Ricoh IS2022, Service Manual, Page: 294 / 313

SERVICE CALL CONDITIONS 10 August, 2001
7-8
Code No. Symptom Possible Cause
Finisher shift motor error (1000-sheet
finisher) 732 B
Roller shift does not finish within a
certain time after the shift motor turned
on.
•
Shift motor defective
•
Shift tray HP sensor defective
Bridge communication error 791 B
The SBCU cannot communicate with
the bridge unit properly when the
finisher is installed.
•
Poor connection between the main
machine and bridge unit
•
SBCU board defective
Finisher connection error 792 B
The SBCU cannot communicate with
the finisher properly when the bridge
unit is installed.
•
Poor connection between the finisher
and bridge unit
•
SBCU board defective
Interchange communication error 793 B
The SBCU cannot communicate with
the interchange unit properly when the
duplex unit is installed.
•
Poor connection between the
interchange unit and main machine
•
SBCU board defective
Startup without video output end error
(K) 800 D
Video transfer to the engine is started,
but the engine did not issue a video
transmission end command within the
specified time.
Controller board defective
Startup without video input end (K) 804 D
A video transmission was requested
from the scanner, but the scanner did
not issue a video transmission end
command within the specified time.
Controller board defective
Watchdog error 818 D
The CPU does not access the
watchdog register within a certain time.
•
Controller board defective
•
Software malfunction – download
controller firmware again
Kernel mismatch error 819 D
Software bug
Download controller firmware again
Self-Diagnostic Error: CPU 820 D
The central processing unit returned an
error during the self-diagnostic test.
•
Controller board defective
•
Download controller firmware again
Self-Diagnostic Error: ASIC 821 D
The ASIC returned an error during the
self-diagnostic test because the ASIC
and CPU timer interrupts were
compared and determined to be out of
range.
Controller board defective
Self-Diagnostic Error: HDD 822 D
The hard disk drive returned an error
during the self-diagnostic test.
•
HDD defective
•
HDD connector defective
•
Controller board defective
Self-diagnostic Error: NIB 823 D
The network interface board returned
an error during the self-diagnostic test.
•
Network interface board defective
•
Controller board defective
Self-diagnostic Error: NVRAM 824 D
The resident non-volatile RAM returned
an error during the self-diagnostic test.
•
Replace the NVRAM on the
controller board
•
Replace the controller board