2-80
Service Manual
5061
Step D
Black only retract (BOR) service check
Step
Actions and questions
Yes
No
1
Enter the Diagnostics Mode and select
INPUT TRAY
TESTS, Sensor Test,
and
Tray 1
. You can activate
the paper level sensor inside the printer. The paper
level sensor is a dual sensor and checks the following
levels for Tray 1.
The Tray 1 level sensor is a dual sensor assembly that
senses when tray 1 is empty, nearly empty, or partially
empty.
Does the Sensor Test pass?
Contact your next
level of support.
Go to step 2
2
Paper level sensing assembly—Make sure the
assembly is not loose or damaged. Make sure the
bellcrank is not broken.
Are any parts loose or broken?
Repair or replace
parts as
necessary.
Go to step 3
3
Check the paper level sensing cable for correct
installation at JTRAY1 on the system board and to the
paper level sensing dual sensor assembly.
Is the cable connected correctly?
Go to step 4
Install the cable
correctly.
4
Check the paper level sensing assembly flag for
correct installation and that the flag is not broken or
damaged.
Is the paper level sensing assembly installed correctly
and the flag not broken or damaged?
Go to step 5
Install correctly or
replace the flag if
damaged or
broken.
5
Check continuity of the paper level sensing cable.
Is there continuity?
Go to step 6
Replace the level
sensing cable.
6
Check the voltage at JTRAY1. It should measure
approxi5 V dc.
Is the voltage correct?
Replace the level
sensing
assembly.
Replace the
system board.
See
“System
board removal”
on page 4-90
.
Step
Actions and questions
Yes
No
1
Using the toggle ITU function in diagnostics mode, test
the BOR system. Remove the print cartridges, and
watch the belt while activating the toggle function.
Does the ITU belt move up and down when the ITU is
toggled?
Go to
quality service
check” on
page 2-95
.
Go to step 2
2
Remove the ITU. Locate the BOR gear, and manually
activate the gear. Verify that the front and back BOR
cams are moving the respective bell cranks.
Do the cams move back and forth properly?
Replace in the
following order:
1.
“BOR drive
assembly
removal” on
page 4-34
.
2.
“System
board
removal” on
page 4-90
.
Determine which
component is
preventing the
proper
movement.
Содержание C77X
Страница 15: ...Notices and safety information xv 5061...
Страница 16: ...xvi Service Manual 5061...
Страница 22: ...xxii Service Manual 5061...
Страница 44: ...1 22 Service Manual 5061...
Страница 182: ...2 138 Service Manual 5061...
Страница 275: ...Repair information 4 43 5061 3 Unlatch the alignment stud C 4 Remove the front right light shield...
Страница 282: ...4 50 Service Manual 5061 4 Raise the ITU release lever B 5 Slide the ITU assembly from the printer...
Страница 293: ...Repair information 4 61 5061 6 Release the MPF latch F and remove the MPF...
Страница 295: ...Repair information 4 63 5061 4 Unhook the autocompensator spring C 5 Rotate the shaft up and out of the MPF assembly...
Страница 325: ...Repair information 4 93 5061 3 Remove all connectors C 4 Remove the transfer HVPS board...
Страница 338: ...4 106 Service Manual 5061...
Страница 339: ...Connector locations 5 1 5061 5 Connector locations Locations Printer boards...
Страница 340: ...5 2 Service Manual 5061 Printer motors...
Страница 341: ...Connector locations 5 3 5061 Printer sensors...
Страница 342: ...5 4 Service Manual 5061 Cartridge contact assembly pin locations cyan magenta and yellow...
Страница 343: ...Connector locations 5 5 5061 Cartridge contact assembly pin locations black...
Страница 344: ...5 6 Service Manual 5061 System board cabling reference Refer to the System board wiring diagrams for additional details...
Страница 345: ...Connector locations 5 7 5061 Connectors System board...
Страница 358: ...5 20 Service Manual 5061 Transfer high voltage power supply HVPS...
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Страница 410: ...7 38 Service Manual 5061 Assembly 24 Electronics cabling interconnections 2...
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Страница 422: ...7 50 Service Manual 5061 Assembly 29 500 Sheet drawer option 3 11 7 5 9 2 10 6 4 8 1...
Страница 432: ...7 60 Service Manual 5061 Assembly 31 1 High capacity input tray HCIT 1 2 6 3 7 11 8 8 4 4 5 5 3 9 10 12 4 4 4 4 13 14...
Страница 438: ...7 66 Service Manual 5061 Assembly 33 Envelope option 2 1...
Страница 442: ...7 70 Service Manual 5061 Assembly 36 Options...
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Страница 450: ...B 2 Service Manual 5061 Print Quality Pages Page 1 total of five...
Страница 451: ...Appendix B Print quality samples B 3 5061 Print Quality Pages Page 2 total of five...
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Страница 453: ...Appendix B Print quality samples B 5 5061 Print Quality Pages Page 4 total of five...
Страница 457: ...Appendix B Print quality samples B 9 5061 Printhead electronic alignment test page Magenta two of two...
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