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2/99
STATUS INDICATOR RAPs
DocuPrint C55/C55mp/[NC60]
2-23
T2, U0
T2 OVER TEMPERATURE RAP
The fuser temperature is greater than 240°C.
INITIAL ACTION
Remove the Fuser Module and check the
condition of the Fuser Connectors. Reinstall
the Fuser Module.
Switch the power off wait 10 seconds and
switch the power on. Recheck for the fault.
PROCEDURE
Allow the fuser to cool. Set up the meter to
read +24 VDC. Measure between CN107-18
(+) and ground (
−
).
When the fuser is cold, the reading should be
around 0 VDC. When the fuse warms up, the
reading should switch to approximately 22
VDC.
The readings are OK.
Y
N
Go to BSD 10.5 in Section 7 and trouble-
shoot the Fuser on (L) signal for a short to
ground CN107-18).
If the wiring is OK, replace the PCU PWB.
If the problem still exists, replace the Low
Voltage Power Supply.
Triac shorted, replace the Low Voltage Power
Supply.
U0 IOT ROM ERROR RAP
A ROM error was detected.
INITIAL ACTION
Switch the power off wait 10 seconds and
switch the power on. Recheck for the fault.
If the problem still exists, replace the PCU
PWB.
Summary of Contents for DocuPrint C55
Page 14: ...SERVICE CALL PROCEDURES 2 99 NOTES 1 6 DocuPrint C55 C55mp NC60 Notes ...
Page 56: ...OTHER FAULTS RAPs 2 99 NOTES 2 42 DocuPrint C55 C55mp NC60 NOTES ...
Page 76: ...IMAGE QUALITY SPECIFICATIONS 2 99 NOTES 3 20 DocuPrint C55 C55mp NC60 NOTES ...
Page 130: ...REPAIRS ADJUSTMENTS 2 99 NOTES 4 42 DocuPrint C55 C55mp NC60 NOTES ...
Page 216: ...GENERAL PROCEDURES 2 99 NOTES 6 18 DocuPrint C55 C55mp NC60 Notes ...
Page 252: ...GENERAL PROCEDURES 2 99 NOTES 6 54 DocuPrint C55 C55mp NC60 NOTES ...
Page 272: ...GENERAL PROCEDURES 2 99 NOTES 6 74 DocuPrint C55 C55mp NOTES ...
Page 274: ...GENERAL PROCEDURES 2 99 NOTES 6 76 DocuPrint NC60 NOTES ...