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.
❏
Windows
Clear
Bidirectional Printing
on the printer driver’s
More Options
tab.
❏
Mac OS
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
High Speed Printing
setting.
The print quality is set to low.
Solutions
When printing on photo paper, print using a higher quality setting.
❏
Control panel
In the print settings, select the
Advanced Settings
tab if there is an
Advanced Settings
tab, and then
select
High
as the
Quality
.
❏
Windows
Select
High
from
Quality
on the printer driver's
Main
tab.
❏
Mac OS
Select
Fine
as
Print Quality
from the print dialog's
Print Settings
menu.
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 127
>
Printing, Copying, Scanning, and Faxing Quality is Poor
>
209
Summary of Contents for WF-3820 Series
Page 16: ...Part Names and Functions Front 17 Inside 18 Rear 19 ...
Page 27: ...Loading Paper Paper Handling Precautions 28 Paper Size and Type Settings 28 Loading Paper 30 ...
Page 32: ...Placing Originals Placing Originals 33 Originals that are not Supported by the ADF 34 ...
Page 375: ...Where to Get Help Technical Support Web Site 376 Contacting Epson Support 376 ...