Ricoh MT-C1 - Page 413

15 February 2006 B064 SERIES SERVICE MODE
4-25
Trouble-
shooting
SC No. Symptom Possible Cause
Key/card counter device error 1 632 B
After 1 data frame is sent to the
device, an ACK signal is not
received within 100 ms, and is not
received after 3 retries.
• The serial line from the device to the
copier is unstable, disconnected, or
defective.
Key/card counter device error 2 633 B
During communication with the
device, the BCU received a break
(Low) signal.
• The serial line from the device to the
copier is unstable, disconnected, or
defective.
Key/card counter device error 3 634 B
After installation of the device, a
message alerts user to a backup
RAM error.
• Device control board defective
• Device control board backup battery
defective
Key/card counter device error 4 635 B
After installation of the device a
message alerts user to a battery
voltage abnormal error.
• Device control board defective
• Device control board backup battery
defective
BCU ↔ Controller data transfer error 1 640 C
Data is sent from the BCU to the
controller, but the transmission
causes a checksum error.
• The error is logged but the machine can
continue to operate.
BCU ↔ Controller data transfer error 2 641 C
Data is sent from the BCU to the
controller, but the transmission
causes a frame error.
• The error is logged but the machine can
continue to operate.
Engine startup error 670
D
• Engine does not respond within
30 s after power on.
• Engine down detected suddenly
during power on and warmup.
• BCU installation incorrect
• BCU defective
• Sudden communication reset occurred
between the BCU and the controller.
Controller startup error 672
D
• After power on the line between
the controller and the operation
panel does not open for normal
operation.
• After normal startup,
communication with the
controller ceases.
• Controller stalled
• Controller installed incorrectly
• Controller board defective
• Operation panel harness disconnected or
defective
GAVD Block 12 bus error
690
D
The register for this block is set for
an error.
• IPU defective
GAVD FCI Block I2 bus error
691
D
The register for this block is set for
an error.
• IPU defective
CDIC GAVD Block I2 bus error
692
D
The register for this block is set for
an error.
• IPU defective