Epson WF-C5790 Series User Manual

Maintaining the Printer
Checking and Cleaning the Print Head
If the nozzles are clogged, the printouts become faint, there is visible banding, or unexpected colors appear. When
print quality has declined, use the nozzle check feature and check if the nozzles are clogged. If the nozzles are
clogged, clean the print head. You can perform a nozzle check and head cleaning from the control panel or the
computer.
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Important:
❏ Do not open the ink supply unit tray or turn
o
the printer during head cleaning. If the head cleaning is
incomplete, you may not be able to print.
❏ Because print head cleaning uses some ink, clean the print head only if quality declines.
❏ When ink is low, you may not be able to clean the print head. Replace the ink supply unit rst.
❏ If print quality has not improved aer repeating nozzle check and head cleaning about four times, wait for at
least six hours without printing, and then run the nozzle check again and repeat the head cleaning if necessary.
We recommend to turn
o
the printer. 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.
Checking and Cleaning the Print Head - Control Panel
1. Load A4-size plain paper in the paper cassette 1.
2. Select Settings on the home screen.
3. Select Maintenance > Print Head Nozzle Check.
4. Follow the on-screen instructions to print the nozzle check pattern.
5. 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. Select
to close the nozzle check feature.
6. Select , and then follow the on-screen instructions to clean the print head.
User's Guide
Maintaining the Printer
174

Epson WF-C5790 Series Specifications

General

Print Resolution	4800 x 1200 dpi
Automatic Duplex Printing	Yes
Scan Resolution	1200 x 2400 dpi
ADF Capacity	50 sheets
Monthly Duty Cycle	Up to 45, 000 pages
Display	4.3" color touchscreen
Maximum Paper Size	8.5" x 47.2"
Fax	Yes
Product Type	Multifunction Printer
Output Capacity	150 sheets
Print Technology	PrecisionCore
Paper Capacity	250 sheets
Connectivity	USB, Ethernet, Wi-Fi, Wi-Fi Direct
Scanner Type	Flatbed, ADF
Mobile Printing	Epson Connect, Apple AirPrint, Google Cloud Print
Standard Paper Input	250 sheets
Paper Sizes	A4, A5, A6, B5, Letter, Legal, Executive
Ink Type	Epson DURABrite Ultra pigment ink
Ink Cartridge Configuration	4 individual ink cartridges (Black, Cyan, Magenta, Yellow)
Operating Systems Supported	Windows, macOS
Print Speed	24 ISO ppm (black/color)