4.3 Items to Be Confirmed Before Image Quality Troubleshooting
Print Quality Problems
Customers may need your help determining the cause of print quality issues such as streaking, fading,
or dropouts. Here are some questions that may help you determine why your customer's printer is not
printing optionally. First, confirm the following items to understand customer's operating condition.
1) Does your customer's print media fall within the Printer Media Guidelines? (Refer to "Printer Media
2) Is there enough toner?
3) Has the printer been cleaned recently?
Checking printer condition
Low toner can cause print quality problems such as fading, streaking, white lines, or dropouts. Have
your customer print a small document from a different application to replicate the problem and verify
the amount of toner available for printing. When your customers print a document, the Laser Printer
Status Monitor should display a dialog box that estimates the amount of toner left in the cartridge.
If the toner is low, your customers can sometimes extend the cartridge life by removing the cartridge
from the printer, gently shaking it from side-to-side, and replacing it (Rocking the toner cartridge from
side-to-side loosens toner that may get stuck).
Paper, toner, and dust particles can accumulate inside the printer and cause print quality problems,
such as smearing or toner specks. Clean inside the printer to prevent these problems.
Prior checks before troubleshooting
Check the following items if any print quality problems occur before going to each troubleshooting.
Those actions may solve problems easily and simply.
If the any problems below have occurred, check and take actions described in each item.
1) Color is out of alignment:
a)Clean inside of the printer.
b)If you install a new black cartridge and a PHD ASSY cleaning has not been done, this problem
will happen. Clean inside of the printer.
2) Print is too light
a) The toner may be low. Confirm the amount of the toner and change the toner cartridges if nec-
b) Set the Toner Saving Mode check box to off in the [Advanced] tab on the printer driver.
c)If you are printing on an uneven print surface, change the Paper Type settings in the Tray Set-
d)Verify that the correct print media is being used.
e) The PHD ASSY needs to be replaced. Change the PHD ASSY.
3) Toner smears or print comes off page:
a)If you are printing on an uneven print surface, change the Paper Type settings in the Tray Set-
b)Verify that the print media is within the printer specifications. (Refer to "Printer Media Guide-
1 - 312
Chapter 1 Troubleshooting