Streaks Appear

Troubleshoot by checking in the following order:

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
Loading Paper

Step 2: Checking the Platen Glass

Is the Platen Glass Dirty?
Clean the platen glass or rear side of the feeder if dirty.
Cleaning the Platen Glass
Cleaning the Feeder

Step 3: 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
Replacing the Toner Cartridges
* 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 4: Checking the Usage Environment of the Machine

Are You Using the Machine in an Environment with Sudden Temperature Changes?
Sudden temperature changes can create condensation, which can result in faded or blurry images and text. Setting [Control Condensation] to [On] may solve the problem.
[Home] on the operation panel [Menu] [Adjustment/Maintenance] [Maintenance] [Control Condensation] [On]
* During condensation removal, a blank sheet of paper may be output without being printed correctly. If you set this to [On], you can set whether to restrict printing.
* If you set this to [On], you must keep the machine ON to continuously remove the condensation. The Auto Shutdown Time setting is disabled.
Is the Machine Installed in a Location Subject to Strong Wind Such as from an Air Conditioner?
If so, adjust the air direction and volume of the air conditioner.
If that does not work, setting [Switch Paper Feed Method] to [Print Side Priority] may improve the problem.
[Home] on the operation panel [Menu] [Function Settings] [Common] [Paper Feed Settings] [Switch Paper Feed Method]  [Print Side Priority]
* When you select [Print Side Priority], the printing speed for 1-Sided printing will decrease.

Step 5: Checking the Maintenance Status

Have You Cleaned the Fixing Assembly?
These symptoms may occur when the fixing assembly is dirty. In this case, clean the fixing assembly. Cleaning the Fixing Assembly
Have You Cleaned the Transfer Belt?
These symptoms may occur when the transfer belt is dirty. In this case, clean the transfer belt. Cleaning the Transfer Belt
84CS-0LL