Epson ET-3850: find the official driver route, checked connection details, 17 model-scoped error entries and 5 confirmed US part relationships. Unknown fields stay unknown.
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What is verified for this exact model?
Epson ET-3850 is listed in US-market manufacturer evidence. A blank specification is shown as “Not verified,” never as unsupported.
| Capability | Evidence status |
|---|---|
| Wi-Fi | Verified supported |
| Ethernet | Verified supported |
| USB | Not verified |
| Scan | Verified supported |
| Fax | Not verified |
| Automatic duplex | Not verified |
| Wi-Fi Direct | Not verified |
| AirPrint | Not verified |
Ethernet is supported in the cited model data. Use the printer's own RJ45 port for a direct network setup; sharing a USB printer from a PC is a separate route.
Wireless networking is supported. Check the printer's exact setup menu and the router settings before changing saved network configuration.
Scanning is a separate function from printing. If printing works but scanning does not, install or select the exact model's official scan software.
Get the official driver safely
This opens the manufacturer's US model finder. Select the complete model and your actual OS before downloading. The route is not an installer file or a claim about Windows 11 or macOS compatibility.
- Check the full model label, including any suffix.
- Select the correct Windows architecture or macOS version on the manufacturer site.
- Choose the package whose description matches printing or scanning needs.
- Install or add the printer in the OS, then print a test page.
Model-specific setup and maintenance
Epson EcoTank ET3850: Wi-Fi Setup Wizard
Connection report passes and a computer test page prints.
Epson ET3850: print a network connection report
Repeat the original operation and confirm the problem no longer occurs.
Epson ET3850: replace the maintenance box safely
Repeat the original operation and confirm the problem no longer occurs.
Verified messages and error codes
E-1
Physical network connection failed.
E-2
Wireless discovery or credentials failed.
E-5
Wireless security settings are incompatible.
E-6
Access control or connection limit blocks the device.
E-8
IP assignment failed.
E-9
Network devices cannot communicate.
E-10
IP/subnet/gateway configuration is inconsistent.
E-11
Default-gateway configuration is incorrect.
E-12
Address conflict or configuration mismatch.
E-13
TCP/IP or security settings prevent communication.
Printer error
General device fault.
Paper Setup Auto Display off
AirPrint requires this paper-setup setting.
Ink, toner, drum and maintenance parts
These part numbers are from model-specific official compatibility records checked on 2026-11-01. They do not confirm third-party cartridges, a seller, pack contents, or subscription eligibility. Diagnose the problem before replacing anything.
| Official part number | Component | Color |
|---|---|---|
| T502120-S | Ink Bottle | Black |
| T04D1 | Maintenance Box | Waste ink |
| T502220-S | Ink Bottle | Cyan |
| T502320-S | Ink Bottle | Magenta |
| T502420-S | Ink Bottle | Yellow |
If replacement is confirmed
These paid links open Amazon searches for the OEM numbers above. They do not identify an approved seller, current stock or a compatible third-party cartridge.
Epson T502120-S · Ink Bottle
Search results are not a compatibility or seller endorsement. Check the exact item before ordering.
(paid link)
Search Epson T502120-S on AmazonEpson T04D1 · Maintenance Box
Search results are not a compatibility or seller endorsement. Check the exact item before ordering.
(paid link)
Search Epson T04D1 on AmazonEpson T502220-S · Ink Bottle
Search results are not a compatibility or seller endorsement. Check the exact item before ordering.
(paid link)
Search Epson T502220-S on AmazonEpson T502320-S · Ink Bottle
Search results are not a compatibility or seller endorsement. Check the exact item before ordering.
(paid link)
Search Epson T502320-S on AmazonOfficial sources
These links identify the source and its scope. Check the manufacturer page again before changing a printer setting or buying a part.
- Epson — 502 bottle SKU and Works With lists Checked 2026-11-01; official full page
- Epson — T04D1/T04D100 maintenance box compatibility Checked 2026-11-01; official full page
- Epson — Network connection report codes linked from ET3850 support Checked 2026-11-01; official full page
- Epson — ET3850 product status messages Checked 2026-11-01; official full page
- Epson — ET3850 maintenance box replacement Checked 2026-11-01; official full page
- Epson — ET3850 ink-level reset prompt Checked 2026-11-01; official full page
- Epson — Epson official driver/model support entry Checked 2026-11-01; official full page
- Epson — ET3850 control-panel Wi-Fi setup Checked 2026-11-01; official indexed excerpt
- Epson — ET3850: print and interpret a network connection report Checked 2026-11-01; official full page
- Epson — ET-3850 wireless setup wizard Checked 2026-11-01; official full page
- Epson — ET-3850U user guide networking and Ethernet Checked 2026-11-01; official pdf text and visual
Useful next steps
Found a mismatch? Request a correction with the public source URL and exact model, without passwords or full serial numbers.