Ricoh SP 8400DN Field Service Manual page 1281

SC No. Type
•
•
•
•
•
•
SC No. Type
SC545- C Fusing Central Heater Continuously Heat (Low Voltage)
05
After waiting for full power for more than specified seconds continuously, not detected for
specified seconds.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
SC No. Type
SC547- D Zero cross Error (relay-contact soldering)
01
In the event of an error
•
•
Error Name/Error Condition/Major Cause/Solution
Outside input voltage guarantee
Remove the jammed paper in the fusing unit
Check and replace the thermopile (center).
Check the power supply voltage and reconnect the cable to the outlet.
Replace the thermostat.
Replace the BCU board.
Error Name/Error Condition/Major Cause/Solution
Definition of heater full power
Continuously heating rate set point (maximum heating rate)
Measurement start point
After reload (after heater extinguished, after rotation complete) below the standby
temperature (target temperature), measurement starts after a heater heat-up request is
issued.
Measurement stop condition
Rotation started due to a print signal during measurement or other.
Maximum heat-up Duty (SP interlinked value) 0% is excluded.
Thermopile (center) lens dirt
Thermopile (center) installed incorrectly
Thermopile bracket deformation
Heater disconnection
After excessive temperature rise prevention unit operates
Outside input voltage guarantee
Remove the jammed paper in the fusing unit
Check and replace the thermopile (center).
Check the power supply voltage and reconnect the cable to the outlet.
Replace the thermostat.
Replace the BCU board.
Error Name/Error Condition/Major Cause/Solution
Fusing relay defective (contact soldering)
Fusing relay drive circuit fault
6.Troubleshooting
543