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2/99
OTHER FAULTS RAPs
DocuPrint C55/C55mp/[NC60]
2-33
OF2
OF2.3 The message display is flickering
off and on, or displaying random
characters
.
PROCEDURE
Refer to BSD 2.1 and check the following
signals:
•
If the Message is flickering off and on,
check CN103-27 (DATA 1) for an open.
•
If the Message is illegible, and the K LED is
on all the time, check CN103-25 (DATA 3)
for a short to ground.
•
If the Message is illegible, and the M LED
is on all the time, check CN103-27
(DATA 1) for a short to ground.
•
If the Message is illegible, and the Y LED is
on all the time, check CN103-28 (DATA 0)
for a short to ground.
If all appear OK, replace the Control Panel
PWB,
If the problem still exists, replace the PCU
PWB.
OF2.4 Message display works OK, LEDs
do not work correctly.
PROCEDURE
If the On Line LED never comes on, refer to
BSD 6 and check the following:
•
CN104-6 CRDY (Command Ready) for an
open.
•
CN104-2 CMD (Command) for an open or
a short.
If the LEDs are flickering off and on, refer to
BSD 2.1 and check the following:
•
CN103-21 LED Enable for a short to
ground.
If the LEDs are off, refer to BSD 2.1 and check
the following:
•
CN103-21 LED Enable for an open.
If all appear OK, replace the Control Panel
PWB.
If the problem still exists, replace the PCU
PWB.
OF2.5 Message display works OK,
Switches do not work correctly.
PROCEDURE
When the switches do not work properly, refer
to BSD 2.1 and check the following:
•
CN103-20 Switch Enable for an open or a
short.
If OK, replace the Control Panel PWB.
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 ...