Epson WF-7840 Series User Manual

Print Quality Adjustment:
Select this feature if there are any problems with your print outs. You can check for clogged nozzles
and clean the print head if necessary, and then adjust some parameters to improve print quality.
Print Head Nozzle Check:
Select this feature to check if the print head nozzles are clogged. e printer prints a nozzle check
pattern.
Print Head Cleaning:
Select this feature to clean clogged nozzles in the print head.
Print Head Alignment:
Select this feature to adjust the print head to improve print quality.
❏ Ruled Line Alignment
Select this feature to align vertical lines.
❏ Horizontal Alignment
Select this feature if horizontal banding appears at regular intervals in your printouts.
Ink Cartridge(s) Replacement:
Use this feature to replace the ink cartridge before the ink is expended.
Paper Guide Cleaning:
Select this feature if there are ink stains on the internal rollers. e printer feeds paper to clean the
internal rollers.
Remove Paper:
Select this feature if there are still some torn pieces of paper inside the printer even aer removing
jammed paper. e printer makes more space between the print head and the surface of the paper to
easily remove the torn pieces of paper.
Related Information
& “Checking and Cleaning the Print Head” on page 151
& “Replacing Ink Cartridges” on page 232
& “Cleaning the Paper Path for Ink Smears” on page 153
Language
Select the menus on the control panel as described below.
Settings > Language
Select the language used on the LCD screen.
Printer Status/Print
Select the menus on the control panel as described below.
Product Information > Settings Menu List > Printer Status/Print
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Epson WF-7840 Series Specifications

General

Print Resolution	4800 x 2400 dpi
Max Print Size	13" x 19"
Duplex Printing	Yes
Scanner Type	Flatbed, ADF
Scan Resolution	1200 x 2400 dpi
Connectivity	USB, Ethernet, Wi-Fi, Wi-Fi Direct
Display	4.3" Color Touchscreen
Category	Printer
Functions	Print, Copy, Scan, Fax
Maximum Paper Size	13" x 19"
Input Paper Capacity	250 sheets
ADF Capacity	50 sheets
Print Technology	PrecisionCore
Print Speed Black	25 ppm
Print Speed Color	12 ppm
Paper Capacity	250 sheets
Printing Technology	PrecisionCore
Mobile Printing	Apple AirPrint, Mopria Print Service, Epson Connect
Paper Sizes	A4, A5, Letter, Legal
Paper Capacity Maximum	500 sheets
Monthly Duty Cycle	50, 000 pages
Product Type	All-in-One Printer