Epson WF-7840 Series User Manual

5.
Follow the on-screen instructions to print the patterns for print head alignment, and then align the print head.
❏ is pattern allows you to perform alignment if your printouts look blurry.
Find and select the number for the most solid pattern.
❏ is pattern allows you to perform alignment if vertical ruled lines appear misaligned.
Find and select the number for the pattern that has the least misaligned vertical line.
❏ is pattern allows you to perform alignment if you see horizontal banding at regular intervals.
Find and select the number for the least separated and overlapping pattern.
Checking and Cleaning the Print Head
If the nozzles are clogged, the printouts become faint, there is visible banding, or unexpected colors appear. If the
nozzles are severely clogged, a blank sheet will be printed. When print quality has declined, rst use the nozzle
check feature to check if the nozzles are clogged. If the nozzles are clogged, clean the print head.
Maintaining the Printer > Improving Print, Copy, Scan, and Fax Quality > Checking and Cleaning the Print Head
151

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