Epson WorkForce Pro WF-C879RBAM User Manual page 274

Table of Contents

Solving Problems

During bidirectional (or high speed) printing, the print head prints while moving in both directions, and

vertical lines may be misaligned. Disabling this setting may slow down printing speed but improve print

❏ Control panel

Select Settings > General Settings > Printer Settings, and then disable Bidirectional.

Clear Bidirectional Printing on the printer driver's More Options tab.

Select System Preferences from the Apple menu > Printers & Scanners (or Print & Scan, Print &

Fax), and then select the printer. Click Options & Supplies > Options (or Driver). Select Off as the

Bidirectional Printing setting.

Printouts are Blank or Only Some Lines are Printed

The print head nozzles may be clogged.

Try Power Cleaning.

"Running Power Cleaning" on page 173

The print settings and the paper size loaded in the printer are different.

Change the print settings according to the paper size loaded in the paper cassette. Load paper in the

paper cassette that matches the print settings.

Multiple sheets of paper are fed into the printer at the same time.

See the following to prevent multiple sheets of paper being fed into the printer at the same time.

"Several Sheets of Paper are Fed at a Time" on page 207

Printing, Copying, Scanning, and Faxing Quality is Poor

Print Quality is Poor