JPH0165236U - - Google Patents
Info
- Publication number
- JPH0165236U JPH0165236U JP1987160123U JP16012387U JPH0165236U JP H0165236 U JPH0165236 U JP H0165236U JP 1987160123 U JP1987160123 U JP 1987160123U JP 16012387 U JP16012387 U JP 16012387U JP H0165236 U JPH0165236 U JP H0165236U
- Authority
- JP
- Japan
- Prior art keywords
- roller
- paper feeding
- sheet
- paper
- pick
- 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
- 238000000926 separation method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
第１図は本考案の一実施例を示す斜視図、第２
図は同側面図、第３図および第４図はシートの残
量状態を夫々示す側面図、第５図は本考案の構成
を示すブロツク図、第６図は本考案の動作を説明
するためのフローチヤート図、第７図は従来の給
紙装置を示す側面図である。
２０……給紙カセツト、３……シート、４……
ピツクアツプローラ、３４……フイードローラ、
３５……セパレーシヨンローラ、３３……センサ
。
Fig. 1 is a perspective view showing one embodiment of the present invention;
The figures are side views, Figures 3 and 4 are side views showing the remaining amount of sheets, Figure 5 is a block diagram showing the configuration of the present invention, and Figure 6 is for explaining the operation of the present invention. FIG. 7 is a side view showing a conventional paper feeding device. 20...Paper cassette, 3...Sheet, 4...
Pick-up roller, 34... feed roller,
35...Separation roller, 33...Sensor.
Claims (1)
と共にシート載置板に積層されたシートの上面に
圧接し給紙方向に回転するピツクアツプローラと
、給紙方向に関しその下流側に設けられ給紙方向
に回転するフイードローラと、用紙経路を挾んで
前記フイードローラに接離自在に設けられ、トル
クリミツタにより給紙方向と逆方向に一定のトル
クが付与されているセパレーシヨンローラと、こ
のセパレーシヨンローラの下流側に設けられ、シ
ートの無有を検出するセンサと、を備え、前記ピ
ツクアツプローラを駆動した時点から、前記セン
サでシートを検出するまでの時間を計測し、この
計測結果により前記給紙カセツト内のシートの残
量を検出することを特徴とする給紙装置。 A pick-up roller that moves in the direction of the sheet placement plate of the paper feed cassette, presses against the top surface of the sheets stacked on the sheet placement plate, and rotates in the paper feeding direction; a separation roller that is provided so as to be able to approach and separate from the feed roller across the paper path, and to which a torque limiter applies a constant torque in the opposite direction to the paper feeding direction; and a separation roller that rotates in the direction opposite to the paper feeding direction; a sensor provided on the side to detect the presence or absence of a sheet; the sensor measures the time from when the pick up roller is driven until the sensor detects the sheet; A paper feeding device characterized by detecting the remaining amount of sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160123U JPH0165236U (en) | 1987-10-20 | 1987-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160123U JPH0165236U (en) | 1987-10-20 | 1987-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0165236U true JPH0165236U (en) | 1989-04-26 |
Family
ID=31441913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987160123U Pending JPH0165236U (en) | 1987-10-20 | 1987-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0165236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1072142A (en) * | 1996-03-27 | 1998-03-17 | Lexmark Internatl Inc | Device and method for detecting medium level in paper feeding tray |
-
1987
- 1987-10-20 JP JP1987160123U patent/JPH0165236U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1072142A (en) * | 1996-03-27 | 1998-03-17 | Lexmark Internatl Inc | Device and method for detecting medium level in paper feeding tray |
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