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Troubleshooting
White Spots Appear
C0JS-09L
Troubleshoot by checking the following steps:
Step 1: Checking the Paper(P. 456)
Step 2: Checking the Toner Cartridges(P. 456)
Step 3: Checking the Occurrence of White Spots(P. 456)
Step 4: Checking the Usage Environment of the Machine(P. 457)
Step 1: Checking the Paper
Are You Using Appropriate Paper?
Check whether the paper in the machine is usable, and replace it with appropriate paper, as needed.
Usable Paper(P. 15)
Loading Paper(P. 101)
Are You Using Paper That Has Absorbed Moisture?
Check the precautions, and replace the paper with dry paper.
Precautions When Handling Paper(P. 19)
Loading Paper(P. 101)
Step 2: Checking the Toner Cartridges
Check the Remaining Amount of Toner in the Toner Cartridges.
Check the remaining amount of toner in the toner cartridges, and replace any toner cartridges, as needed.
Checking the Remaining Amount of Consumables(P. 418)
Replacing the Toner Cartridges(P. 412)
* Depending on the usage condition of the machine, the actual remaining amount of toner may be lower than
indicated or the parts may be deteriorated. If the condition persists even after replacing the toner cartridge
indicated to have a low amount of toner, it is recommended to replace the other toner cartridges as well.
Step 3: Checking the Occurrence of White Spots
Do White Spots Occur on the Leading Edge of the Paper?
This symptom may occur when printing on thin paper. Setting [Correct Void] to [Mode 1] may solve the
problem. If that does not work, select [Mode 2].
[Home] screen on the control panel
[Menu]
[Adjustment/Maintenance]
[Adjust Image
Quality]
[Special Processing]
[Correct Void]
[Mode 1] or [Mode 2]
* When this setting is enabled, the print quality may be affected.
Does Uneven Print Density Occur in a Way That the Print Looks Like a Water Drops
Pattern?
Setting [Reduce Formation of Waterdrop Pattern] to [On] may solve the problem. If you set to [On], print quality
may be affected.
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