High Frequency Bands - Lexmark C950 Service Manual

5058-030

High frequency bands

Step
Check the four PC cartridges for proper installation.
1
Check the PC cartridge connections.
Are the PC cartridge connections free of excess
wear and contamination?
Replace the four developer housings and four
2
developer carriers. Go to
removal" on page
removal" on page
removal" on page
removal" on page
removal and replacement" on page
Does the problem remain?
Replace the printhead. Go to
3
removal" on page
Does the problem remain?
Check the upper printer engine PCBA for proper
4
connectivity. Disconnect and reconnect all appropriate
cables.
Replace the upper printer engine PCBA.
Go to
page 4-181.
Perform a print test. Go to
page 3-22.
Does the problem continue?
Service Manual
2-246
Check
"Developer housing (C)
4-45, "Developer housing (K)
4-51, "Developer housing (M)
4-56, "Developer housing (Y)
4-62,and "Developer carrier
"LED printhead
4-96.
"Upper printer engine PCBA removal" on
"PRINT TESTS" on
Go to step 2.
Go to step 3.
4-42.
Go to step 4.
Replace the RIP
PCBA.
Go to
"RIP
PCBA removal"
on page
Yes No
Correct and
clean
contaminated
pins, or replace
the appropriate
PC cartridge or
connector.
Problem
resolved.
Problem
resolved.
Problem
resolved.
4-144.
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