JPS54107210A - Abnormity detection system for reading light source - Google Patents
Abnormity detection system for reading light sourceInfo
- Publication number
- JPS54107210A JPS54107210A JP1359078A JP1359078A JPS54107210A JP S54107210 A JPS54107210 A JP S54107210A JP 1359078 A JP1359078 A JP 1359078A JP 1359078 A JP1359078 A JP 1359078A JP S54107210 A JPS54107210 A JP S54107210A
- Authority
- JP
- Japan
- Prior art keywords
- light source
- output
- reading light
- current
- detection system
- 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
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Facsimile Transmission Control (AREA)
Abstract
PURPOSE: To discriminate the abnormal state of a reading light source which moves together with a reader in a body, by detecting the current state flowing to the light source.
CONSTITUTION: When contact C is closed according to start signals, etc.,of a reader, the current is flowed to reading light source 3 to cause light source 3 to emit light. The current is converted to a detection voltage by detection resistance R1. Detection voltage Vi and reference voltage Vs are compared with each other; and when Vi≥Vs is trun, output V0 indicating a normal state is generated. If comparison amplifier 7 outputs output V0, a facsimile unit is held in a driving state by output V0. If output V0 dissapears, the unit is stopped to prevent needless transmission.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1359078A JPS54107210A (en) | 1978-02-10 | 1978-02-10 | Abnormity detection system for reading light source |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1359078A JPS54107210A (en) | 1978-02-10 | 1978-02-10 | Abnormity detection system for reading light source |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54107210A true JPS54107210A (en) | 1979-08-22 |
Family
ID=11837402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1359078A Pending JPS54107210A (en) | 1978-02-10 | 1978-02-10 | Abnormity detection system for reading light source |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54107210A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56112180A (en) * | 1980-02-12 | 1981-09-04 | Fuji Xerox Co Ltd | Multitone wedge reading out device |
-
1978
- 1978-02-10 JP JP1359078A patent/JPS54107210A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56112180A (en) * | 1980-02-12 | 1981-09-04 | Fuji Xerox Co Ltd | Multitone wedge reading out device |
JPS6257138B2 (en) * | 1980-02-12 | 1987-11-30 | Fuji Xerox Co Ltd |
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