Specifications

2.15 CODE #81 — INTERFACE BOARD ERROR
- Definition -
The interface board is not connected when the duplex unit is installed.
- Possible Causes -
• Interface board installed incorrectly
• Interface board defective
• Main board defective
• 2nd paper size switch shorted
- Action -
Turn the main switch off and on.
Is the interface board installed properly?
Yes No
Install the interface board properly.
Check the voltage at pin No.42 on IC203.
Low High
Replace the interface board.
Is this SC code (E81) displayed even if the duplex tray is not installed?
Yes No
Replace the main board.
Check whether the 2nd paper size switches have a short.
No Short
Replace the shorted 2nd paper size switches shorten.
Replace the main board.
1 December 1990
6-48