JPH0440239U - - Google Patents
Info
- Publication number
- JPH0440239U JPH0440239U JP8140090U JP8140090U JPH0440239U JP H0440239 U JPH0440239 U JP H0440239U JP 8140090 U JP8140090 U JP 8140090U JP 8140090 U JP8140090 U JP 8140090U JP H0440239 U JPH0440239 U JP H0440239U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- normally
- closed
- opening
- closing member
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Electrophotography Configuration And Component (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Description
第１図は直流系の安全スイツチと信号検出回路
の配置を示す本考案による回路例を示す図、第２
図は交流系の安全スイツチと信号検出回路の配置
を示す本考案による回路例を示す図である。
１，１１……共通接点、２，１２……常開接点
、３，１３……常閉接点、ＰＣ１，ＰＣ２……フ
オトカプラ。
Figure 1 is a diagram showing an example of a circuit according to the present invention showing the arrangement of a DC system safety switch and a signal detection circuit;
The figure is a diagram showing an example of a circuit according to the present invention showing the arrangement of an AC safety switch and a signal detection circuit. 1, 11... Common contact, 2, 12... Normally open contact, 3, 13... Normally closed contact, PC1, PC2... Photo coupler.
Claims (1)
開接点、常閉接点を有するスイツチを用いた画像
形成装置において、共通接点を電源に接続し、常
開接点に負荷を接続し、常閉接点に開閉部材の開
放検出回路を接続し、開閉部材の閉鎖時常閉接点
が開いた常開接点が閉じ、それにより通常の画像
形成動作が保証され、開閉部材の開放時常開接点
が開いて常閉接点が閉じ、前記開放検出回路より
開放信号が得られることを特徴とする画像形成装
置。 In an image forming apparatus using a switch that is equipped with a switch that can be opened and closed and further has a common contact, a normally open contact, and a normally closed contact, the common contact is connected to a power supply, the normally open contact is connected to a load, and the normally closed contact is The open/close detection circuit of the opening/closing member is connected to the opening/closing member, and when the opening/closing member is closed, the normally open contact opens and the normally open contact closes, thereby ensuring normal image forming operation, and when the opening/closing member is opened, the normally open contact opens and normally closes. An image forming apparatus characterized in that a contact is closed and an open signal is obtained from the open detecting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990081400U JP2529071Y2 (en) | 1990-07-31 | 1990-07-31 | Image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990081400U JP2529071Y2 (en) | 1990-07-31 | 1990-07-31 | Image forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0440239U true JPH0440239U (en) | 1992-04-06 |
| JP2529071Y2 JP2529071Y2 (en) | 1997-03-12 |
Family
ID=31627315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990081400U Expired - Lifetime JP2529071Y2 (en) | 1990-07-31 | 1990-07-31 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2529071Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439102U (en) * | 1977-08-23 | 1979-03-15 | ||
| JPS60170867A (en) * | 1984-02-15 | 1985-09-04 | Fuji Xerox Co Ltd | Interlock detecting circuit of copying machine |
-
1990
- 1990-07-31 JP JP1990081400U patent/JP2529071Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5439102U (en) * | 1977-08-23 | 1979-03-15 | ||
| JPS60170867A (en) * | 1984-02-15 | 1985-09-04 | Fuji Xerox Co Ltd | Interlock detecting circuit of copying machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2529071Y2 (en) | 1997-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |