EPSON ET-3850U Wireless Color All-in-One Cartridge-Free Supertank Printer User Guide

: June 4, 2024
: Epson

Table of Contents

Unpack
Choose a setup method
Fill ink tanks
Load paper
Install software
Mobile and voice-activated printing
Any problems?
Any questions?
Need paper?
Declaration of Conformity
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

ET-3850U Wireless Color All-in-One Cartridge-Free Supertank Printer
User Guide

IMPORTANT: Before using this product, make sure you read these instructions and the safety instructions in the online User’s Guide.
Note: As part of the ReadyPrint™ program, Epson monitors ink usage remotely to provide you with additional ink before you run out of it. The product must be connected to the Internet to function and monitor ink usage.

Unpack

EPSON ET 3850U Wireless Color All in One Cartridge Free Supertank Printer -
Figure 1

Note: Do not open the ink bottles until you are ready to fill the ink tanks. The ink bottles are vacuum-packed to maintain reliability.

Remove all protective materials from the product.

Caution: Do not touch the flat white cable or the ink tubes and their translucent cover.
Connect the power cord to the back of the product and to an electrical outlet.
Caution: Do not connect to your computer yet.

Choose a setup method

The Epson Smart Panel® app can help you set up your printer through an interactive, step-by-step process using your smartphone or tablet.

To use your mobile device for setup, continue to step 1.

If you do not want to use a mobile device for setup, skip to the “Fill ink tanks” section below.

Download the Epson Smart Panel app from your device’s app store. Do not launch the app yet.
Press the power button to turn on the product.
Note: Do not connect your product to your computer yet.
Launch the app and follow its instructions to set up your product.

For information on connecting your product to a computer, using voice- activated printing, or solving problems, or for details on reaching Epson support, see the sections on the back of this sheet.

Fill ink tanks

Warning: Keep the ink bottles out of the reach of children and do not drink the ink.
Caution: This product requires careful handling of ink. If ink spills, wipe it off immediately with a damp towel to avoid permanent stains. If ink gets on your clothes or belongings, it may not come off.

Note:

Use only Epson® 570 ink provided to you under the ReadyPrint program.
Use the ink bottles included with the printer to set up the product. Part of the ink will be used to charge the print head. These bottles may print fewer pages compared with replacement ink bottles.

With the scanner unit raised, open the ink tank cover, then open the cap for the black (BK) ink tank.
Note: Refer to the color-coded sticker to identify the color of each tank.
Unpack the black (BK) ink bottle. Hold the ink bottle upright and slowly turn the bottle cap to remove it.
Caution: Do not shake or squeeze the ink bottle. Do not touch the top of the ink bottle after its cap is removed.
Insert the ink bottle into the filling port.
Note: Do not force the bottle into position; each bottle is keyed for each color.
Wait for the ink to fill the tank. Do not squeeze the bottle or allow it to contact any other surface.
Note: Ink flows into the tank and stops automatically when the ink tank is filled to the upper line. If ink does not flow from the bottle, lift and reinsert the bottle.
When the ink tank is full, remove the ink bottle and securely close it with the bottle cap. If any ink remains in the bottle, close the bottle and store it for later use.
Note: Do not leave the ink bottle inserted; otherwise the bottle may be damaged or ink may leak.
Securely close the black ink tank cap.
Repeat the previous steps for the other colors.
Close the ink tank cover, then close the scanner unit.
Raise the control panel, then press the power button to turn on the product. The power light flashes.
Note: If an error code appears, turn off the product and check that no protective material has been left inside the product.
Select your language.
Note: You can change this setting later using the product’s
control panel. For more information, see the online User’s Guide.
When an Epson Smart Panel message appears on the
LCD screen, select the option to continue setup without the app.
When the message to see the Start Here sheet appears
on the LCD screen, press and hold the help button for 5 seconds.
Follow the on-screen instructions to start ink charging. Ink charging takes about 10 minutes.
Note: When the power light stops flashing, ink charging is complete. Once the initial setup of the printer is complete, you can top off the ink tanks with any remaining ink. See the online User’s Guide for instructions.
Caution: Do not unplug or turn off the product, or raise the scanner unit while the product is charging or you’ll waste ink.
Note: After some ink is used for charging, the rest is available for printing.
Press the OK button to proceed with the initial setup.
Follow the on-screen instructions to adjust the print quality of your product.
Note:
• You need to load paper before you can adjust the print quality.
See “Load paper” on this sheet for details.
• Select Adjust Later if you want to adjust the print quality later.
For more information, see the online User’s Guide.

Caution: After setup, periodically inspect the▼ ink levels to ensure they do not fall below the lowest lines on the tanks. Prolonged use when ink is below the lowest line could damage the product. See the online User’s Guide for refilling instructions.

Load paper

See the online User’s Guide for information about loading capacity, available paper types and sizes, using the ADF, and loading envelopes.

Make sure the product is not charging ink, and then open the front of the paper cassette and pull out the paper cassette.
Slide the side edge guides all the way out.
Insert paper with the glossy or printable side down.
Note: Make sure the paper is loaded against the front edge guide and not sticking out from the end of the cassette.
Slide the side edge guides against the paper, but not too tightly. Close the front of the cassette.
Keep the cassette flat as you insert it all the way.
Pull out the output tray.
Select the paper settings on the product’s control panel.

Install software

Note:
• An Internet connection is required to obtain the product software.
• To print from a Chromebook™, go to
http://epson.com/support/chromebookprint for instructions.

Make sure the product is NOT CONNECTED to your computer.
Windows: If you see a Found New Hardware screen, click Cancel and disconnect the USB cable.
Download and run your product’s software package: http://epson.com/support/et3850u
Follow the instructions on the computer screen to run the setup program.
When you see the Select Your Connection screen, select one of the following and follow the on-screen instructions:

• Wireless connection
In most cases, the software installer automatically attempts to set up your wireless connection. If the setup is unsuccessful, you may need to enter your network name (SSID) and password.
• Direct USB connection
Make sure you have a USB cable (not included).
• Wired network connection
Make sure you have an Ethernet cable (not included).

Mobile and voice-activated printing

Print directly from your Android™ (v4.4 or later) device*.
Simply connect your printer and device to the same network and tap the menu icon to select the print option.
Turn your mobile device into an intuitive, easy-to-use printing and scanning control center with Epson Smart Panel.
Download the app from your mobile device’s app store.
Print from wherever you are, next to your printer or remotely, with Epson Connect™. Learn more at http://epson.com/connect.
Use voice-activated assistants to print a variety of creative and everyday items from your Epson product. Simply add your product to an Epson Connect account, then link the account to a voice-activated assistant. See http://epson.com/voice for more information.
May require the Epson Print Enabler or Mopria Print Service app from Google Play™.

Any problems?

Network setup was unsuccessful.

Make sure you select the right network name (SSID).
Restart your router (turn it off and then on), then try to connect to it again.
The printer can only connect to a network that supports 2.4
GHz connections. If your router offers both 2.4 GHz and 5 GHz connections, make sure 2.4 GHz is enabled.
If you see a firewall alert message, click Unblock or Allow to let setup continue.
If your network has security enabled, make sure you enter your network password (WEP key or WPA passphrase) correctly. Be sure to enter your password in the correct case.
Print a network connection report to identify network problems and solutions. See your online User’s Guide for instructions.

There are lines or incorrect colors in my printouts.
Run a nozzle check to see if there are any gaps in the printout.
Then clean the print head, if necessary. See the online User’s
Guide for more information.

The product’s screen is dark.
Make sure your product is turned on, and press any button to wake it from sleep mode.

Setup is unable to find my product after connecting it with a USB cable.
Make sure your product is on and the USB cable is securely connected.

Any questions?

User’s Guide
Windows: Click the icon on your desktop or Apps screen to access the online User’s Guide.
Mac: Click the icon in Applications/Epson Software/Guide to access the online User’s Guide.
If you don’t have a User’s Guide icon, go to the Epson website, as described in “ReadyPrint subscription program technical support.”

Videos
Visit http://epson.com/support/et3850uvideos to view support
videos.

ReadyPrint subscription program technical support
Visit http://epson.com/support/et3850u to download drivers, view manuals, get FAQs, or contact Epson.
Call 800-879-3776, 7 am to 4 pm, Pacific Time, Monday through Friday. Days and hours of support are subject to change without notice.

Recycling
Epson offers a recycling program for end-of-life hardware and ink bottles. Please go to http://epson.com/recycle for information on how to return your products for proper disposal.

Need paper?

Ensure brilliant results with Epson specialty and plain papers, engineered specifically for Epson printers. Find Epson papers at http://epson.com and at Epson authorized resellers. Call 800-GO-EPSON (800-463-7766).

Epson printers, ink, and specialty papers.

Declaration of Conformity

According to 47CFR, Part 2 and 15 for Class B Personal Computers and Peripherals; and/or CPU Boards and Power Supplies used with Class B Personal Computers:

We: Epson America, Inc.
Located at: 3131 Katella Ave. Los Alamitos, CA 90720
Telephone: 562-981-3840

Declare under sole responsibility that the product identified herein, complies with 47CFR Part 2 and 15 of the FCC rules as a Class B digital device. Each product marketed is identical to the representative unit tested and found to be compliant with the standards. Records maintained continue to reflect the equipment being produced can be expected to be within the variation accepted, due to quantity production and testing on a statistical basis as required by 47CFR §2.906. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Trade Name:	Epson
Type of Product:	Multifunction printer
Model:	C631B
Marketing Name:	ET-3850U

EPSON and Epson Smart Panel are registered trademarks, EPSON Exceed Your Vision is a registered logomark, and Epson Connect is a trademark of Seiko Epson Corporation.
ReadyPrint and Designed for Excellence are trademarks of Epson America, Inc.
Windows is a registered trademark of Microsoft Corporation in the United States and/or other countries.
Mac is a trademark of Apple Inc., registered in the U.S. and other countries.
Android, Chromebook, and Google Play are trademarks of Google LLC.
General Notice: Other product names used herein are for identification purposes only and may be trademarks of their respective owners. Epson disclaims any and all rights in those marks.
This information is subject to change without notice.
© 2021 Epson America, Inc., 9/21