Print quality service checks
Note: Ensure the cover closes tightly. A gap in the opening may allow light to expose the photoconductor, resulting in a ‘dirty’ print. Extreme environmental conditions, temperatures, and humidity will affect the print quality.
Using print quality test pages
To help isolate print quality problems, like streaking, print test pages using the print quality test pages. To print the print quality test pages:
1.Enter Configuration Menu.
a.Turn off the printer.
b.Turn on the printer while pressing and holding 
and 
.
c.Release the buttons when Performing Self Test displays.
d.The message CONFIG MENU displays.
e.Press 
to Prt Quality Pgs.
f.Press 
to print the pages.
Four pages print to help evaluate print quality. The first page has various fonts and a graphic, the second page is gray with graphics, the third page is black, and the last page is blank.
2.Use the test pages to isolate problems such as light or toner streaks. See “POST symptom table” on page
3.Press 
to Exit Config Menu and press 
.
To exit configuration, turn the printer off.
Note: Refer to the print defects guide at the end of the manual for repeating defects.
Blank page
FRU | Action |
|
|
Toner cartridge (not a | Remove the toner cartridge, and gently shake it to evenly distribute the toner. |
FRU) | Check for cartridge damage. |
|
Blank pages can be caused by a defective printhead assembly,
LVPS/HVPS, or controller board.
| • | Printhead errors typically result in printer service errors unless there is blockage of the |
|
| beam or dust on the lens. Check the lens and opening for blockage. |
| • | Blank pages typically are caused by the PC roll not being properly charged. Try a |
Printhead |
| different PC kit. |
LVPS/HVPS | • | With the cartridge out, check the spring loaded contacts on the right side for free motion. |
Controller board |
| None should be ground except for #4 contact from the front. |
Unplug the printer, and check the cable continuity between the LVPS/HVPS connector marked OPC (at CN202) and the corresponding wire form (spring) found about 14 mm above and to the right of the transfer roll gear.
•If there is not continuity, then call the next level of service. Try a different toner cartridge and PC kit.
•If those fail, then replace the LVPS/HVPS, controller board, or the printhead in that order.
Also, see “Solving print quality problems” on page
