Ricoh R-C4 Service Manual page 158

SERVICE CALL CONDITIONS
Code No.
195 B DFGATE assert error
The DFGATE signal does not assert
within 30 seconds after the original has
been scanned.
196 B DFGATE negate error
The DFGATE signal does not negate
within 1 minute after the DFGATE has
been asserted.
197 B DFGATE error
The DFGEATE signal has already been
asserted at the original scan.
198 B Memory address error
The IPU board does not receive the
memory address from the controller
board.
199 B DF scanning finish error
The original does not finish scanning
with in 1 minute
302 B Charge roller error
A charge roller current leak signal is
detected.
320 B Polygon motor error
• The XSCRDY signal did not activate
(go LOW) within 10 sec. after the
polygon motor turned on.
• The XSCRDY signal did not
deactivate (go HIGH) within 3 sec.
after the polygon motor turned off.
• The polygon motor continued to rotate
for the prescribed number of rotations
for 200 ms after the XSCRDY signal
went HIGH (deactivated).
• After the polygon motor turned on, or
after the machine detected that the
prescribed number of rotations had
changed, the XSCRDY signal did not
go LOW (active).
Symptom
4-4
Possible Cause
• ADF interface cable loose,
disconnected, or damaged
• SBCU defective
• Mismatched firmware between the
SBCU board and ADF
• ADF interface cable defective
• SBCU defective
• Mismatched firmware between the
SBCU board and ADF
• ADF interface cable defective
• SBCU board defective
• Mismatched firmware between the
SBCU board and ADF
• Mismatched firmware between the
SBCU board and controller board
• Controller defective
• SBCU defective
• IPU board defective
Note: Before you replace a board,
update the firmware. This can repair
the error.
• ADF interface cable defective
• SBCU board defective
• Mismatched firmware between the
SBCU board and ADF
• Charge high voltage supply board
defective
• Connection at PCU loose,
disconnected, or damaged
• Polygon motor I/F harness loose,
disconnected, or defective
• Polygon motor defective
• Polygon motor driver defective
• SBCU board defective
21 July 2006