You hit print, the document looks fine on your screen, and then nothing comes out of your Epson EcoTank ET-4850. Maybe the touchscreen shows an error, maybe the job just sits in the queue, or maybe the printer is sitting there acting like it never heard from your computer at all. The good news is that a "won't print" problem on this wireless supertank all-in-one almost always traces back to a short list of culprits, a stuck queue, an offline status, a dropped Wi-Fi connection, low ink in the tanks, a clogged print head, or an outdated driver.
Work through the fixes below in order. They start with the quickest, safest steps and only move toward resetting the printer and contacting support at the very end, so you can stop as soon as the pages start flowing again.
Start by power-cycling the printer and reading the screen
Before touching your computer or router, give the printer itself a clean restart. Turn the ET-4850 off, then back on, and try printing again. While you are at it, look at the 2.4-inch color touchscreen and clear any errors it is displaying, since a single on-screen warning can quietly halt every job.
To confirm the printer is healthy on its own, print a nozzle check pattern straight from the control panel using the Maintenance menu. If that pattern prints, the hardware and ink are fine and the real problem lives on the computer or network side, which tells you exactly where to focus next.
Clear the print queue and bring Windows back online
On a Windows PC, a stuck job or an "offline" status is the most common reason a printer goes silent. Open the Epson print queue and delete any pending or stuck jobs that are clogging it up. Then make sure the printer is set back to online.
- 1.Open the Epson print queue for the ET-4850.
- 2.Delete any pending or stuck print jobs.
- 3.Select Printer in the menu bar.
- 4.Deselect the 'Use Printer Offline' checkbox so the printer is back online.
- 5.Try printing again.
On a Mac, resume the queue or re-add the printer
Mac users should start in the same place, the print queue. Open the Epson print queue, delete any pending jobs, and resume anything that is paused by clicking the paused job and then clicking Resume.
If it still refuses to print, delete the print queue and add it again fresh, which clears out a corrupted queue entry.
- 1.Delete the existing ET-4850 print queue.
- 2.Add the printer again with Kind set to Bonjour.
- 3.Choose the printer in the Use drop-down.
- 4.Click Add.
Restart your router so the wireless link can recover
Because the ET-4850 prints over Wi-Fi, a flaky router connection often looks exactly like a broken printer. Unplug the router's power cord from the outlet, wait a brief period, plug it back in, and then try to print once the network is back up.
If that alone does not fix it, restart your computer and try again. Throughout this, double-check that the computer and the printer are connected to the same wireless network, since printing fails the moment they land on different ones.
Strengthen the Wi-Fi signal and use a 2.4 GHz band
A weak or noisy signal can let the printer connect but still drop jobs. Print a network status sheet from the control panel and check the signal strength it reports. If the signal is poor, move the printer closer to the router and away from common sources of interference, including microwave ovens, 2.4 GHz cordless phones, and large metal objects such as filing cabinets. A clearer path between the two devices makes the connection far more reliable.
This printer connects on the 2.4 GHz band, and modern dual-band routers can accidentally hide that band behind a single name. If you use a dual-band wireless router, set it to broadcast both 2.4 GHz and 5 GHz. If your router uses a single network name (SSID) for both bands, give each band its own SSID, for example 'Home Network 2.4 GHz' and 'Home Network 5 GHz'. With the bands separated, you can point the printer directly at the 2.4 GHz network it expects to join.
Reconnect Wi-Fi with the Setup Wizard
If the printer has lost its network entirely, walk it back on with the built-in wizard. Both the network name and the password are case sensitive, so enter them exactly.
- 1.Press the home button if necessary, then select the network status icon.
- 2.Select Wi-Fi (Recommended).
- 3.Select Start Setup or Change Settings.
- 4.Select Wi-Fi Setup Wizard.
- 5.Select your network name (or choose Enter Manually).
- 6.Enter your password in the Enter Password field, then select OK.
- 7.Confirm the settings and select Start Setup.
- 8.Select Close if successful, or select Print Check Report to print a network setup report, or Re-enter to try again if it fails.
As an alternative, you can use the Epson Smart Panel app (iOS 11.0 or later, iPadOS 13.1 or later, or Android 5.0 or later) to add the printer to your network.
Check the ink tanks and refill anything below the line
The ET-4850 is a cartridge-free EcoTank supertank, so there are no cartridges to swap, instead you refill the ink tanks. The on-screen software level is only an estimate, so trust your eyes here. Visually check the ink levels in the tanks and make sure each color sits above its lower line.
If any color has dropped below the lower line, refill that color, matching the tank to the correct ink. Then select Proceed and follow the on-screen instructions to reset the ink level. Continuing to print with ink below the lower line could damage the printer, so do not skip this step.
Run a nozzle check, then clean the print head
If pages come out blank or full of gaps and streaks, the print head likely needs cleaning. Run a nozzle check first to see the pattern, then start a cleaning cycle from the panel.
- 1.Press the home button if necessary.
- 2.Select Maintenance, then Print Head Cleaning.
- 3.Select Start.
Never turn off the product or open the scanner unit while a cleaning cycle is running. If there is no improvement after cleaning up to 3 times, turn off the product, wait at least 12 hours, then try again. For stubborn clogs, you can instead run Maintenance, then Power Cleaning, and follow the on-screen instructions, but after a Power Cleaning you must turn off the product and wait at least 12 hours before running another.
Update or reinstall the printer driver and firmware
A corrupted or outdated driver can block printing even when everything else looks perfect. Download and install the latest 'Drivers and Utilities Combo Package' for the ET-4850 from the Downloads section on the official Epson support page. You can also use Epson Software Updater on Windows or Mac, which keeps the software current and updates the printer's firmware too, just make sure the device is powered on and connected to the internet.
On Windows, if the installation gets blocked partway through, temporarily disabling the firewall during the install and then re-enabling it afterward can clear the block. Reinstalling the driver from scratch is the reliable cure for a corrupted or outdated one.
Restore default settings, then reach out to Epson Support
If nothing above has worked, a reset is the last resort. Resetting Network Settings clears all of the printer's network configuration, and choosing Clear All Data and Settings resets all control panel settings and deletes stored information, so use that broader option only if you are prepared to lose those settings.
- 1.Press the home button if necessary, then select Settings.
- 2.Select Restore Default Settings.
- 3.Choose Network Settings (or Clear All Data and Settings to wipe everything).
- 4.When the confirmation screen appears, select Yes to reset the selected settings.
After the reset, reconnect the printer to Wi-Fi using the Wi-Fi Setup Wizard described earlier. If the ET-4850 still will not print after all of this, contact Epson Support for further help.
Frequently Asked Questions
Why does my ET-4850 show as offline even though it is powered on?
On Windows, an "offline" status is usually a software flag rather than a real connection problem. Open the Epson print queue, select Printer, and deselect the 'Use Printer Offline' checkbox to bring it back online, then clear any stuck jobs and try printing again.
My pages are coming out blank, is the printer broken?
Usually not. Because the ET-4850 is an ink-tank printer, first visually confirm every tank is above its lower line and refill any that are low. If the tanks are fine, run a nozzle check and then a print head cleaning from Maintenance, then Print Head Cleaning, since blank or gappy output most often points to a clogged head.
Does the ET-4850 need a 5 GHz or a 2.4 GHz network?
Set up the printer on a 2.4 GHz network. If your router broadcasts both bands under one name, separate them into distinct SSIDs (for example 'Home Network 2.4 GHz' and 'Home Network 5 GHz') so the printer can join the 2.4 GHz band, and keep the printer and computer on the same network.
Will resetting the printer delete everything?
It depends on the option you pick. Settings, then Restore Default Settings, lets you reset only Network Settings, while Clear All Data and Settings resets all control panel settings and deletes stored information. Choose Network Settings if you only need to fix connectivity, and reconnect Wi-Fi afterward with the Wi-Fi Setup Wizard.
Can I print from my phone without a computer?
Yes. The ET-4850 works with the Epson Smart Panel app (iOS 11.0 or later, iPadOS 13.1 or later, or Android 5.0 or later) for printing, scanning, and setup, and it also supports Apple AirPrint and Mopria Print Service. Just make sure the phone is on the same 2.4 GHz network as the printer.
