Operation Manual

– 46 –
6 Troubleshooting
The following table contains an overview of the most frequent operating errors or problems and their
possible causes and remedies. Before calling our service desk, please consult this table which has
been compiled by our service engineers. In most cases you will be able to solve the problem on
your own.
Errors Possible cause Remedy
The faxes are of poor quality
You or your fax correspondent
receive blank pages.
The thermal paper is not properly
loaded.
Your fax correspondent sends the
wrong (blank) side of a document.
The printer is faulty.
Load the thermal paper correctly.
Your fax correspondent must feed the
document properly.
Test the fax machine by making a copy.
Call service if necessary.
Faxes are of poor quality. The document contains photographs or
small print.
The document lacks contrast.
Your fax machine is faulty.
Change the resolution settings
(see chapter 4.1).
Check the document.
Test the fax machine by making a copy.
Call service if necessary.
Your fax or your partner’s fax
machine produces black lines
when printing.
There is paper in the sheet feeder or
the scanner is dirty. Your fax machine is
faulty.
Open the operation panel and remove
the paper from the document feed slot.
Test the fax machine by making a copy.
Call the service if necessary.