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•
"Vertical light bands check" on page 55
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"Vertical dark bands check" on page 56
•
"Vertical dark streaks with print missing check" on page 58
•
"White streaks and voided areas check" on page 60
•
"Fine lines are not printed correctly (specifically Chinese characters) check" on page 63
•
"Clipped pages or images check" on page 64
•
"Compressed images appear on prints check" on page 66
•
"Incorrect margins on prints check" on page 67
•
"Toner rubs off check" on page 68
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"Toner specks appear on prints check" on page 69
Initial print quality check
Before troubleshooting print problems, perform the following:
•
Make sure that the printer is located in an area that follows the recommended operating environment
and power requirement specifications.
•
Check the status of supplies. Replace supplies that are low or empty.
•
Load 20‑lb (75-80 g/m
locked. From the control panel, set the paper size and type to match the paper loaded in the tray.
•
From the home screen, navigate to Settings > Troubleshooting > Print Quality Test Pages.
•
Print and keep the menu settings page. The original menu settings page will be used to restore the custom
settings if necessary.
•
Make sure that the print resolution is set to 4800 CQ and the toner darkness is set to 4 on the menu
settings page.
•
Check the toner cartridges for damage, and replace if necessary.
•
Make sure that the correct print driver is used to prevent print problems. If the wrong print driver is
installed, then incorrect characters could print and the copy may not fit the page correctly.
Gray background or toner fog check
Note: Before performing this print quality check, go to the control panel home screen and navigate to
Settings > Troubleshooting > Print Quality Test Pages, and then perform the Initial print quality check.
See
"Initial print quality check" on page
2
) plain letter or A4 paper. Make sure that the paper guides are properly set and
31.
Diagnostics and troubleshooting
31
7017-2xx, -4xx, -6xx
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