Ricoh FT5580 Service Manual page 183

Code #61: Pulse Generator Malfunction
Definition
The CPU does not receive a pulse for a period longer than a 4.5 seconds
during a copy cycle.
Observation
When the start key is pressed, there is no machine activity except for
the scanner motor and main drive motor.
Guidance Display.
Points to Check
Check the main motor, the ac drive
(CN101-A16), and the pulse generator
Confirm that RA-1 is working.
Jogger Home Position Not On
Code #81:
Definition
Lights if the jogger home sensor output stays LOW.
Observation
Code #81 will be displayed during duplex mode copy cycles.
There is vibrating noise from the jogger.
Points to Check
Check the voltage at CN104-B2 on the main PCB.
Check the jogger motor.
Code #82: Jogger Home Position Not Off
Definition
Lights if the jogger home position sensor output stays HIGH.
Observation
Code #82 will be displayed during duplex mode copy cycles. There is
vibrating noise from the jogger.
Points to Check
Check the voltage at CN104-B2 on the main PCB.
Check the jogger motor.
Code #61 is displayed in the
b o a r d ( C N 5 0 3 - 2 ) , t h e m a i n b o a r d
(CN102-B2 and -B3).
10-7
12 June 1987