Diagnostics Mode; Entering Diagnostics Mode; Diagnostic Mode Menus - Lexmark C78x Service Manual

Diagnostics mode

To run the printer diagnostic tests described in this chapter, put the printer in Diagnostics mode.

Entering Diagnostics mode

To enter the Diagnostics Mode:
1.
Turn off the printer.
2.
Press and hold
3.
Turn on the printer.
4.
Hold the buttons about 10 seconds (until the clock face appears).

Diagnostic mode menus

REGISTRATION
Top Margin
Bottom Margin
Left Margin
Right Margin
Quick Test
ALIGNMENT
Cyan
Yellow
Magenta
Factory Scanner
Factory Manual
Drift Sensors
MISC TESTS
Toggle ITU
Belt Tracking
Printhead Inst
PRINT TESTS
Tray 1
Tray 2 (If installed)
Tray 3 (if installed)
Tray 4 (If installed)
MP Feeder
Prt Quality Pgs
and .
See "REGISTRATION" on page 3-10
See "Quick Test" on page 3-11
See "ALIGNMENT MENU" on page 3-11
See "Drift Sensors" on page 3-12
See "Toggle ITU" on page 3-13
See "Belt Tracking (ITU 4th point adjustment)" on page 3-13
See "Printhead Inst" on page 3-14
See "PRINT TESTS" on page 3-14
See "Print Quality Pgs" on page 3-15
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Diagnostic aids