JPH0453257U - - Google Patents
Info
- Publication number
- JPH0453257U JPH0453257U JP9619290U JP9619290U JPH0453257U JP H0453257 U JPH0453257 U JP H0453257U JP 9619290 U JP9619290 U JP 9619290U JP 9619290 U JP9619290 U JP 9619290U JP H0453257 U JPH0453257 U JP H0453257U
- Authority
- JP
- Japan
- Prior art keywords
- input
- output
- output port
- identification circuit
- unit
- 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 3
Landscapes
- Handling Of Cut Paper (AREA)
- Dry Development In Electrophotography (AREA)
- Electrophotography Configuration And Component (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Record Information Processing For Printing (AREA)
- Color Electrophotography (AREA)
Description
第１図は一実施例の判別装置の構成図、第２図
ａ〜ｆはユニツトの接続状態を説明する図、第３
図は一実施例の判別装置の動作を説明するフロー
チヤート、第４図ａ〜ｃは３本のポートを使用し
た場合のユニツトの接続例を説明する図である。
１……ＣＰＵ、２……制御基板、２ａ〜２ｅ，
３ａ〜３ｅ……端子、３……現像ユニツト、４…
…バツフア、５，６……スリーステートバツフア
、７……トナーセンサ、８……コネクタ。
Fig. 1 is a configuration diagram of a discrimination device according to an embodiment, Figs. 2 a to f are diagrams explaining the connection state of units, and Fig.
The figure is a flowchart for explaining the operation of the discrimination device of one embodiment, and FIGS. 4a to 4c are diagrams for explaining an example of unit connection when three ports are used. 1...CPU, 2...Control board, 2a to 2e,
3a to 3e...Terminal, 3...Developing unit, 4...
... Buffer, 5, 6... Three-state buffer, 7... Toner sensor, 8... Connector.
Claims (1)
トの種別を判別する判別装置において、 前記ユニツト内に設けられ、該ユニツトの本体
装置への着脱に応じて前記本体装置へコネクタを
介して電気的に接続される識別回路と、 前記本体装置に設けられ、前記コネクタを介し
て前記識別回路と連結される入出力兼用ポートと
、 該入出力兼用ポートの入出力状態を切り換える
入出力切り換え制御手段と、 該入出力切り換え制御手段が前記入出力兼用ポ
ートを出力側に切り換えている時、所定信号を前
記識別回路へ出力する所定信号出力手段と、 前記入出力切り換え制御手段が前記入出力兼用
ポートを入力側に切り換えている時、前記入出力
兼用ポートに入力する前記識別回路の信号状態か
ら装着されたユニツトの種類を判別する判別手段
と、 を備えることを特徴とする判別装置。[Claims for Utility Model Registration] A discriminating device for determining the type of a unit that is configured to be removably attached to a main body device, wherein the discriminating device is provided in the unit and is configured to be attached to or detached from the main body device. an identification circuit electrically connected to the main unit via a connector; an input/output port provided on the main body device and connected to the identification circuit via the connector; and an input/output state of the input/output port. input/output switching control means for switching; predetermined signal output means for outputting a predetermined signal to the identification circuit when the input/output switching control means switches the input/output port to the output side; and the input/output switching control means When the input/output port is switched to the input side, the device is characterized by comprising: discriminating means for determining the type of the installed unit from the signal state of the identification circuit input to the input/output port. Discrimination device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9619290U JPH0453257U (en) | 1990-09-13 | 1990-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9619290U JPH0453257U (en) | 1990-09-13 | 1990-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0453257U true JPH0453257U (en) | 1992-05-07 |
Family
ID=31835521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9619290U Pending JPH0453257U (en) | 1990-09-13 | 1990-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453257U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63212956A (en) * | 1987-02-27 | 1988-09-05 | Bando Chem Ind Ltd | Electrophotographic recorder |
-
1990
- 1990-09-13 JP JP9619290U patent/JPH0453257U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63212956A (en) * | 1987-02-27 | 1988-09-05 | Bando Chem Ind Ltd | Electrophotographic recorder |
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