Kyocera TASKalfa 8353ci

12 Abnormal sound from inside the machine

Open and close operation failure of the toner supply opening of the toner container, the lack of toner amount, or the toner condensation

Step	Check description	Assumed cause	Measures
1	Checking the toner container	The torque increases due to the toner condensation.	Shake the toner container enough and reinstall it. Or, replace it.

13 Abnormal sound from inside the machine

Smudges / foreign objects adhesion or the toner condensation in the developer section

Step	Check description	Assumed cause	Measures
1	Checking the developer unit	The shaft or the bushing of the developer roller is dirty or foreign objects are on them.	Check if the developer roller rotates. If not rotating smoothly, clean the shaft or the bushing of the developer roller.
2	Checking the developer unit	The torque inside the developer unit increased due to the toner condensation, etc.	Clean the developer unit. Then, replace it if the issue is not resolved.

14 Abnormal sound from inside the machine

Frictional wear, smudges / foreign objects adhesion, or the waste toner clogging in the drum section

Step	Check description	Assumed cause	Measures
1	Executing Drum refresh	Toner is not enough on the drum	Execute the drum refresh to supply the toner to the cleaning unit.
2	Checking the drum screw	The drum screw does not properly rotate.	Check if the drum screw can rotate, and clean it if it does not rotate smoothly. Replace the drum unit if the drum screw locks.
3	Cleaning and applying the grease	Foreign objects are on the tooth of the drum drive gear, or the grease is not enough.	Clean the tooth of the drum drive gear and apply the grease to them.
4	Checking the drum unit and the developer unit	The torque inside the drum unit increased due to the waste toner clogging, etc.	Execute the drum refresh. If not repaired, replace the drum unit.

15 The drive sounds are noisy during printing

The operation sounds in the drive section

Step	Check description	Assumed cause	Measures
1	Checking the settings	The Quiet Mode is off.	Set [On] at [Adjustment/ Maintenance] > [Quiet Mode] via the System Menu.