2-50
Service Manual
5061
5
Open the MPF to the horizontal position, and check the
paper path for obstructions.
Is the paper path obstructed?
Clear the
obstruction.
Go to step 6
6
Raise the pick tire off the media, and test the MPF.
Does the pick tire turn?
Go to step 8
Go to step 7
7
Open the lower jam access door, move the MPF
bracket assembly gear to the lowest position and test
the MPF.
Does the MPF bracket assembly rise and engage the
gear?
Go to step 8
Replace the MPF
bracket
assembly.
8
Does media jam on the friction buckler?
Replace the
friction buckler.
See
“Friction
buckler and
buckler housing
removal” on
page 4-40
.
Go to step 9
9
Enter the Diagnostics Menu. Select
INPUT TRAY
TESTS
,
Sensor Test
, and
MP Feeder
. Manually
actuate the MPF sensor by moving the paper flag in
the MPF.
Does the test pass?
Replace the MPF
assembly.
Go to step 2
10
Make sure that the MPF sensor cable from the system
board is correctly installed at J10 on the system board.
Is the cable correctly installed?
Go to step 11
Install the cable
correctly.
11
Check the cable connection between the MPF sensor
cable and the sensor. Check that the sensor is
snapped
into the bracket.
Is the connection good between the two cables?
Go to step 12
Install the cable
correctly.
12
Disconnect the sensor cable from J10 on the system
board.
Measure the following voltages on J10, being careful
not to short any adjacent pins in the connector. All
voltages are approximate values.
Are the voltages correct?
Go to step 13
Replace the
system board.
See
“System
board removal”
on page 4-90
.
13
Check continuity of the sensor cable that is between
the system board and MPF assembly.
Is there continuity?
Replace the
sensor assembly.
Replace the
sensor cable
assembly.
Step
Actions and questions
Yes
No
Connector pin Voltage
J10-11
0 V dc
J10-12
+5 V dc
J10-13
+5 V dc
J10-14
+5 V dc
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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