JPH03127637U - - Google Patents
Info
- Publication number
- JPH03127637U JPH03127637U JP3645490U JP3645490U JPH03127637U JP H03127637 U JPH03127637 U JP H03127637U JP 3645490 U JP3645490 U JP 3645490U JP 3645490 U JP3645490 U JP 3645490U JP H03127637 U JPH03127637 U JP H03127637U
- Authority
- JP
- Japan
- Prior art keywords
- paper feed
- feed unit
- signal
- external paper
- external
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
第１図ａは一実施例のＬＣＳプリンタに大容量
給紙ユニツトを装着した場合の接続回路図、第１
図ｂは給紙ユニツトの回路図、第２図は一実施例
のＬＣＳプリンタに大容量給紙ユニツト及び給紙
ユニツトを配設した概略構成図、第３図はオプシ
ヨン装置内の用紙サイズ等のデータを検知するタ
イムチヤート、第４図ａは従来の画像形成装置に
オプシヨン装置を装着した場合の接続回路図、第
４図ｂは従来のオプシヨン装置内の回路例である
。
１……ＬＣＳプリンタ、２……感光体ドラム、
３……画像形成部、４，５……給紙カセツト、７
……用紙供給／搬送部、９……大容量給紙ユニツ
ト、１０……給紙ユニツト、２２，２７……給紙
コロ、２９……ＣＰＵ、３０ａ〜３０ｄ，３５ａ
〜３５ｄ……端子、３１，３９……トランジスタ
部、３２……インバータ、３６〜３８……フオト
センサ。
Figure 1a is a connection circuit diagram when a large-capacity paper feed unit is installed in an LCS printer according to an embodiment.
Figure b is a circuit diagram of the paper feed unit, Figure 2 is a schematic configuration diagram showing a large capacity paper feed unit and a paper feed unit arranged in an LCS printer of one embodiment, and Figure 3 is a diagram showing the paper size etc. in the optional device. A time chart for detecting data, FIG. 4a is a connection circuit diagram when an optional device is installed in a conventional image forming apparatus, and FIG. 4b is an example of a circuit inside the conventional optional device. 1... LCS printer, 2... Photosensitive drum,
3... Image forming section, 4, 5... Paper feed cassette, 7
...Paper supply/transport unit, 9...Large capacity paper feed unit, 10...Paper feed unit, 22, 27...Paper feed roller, 29...CPU, 30a to 30d, 35a
~35d...Terminal, 31, 39...Transistor part, 32...Inverter, 36-38...Photo sensor.
Claims (1)
成された画像形成装置において、 前記外付け給紙ユニツトが給紙する用紙サイズ
情報をコード化して本体装置の制御部へ伝送する
複数の信号線と、前記外付け給紙ユニツトに設け
られ該給紙ユニツトの種別を示す特定コードの信
号を前記信号線に供給する信号発生手段とを備え
、前記制御部は前記信号線を介して入力するコー
ド化された信号によつて前記外付け給紙ユニツト
の種別、装着状態、収納する用紙サイズを判別す
ることを特徴とする画像形成装置。[Scope of Claim for Utility Model Registration] In an image forming apparatus configured such that an external paper feed unit can be inserted into and removed from the main body of the apparatus, information on the size of paper fed by the external paper feed unit is encoded to control the main body apparatus. a plurality of signal lines for transmitting signals to the external paper feed unit; and signal generating means for supplying a signal of a specific code, which is provided in the external paper feed unit and indicates the type of the paper feed unit, to the signal line; An image forming apparatus characterized in that the type of the external paper feeding unit, the mounting state, and the size of paper to be stored are determined based on a coded signal input via a signal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3645490U JPH03127637U (en) | 1990-04-04 | 1990-04-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3645490U JPH03127637U (en) | 1990-04-04 | 1990-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03127637U true JPH03127637U (en) | 1991-12-24 |
Family
ID=31542696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3645490U Pending JPH03127637U (en) | 1990-04-04 | 1990-04-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03127637U (en) |
-
1990
- 1990-04-04 JP JP3645490U patent/JPH03127637U/ja active Pending
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