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Trouble shooting and Diagnostics
5-3
Display That means.... Cause
NV RAM OK Error on the RAM of S Control Unit defective
the Control Unit
RAM OK Checksum error S (P)ROM defective
(P)ROM 1
ROM 1 OK No Fonts available S Character generator P(ROM)
on PM damaged or missing
MC OK Fault on Control Unit S Control Unit defective
S Type mismatch of PM and
Control Unit
S PBC (Printer Base Controller)
on Control Unit damaged
S SPC (Speed Controller) on
Control Unit damaged
If all tests have been passed successfully the following message will be
displayed:
READY 1 ELQ / The Printer is OK S Printer ready for operation
BUSY 1 ELQ