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Epson WF-7840 Series User Manual

Epson WF-7840 Series
437 pages
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Important:
Do not open the scanner unit or turn o the printer during head cleaning. If the head cleaning is incomplete, you
may not be able to print.
Head cleaning consumes ink and should not be performed more than necessary.
When ink is low, you may not be able to clean the print head.
If print quality has not improved aer repeating nozzle check and head cleaning 3 times, wait for at least 12
hours without printing, and then run the nozzle check again and repeat the head cleaning if necessary. We
recommend turning o the printer by using the
P
button. If print quality has still not improved, contact Epson
support.
To prevent the print head from drying out, do not unplug the printer while the power is on.
1.
Select Settings on the printer's control panel.
2.
Select Maintenance > Print Head Nozzle Check.
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. Go to the next step.
If you cannot see any broken lines or missing segments as in the following "OK" pattern, the nozzles are not
clogged. Print head cleaning is not necessary. Select
to exit.
5.
Select
.
6.
Follow the on-screen instructions to clean the print head.
7.
When cleaning is nished, follow the on-screen instructions to print the nozzle check pattern again. Repeat
cleaning and printing the pattern until all lines are printed completely.
Note:
You can also check and clean the print head from the printer driver. See the related information link below for details.
Related Information
& “Maintenance Tab” on page 47
& “Guide to Mac OS Printer Driver” on page 296
Maintaining the Printer
>
Improving Print, Copy, Scan, and Fax Quality
>
Checking and Cleaning the Print Head
152

Table of Contents

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Epson WF-7840 Series Specifications

General IconGeneral
Print Resolution4800 x 2400 dpi
Max Print Size13" x 19"
Duplex PrintingYes
Scanner TypeFlatbed, ADF
Scan Resolution1200 x 2400 dpi
ConnectivityUSB, Ethernet, Wi-Fi, Wi-Fi Direct
Display4.3" Color Touchscreen
CategoryPrinter
FunctionsPrint, Copy, Scan, Fax
Maximum Paper Size13" x 19"
Input Paper Capacity250 sheets
ADF Capacity50 sheets
Print TechnologyPrecisionCore
Print Speed Black25 ppm
Print Speed Color12 ppm
Paper Capacity250 sheets
Printing TechnologyPrecisionCore
Mobile PrintingApple AirPrint, Mopria Print Service, Epson Connect
Paper SizesA4, A5, Letter, Legal
Paper Capacity Maximum500 sheets
Monthly Duty Cycle50, 000 pages
Product TypeAll-in-One Printer

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