Ricoh U-C1 B051 Service Manual page 166

26 July 2002
No.
Definition
835 B Self-Diagnostic Error: Parallel Interface
A loopback test error occurred.
836 B Self-diagnostic Error: Resident Font ROM
The resident font ROM returned an
error during the self-diagnostic test.
837 B Self-diagnostic Error: Optional Font ROM
The optional font ROM returned an
error during the self-diagnostic test.
838 D Verification error
The verification data of the clock
generator is read via the
communication bus. → The data
contradicts the normal value.
850 B Network I/F abnormal
The IP address is incorrect, or the
controller cannot accesses the
network due to a driver error.
851 B IEEE1394 I/F abnormal
The IEEE1394 interface cannot be
used, due to a driver error.
853 D IEEE802 11b card startup error
The machine starts up. → The
IEEE802 11b card connection board
is recognized. → The IEEE802 11b
card is not recognized.
854 D IEEE802 11b card access error
The machine has been reading the
data from the card. → The machine
loses access to the card; the
IEEE802 11b card connection board
is still recognized.
855 D IEEE802 11b card error
Some illegal data is found in the card.
856 D IEEE802 11b card connection board error
An error is detected in the IEEE802
11b card connection board.
860 C Startup without HD connection at main power on
The hard disk is not detected. (The
hard disk is not formatted.)
861 C Startup without HD detection when the power key was pressed
The hard disk is not detected.
Symptom
4-15
Possible Cause
• Loopback connector not detected
• IEEE1284 connector defective
• Defective controller board
• Font ROM defective
• Font ROM defective
• Defective controller board
• Incorrect network setting
• Defective controller board
• IEEE1394 interface board defective
• Defective controller board
• Loose connection between the card and
the connection board
• Loose connection between the card and
the connection board
• Defective card
• Defective card connection board
• Cable between controller and HD loose
or defective
• HD power connector loose or defective
• HD defective
• Controller defective
• Cable between controller and HD loose
or defective
• HD power connector loose or defective
• HD defective
• Controller defective
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