves as a registration roller, and detects the paper thickness of one sheet of paper based on the displacement of the registration roller. (3) 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 a cassette, the thickness of the remaining amount of paper stacked on the paper feeding device a paper thickness detection means for detecting the displacement of paper feed rollers provided in each of the paper feed devices and detecting the paper thickness of one sheet of paper stacked thereon; The paper thickness determined by the thickness detection means, and
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. (4) 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 a cassette, the thickness of the remaining amount of paper stacked on the paper feeding device a remaining amount thickness detection means for detecting the paper thickness of a sheet of paper loaded in the paper feeding device; a paper thickness detection means for detecting the paper thickness of a sheet of paper loaded in the paper feeding device; a paper thickness determined by the paper thickness detection means;
Based on the remaining thickness detected by the remaining thickness detecting means, the number of sheets (
1. A paper remaining amount detecting device comprising: a paper sheet number calculating means for calculating the remaining sheet amount each time the paper feed tray is replenished with paper and/or the paper feed cassette is attached. (5) The remaining paper amount detection device according to any one of claims 1, 2, 3, and 4, further comprising a display means for displaying the number of paper sheets calculated by the paper number calculation means.