Lexmark C792de, Service Manual

Page: 187 / 630

Diagnostic aids
3-9
5062
Exiting the Diagnostics mode
Select Exit Diags to exit the Diagnostics mode and return to the printer home screen.
DUAL DIODE ADJUST
Adjust the dual diode alignment before adjusting the Registration or Alignment settings.
1.
From the Diagnostics menu, navigate to:
DUAL DIODE ADJUST > Diode Alignment Page
An alignment page prints.
2.
Follow the instructions on the alignment page and use the touch screen to adjust the dual diode alignment
for Black, Cyan, Magenta, and Yellow.
3.
Reprint the alignment page and adjust the settings as needed.
REGISTRATION
Note: Before adjusting the Registration or Alignment settings, you must adjust the dual diode alignment. See
“DUAL DIODE ADJUST” on page 3-9 .
Use REGISTRATION to align the black image on the page. Use Alignment to align the individual colors. The
black image should be aligned before the individual colors are aligned.
To set Registration:
1. Print the Quick Test page:
a.
From the Diagnostics menu, navigate to:
REGISTRATION > Quick Test
Par 1 Strobe Adj (if installed) See “Par 1 Strobe Adj” on page 3-23 .
EP SETUP
EP Defaults See “EP Defaults” on page 3-23 .
Fuser Temp See “Fuser Temp” on page 3-23 .
DC Charge Adjust See “DC Charge Adjustment” on page 3-23 .
Dev Bias Adj See “Dev Bias Adj” on page 3-23 .
Transfer Adjust See “Transfer Adjust” on page 3-23 .
Op Point Boost See “Op Point Boost” on page 3-23 .
REPORTS
Menu Settings Page
EVENT LOG
Display Log See “Display Log” on page 3-24 .
Print Log See “Print Log” on page 3-24 .
Clear Log See “Clear Log” on page 3-24 .
Exit Diags