Epson WorkForce Pro WF-R8590 DTWF - Manual (Page 185)

❏ Disable the bidirectional (or high speed) setting. When this setting is enabled, the print head prints while
moving in both directions, and vertical lines may be misaligned. If you disable this feature, printing may slow
down.
❏ Control Panel
When printing JPEGs or TIFFs, press Settings, and then disable Bidirectional.
❏ Windows
Clear High Speed on the printer driver's More Options tab.
❏ Mac OS X
Select System Preferences from the 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.
❏ Perform a nozzle check, and then clean the print head if any of the print head nozzles are clogged.
❏ Align the print head. If your printouts contain horizontal banding or streaks after trying Print Head Cleaning
and Horizontal Alignment, select Setup > Maintenance > Improve Horizontal Streaks to finely tune the
horizontal alignment.
❏ Do not stack the paper immediately after printing.
❏ Dry the printouts completely before filing or displaying them. When drying the printouts, avoid direct sun light,
do not use a dryer, and do not touch the printed side of paper.
❏ Try to use genuine Epson ink supply units. This product is designed to adjust colors based on the use of genuine
Epson ink supply units. The use of non-genuine ink supply units may cause print quality to decline.
❏ Epson recommends using the ink supply unit before the date printed on the package.
❏ When printing images or photos, Epson recommends using genuine Epson paper rather than plain paper. Print
on the printable side of the genuine Epson paper.
Related Information
& “Paper Handling Precautions” on page 43
& “List of Paper Types” on page 46
& “Checking and Cleaning the Print Head” on page 142
& “Aligning the Print Head” on page 144
& “Improving Horizontal Streaks” on page 146
& “Available Paper and Capacities” on page 43
Copy Quality Is Poor
Check the following if uneven colors, smears, dots, or straight lines appear in the copied image.
❏ Load and eject paper without printing to clean the paper path.
❏ Clean the scanner glass.
❏ Clean the ADF.
❏ Do not press too hard on the original or the document cover when you are placing the originals on the scanner
glass. Uneven colors, smears, or dots may appear when the original or the document cover are pressed too hard.
❏ If a moiré (cross-hatch) pattern appears, change the reduce and enlarge setting or place the original at a slightly
different angle.
User's Guide
Solving Problems
185