Fixing Print Quality Issues; Initial Print Quality Check - Lexmark MX61 Series Service Manual

Safe Mode engine features
Simplex printing only
Ignore duplex sensor
Ignore bin full sensor
Print at narrow media operating
point
Ignore narrow media sensor
Ignore all input options
Ignore all output options
Use large interpage gaps

Fixing print quality issues

•
"Initial print quality check" on page 43
•
"Gray background or toner fog check" on page 44
•
"Repeating defects check" on page 45
•
"Blank pages check" on page 45
•
"Solid black pages check" on page 46
•
"Shadow images check" on page 47
•
"Skewed print check" on page 48
•
"Streaked horizontal or vertical lines check" on page 50
•
"Toner smear check" on page 50
•
"Toner specks check" on page 51
The symptoms described in this chapter might require replacement of one or more CRUs (Customer
Replaceable Units) designated as supplies or maintenance items, which are the responsibility of the customer.
With the customer's permission, you might need to install a toner cartridge.

Initial print quality check

Before troubleshooting specific print problems, complete the following initial print quality check:
•
Use only genuine Lexmark supplies. Third-party supplies may cause print quality problems.
•
The printer must be in a location that follows the recommended operating environment specifications.
See "Operating environment" on page
•
Check the life status of all supplies. Any supply that is low should be replaced.
•
Load 20‑lb plain letter or A4 paper. Make sure the paper guides are properly set and locked. From the
control panel, set the paper size and type to match the paper loaded in the tray.
Engine behavior
Will report that no duplexer is installed. Duplex print option will not be
Bin full messages will not be reported. Bin full messages will not occur.
Pages will be printed slower.
Narrow media will print without
restrictions.
Will report that only Tray 1 is installed. Only Tray 1 and the MPF will be
Will not report any installed finishing
options.
Pages will have large interpage gaps. N/A
484.
Diagnostic information
43
Control panel behavior
selectable.
N/A
N/A
selectable.
Finishing options will not be
selectable.
7016