SERVICE CALL CONDITIONS 19 January, 2001
4-12
Code No. Symptom Possible Cause
Finisher upper tray shift motor error732 C
The upper tray shift motor does not
stop within the specified time.
• Upper tray shift motor defective or
overloaded
• Upper tray shift sensor defective
Finisher lower tray lift motor error733 C
The stack height sensor does not
activate within a certain time period
after the lower tray lift motor turned on.
• Lower tray lift motor defective or
overloaded
• Upper stack height sensor defective
• Lower tray lower limit sensor
defective
Finisher lower tray shift motor error734 C
The lower tray shift motor driving the
lower tray does not stop within the
specified time.
• Lower tray shift motor defective or
overloaded
• Lower tray shift sensor defective
Startup without video output end error
(K)
800 B
Video transfer to the engine is started,
but a video transmission end command
was not issued by the engine within the
specified time.
• Control board defective
Startup without video input end (K)804 B
A video transmission was requested
from the scanner, but a video
transmission end command was not
issued by the scanner within the
specified time.
• Control board defective
Kernel mismatch error819 B
Software bug
• Software application error
Self-Diagnostic Error: CPU820 B
The central processing unit returned an
error during the self-diagnostic test.
• Controller board defective
• Software defective
Self-Diagnostic Error: ASIC821 B
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: HDD822 B
The hard disk drive returned an error
during the self-diagnostic test.
• HDD defective
• HDD connector defective
• Controller board defective
Self-diagnostic Error: NIB823 B
The network interface board returned
an error during the self-diagnostic test.
• Network interface board defective
• Controller board defective
Self-diagnostic Error: NVRAM824 B
The resident non-volatile RAM returned
an error during the self-diagnostic test.
• NVRAM damaged or abnormal
• Backup battery has discharged
• NVRAM socket damaged
Self-diagnostic Error: NVRAM/Optional
NVRAM
826 B
The NVRAM or optional NVRAM
returned an error during the self-
diagnostic test.
• NVRAM defective
Self-diagnostic Error: RAM827 B
The resident RAM returned a verify
error during the self-diagnostic test.
• Memory malfunction
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