- Printers
- Inkjet printer
341
Epson 341 on inkjet printer: scan to PC communication error
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
Code 341 in Job Status on your Epson EcoTank means 'A communication error has occurred' when scanning to a computer: check the USB or network connection, print a network connection report, and verify Epson Event Manager or Epson ScanSmart is installed.
Safety first
Stop and check this first
- On Windows 7 or later and OS X El Capitan or later, you can also start scanning directly from your computer using Epson ScanSmart instead of the printer panel.
Safe checks you can perform
- Check the USB cable or print a network connection report
- Verify that Epson ScanSmart / Epson Event Manager and Epson Scan 2 are installed
- Test starting a scan from the computer using Epson ScanSmart
Leave these tasks to a qualified professional
- Do not attempt this professional task: Workstation IT support or network administrator
- Do not attempt this professional task: Epson authorised service for scanner PC communication
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Workstation IT support or network administrator
What they doIf you are using a managed office computer where you cannot install Epson ScanSmart, Epson Event Manager, and Epson Scan 2, or where firewall rules block panel-initiated scans, ask IT support.
They must show youEpson ScanSmart or Epson Event Manager and Epson Scan 2 installed and receiving a scan from the panel.
In writingthe software installed or firewall rule added and the helpdesk ticket number.
Epson authorised service for scanner PC communication
What they doIf Epson Scan 2 and Epson Event Manager or Epson ScanSmart are installed and code 341 still occurs over a verified direct USB connection, contact Epson support.
They must show youa Scan > Computer job completing without code 341 in Job Status.
In writingthe USB and network test results, warranty coverage, and the Epson case number.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Check the USB cable or print a network connection report
- Who:
- you, at the printer and computer.
- How:
- check the USB cable if connected by USB; if connected over a network, select Settings > General Settings > Network Settings > Connection Check > Print Check Report on the control panel.
- Result that matters:
- verifying that the printer has an active link to the computer or network router.
- If the report shows a network problem or the USB cord was loose:
- fix the connection and retry.
- If the physical or network link is healthy:
- check the Epson software on the computer.
- Evidence to keep:
- the printed network connection report or a photo of the direct USB connection.
Evidence: Epson ET-5800 series: Error Code is Displayed on the Status Menu · Epson ET-5800 series: Printing a Network Connection Report
Verify that Epson ScanSmart / Epson Event Manager and Epson Scan 2 are installed
- Who:
- you, on the destination computer.
- How:
- on Windows, check Start > All Programs > Epson Software (for Epson ScanSmart or Epson Event Manager) and EPSON > Epson Scan 2; on Mac OS, check Go > Applications > Epson Software.
- Result that matters:
- confirming the computer has the utilities required to receive control-panel scans.
- If one of the programs is missing:
- install it and retry Scan > Computer from the panel.
- If both are installed and code 341 continues:
- test scanning from the computer side.
- Evidence to keep:
- a screenshot showing Epson ScanSmart or Epson Event Manager and Epson Scan 2 installed.
Evidence: Epson ET-5800 series: Error Code is Displayed on the Status Menu · Epson ET-5800 series: Scanning Originals to a Computer
Test starting a scan from the computer using Epson ScanSmart
- Who:
- you, at the computer.
- How:
- open Epson ScanSmart on the computer (on Windows 7 or later, or OS X El Capitan or later) and initiate a scan from the application instead of the printer panel.
- Result that matters:
- checking whether Epson Scan 2 can communicate with the scanner from the computer.
- If scanning from Epson ScanSmart works:
- check which computer is selected in Scan > Computer or firewall rules.
- If scanning also fails over a direct USB cable from the computer:
- contact Epson support.
- Evidence to keep:
- a screenshot of the Epson ScanSmart test and the Job Status log.
Evidence: Epson ET-5800 series: Scanning Originals to a Computer
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Printers
- Brand
- Epson
- Product type
- Inkjet printer
Known code variants
- A communication error has occurred scan to computer
- código 341 Epson
- EcoTank 341 escanear a ordenador
- EcoTank 341 scan to computer
- Epson 341
- Epson 341 Epson Event Manager
- Epson error code 341
- Epson ET-5800 341
- Epson ET-5805 341
- Epson L6550 341
- Se ha producido un error de comunicación escanear a PC
What it means
In Epson's User's Guide for the ET-5800, ET-5805, and L6550 series ('Error Code is Displayed on the Status Menu' and 'Scanning Originals to a Computer'), code 341 appears in Job/Status > Job Status with the message 'A communication error has occurred' when a Scan > Computer job fails. Other Epson printer families may use different status codes or menus, and code 341 alone never proves the scanner unit or any hardware part is faulty.
Warnings and stop conditions
- Loweditorial warning
On Windows 7 or later and OS X El Capitan or later, you can also start scanning directly from your computer using Epson ScanSmart instead of the printer panel.
Evidence: Epson ET-5800 series: Scanning Originals to a Computer
Symptoms and causes
Probable causes · in order
- Loose USB cable or dropped network connection to the computerCommon
The USB cable between the printer and computer is disconnected, or the printer has lost its Wi-Fi or Ethernet connection to the local network.
Evidence: Epson ET-5800 series: Error Code is Displayed on the Status Menu · Epson ET-5800 series: Printing a Network Connection Report
- Epson Event Manager or Epson ScanSmart and Epson Scan 2 are missingCommon
Starting a scan from the printer control panel (Scan > Computer) requires Epson Event Manager or Epson ScanSmart along with Epson Scan 2 on the computer.
Evidence: Epson ET-5800 series: Error Code is Displayed on the Status Menu · Epson ET-5800 series: Scanning Originals to a Computer
- Destination computer is asleep, powered off, or blocking trafficPossible
If the target computer selected on the control panel enters sleep mode or a firewall blocks incoming connections, communication drops with code 341.
Evidence: Epson ET-5800 series: Error Code is Displayed on the Status Menu · Epson ET-5800 series: Scanning Originals to a Computer
Virtual technician
Does 341 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Epson ET-5800 series: Error Code is Displayed on the Status Menu
Epson · 2023 · official_doc
- 2
Epson ET-5800 series: El código de error se muestra en el menú de estado
Epson · 2023 · official_doc
- 3
Epson ET-5800 series: Escanear originales en un ordenador
Epson · 2023 · official_doc
- 4
Epson ET-5800 series: Scanning Originals to a Computer
Epson · 2023 · official_doc
- 5
Epson ET-5800 series: Impresión de un informe de conexión de red
Epson · 2023 · official_doc
- 6
Epson ET-5800 series: Printing a Network Connection Report
Epson · 2023 · official_doc
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