Drift Sensor Check; Top Fine Margin Adj - Lexmark C752 Service Manual

5060-2XX
Alignment Test Page. Buttons are not active when the Alignment Test Page is printing. Also the thermal
drift sensors will be calibrated at this time
Note: The Alignment Test Pages should be printed on A4 or Letter paper.
The printer tries to print the test page from the default paper source, however if the default source only
supports envelopes, then the page prints from Tray 1.
10.
To exit the Alignment Menu press Return.

Drift Sensor Check

This check is used to display the status of the thermal system used to compensate for printhead drift.
The following screen is displayed when the test is selected:
Com=aaaa
C=cc
Values:
If:
Com=
Com=
M=, C=, Y=, or K=
M=, C=, Y=, or K=
M=, C=, Y=, or K=
M=, C=, Y=, or K=
If Com=Err, replace the system board. See
If a number, C, Y, or K=OP, or SH, check the following:
1.
Check the cable of the appropriate thermistor (cyan, magenta, yellow, or black) to make sure it is installed
correctly to the system board and to the thermistor board. If correct, go to step 2.
2.
Check the continuity of the appropriate cable. Replace the cable if there is no continuity. If continuity is
correct, go to step 3.
3.
Replace the appropriate thermistor assembly. If this does not fix the problem, replace the system board.
To exit the test, press Return or Stop.

Top Fine Margin Adj

Do not change this setting without consulting your next level of support.
3-16
Service Manual
M=bb
Y=dd K=ee
Value: Description:
Err RIP to A/D communication error
Good Communication is good
OP Open thermistor error
SH Short thermistor error
RA Range error
Number Detected temperature in Celsius of last
reading. Indicates the system is functioning
properly.
"System board" on page 4-67.