Epson EcoTank ET-3700: Setup, Drivers, Ink and Common Problems

Is the Epson EcoTank ET-3700 right for you?

The ET-3700 was the first consumer EcoTank with a PrecisionCore head and pigment black ink, giving it crisp, water-resistant text and a much faster 15 ppm black speed than the ET-2700 series. It is a good small-office choice even today thanks to its Ethernet port and auto duplex. The pigment black is also the weak point: if the printer sits unused, the black channel clogs before the dye colours do, so a monthly nozzle check is worth the minute it takes.

Best for: Small offices wanting sharp black text and wired networking

Setting up the Epson EcoTank ET-3700

Connect by Ethernet if the printer lives near a router; it avoids the 2.4 GHz-only Wi-Fi limitation. Install the driver from epson.com/support and the Event Manager for scan buttons on Windows. After filling the tanks, the first ink charge takes about ten minutes, and a second cleaning cycle right after setup is unnecessary.

1. Unbox and prepare. Remove every piece of shipping tape and packing material, install the ink bottles (fill each tank to the upper line), and load paper in the tray.
2. Join your Wi-Fi. Keep the printer close to the router for setup. Most printers only connect to the 2.4GHz band, so if your router broadcasts one merged network name you may need to split the bands temporarily. See our Wi-Fi guide if it will not join.
3. Install the setup app. Use Epson's official app rather than a driver you found on a search result — third-party driver sites are the most common source of printer malware.
4. Add the printer. On Windows 11: Settings › Bluetooth & devices › Printers & scanners › Add device. On macOS: System Settings › Printers & Scanners › Add Printer.
5. Print a test page and run a scan if this is an all-in-one, so you find any problem now rather than when you are in a hurry.

Ink, toner and supplies

The Epson EcoTank ET-3700 uses the following consumables. Match the number exactly when you buy: the same printer family often uses several different cartridge numbers by region.

• Epson 502 Black
• Epson 502 Cyan/Magenta/Yellow ink bottles

High-yield (XL) versions almost always cost less per page if you print regularly. On third-party ink and toner, read our honest assessment first, and note that some manufacturers push firmware that rejects non-original chips.

Full specifications