Print Quality Defect Locator Chart - Lexmark 13P0195 - C 750dn Color Laser Printer Service Manual

d.
Turn on the printer and note the new error codes.
•
•
•
For example, the printer originally displays the printhead error code 108 (yellow). After switching the
signals using the diagnostic tool, the printer displays the printhead error code 106 (cyan).
For 10x errors
For 11x errors
For errors 169–175
Not commonly seen
4.
Remove the printhead diagnostic tool.
5.
The problem is in either the printhead cables or the printhead. Replace the printhead cables.
If the problem remains, replace the printhead.
6.
Perform the printhead adjustments.

Print quality defect locator chart

The print quality locator chart is copied below, but the tool is a transparent sheet available with this printed book.
Use the tables and rulers to determine the source of repeating defects.
Using the chart
Measure repeating horizontal lines from the reference lines at the top to determine what may have caused the
lines to form in that pattern. Be sure to use portrait orientation for the test file.
Rollers
Component
description
Charge roll
PC drum
PC cleaner
Developer roll
TAR
Toner meter
Cart auger
First transfer roll
Second transfer roll
ITU drive/backup rolls
ITU reverse roll
Fuser hot roll
Fuser BUR
If an automatic calibration begins, 36 Printer Service Required may appear. The printhead and
RIP board are working correctly and the printhead cable connections should be checked. Press
Go to clear the error.
If the error code remains the same, replace the RIP board. If that solves the problem, you are
finished.
If the printer displays a different printhead error code, which indicates another color, the
printhead or the printhead cables are defective. See the table below for printhead codes.
Component
Cartridge
ITU
Second
transfer roll
ITU
ITU
Fuser
Printhead error codes
Yellow Cyan
108 106
117 115
175 171
176 172
Defect period
Planes
affected
mm
One 38.7
One 96.8
One 96.8
One 47.9
One 46.4
One 1092.2
One 349.9
One 53.2
All 59.4
All 101.0
All 50.5
All 147.0
All 147.0
Printhead error codes
Magenta Black (K)
107 109
116 114
173 169
174 170
inches
1.5
3.8
3.8
1.9
1.8
43
13.8
2.09
2.34
3.98
1.99
5.79
5.79
Diagnostic aids
5060-00x
3-3