Lexmark X734DE - Printhead Tests; Device Tests

3-22 Service Manual
7526
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Printhead Tests
Mirror Motor Test
1.
Touch PRINTHEAD TESTS in Diag Menu.
2. Touch Mirror Motor Test.
The panel displays Mirror Motor Test—Motor Running….
After the test completes, the panel displays either Pass or Fail.
To stop the test, press Stop ().
Servo Laser Test
1.
Touch PRINTHEAD TESTS in the Diag Menu.
2. Touch Servo Laser Test.
The panel displays Servo Laser Test—Motor Running…. After the test completes, the panel displays either
Pass or Fail.
To stop the test, press Stop ().
Device Tests
These tests only appear if the flash or disk option is installed.
Quick Disk Test
This test performs a non-destructive read/write on one block per track on the disk. The test reads one block on
each track, saves the data, and then proceeds to write and read four test patterns to the bytes in the block. If the
block is good, the saved data is written back to the disk.
To run the Quick Disk Test:
1. Touch DEVICE TESTS in Diag Menu.
2. Touch Quick Disk Test.
• The power indicator blinks while the test is in progress.
• Quick Disk Test/Test Passed is displayed if the test passes and the power indicator turns on solid.
• Quick Disk Test/Test Failed is displayed if the test failed and the power indicator turns on solid.
You cannot stop the test while it is running, but when it is complete, press Stop ( ) to return to DEVICE
TESTS.
Dynamic
sensors
(continued)
M Toner Open/Closed Remove the magenta toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
C Toner Open/Closed Remove the cyan toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
Y Toner Open/Closed Remove the yellow toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
TPS (toner patch
sensor)
Open/Closed Open the front access door. Slip a piece of
paper between the TPS and the transfer
module. The sensor should change state.
Bubble Open/Closed Open the front door. Activate the fuser entry
flag. The sensor should change state.
Sensors (continued)
Sensor type Sensor name Possible values Sensor activation