Print Quality Pages (Prt Quality; Hardware Tests; Panel Test; Button Test - Lexmark W850n Service Manual

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Print quality pages (Prt Quality Pgs)
The purpose of this diagnostic function is to allow printing of the print quality test pages with the toner cartridge
lockout function disabled. The print quality pages consists of four pages. Page one contains a mixture of
graphics and text. Page two is gray with black boxes. Page three is solid black. The last page is blank. If duplex
is turned on, the pages are duplexed. The Print Quality Test pages are printed in English and print on the media
available in Tray 1.
To run the Print Quality Test Pages:
1.
Select PRINT TESTS from DIAGNOSTICS.
2.
Select Prt Quality Pgs from PRINT TESTS. The message Printing Quality Test Pages is
displayed.
Note: The print quality test pages can also be printed from the Configuration menu (CONFIG MENU), however
a cartridge must be installed with a machine class ID matching the machine class ID stored in NVRAM.
Additional diagnostic information may be printed on the pages when printing from DIAGNOSTICS.
The following is included in the DIAGNOSTICS version of the print quality pages:
•
Values from EP SETUP in DIAGNOSTICS, including:
Fuser temperature, warm up time, transfer, print contrast, and charge roll settings.
•
Contents of the EVENT LOG from DIAGNOSTICS.
•
Configuration information, including printer serial number, controller code level, engine code level, operator
panel code level, font versions, and cartridge information.
•
Default values for the QUALITY MENU settings used to print the pages.

HARDWARE TESTS

Select the following Hardware Tests from this menu:
•

Panel Test

•

Button Test

•
DRAM Test
•
CACHE Test
•
Parallel Wrap (if available)
•
Serial Wrap (if available)
Panel Test
This test automatically toggles all pixels of the operator panel through every contrast level beginning with the
darkest and on to the brightest. This test continues until you press Stop (
Button Test
The Button Test verifies the operation of the buttons on the operator panel. When you select Button Test, a
diagram of the operator panel appears on the panel. When you press a button on the operator panel, the "X"
appears on the corresponding diagram. When you release the button, the "X" disappears. Pressing Back (
or Stop ( ) cancels the test.
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Options Service Manual
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