Symptom: Charger Leak (Error Code 9-17)
6. Does CN21-3 stay low
while in standby mode ?
Replace the FDU or FCE.
Go to step 7.
7. Does CN21-8 stay low
while in standby mode ?
Replace the power pack.
Symptom: LD Failure (Error Code 9-20)
This error occurs in the following condition:
•
The laser synchronization signal was not detected within 10 ms of the start of printing
(sub-code 21)
Check
Action if Yes
Action if No
Check that all the laser optic components are aligned correctly and clean them if
necessary.
Check that the optical fibre is properly set.
Check the connection between the FDU (CN26) and the LDDR.
Check that the polygonal mirror motor and LDDR are correctly positioned.
If the problem still remains, replace the LDDR, FDU or FCE.
Symptom: Fusing Unit Failure (Error Code 9-22)
This error occurs in any of the following conditions:
•
During printing: If the fusing lamp stays above 185 °C for more than 60 s (sub-code 01)
•
Before start printing: If the fusing lamp takes more than 40 s to reach 160 °C (sub-code
02)
•
Power saver mode (fusing lamp OFF selected): If the fusing lamp takes more than 20
minutes to fall back to 100 °C. (sub-code 03)
•
Power saver mode (fusing lamp Power Saver Standby selected): If the fusing lamp
takes more than 20 minutes to fall back to 100 °C. (sub-code 04)
Power saver mode (fusing lamp Standby selected): If the fusing lamp takes more than
5 minutes to fall back to 145 °C. (sub-code 04)
•
Power saver mode (fusing lamp Power Saver Standby selected): If the fusing lamp
stays below 80 °C for more than 18 s. (sub-code 05)
Power saver mode (fusing lamp Standby selected): If the fusing lamp stays below 145
°C for more than 25 s. (sub-code 05)
•
During printing: If the fusing lamp stays below 140 °C for more than 1 s (sub-code 07)
•
At any time: If the fusing lamp temperature reaches 250 °C (sub-code 08)
•
At power on: If a thermistor defect (disconnection) is detected (sub-code 09)
Check
Action if Yes
Action if No
Before checking anything, do the following.
Reset the RAM address 80033C(H) to 00(H), then switch the power off, wait for a few sec-
onds, then switch back on. If the problem remains, check the following points.
Sub-code 01, 03, 04:
1. Replace the fusing lamp, thermistor, PSU, FDU and/or FCE.
Sub-code 02, 05, 07:
1. Check if the fusing lamp, thermostat, and/or the thermofuse is(are) open or not.
- If yes, replace the defective component(s).
- If no, go to step 2.
TROUBLESHOOTING
May 22nd, 1995
SERVICE CALL CONDITIONS
6-30
