Oki B4100 - Manual (Page 261)

40055101TH Rev.4 261 /
(6) No heater output
To flowchart (3)
no 5 V output.
Replacement
Replacement
Replacement
1. Check the signal line.
1. PC3 fault
2. R21 or R22 open circuit
1. TRC1 fault
Is 5 V output provided?
Is the ACON signal
set to low?
Is the triac side
of PC3 ON?
Is TRC1 ON?
End
Start
No
No
No
No
Yes
Yes
Yes
Yes