Ricoh Pro 8300S - Electrical Short in the Gluing Unit; Sc753-40; Sc753-41

1.SC Codes
477
SC753-40
Error Name
Electrical short in the gluing unit
Pattern
B
Error Condition
A temperature of less than 5 degrees was detected for 1 sec. or more than 10 sec. after power on.)
However, if the thermistor detected less than 100 degrees after measuring temperature at start up,
temperature is checked again after 50 sec.
Major Cause
 Glue temperature thermistor defective
 Glue heater defective
 Slave board defective
Solution
 Reconnect the connector.
 Replace the gluing unit.
 Replace the slave board.
After the repairs, cancel the low performance mode, and then turn the power off/on.
SC753-41
Error Name
Perfect Binder: Glue heater startup error 1
Pattern
B
Error Condition
Glue temperature thermistor did not detect a temperature of 140 degrees within 200 sec. after it
detected a temperature over 50 degrees.
Major Cause
 Glue temperature thermistor defective
 Glue heater defective
 Slave board defective