Lexmark 4500-00 Series Service Manual page 158

4500–E320/E322
Print quality test pages
Go to the Special function menu
following:
1. Select three print quality test pages mode by double pressing
the operator panel button until the Ready/Data and Toner Low
lights are on.
2. Perform a long button press until all lights are on solid.
When a test page is printed from the special function menu:
•
The first diagnostic test page illustrates print registration marks
which aid the user during the print registration adjustment
process.
In addition, the first diagnostic test page also includes the
current value of some user default settings.
Note: The diagnostics test page is printed in english only.
•
The second page is gray.
•
The third page is black.
Note:
– Both pages are used by service and manufacturing to
evaluate print quality.
– Both diagnostic test pages can be printed from the print
quality test pages function.
Once the print quality test pages are printed, the printer enters either
normal printing or demo printing modes based on the NVRAM
power–on default flag.
3-22
Service Manual
(page 3-11) and perform the