Lexmark W812 - Spot Deletions Service Check

Diagnostic Information 2-27
4022-XXX
Spot Deletions Service Check
There are areas of the image that are extremely light or are missing entirely. These
missing areas form non-uniform spots that are localized to small areas of the page.
THE PRINTER DISPLAYS NO ERROR CODE.
4 FUSER INSPECTION
Generate another Test Print and switch off printer power when
the print is halfway through the Fuser.
Open the Top Cover and remove the Toner Cartridge.
Examine the paper areas before the image enters the Fuser
and after the image exits the Fuser.
Is the image on the paper normal before it enters the
Fuser, but there are horizontal streaks visible when it exits
the Fuser?
Replace the
Fuser
Assembly. Go
to “HVPS
Cover
Removal” on
page 4-14.
Go to step 5
5 RIP CARD ASSEMBLY REPLACEMENT
Go to “RIP Controller Card Removal” on page 4-34.
Are the horizontal streaks gone?
Problem
solved
Go to step 6
6 HVPS REPLACEMENT
Replace the HVPS. Go to “HVPS Removal” on page 4-13.
Are the horizontal streaks gone?
Problem
solved
Go to step 7
7 The following printer FRUs and areas are associated with this
specific problem. One or more of these FRUs or areas may
have failed partially or completely. If you cannot isolate this
problem using the steps in this service check, replace each
FRU or troubleshoot each area listed below, one at a time, until
you isolate and solve the problem.
• Engine Card Assembly - Go to “Engine Card Removal” on
page 4-10.
• Toner Cartridge Connector and Contact Springs
Step Actions and Questions Yes No
1 PAPER INSPECTION
Inspect the paper loaded in the paper trays.
Is the paper wrinkled, dimpled, or show any sign of having
a high moisture content?
Replace with
dry, newly
opened paper
Go to step 2
2 TONER CARTRIDGE REPLACEMENT
Install a new Toner Cartridge.
Are the spot deletions gone?
Problem
solved
Go to step 3
Step Actions and Questions Yes No