JPH0341730U - - Google Patents
Info
- Publication number
- JPH0341730U JPH0341730U JP10045589U JP10045589U JPH0341730U JP H0341730 U JPH0341730 U JP H0341730U JP 10045589 U JP10045589 U JP 10045589U JP 10045589 U JP10045589 U JP 10045589U JP H0341730 U JPH0341730 U JP H0341730U
- Authority
- JP
- Japan
- Prior art keywords
- feed roller
- paper
- motor
- detection means
- control device
- 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
- 230000002441 reversible effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000012840 feeding operation Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図はこの考案の一実施例を示す正面図、第
２図はパルスモータの駆動制御系を示す概念図、
第３図および第４図は作用説明用のフローチヤー
トである。
１…用紙束、２…用紙積載部、３…ピツクアツ
プローラ、４…フイードローラ、５…フイードロ
ーラ軸、９…リバースローラ、１２…検知手段、
１３…パルスモータ、１５…ＣＰＵ、１６…パル
スモータドライバ。
Fig. 1 is a front view showing an embodiment of this invention, Fig. 2 is a conceptual diagram showing a drive control system of a pulse motor,
3 and 4 are flowcharts for explaining the operation. DESCRIPTION OF SYMBOLS 1... Paper stack, 2... Paper stacking part, 3... Pick up roller, 4... Feed roller, 5... Feed roller shaft, 9... Reverse roller, 12... Detection means,
13...Pulse motor, 15...CPU, 16...Pulse motor driver.
Claims (1)
場合および１枚のときトルクリミツタを介して連
れ回り、かつ重送紙の場合は逆転するリバースロ
ーラとからなる分離ローラ対を有する分離ローラ
対給紙方式であつて、フイードローラ軸を駆動す
る正逆転可能なモータと、このモータを駆動制御
する制御装置とを有する給紙装置において、 フイードローラの近傍に用紙を検知する検知手
段を具え、この検知手段が給紙動作終了時に用紙
を検知している場合、前記制御装置によつて駆動
制御される前記モータがフイードローラ軸を逆転
駆動させ、前記検知手段が用紙を検知しなくなる
か、又は所定の時間を経過するかの早い方のタイ
ミングで、前記制御装置によつて駆動制御される
前記モータがフイードローラ軸の逆転駆動を停止
させるようになつていることを特徴とする給紙装
置。[Scope of Claim for Utility Model Registration] A separation roller pair consisting of a feed roller and a reverse roller that is in pressure contact with the feed roller and rotates along with it via a torque limiter when there is no paper or when there is only one sheet, and reverses the rotation when multiple sheets are fed. In a paper feeding device that uses a separating roller pair paper feeding system and has a forward/reversible motor that drives a feed roller shaft and a control device that controls the drive of this motor, a detection means for detecting paper is provided near the feed roller. If the detection means detects the paper at the end of the paper feeding operation, the motor controlled by the control device drives the feed roller shaft in the reverse direction, and the detection means no longer detects the paper; or a predetermined time has elapsed, whichever comes first, the motor, which is drive-controlled by the control device, stops the reverse rotation of the feed roller shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10045589U JPH0341730U (en) | 1989-08-30 | 1989-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10045589U JPH0341730U (en) | 1989-08-30 | 1989-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0341730U true JPH0341730U (en) | 1991-04-22 |
Family
ID=31649462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10045589U Pending JPH0341730U (en) | 1989-08-30 | 1989-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0341730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07237785A (en) * | 1994-02-28 | 1995-09-12 | Canon Inc | Paper feeding device and image forming device |
| WO1999052803A1 (en) * | 1998-04-14 | 1999-10-21 | Fuji Photo Film Co., Ltd. | Paper feed cassette and printer using it and paper feed method |
-
1989
- 1989-08-30 JP JP10045589U patent/JPH0341730U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07237785A (en) * | 1994-02-28 | 1995-09-12 | Canon Inc | Paper feeding device and image forming device |
| WO1999052803A1 (en) * | 1998-04-14 | 1999-10-21 | Fuji Photo Film Co., Ltd. | Paper feed cassette and printer using it and paper feed method |
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