JPS5569157A - Memory control system at power supply interruption of copying machine - Google Patents
Memory control system at power supply interruption of copying machineInfo
- Publication number
- JPS5569157A JPS5569157A JP14272178A JP14272178A JPS5569157A JP S5569157 A JPS5569157 A JP S5569157A JP 14272178 A JP14272178 A JP 14272178A JP 14272178 A JP14272178 A JP 14272178A JP S5569157 A JPS5569157 A JP S5569157A
- Authority
- JP
- Japan
- Prior art keywords
- volatile
- power supply
- data
- signal
- memories
- 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
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE:To eliminate the occurrence of troubles at the re-driving by evacuating necessary data into non-volatile memories and having the mode of the copying operation stored at the power source interruption. CONSTITUTION:When a CPU U1 detects power supply DOWN, it passes necessary data through an input-output control element U7, sends timing signal E/W, etc. to the respective terminals of a non-volatile memory control element U15 and applies the non-volatile data pushing signal to the terminals MG of non-volatile memories U13 and U14 to have them written in the non-volatile memories by MNOS gate input signal thereby storing them as non-volatile data. To read out these non- volatile data, initial resetting is done by turning on of power supply, after which the U1 sends the timing signal E/W, etc. to the element U15 through the element U7 and inputs the non-volatile data poping signal to the memories U13 and U14. As a result of this, the CPU determines the execution concerning copy run and therefore the occurrence of troubles at the re-driving may be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14272178A JPS5569157A (en) | 1978-11-18 | 1978-11-18 | Memory control system at power supply interruption of copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14272178A JPS5569157A (en) | 1978-11-18 | 1978-11-18 | Memory control system at power supply interruption of copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5569157A true JPS5569157A (en) | 1980-05-24 |
Family
ID=15322024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14272178A Pending JPS5569157A (en) | 1978-11-18 | 1978-11-18 | Memory control system at power supply interruption of copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5569157A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58160960A (en) * | 1982-03-18 | 1983-09-24 | Copyer Co Ltd | Method for storing state of operation of copying machine |
JPH0852924A (en) * | 1995-03-24 | 1996-02-27 | Casio Electron Mfg Co Ltd | Image forming apparatus |
-
1978
- 1978-11-18 JP JP14272178A patent/JPS5569157A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58160960A (en) * | 1982-03-18 | 1983-09-24 | Copyer Co Ltd | Method for storing state of operation of copying machine |
JPH0852924A (en) * | 1995-03-24 | 1996-02-27 | Casio Electron Mfg Co Ltd | Image forming apparatus |
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