JPS5497030A - Control unit tester for copier - Google Patents
Control unit tester for copierInfo
- Publication number
- JPS5497030A JPS5497030A JP275778A JP275778A JPS5497030A JP S5497030 A JPS5497030 A JP S5497030A JP 275778 A JP275778 A JP 275778A JP 275778 A JP275778 A JP 275778A JP S5497030 A JPS5497030 A JP S5497030A
- Authority
- JP
- Japan
- Prior art keywords
- control unit
- condition
- control
- logic
- copier
- 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
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE: To make it possible to easily accomplish the tests under the condition having a control unit mounted in a copier by testing the abnormality in control with the use of a microcomputer which is mounted in the control unit.
CONSTITUTION: The respective outputs of a control unit 1 (or at terminals R2 to Rm) are controlled to logic "0". Under this control condition, the light emitting diodes 81 to 8m of a display device 6 are all lit. When a switch 7 is operated from that condition to be rendered conductive and inconductive, the respective outputs (at the terminals R2 to Rm) of the control unit 1 are controlled to logic "1". Under this control condition, all the light emitting diodes 81 to 8m-1 are put out. By accomplishing such testing programs, if there is such a portion between the input and output terminals of the control unit 1 as has no condition varied, at least one output terminal does not take the logic "1" or "0", and this condition is displayed in the display device 6 to make it possible to judge that there is a trouble.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP275778A JPS5497030A (en) | 1978-01-17 | 1978-01-17 | Control unit tester for copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP275778A JPS5497030A (en) | 1978-01-17 | 1978-01-17 | Control unit tester for copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5497030A true JPS5497030A (en) | 1979-07-31 |
Family
ID=11538205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP275778A Pending JPS5497030A (en) | 1978-01-17 | 1978-01-17 | Control unit tester for copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5497030A (en) |
-
1978
- 1978-01-17 JP JP275778A patent/JPS5497030A/en active Pending
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