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Service Manual
7526
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Print quality—blurred or fuzzy print
Blurred or fuzzy print is usually caused by a problem in the EP drive assembly or in the transfer module. Check
the EP drive assembly and transfer module for correct operation.
Blurred print can also be caused by incorrect feeding from one of the input paper sources, paper trays, or duplex
paper path.
Check the high voltage spring contacts to ensure they are not bent, corroded, or damaged. Replace as
necessary.
Print quality—half-color page
A photoconductor unit is not properly seated. Reset the specific photoconductor unit.
Print quality—horizontal banding
5
Turn off the printer and check the continuity of
the HVPS cable.
Go to step 7.
Replace the cable
assembly.
Is there continuity?
6
Replace the HVPS. See
power supply (HVPS) removal” on
page 4-120
Did this fix the problem?
Problem resolved.
Go to step 8.
7
Replace the printhead. See
removal, installation, and adjustment” on
page 4-147
Did this fix the problem?
Problem resolved.
Replace the system board.
Step
Questions / actions
Yes
No
1
Measure the distance between repeating
bands.
Is the distance between bands either 27 or
36mm?
Replace the print cartridge.
Replace the
photoconductor unit. See
“Printhead removal,
installation, and
adjustment” on
page 4-147
.
Step
Questions / actions
Yes
No
Pin 24
Pin 23
Pin 1
Pin 2
Pin 2
Pin 1
Pin 23
Pin 24
Содержание X734DE
Страница 10: ...x Service Manual 7526 Go Back Previous Next...
Страница 15: ...Notices and safety information xv 7526 Go Back Previous Next...
Страница 16: ...xvi Service Manual 7526 Go Back Previous Next...
Страница 22: ...xxii Service Manual 7526 Go Back Previous Next...
Страница 254: ...3 58 Service Manual 7526 Go Back Previous Next Printer base...
Страница 266: ...3 70 Service Manual 7526 Go Back Previous Next...
Страница 277: ...Repair information 4 11 7526 Go Back Previous Next d Touch Quick Test A page similar to this one prints...
Страница 293: ...Repair information 4 27 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...
Страница 300: ...4 34 Service Manual 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...
Страница 316: ...4 50 Service Manual 7526 Go Back Previous Next 7 Remove the six screws G 8 Remove the screw H in front...
Страница 324: ...4 58 Service Manual 7526 Go Back Previous Next 6 Grasp the auger shaft C and remove it C...
Страница 328: ...4 62 Service Manual 7526 Go Back Previous Next 5 Remove the two screws C 6 Remove the cartridge cooling fan C...
Страница 359: ...Repair information 4 93 7526 Go Back Previous Next 14 Remove the two screws O on the inside O P...
Страница 360: ...4 94 Service Manual 7526 Go Back Previous Next 15 Remove the seven screws R securing the EP drive R R First R R...
Страница 398: ...4 132 Service Manual 7526 Go Back Previous Next 3 Insert the motor into the frame 4 Replace the screws C...
Страница 422: ...4 156 Service Manual 7526 Go Back Previous Next f Touch Quick Test A page similar to this one prints...
Страница 464: ...4 198 Service Manual 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...
Страница 482: ...4 216 Service Manual 7526 Go Back Previous Next 9 Remove the two screws G G 18B1236...
Страница 495: ...Repair information 4 229 7526 Go Back Previous Next 5 Lift the cover from the ADF...
Страница 513: ...Repair information 4 247 7526 Go Back Previous Next 5 Grasp the cover on the lower right and pull up...
Страница 571: ...Connector locations 5 1 7526 Go Back Previous Next 5 Connector locations Locations printer base...
Страница 572: ...5 2 Service Manual 7526 Go Back Previous Next Connectors System board...
Страница 582: ...5 12 Service Manual 7526 Go Back Previous Next...
Страница 588: ...6 6 Service Manual 7526 Go Back Previous Next...
Страница 592: ...7 4 Service Manual 7526 Go Back Previous Next Assembly 2 Front 5 2 3 4 7 9 11 A B D 8 10 12 E 13 C G F F 1 6...
Страница 594: ...7 6 Service Manual 7526 Go Back Previous Next Assembly 3 Right 1 2 3 4 5 6...
Страница 596: ...7 8 Service Manual 7526 Go Back Previous Next Assembly 4 Rear...
Страница 602: ...7 14 Service Manual 7526 Go Back Previous Next Assembly 8 Covers scanner 6 8 9 10 5 7 11 14 1 2 13 3 4 12...
Страница 604: ...7 16 Service Manual 7526 Go Back Previous Next Assembly 9 Automatic document feeder ADF...
Страница 606: ...7 18 Service Manual 7526 Go Back Previous Next Assembly 10 Flatbed scanner...
Страница 612: ...7 24 Service Manual 7526 Go Back Previous Next Assembly 14 Options and features...
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