Troubleshooting

Epson TM-m30III troubleshooting: lights, errors and fixes

What the TM-m30III LEDs mean and how to fix paper out, cover and cutter errors, jams, blank receipts, network problems and Wi-Fi or Bluetooth issues.

10 min Difficulty: Easy Updated: By SCANSHOP team
In this guide

    The TM-m30III reports its state with panel LEDs. Find what you see below and open the matching fix.

    12345
    Standard model LEDs, simplified: 1 Power · 2 Error · 3 Paper · 4 Ethernet · 5 Wi-Fi. The Wi-Fi + Bluetooth model adds a Bluetooth LED.

    Find your symptom

    What you see Likely cause Fix
    No LEDs at all No power Fix 1 →
    Power, Error and Paper LEDs on, or Paper LED on alone Paper out, or the roll is nearly empty Fix 2 →
    Power and Error LEDs on, Paper LED off Cover open, cutter blocked or head too hot Fix 3 →
    Paper stuck, or the cover won't open Paper jam Fix 4 →
    Error LED keeps flashing Unrecoverable error Fix 5 →
    Error LED flashes briefly after you plug something in Unsupported device or USB hub Fix 6 →
    Receipts come out blank or faint Roll the wrong way round, dirty head or unsuitable paper Fix 7 →
    Only the Power LED on, but nothing prints or the app can't find the printer Connection, IP address or security settings Fix 8 →
    Wi-Fi LED off or flashing, or Bluetooth won't pair Wireless setup Fix 9 →

    Fixes

    1. Printer won't switch onNo LEDs light up

    CauseNo power reaches the printer, or the power button wasn't held long enough.

    Fix

    1. Check the AC cable at the adapter and the socket, and the DC cable at the rear of the printer, under the covers.
    2. Hold the power button until the Power LED lights. A flashing Power LED means the printer is starting its network, shutting down or updating firmware: wait and don't unplug it.
    2. Paper out or nearly outPower, Error and Paper LEDs on, or Paper LED alone

    CauseWith the Error LED also on, no paper is detected. With only the Paper LED, the roll is nearly empty (about 24 mm of roll diameter left).

    Fix

    1. Open the roll paper cover with the cover open lever and remove the empty core.
    2. Drop in a new 80 mm roll, up to 83 mm in diameter, so it unrolls as in Epson's loading diagram.
    3. Pull out a little paper and close the cover. The printer cuts the paper and goes back online.
    3. Error LED on, printer stopsPower and Error LEDs on, Paper LED off

    CauseThe roll paper cover is open, the autocutter blade is blocked, paper has jammed, or the head or motor is too hot.

    Fix

    1. Close the roll paper cover firmly.
    2. If it was closed, open it and remove any jammed receipt or foreign object, such as a staple, near the cutter. The printer recovers when you close the cover.
    3. After long print runs, let the printer cool for a few minutes. Temperature errors clear by themselves. Don't touch the hot thermal head.
    4. Paper jam or cover won't openPaper caught in the printer

    CauseA receipt is caught in the paper path or cutter, often because it was held while printing or before the cut finished.

    Fix

    1. Switch the printer off and open the roll paper cover.
    2. Remove the jammed paper. Never pull it out forcibly.
    3. Close the cover and switch on. If the cover won't open with the lever, restart the printer and try again.
    5. Error LED keeps flashingPower on, Error flashing

    CauseAn unrecoverable error, such as a voltage, CPU or communication unit error.

    Fix

    1. Switch the printer off at once: hold the power button until the Power LED flashes, or unplug the DC cable.
    2. Wait 10 seconds, then switch it on again.
    3. If the Error LED still flashes, the printer may be faulty. Contact us for service.
    6. Error LED flashes after connecting a deviceAbout 5 seconds of flashing, then off

    CauseThe device on the USB-A or USB-C port isn't supported, or it is connected through a USB hub.

    Fix

    1. Remove the device or hub.
    2. Connect only supported accessories directly, such as the OT-WL06, a DM-D30 or DM-D70 customer display, or a barcode scanner.
    7. Blank or faint receiptsPaper moves, but little or nothing is printed

    CauseThermal paper only darkens on its coated side, so a roll loaded the wrong way round prints blank receipts. Faint print usually means a dirty thermal head.

    Fix

    1. Turn the roll over and reload it as in Epson's loading diagram.
    2. Use thermal paper 48–80 µm thick and adjust the print density to the paper type.
    3. Clean the cooled thermal head with a cotton swab moistened with ethanol or isopropyl alcohol, with the printer off. Epson suggests doing this about every three months.
    8. Printer not found or nothing printsOnly the Power LED on, no errors

    CauseThe printer works, but the computer, tablet or POS app can't reach it.

    Fix

    1. Run a self-test: hold Feed while you switch the printer on. If it prints, the problem is the connection.
    2. Check the Ethernet LED: steady means connected, flashing means still getting an IP address, off means no link.
    3. Print a status sheet (open the cover, hold Feed for one second, close the cover, follow the "Next Action" guidance). Check that the IP address is in the same range as your device and enter it in your app or driver. On Windows, check the port as shown in our driver guide.
    4. Check "Security Mode" on the status sheet. With "RED" (EU printers), Secure Printing is on by default and only encrypted network printing works: unencrypted jobs, such as raw printing on port 9100, don't print. Use RED-compatible Epson software, such as Epson Advanced Printer Driver 6 version 6.10 or later, and ask your POS app supplier whether their app supports it.

    Secure Printing can be switched off in Web Config under Advanced Settings › Print › Secure Printing, with the administrator password ("Initial Password:" on the status sheet). Epson does not recommend this: it allows unencrypted communication and is only an option on a secure, managed network. Loyverse POS can't find the printer? Follow our Loyverse setup guide.

    9. Wi-Fi or Bluetooth won't connectWi-Fi LED off or flashing, or no pairing

    CauseC31CK50112 has no built-in radio: Wi-Fi needs the OT-WL06 unit, and Bluetooth needs the Wi-Fi + Bluetooth model.

    Fix

    1. Unplug the Ethernet cable. While it is connected, wireless LAN stays off.
    2. Check that Wireless Chip Mode is set to Option Unit and the OT-WL06 is in the USB-A port.
    3. Re-enter the network name and password, or reset the network settings (see the FAQ below) and start again.
    4. Bluetooth model: print the status sheet and pair within one minute. Bluetooth is off while Option Unit mode is in use.

    Full steps: Connect the TM-m30III to Wi-Fi or Bluetooth.

    Frequently asked questions

    How do I reset the TM-m30III network settings?

    Switch the printer off, close the roll paper cover and remove the bottom cover. Hold the status sheet button while you switch the printer on; it restarts with the factory network settings.

    Why are my receipts blank?

    The roll is most likely loaded the wrong way round. Turn it over and reload it.

    Can I tell the exact error from the LED pattern?

    Not always. Epson notes that the LED patterns don't identify every error, so check the cover, paper and cutter first, then restart the printer.

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    Used in this guide

    Compatible consumables and accessories for the Epson TM-m30III.

    Compatible receipt rolls

    ProductWidth Length Roll ØCorePrice
    Receipt Rolls, Zebra, Z-Perform 1000D 60 Receipt, Thermal Paper, 80 mm, 40 mm, 12.7 mm, White (3013286) Zebra Z-Perform 1000D 60 Receipt301328680 mm 15.54 m 40 mm12.7 mm22,00 zł+VATIn stock
    Receipt Rolls, Zebra, Z-Perform 1000D 80 Receipt, Thermal Paper, 80 mm, 40 mm, 12.7 mm, White (3012973) Zebra Z-Perform 1000D 80 Receipt301297380 mm — 40 mm12.7 mm17,00 zł+VATIn stock
    Receipt Rolls, Zebra, Z-Perform 1000D 80 Receipt, Thermal Paper, 80 mm, 40 mm, 12.7 mm, White (3013287) Zebra Z-Perform 1000D 80 Receipt301328780 mm 11.28 m 40 mm12.7 mm18,00 zł+VATIn stock
    Receipt Rolls, Zebra, Z-Perform 1000D 60 Receipt, Thermal Paper, 80 mm, 50 mm, 12.7 mm, White (3014861-T) Zebra Z-Perform 1000D 60 Receipt3014861-T80 mm 26.52 m 50 mm12.7 mm33,00 zł+VATOut of stock View
    Receipt Rolls, Citizen, Thermal Paper, 80 mm, 56 mm, 12.7 mm, White (3623200) Citizen Thermal Paper362320080 mm — 56 mm12.7 mm291,00 zł+VATOut of stock View
    Receipt Rolls, Zebra, Z-Perform 1000D 60 Receipt, Thermal Paper, 58 mm, 40 mm, 12.7 mm, White (3013689) Zebra Z-Perform 1000D 60 Receipt301368958 mm 15.54 m 40 mm12.7 mm13,00 zł+VATIn stock
    Receipt Rolls, Zebra, Z-Perform 1000D 80 Receipt, Thermal Paper, 58 mm, 40 mm, 12.7 mm, White (3013690) Zebra Z-Perform 1000D 80 Receipt301369058 mm 11.28 m 40 mm12.7 mm12,00 zł+VATOut of stock View
    Receipt Rolls, Citizen, Thermal Paper, 58 mm, 48 mm, 12.7 mm, White (3621900) Citizen Thermal Paper362190058 mm — 48 mm12.7 mm202,00 zł+VATOut of stock View
    Receipt Rolls, Zebra, Z-Perform 1000D 60 Receipt, Thermal Paper, 57 mm, 40 mm, 19 mm, White (3007158-T) Zebra Z-Perform 1000D 60 Receipt3007158-T57 mm 12.19 m 40 mm19 mm14,00 zł+VATOut of stock View
    Thermal paper 80mm / 80m 12 g, for kiosk printers Thermal paper 80mm / 80m 12 gKK01926280 mm 80 m —12 mm42,00 zł+VATIn stock

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    Still stuck?

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    Epson TM-m30III POS Receipt Printer (C31CK50112)1.019,00 zł+VAT View product