2-94
Service Manual
5060-00
x
3
Press the TMC pin in the cyan cartridge contact
assembly make sure it actuates the TMC switch on the
developer HVPS. When the TMC pin is pressed you
hear a
click
when the switch actuates. Check for
mechanical interference between the contact block and
the developer HVPS.
Note:
You may need to turn the printer off to hear the
click
.
Does the cyan TMC switch on the developer HVPS
board actuate properly when the TMC pin is pressed?
Replace the
cartridge.
Go to step 4
4
Check the developer HVPS board to make sure it is not
cracked or broken.
Is the developer HVPS board cracked or broken?
Replace the
developer HVPS
board assembly.
Go to step 5
5
Check the mounting of the developer HVPS. Make sure
the screws that mount the power supply are properly
tightened and the board is positioned and mounted
correctly.
Is the developer HVPS mounted correctly?
Go to step 6
If the board is
incorrectly
installed, install it
correctly. Make
sure all the
mounting screws
are tightened.
Recheck the
printer to see if a
940 error is still
displayed.
6
Make sure the developer HVPS cable is correctly
installed on the developer board assembly.
Is the cable correctly installed?
Go to step 7
Correctly connect
the cable.
7
Make sure the developer HVPS cable is correctly
installed at J20 on the engine board.
Is the cable properly installed?
Go to step 8
Correctly connect
the cable.
8
Check the voltage at connector J20-9 on the engine
board while pressing the cyan TMC pin in the cartridge
contact assembly.
Does the voltage change when the pin is pressed?
Replace the engine
board assembly.
Go to step 9
9
Check the voltage at connector J20-9 when the cyan
TMC switch is pressed.
Does the voltage measure approxi3.3 V dc?
Go to step 10
Go to step 11
10
Check the developer HVPS to engine board cable for
damage, broken connections, or wire and shorts
between adjacent pins.
Are there any signs of damage to the cable?
Replace the cable.
Replace the
developer HVPS
board assembly.
11
Disconnect the developer HVPS cable from connector
J20 on the engine board. Measure the voltage on
connector J20-9 on the engine board.
Does the voltage measure approximately 0 V dc?
Replace the engine
board assembly.
Replace the
developer HVPS
and developer
HVPS to engine
board cable.
Step
Actions and questions
Yes
No
Summary of Contents for 13P0195 - C 750dn Color Laser Printer
Page 14: ...xiv Service Manual 5060 00x ...
Page 15: ...Laser notice xv 5060 00x ...
Page 16: ...xvi Service Manual 5060 00x ...
Page 34: ...1 14 Service Manual 5060 00x ...
Page 115: ...Diagnostic information 2 81 5060 00x Printer configuration diagrams for 24x paper jams ...
Page 237: ...Repair information 4 19 5060 00x 9 Remove the MPF swing arm assembly E E ...
Page 312: ...4 94 Service Manual 5060 00x ...
Page 313: ...Connector locations 5 1 5060 00x 5 Connector locations Locations Printer boards ...
Page 315: ...Connector locations 5 3 5060 00x Printer sensors ...
Page 316: ...5 4 Service Manual 5060 00x Cartridge contact assembly pin locations ...
Page 317: ...Connector locations 5 5 5060 00x Engine board cabling ...
Page 318: ...5 6 Service Manual 5060 00x RIP board cabling ...
Page 344: ...5 32 Service Manual 5060 00x HCOF system board ...
Page 350: ...7 2 Service Manual 5060 00x Assembly 1 Covers ...
Page 352: ...7 4 Service Manual 5060 00x Assembly 1 1 Covers ...
Page 354: ...7 6 Service Manual 5060 00x Assembly 2 Cartridge mounting ...
Page 356: ...7 8 Service Manual 5060 00x Assembly 3 Fuser 3 2 1 ...
Page 358: ...7 10 Service Manual 5060 00x Assembly 3 1 Fuser web oiler 1 2 3 ...
Page 368: ...7 20 Service Manual 5060 00x Assembly 12 Multipurpose feeder MPF ...
Page 370: ...7 22 Service Manual 5060 00x Assembly 13 500 sheet integrated tray ...
Page 374: ...7 26 Service Manual 5060 00x Assembly 16 ITU drive assembly 2 4 1 5 3 5 ...
Page 376: ...7 28 Service Manual 5060 00x Assembly 17 ITU loading ...
Page 380: ...7 32 Service Manual 5060 00x Assembly 20 Cartridge drive assembly ...
Page 382: ...7 34 Service Manual 5060 00x Assembly 21 Electronics ...
Page 384: ...7 36 Service Manual 5060 00x Assembly 21 1 Electronics ...
Page 388: ...7 40 Service Manual 5060 00x Assembly 21 4 Electronics ...
Page 390: ...7 42 Service Manual 5060 00x Assembly 22 Electronic cabling engine board ...
Page 392: ...7 44 Service Manual 5060 00x Assembly 23 Electronic cabling RIP board ...
Page 396: ...7 48 Service Manual 5060 00x Assembly 26 Output expander ...
Page 398: ...7 50 Service Manual 5060 00x Assembly 26 1 Output expander ...
Page 400: ...7 52 Service Manual 5060 00x Assembly 27 5 bin mailbox ...
Page 402: ...7 54 Service Manual 5060 00x Assembly 27 1 5 bin mailbox ...
Page 404: ...7 56 Service Manual 5060 00x Assembly 28 500 sheet drawer option ...
Page 406: ...7 58 Service Manual 5060 00x Assembly 28 1 500 sheet tray option ...
Page 408: ...7 60 Service Manual 5060 00x Assembly 29 Duplex option ...
Page 410: ...7 62 Service Manual 5060 00x Assembly 29 1 Duplex option ...
Page 412: ...7 64 Service Manual 5060 00x Assembly 30 High capacity input tray HCIT ...
Page 414: ...7 66 Service Manual 5060 00x Assembly 30 1 High capacity input tray HCIT ...
Page 416: ...7 68 Service Manual 5060 00x Assembly 31 High capacity output finisher HCOF ...
Page 418: ...7 70 Service Manual 5060 00x Assembly 31 1 High capacity output finisher ...
Page 420: ...7 72 Service Manual 5060 00x Assembly 31 2 High capacity output finisher ...
Page 422: ...Service Manual 5060 0xx Assembly 32 High capacity output finisher cables ...
Page 426: ...7 78 Service Manual 5060 00x ...
Page 456: ...A 30 Service Manual 5060 00x ...
Page 458: ...B 2 Service Manual 5060 00x Print Menus Page two of two ...
Page 460: ...B 4 Service Manual 5060 00x Print Quality Pages Page 1 total of five ...
Page 461: ...Appendix B Print quality samples B 5 5060 00x Print Quality Pages Page 2 total of five ...
Page 462: ...B 6 Service Manual 5060 00x Print Quality Pages Page 3 total of five ...
Page 463: ...Appendix B Print quality samples B 7 5060 00x Print Quality Pages Page 4 total of five ...
Page 464: ...B 8 Service Manual 5060 00x Registration Quick Test ...
Page 466: ...B 10 Service Manual 5060 00x Printhead alignment test page yellow two of three ...
Page 468: ...B 12 Service Manual 5060 00x Print Line Len page ...
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