Interleaf EP5000/EP4000 TROUBLESHOOTING
97.04.01
T-72
u
C0500, C0510
Step
Check Item
Result
Action
1
Does H1 light up when the Power
Switch is turned ON?
NO
Go to step 5.
2
Is TH1 installed properly?
NO
Reinstall TH1.
3
Is TH1 dirty?
YES
Clean or change TH1.
Measure resistance of TH1. Is is infi-
YES
Change TH1.
4
nite?
NO
Change PWB-A.
5
Perform the “Controller Board Check.”
Is malfunction code “C0311” displayed?
YES
Change PWB-A.
Check H1 for continuity. Is there conti-
YES
Change SSR1.
6
nuity?
NO
Change H1 or TS1.
u
C0520
Step
Check Item
Result
Action
1
Does H1 remain lit after the copier has
warmed up?
NO
Go to step 4.
2
Perform the “Controller Board Check.”
Is malfunction code “C0311” displayed?
YES
Change PWB-A.
3
Does H1 turn OFF?
NO
Change SSR1.
4
Is TH1 installed properly?
NO
Reinstall TH1.
5
Is TH1 dirty?
YES
Clean or change TH1.
Measure resistance of TH1. Is is 0
Ω
YES
Change TH1 (TH2).
6
or close to 0?
NO
Change PWB-A.