Lexmark Pro5500 Series, Service Manual

Page: 242 / 277

4-73
Service Manual
4447-20x
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Disassembly
Flow chart
Printhead removal
Warning: Do not interchange screws during reinstallation, as it may damage the machine. Always take note of
their original placement.
Warning: When replacing the printhead, be careful not to touch the printhead nozzle. It can damage and
contaminate the printhead assembly.
Note: Use the fixture to disassemble the printhead assembly.
1.
Remove the power supply. See “Power supply removal” on page 4-10 .
2.
Remove the duplex unit. See “Duplex unit removal” on page 4-11 .
3.
Remove the rear cover. See “Rear cover removal” on page 4-25 .
4.
Remove the left cover. See “Left cover removal” on page 4-26 .
5.
Remove the right cover. See “Right cover removal” on page 4-29 .
6.
Remove the control panel assembly. See “Control panel assembly removal” on page 4-35 .
7.
Remove the wireless card. See “Wireless card removal” on page 4-38 .
8.
Remove the card reader. See “Card reader removal” on page 4-40 .
9.
Remove the ADF/scanner assembly. See “ADF/Scanner assembly removal” on page 4-42 .
10.
Remove the midframe cover. See “Midframe cover removal” on page 4-50 .
11.
Remove the lower front cover. See “Front cover removal” on page 4-55 .
12.
Remove the alignment sensor. See “Alignment sensor removal” on page 4-57 .
13.
Remove the printhead carrier card. See “Printhead carrier card removal” on page 4-67 .
14.
Make sure that the printhead carrier is in the maintenance position.
15.
Lift the tube clip (A), and remove the two T2.6 x 7.6 pan head screws (B) securing the printhead carrier
card holder to the printhead.
B
A