Lexmark CS748de - Print Tests

3-12 Service Manual
5026
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Print Tests
Input source tests
The purpose of the diagnostic Print Tests is to verify that the printer can print on media from each of the installed
input options. The contents of the Print Test Page varies depending on the media installed in the selected input
source.
Check each Test Page from each source to assist in print quality and paper feed problems.
To run the Print Test Page:
1. Select PRINT TESTS from the Diagnostics Menu.
2. Select the media source.
Tray 1
Tray 2 (if installed)
Tray 3 (if installed)
Tray 4 (if installed)
Tray 5 (if installed)
Multi-Purpose Feeder (if installed)
3. Select Single or Continuous.
• If Single is selected, a single page is printed.
• If Continuous is selected, printing continues until is pressed to cancel the test.
Cam Forward Engage motor couplings • Runs to stall position
• Locks door
• Enables print operations
Reverse NOP Disengage motor couplings • Runs to stall position
• Unlocks door
• Disables printing
COD Forward Engage color cartridges • Runs to stall position
• Disables color print operations
Reverse NOP Disengage color cartridges • Runs to stall position
• Enables color printing
Motor Direction Action Notes