JPH02132030U - - Google Patents
Info
- Publication number
- JPH02132030U JPH02132030U JP3935889U JP3935889U JPH02132030U JP H02132030 U JPH02132030 U JP H02132030U JP 3935889 U JP3935889 U JP 3935889U JP 3935889 U JP3935889 U JP 3935889U JP H02132030 U JPH02132030 U JP H02132030U
- Authority
- JP
- Japan
- Prior art keywords
- recording paper
- guide
- upper limit
- mounting table
- limit sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 108091008695 photoreceptors Proteins 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Controlling Sheets Or Webs (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Paper Feeding For Electrophotography (AREA)
Description
第１図は本考案の一実施例の要部の構成説明図
、第２図はピツクアツプコロ及び記録紙検知セン
サの構成説明図、第３図は上記動作を実現するた
めの回路構成説明図、第４図、第５図、第６図及
び第７図は従来例の構成説明図である。
１……感光体、３……転写部、５……大量給紙
装置、７……給紙カセツト、１０……載置台、１
１……ピツクアツプコロ、１３……分離コロ、１
５……給紙コロ、１６……リバースコロ、２０…
…後端ガイド、２１……アーム、２２……鎖、３
０……大量給紙装置、３４……サイドガイド、３
６……ガイド、３６ａ……支柱、３６ｂ……アー
ム、３６ｃ……バツクフエンス、３８……ガイド
駆動モータ、４０……センサ遮蔽板、４２……上
限センサ。
FIG. 1 is an explanatory diagram of the configuration of the main parts of an embodiment of the present invention, FIG. 2 is an explanatory diagram of the configuration of the pick-up roller and recording paper detection sensor, and FIG. 3 is an explanatory diagram of the circuit configuration for realizing the above operation. FIG. 4, FIG. 5, FIG. 6, and FIG. 7 are explanatory diagrams of the configuration of conventional examples. DESCRIPTION OF SYMBOLS 1... Photoreceptor, 3... Transfer unit, 5... Mass paper feeder, 7... Paper feed cassette, 10... Placement table, 1
1...Pickup roll, 13...Separation roll, 1
5... Paper feed roller, 16... Reverse roller, 20...
... Rear end guide, 21 ... Arm, 22 ... Chain, 3
0...Mass paper feeder, 34...Side guide, 3
6... Guide, 36a... Support, 36b... Arm, 36c... Backfence, 38... Guide drive motor, 40... Sensor shielding plate, 42... Upper limit sensor.
Claims (1)
紙の後端上部を押えるガイドを有した大量給紙装
置において、 前記ガイドはセツト状態にある記録紙の後端に
接する位置と、記録紙をセツトするための経路を
開放する退避位置との間を回動自在に構成され、 該載置台上の記録紙が載置台昇降モータにより
給紙可能な所定位置まで上昇したときにこれを検
知する上限センサと、上限センサからの検知信号
に基づいて該載置台昇降モータの駆動を停止させ
る制御回路と、前記ガイドを回動させるガイド駆
動モータとを有し、 前記制御回路は前記上限センサからの検知信号
に基づいてガイド駆動モータの駆動を停止させる
とともに、載置台上の記録紙がないことを検知さ
れたときにガイド駆動モータを逆転させて該ガイ
ドを退避位置に移動させることを特徴とする大量
給紙装置。[Scope of Claim for Utility Model Registration] In a mass paper feeder having a guide that presses the upper rear end of the recording paper set in a stacked state on the recording paper mounting table, the guide presses the rear end of the recording paper in the set state. It is configured to be rotatable between a position in contact with the recording paper and a retracted position that opens a path for setting the recording paper, and the recording paper on the mounting table is raised to a predetermined position where it can be fed by the mounting table lifting motor. an upper limit sensor that detects this when the upper limit sensor is activated, a control circuit that stops driving the platform lifting/lowering motor based on a detection signal from the upper limit sensor, and a guide drive motor that rotates the guide; The circuit stops driving the guide drive motor based on the detection signal from the upper limit sensor, and reverses the guide drive motor to move the guide to the retracted position when it is detected that there is no recording paper on the mounting table. A mass paper feeder characterized by being movable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3935889U JPH02132030U (en) | 1989-04-03 | 1989-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3935889U JPH02132030U (en) | 1989-04-03 | 1989-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02132030U true JPH02132030U (en) | 1990-11-02 |
Family
ID=31548201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3935889U Pending JPH02132030U (en) | 1989-04-03 | 1989-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02132030U (en) |
-
1989
- 1989-04-03 JP JP3935889U patent/JPH02132030U/ja active Pending
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