Lexmark X543 Service Manual

Diagnostic aids3-19
Lexmark confidential until announce7525xxx
Printer Setup
Defaults
US/Non-US defaults changes whether the printer uses the US factory defaults or the non-US factory defaults. 
The settings affected include paper size, envelope size, PCL symbol set, code pages, and units of measure.
Warning:  Changing this setting resets the printer to factory defaults, and data may be lost. It cannot be undone.
Page Counts
You can view, but not change any of the three counts displayed under PAGE...

3-20Service Manual 7525xxxLexmark confidential until announce
Unless the menu is in DIAGNOSTICS, Check Config ID displays. 
To set the configuration ID:
1.Select PRINTER SETUP from DIAGNOSTICS, and press Select ().
2.Select Configuration ID, and press Select ().
The current value for Configuration ID 1 appears with the left character or digit underlined.
3.Enter the Configuration ID 1.
Change the left character or digit first.
To change a character or digit, press   to decrease or   to increase the...

Diagnostic aids3-21
Lexmark confidential until announce7525xxx
Reset Fuser Count
Resets the fuser count value to zero. The Event Log records each time that a user executes the Reset Fuser 
Count operation. See “Event Log” on page 3-32 for more information. This setting appears only if the 
Maintenance Warning and Intervention function is enabled in the printer Configuration ID.
To reset the fuser count:
1.Select Printer Setup from Diag Menu, and press Select ().
2.Select Reset Fuser Cnt, and press Select...

3-22Service Manual 7525xxxLexmark confidential until announce
To enter the value:
1.Select TPS SETUP from Diag Menu, and press Select ().
2.Select Right or Left, and press Select ().
TPS Right 1-16 or TPS Left 1-16 appears above a blinking 0 in the left position.
3.To enter a character or digit:
a.press   to decrease or   to increase the blinking value.
b.Pause for several seconds without pressing any buttons. The blinking value becomes solid. 
If the value is incorrect, use Back ( ) to go back and...

Diagnostic aids3-23
Lexmark confidential until announce7525xxx
Event Log
Display Log
The event log provides a history of printer errors. It contains the 12 most recent errors that have occurred on the 
printer. The most recent error displays in position 1, and the oldest error displays in position 12 (if 12 errors have 
occurred). If an error occurs after the log is full, the oldest error is discarded. Identical errors in consecutive 
positions in the log are entered, so there may be repetitions. All 2xx...

3-24Service Manual 7525xxxLexmark confidential until announce
The printed event log can be faxed to your next level of support for verification or diagnosis.
To print the event log:
1.Select EVENT LOG from DIAGNOSTICS, and press Select ().
2.Select Print Log, and press Select ().
press Back ( ) to return to EVENT LOG. 
Clear Log
Use Clear Log to remove the current information in the Event Log. This affects both the viewed log and the 
printed log information.
1.Select Clear Log from the Event Log menu,...

Diagnostic aids3-25
Lexmark confidential until announce7525xxx
Scanner Tests
ASIC Test
This test initiates a scan of the scanner ASIC’s memory.
While this test is executing ASIC Test Running is displayed. When the test is complete, ASIC Test Passed is 
displayed if the ASIC memory is ok. ASIC Test Failed is displayed if the test fails. press the Back or Stop buttons 
to clear the display message
Feed Test
This test executes a continuous feed test from ADF or flatbed.
Note:  Neither test produces printed...

3-26Service Manual 7525xxxLexmark confidential until announce
ADF paper present sensor test
This test should be used if the ADF fails to feed paper when a scan is performed. To test this sensor perform the 
following steps:
1.In the sensor test menu, press  or   to scroll to the ADF paper present test.
2.press Select ().Starting Test displays. ADF Paper: Closed displays. 
3.press the ADF paper present sensor actuator (A) the top of the ADF unit. ADF Paper: Open should display if 
the sensor is working...

Diagnostic aids3-27
Lexmark confidential until announce7525xxx
FB Cover closing sensor test
This test verifies the functionality of the FB cover closed sensor. To test this sensor. perform the following steps:
1.In the sensor test menu, press  or   to scroll to the FB Cover closing sensor test.
2.press Select (). Starting Test displays. FB Cover: Closed displays.
3.Lift the flatbed cover, and depress the FB cover actuator (A).
4.FB Cover: Open should display if the sensor is working properly.
5.press...

3-28Service Manual 7525xxxLexmark confidential until announce
Sensor 1 test
This test verifies the functionality of scan sensor 1. To test this sensor. perform the following steps:
1.In the sensor test menu, press  or   to scroll to the Sensor1 test.
2.press Select (). Starting Test displays. Sensor 1: Closed displays.
3.Lift the ADF top cover, and close the ADF cover sensor by pressing down on the ADF sensor actuator (A) 
with a small flat blade screwdriver.
4.press the Sensor 1 actuator (B) located in...