SERVICE CALL CONDITIONS 20 February, 2001
4-6
No.
Definition
Symptom Possible Cause
Communication error between BiCU and fax controller691 B
The BiCU board cannot communicate
with the fax controller.
• Poor connection between the BiCU
board and the fax controller
• BiCU board defective
• Fax controller defective
Communication error between BiCU and printer controller692 B
The BiCU board cannot communicate
with the printer controller.
• Poor connection between the BiCU
board and the printer controller.
• BiCU board defective
• Printer controller defective
Fax firmware error695 B
The fax program cannot be started.
(☛ Fax Service Manual)
• The fax firmware download has not
been completed correctly. Try again.
ADF gate abnormal760 B
The ADF Gate signal line between the
ADF main board and the IOB is
disconnected.
• ADF main board defective
• Input/output board defective
• Poor connection (ADF Gate line)
between the ADF main board and the
IOB.
Electrical total counter error900 B
The electrical total counter does not
work properly.
• NVRAM defective
Mechanical total counter901 B
The mechanical total counter does not
work properly.
• Mechanical total counter defective
• IOB defective
• Disconnected mechanical total
counter
IMB memory controller error921 B
A memory control job is not completed
within a certain period.
• IMB defective
• BiCU defective
• Poor connection between IMB and
BiCU
IMB DRAM error922 B
The machine detects a discrepancy in
the IMB DRAM write/read data during
its write/read test (done at power off/on
and at recovery from low power or
night/off mode).
• IMB defective
• BiCU defective
• Poor connection between BiCU and
IMB
Optional DRAM error924 B
The machine detects a discrepancy in
the Optional DRAM write/read data
during its write/read test (done at power
off/on and at recovery from low power
or night/off mode).
• Non-supported DRAM connected
• Poor connection between IMB and
optional DRAM
• Optional DRAM defective
• IMB defective
• BiCU defective
To Next Page
Loading...
