Print Quality Defect Locator Chart - Lexmark C752 Service Manual

5060-2XX

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
ITM drive roll
ITM reverse roll
Fuser hot roll
Fuser BUR
Metering rolls
Color charge roll short
NIP shock
NIP distances
Y-C-M-K cartridge spacing
K to second transfer roll
M to second transfer roll
C to second transfer roll
Y to second transfer roll
Meter 1 to second transfer
Meter 2 to second transfer
Meter 3 to second transfer
Meter 4 to second transfer
Second transfer to fuser
Fuser nip to first redrive
Fuser nip to exit sensor
Fuser nip to exit tray nip
3-4
Service Manual
Planes
Component
affected
One
One
One
Cartridge One
One
One
One
ITU One
Second All
transfer roll
ITU All
ITU All
All
Fuser
All
Reference Edge All
C, M, or Y cart C, M and Y
Defect period
mm Inches
101.0 3.98
144.6 5.69
245.6 9.67
346.6 13.65
447.6 17.62
164.8 6.49
126.4 4.98
86.4 3.40
51.4 2.02
319.4 12.57
50.0 1.97
58.2 2.29
420.3 16.55
Defect period
mm inches
38.7 1.5
96.8 3.8
96.8 3.8
47.9 1.9
46.4 1.8
1092.2 43
349.9 13.8
53.2 2.09
59.4 2.34
101.0 3.98
50.5 1.99
147.0 5.79
147.0 5.79
47.0 1.85
101.0 3.98