Epson EcoTank Pro ET-16680 Series User Manual page 264

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Solving Problems
Striped Patterns Appear
The bidirectional printing setting is enabled.
Solutions
When printing on plain paper, disable the bidirectional setting.
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
quality.
Select Settings > General Settings > Printer Settings, and then disable Bidirectional on the control
panel.
The print head nozzles may be clogged.
Solutions
Use the Print Quality Adjustment feature. If you have not used the printer for a long time, the print head
nozzles may be clogged and ink drops may not be discharged.
"Adjusting the Print Quality" on page 157
&
Printout Comes Out as a Blank Sheet
The print head nozzles may be clogged.
Solutions
Use the Print Quality Adjustment feature. If you have not used the printer for a long time, the print head
nozzles may be clogged and ink drops may not be discharged.
"Adjusting the Print Quality" on page 157
&
The print settings and the paper size loaded in the printer are different.
Solutions
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.
>
Printing, Copying, Scanning, and Faxing Quality is Poor
>
264
Copy Quality is Poor

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