Epson WF-4820 Series User Manual

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White or Dark Lines in Printout
If you notice white or dark lines in your prints (also called banding), try these solutions before you reprint:
• Run a nozzle check to see if any of the print head nozzles are clogged. Then clean the print head, if
necessary.
• Make sure the paper type setting matches the type of paper you loaded.
• Make sure you loaded the printable side of the paper correctly for your product.
• Turn off any high speed settings in your product software.
• Align the print head. If print quality does not improve after aligning the print head, disable the
bidirectional (high speed) setting.
• Adjust the print quality in the product software.
• If you are copying from the ADF, copy from the scanner glass instead or use a higher quality setting.
• When vertical banding appears or the paper is smeared, clean the paper path.
• You may need to replace the ink cartridges.
Parent topic: Solving Print Quality Problems
Related concepts
Print Head Nozzle Check
Print Head Cleaning
Related references
Paper or Media Type Settings - Printing Software
Related tasks
Aligning the Print Head Using the Product Control Panel
Selecting Additional Layout and Print Options - Windows
Selecting Printing Preferences - Mac
Loading Paper in the Cassette
Related topics
Replacing Ink Cartridges and Maintenance Boxes
Blurry or Smeared Printout
If your printouts are blurry or smeared, try these solutions:
• Make sure your paper is not damp, curled, old, or loaded incorrectly in your product.

Epson WF-4820 Series Specifications

General

Print Resolution	4800 x 2400 dpi
Connectivity	USB, Ethernet, Wi-Fi, Wi-Fi Direct
Paper Capacity	250 sheets
Automatic Document Feeder	Yes
ADF Capacity	35 sheets
Duplex Printing	Yes
Display	4.3" color touchscreen
Functions	Print, Copy, Scan, Fax
Scan Resolution	1200 x 2400 dpi
Fax Speed	33.6 Kbps
Weight	20.5 lbs
Print Speed (Black)	25 ppm
Print Speed (Color)	12 ppm
Scanner Type	Flatbed, ADF
Paper Sizes Supported	A4, A5, A6, B5, Letter, Legal, Executive, 3.5 x 5", 4 x 6", 5 x 7", 8 x 10", 8.5 x 11", 8.5 x 14"
Mobile Printing	Apple AirPrint, Mopria, Epson Connect
Ink Cartridges	Black, Cyan, Magenta, Yellow
OS Compatibility	Windows, Mac OS