Sindoh M612 - Manual (Page 264)

Maintenance and Troubleshooting
5-
38
Image Quality Problem
If you can not solve problems with below steps, contact the authorized dealer.
Problem Cause Solution
Cannot print anything. Check if the document is load-
ed with its correct side facing
the right direction. Load the document with its cor-
rect side facing the right direc-
tion.
Several pages are fed at the
same time. Shake the document so that
pages are not attached to each
other.
The toner is low. Change the toner cartridge.
The device has a problem. Contact the authorized dealer.
Black dots are printed. Paper is wet. Change the new paper.
Improper paper is used. Use proper paper.
The flatbed is dirty. Clean up the flatbed.
Paper becomes wrinkled or
texts are not clear. Improper paper is used. Use proper paper.
Paper is wet. Change the new paper.
Black dots are printed in the
feeding direction. The flatbed is dirty. Clean up the flatbed.
Overall output is dirty. The flatbed is dirty. The op-
posite side of the document is
printed. Clean up the flatbed. If the orig-
inal document is thin, increase
[Brightness] and [Background
Remove] settings.