Where can 3rd party ink for the wf-7820 be purchased?

Always use EZ ink. A lot cheaper and seems to work better than Epson ink. Been using for years on my Epson XP 8390 and never had a problem. Every printer will be different so check the internet to see if off brand ink will work. And make sure that an update will not change anything.

Does the tray actually hold 11x17? My current WF printer has small trays and the larger paper sticks out.

Not only does the tray hold 11 x 17 paper, but the PDF does as well. This is an important detail as not all printers that can print 11 x 17 have an ADF that can take paper that size

How long does the ink stay viable before it dries up and clogs?

I am using this for business. I've had the copier for almost 90 days and have just replaced the black ink cartridge. It has worked seamlessly so far.

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Description

🚀 Print Big, Print Fast, Print Smart — Own the Office Workflow!

SMART CONNECTED - Navigate effortlessly via a 4.3" touchscreen or control remotely with the Epson Smart Panel app on your phone.
EXPAND YOUR CANVAS - Print stunning wide-format documents up to 13" x 19" for presentations that demand attention.
BLAZING FAST OUTPUT - Keep pace with your busiest days at 25 black & 12 color pages per minute—no more waiting around.
MASSIVE PAPER CAPACITY - 500-sheet total capacity with dual 250-sheet trays plus rear feed means less refilling, more doing.
SEAMLESS DUPLEX MASTERY - Auto 2-sided print, copy, scan, and fax with a 50-sheet ADF to power through multitasking.

The Epson Workforce Pro WF-7840 is a powerhouse all-in-one printer designed for professionals who demand speed, precision, and versatility. Featuring high-speed PrecisionCore heat-free technology, it delivers up to 25 black and 12 color ISO ppm with stunning wide-format printing up to 13" x 19". Its robust 500-sheet capacity, automatic duplexing, and 50-sheet ADF streamline high-volume tasks, while wireless connectivity and a 4.3" touchscreen ensure effortless control. Perfect for fast-paced offices aiming to boost productivity without compromise.

Specifications

Product dimensions	97.5D x 51.6W x 52.1H centimeters
Controller type	Amazon Alexa
Maximum Media Size	13" x 19"
Power consumption	0.01 Watts
Included components	WorkForce Pro WF-7840 printer, quick setup guide, CD-ROM with drivers, power cord, 4x DURABrite Ultra Ink cartridges (1x Black ink cartridge and 3x color ink cartridges: 1x Cyan, 1x Magenta, 1x Yellow)
Print media	Glossy photo paper
Scanner type	Image Scanner
Max input sheet capacity	500
Max copy speed (black & white)	40 ppm
Compatible devices	Laptops, PC, Smartphones
Maximum color print resolution	4800 x 2400
Sheet size	13 inches
Maximum black and white print resolution	4800 x 2400
Colour depth	48 bpp
Dual-sided printing	Yes
Maximum copies per run	999
Wattage	20 watts
Item model number	WF-7840
Manufacturer	Epson
Color	Black
Form Factor	All-in-One
Graphics Card Description	Integrated
Connectivity Type	Wi-Fi
Number of USB 3.0 Ports	1
Number of Ethernet Ports	1
Hardware Platform	Smartphone
Operating System	Mac OS 10 15 Catalina, Mac OS X 10.6 Snow Leopard, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista, macOS 10.12 Sierra, macOS 10.13 High Sierra, macOS 10.14 Mojave
Are Batteries Included	No
Item Weight	20.6 Kilograms

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