Repair information
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Adjustments
Printhead alignment
Overview
When aligning the printhead, it is important to keep in mind that the printhead mounting screws should be initially
loose enough to just hold the printhead in the printer. This allows the pages to be printed that will be used to
align the black plane to the printer frame and also allows skew adjustment with the printhead alignment screw.
Once the black skew is adjusted, the mounting screws are fully tightened.
There is one printhead that houses the four color planes. The black plane is aligned to the printer, and the color
planes are internally aligned to black. Electrical alignment is done to fine tune the alignment of the color planes
to the black plane once the printhead is installed and skew is adjusted.
The first step in aligning the printhead is to loosen the printhead mounting screws, and to set the skew for black.
Note:
If you need to replace the printhead, see
“Printhead removal, installation, and adjustment” on
Printhead mechanical alignment
Skew (black)
1.
Disconnect the electrical cord to the printer.
2.
Disconnect the electrical cord to the outlet.
3.
Remove the transfer module and photoconductor units:
a.
Open the top access cover.
b.
Open the front access cover.
c.
Disconnect the transfer module cable (A).
d.
Press the two tabs (B) to release the front access cover assembly.
e.
Press the two tabs (C) on either side of the transfer module, and lift out the transfer module.
Note:
Leave the photoconductor units on the transport module when removing.
To avoid damaging the photoconductor drum, place the transfer module with the photoconductor
units on a clean surface. Never expose the photoconductor units to light for a prolonged period of
time. You can place a clean, dry cloth over the transfer module and photoconductor units until they
are required.
B
A
C
Summary of Contents for X734DE
Page 10: ...x Service Manual 7526 Go Back Previous Next...
Page 15: ...Notices and safety information xv 7526 Go Back Previous Next...
Page 16: ...xvi Service Manual 7526 Go Back Previous Next...
Page 22: ...xxii Service Manual 7526 Go Back Previous Next...
Page 254: ...3 58 Service Manual 7526 Go Back Previous Next Printer base...
Page 266: ...3 70 Service Manual 7526 Go Back Previous Next...
Page 324: ...4 58 Service Manual 7526 Go Back Previous Next 6 Grasp the auger shaft C and remove it C...
Page 482: ...4 216 Service Manual 7526 Go Back Previous Next 9 Remove the two screws G G 18B1236...
Page 495: ...Repair information 4 229 7526 Go Back Previous Next 5 Lift the cover from the ADF...
Page 572: ...5 2 Service Manual 7526 Go Back Previous Next Connectors System board...
Page 582: ...5 12 Service Manual 7526 Go Back Previous Next...
Page 588: ...6 6 Service Manual 7526 Go Back Previous Next...
Page 594: ...7 6 Service Manual 7526 Go Back Previous Next Assembly 3 Right 1 2 3 4 5 6...
Page 596: ...7 8 Service Manual 7526 Go Back Previous Next Assembly 4 Rear...
Page 604: ...7 16 Service Manual 7526 Go Back Previous Next Assembly 9 Automatic document feeder ADF...
Page 606: ...7 18 Service Manual 7526 Go Back Previous Next Assembly 10 Flatbed scanner...
Page 612: ...7 24 Service Manual 7526 Go Back Previous Next Assembly 14 Options and features...
Page 614: ...7 26 Service Manual 7526 Go Back Previous Next...
Page 622: ...I 8 Service Manual 7526 Go Back Previous Next...
Page 626: ...I 12 Service Manual 7526 Go Back Previous Next...