Epson WF-7840 Series User Manual

Checking the Status of Consumables
You can check the approximate ink levels and the approximate service life of the maintenance box from the
printer's control panel. Select
on the home screen.
Note:
❏ You can also check the approximate ink levels and the approximate service life of the maintenance box from the status
monitor on the printer driver. See the related information link below for details.
❏ You can continue printing while the ink low message is displayed. Replace the ink cartridges when required.
Related Information
& “Maintenance Tab” on page 47
& “Guide to Mac OS Printer Driver” on page 296
& “It is Time to Replace the Ink Cartridges” on page 229
& “It is Time to Replace the Maintenance Box” on page 236
Improving Print, Copy, Scan, and Fax Quality
Adjusting the Print Quality
If you notice a misaligned vertical lines, blurred images, or horizontal banding, adjust the print quality.
1.
Select Settings on the printer's control panel.
2.
Select Maintenance >Print Quality Adjustment.
3.
Follow the on-screen instructions to load paper and print the nozzle check pattern.
4.
Examine the printed pattern.
❏ If there are broken lines or missing segments as shown in the "NG" pattern, the print head nozzles may be
clogged. Select
to clean the print head.
❏ If you cannot see any broken lines or missing segments as in the following "OK" pattern, the nozzles are not
clogged. Select
to proceed to the next adjustment.
Maintaining the Printer > Improving Print, Copy, Scan, and Fax Quality > Adjusting the Print Quality
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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