2-82
Service Manual
5061
POR complete, printer feeds blank page
This symptom is usually associated with the upper switch mounted on the front access door support.
Step
Actions and questions
Yes
No
1
Make sure that the ITU light shield is not broken.
Is the ITU light shield broken?
Replace the ITU
light shield.
Go to step 2
2
Make sure that the ITU light shield is not out of
position.
Is the ITU light shield out of position?
Properly align
ITU light shield.
Go to step 3
3
Make sure the ITU assembly interlock switch actuator
is not damaged or broken and actuates the switch
correctly.
Is the actuator damaged or broken?
Replace the ITU
assembly. See
“ITU assembly
removal” on
page 4-49
.
Go to step 4
4
Front cover assembly
Does the front cover assembly close correctly?
Go to step 5
Install the front
cover correctly,
or repair as
necessary.
5
Front cover assembly
Make sure the front cover flag is not broken or
damaged and actuates the switches correctly.
Is the flag broken or damaged?
Replace the front
cover. See
“Front cover or
front cover
backplate
assembly
removal” on
page 4-11
.
Go to step 6
6
HVPS/cover open interlock cable assembly to system
board—Make sure that the cable is correctly
connected to J14 on the system board and the ITU
autoconnect is seated correctly.
Is the cable connected correctly?
Go to step 7
Install the cable
correctly.
7
HVPS/cover open interlock cable assembly—Make
sure the front cover assembly is closed and the ITU is
correctly installed. Disconnect the switch cable from
J14 on the system board. Check for continuity between
J14-1 and J14-2 on the cable connector.
Is there continuity?
Replace the
system board.
See
“System
board removal”
on page 4-90
.
Replace the
HVPS/cover
open interlock
switch/cable
assembly (see
“Printhead
interlock cable
assembly” on
page 7-37
for
part number.)
Summary of Contents for C77X
Page 15: ...Notices and safety information xv 5061...
Page 16: ...xvi Service Manual 5061...
Page 22: ...xxii Service Manual 5061...
Page 44: ...1 22 Service Manual 5061...
Page 182: ...2 138 Service Manual 5061...
Page 293: ...Repair information 4 61 5061 6 Release the MPF latch F and remove the MPF...
Page 325: ...Repair information 4 93 5061 3 Remove all connectors C 4 Remove the transfer HVPS board...
Page 338: ...4 106 Service Manual 5061...
Page 339: ...Connector locations 5 1 5061 5 Connector locations Locations Printer boards...
Page 340: ...5 2 Service Manual 5061 Printer motors...
Page 341: ...Connector locations 5 3 5061 Printer sensors...
Page 342: ...5 4 Service Manual 5061 Cartridge contact assembly pin locations cyan magenta and yellow...
Page 343: ...Connector locations 5 5 5061 Cartridge contact assembly pin locations black...
Page 345: ...Connector locations 5 7 5061 Connectors System board...
Page 358: ...5 20 Service Manual 5061 Transfer high voltage power supply HVPS...
Page 368: ...5 30 Service Manual 5061...
Page 372: ...6 4 Service Manual 5061...
Page 380: ...7 8 Service Manual 5061 Assembly 3 1 Fuser web oiler 1 3 2...
Page 402: ...7 30 Service Manual 5061 Assembly 22 Electronics 3 3 3 2 1...
Page 404: ...7 32 Service Manual 5061 Assembly 22 1 Electronics 3 5 4 8 1 9 10 2 2 6 6 6 7 6 6...
Page 408: ...7 36 Service Manual 5061 Assembly 23 Electronics cabling interconnections 1...
Page 410: ...7 38 Service Manual 5061 Assembly 24 Electronics cabling interconnections 2...
Page 420: ...7 48 Service Manual 5061 Assembly 28 1 5 Bin mailbox 3 3 3 3 11 7 13 5 9 2 10 6 4 12 8 14 1 15...
Page 422: ...7 50 Service Manual 5061 Assembly 29 500 Sheet drawer option 3 11 7 5 9 2 10 6 4 8 1...
Page 438: ...7 66 Service Manual 5061 Assembly 33 Envelope option 2 1...
Page 442: ...7 70 Service Manual 5061 Assembly 36 Options...
Page 444: ...7 72 Service Manual 5061...
Page 450: ...B 2 Service Manual 5061 Print Quality Pages Page 1 total of five...
Page 451: ...Appendix B Print quality samples B 3 5061 Print Quality Pages Page 2 total of five...
Page 452: ...B 4 Service Manual 5061 Print Quality Pages Page 3 total of five...
Page 453: ...Appendix B Print quality samples B 5 5061 Print Quality Pages Page 4 total of five...
Page 458: ...B 10 Service Manual 5061...
Page 466: ...I 8 Service Manual 5061...
Page 476: ...I 18 Service Manual 5061...
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