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Troubleshooting Guide | Label Printer

This guide provides step-by-step instructions for setting up your receipt printer, maintaining performance, and resolving common issues.

Troubleshooting

Printer Is Not Printing

If an order is not printing a label, first check the following:
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1. Check The Printer's Connection

Confirm that the label printer is connected to the network.

The printer can connect through either WiFi or Ethernet.

If the printer uses WiFi, see Printer Is Not Connecting.

If the printer uses Ethernet, see the Ethernet troubleshooting steps in Printer Is Not Connecting.
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2. Check The Printer Cover

Make sure the printer cover is completely closed.

A partially open cover can prevent the printer from printing.
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3. Check The Label Roll

Make sure a label roll is loaded correctly and that labels can feed through the printer.

See Loading A Label Roll for the correct label orientation.
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4. Check For A Paper Jam

Open the printer cover and check whether a label is stuck inside the printer.

If you find a jam, see Labels Are Jammed.
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5. Power Cycle The Printer

If the printer still does not print, follow the steps in Power Cycling The Printer.
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6. Check Order Size

Orders containing more than 150 items will not print automatically.

For these orders, the label must be printed manually through your SnackOS tablet.

If a normal-sized order still does not print after completing the troubleshooting steps above, contact Snackpass Support.

Printer Is Printing Blank Labels

If the printer feeds labels normally but the labels come out completely blank, the label roll is likely loaded upside down.

Thermal labels only have a heat-sensitive coating on one side. The printable side must face the thermal print head.
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1. Remove The Label Roll

Open the printer cover and remove the label roll.
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2. Check The Printable Side

Use your fingernail or a key to quickly scratch the surface of a label.

  • If the scratched area leaves a black mark, that is the printable side.

  • The printable side must face upward as the label feeds out of the printer.

3. Reload The Label Roll

Make sure the label roll feeds from the bottom of the roll, not over the top.
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When viewed from the side, the paper should form a "J" shape, not a "P" shape.

The printable side of the labels should face upward toward the thermal print head as the labels exit the printer. After loading the roll, print a test label.

Labels Are Blurry

If the printed content looks faded, blurry, or as though the printer is running out of ink, clean the thermal print head and platen roller.
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Thermal printers do not use ink. Poor print quality can occur when the thermal print head or platen roller becomes dirty.
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Labels Are Misaligned Or Not Centered

If the printed content appears too far to the left or right instead of being centered on the label, the plastic label guard may not be positioned correctly.
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1. Open The Printer Cover

Open the label printer cover to access the label roll.
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2. Locate The Plastic Label Guard

Locate the plastic guard positioned to the side of the label roll.
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3. Reposition The Guard

Make sure the plastic guard is correctly positioned and securely pinned into place.

You should hear a click when the guard is correctly positioned.

Once the guard is secured, close the printer cover and print a test label.

Labels Are Jammed

If a label becomes stuck inside the printer:
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1. Turn Off And Unplug The Printer

Before removing a jam, turn the printer off and unplug it from the power outlet.
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2. Open The Printer Cover

Open the label printer cover and locate the jammed label.
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3. Remove The Jammed Label

Carefully and gently pull the jammed label free.

  • Do not pull the label forcefully.

  • If necessary, remove the entire label roll first to make the jam easier to access.

  • Be careful not to touch, bend, or damage the cutting blades inside the printer.

If removing the entire roll makes it easier to safely remove the jam, do so.
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4. Check The Paper Path

Make sure no pieces of label or adhesive remain inside the printer.

You can manually feed a label through the printer or remove a small section of label material before closing the cover.
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5. Reload The Label Roll

Reload the label roll correctly and close the printer cover.

Power the printer back on and try printing again.

If the printer continues to jam, contact Snackpass Support.

Printer Is Not Connecting

The label printer can connect through either WiFi or Ethernet.

Before troubleshooting, confirm which connection type the printer is using.
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WiFi Connection

If the printer is connected through WiFi and cannot connect to the network, reset the printer's WiFi connection.

Ethernet Connection

If the printer is connected through Ethernet:

  1. Disconnect the ethernet cable from the printer.

  2. Reconnect the ethernet cable securely.

  3. If the printer still does not connect, try a different ethernet port on the modem or router.

  4. If the issue persists, try a different ethernet cable.

  5. Check the printer connection again.

If the printer still cannot connect after trying another Ethernet port and cable, contact Snackpass Support.

Printer Will Not Turn On

1. Check The Power Connection

Make sure the printer's power cable is securely connected to both the printer and a working 120V wall outlet.
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2. Try Powering On The Printer

Locate the physical power button on the front face of the printer, near the indicator lights and Feed button. Press the power button once to turn the printer on.
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3. If The Printer Is Already On But Needs To Be Restarted

If the printer is frozen or unresponsive, follow the Power Cycling The Printer procedure. If the printer still will not turn on after confirming the power connection and completing a power cycle, contact Snackpass Support.


Troubleshooting Procedures

Power Cycling The Printer

Power cycling can help resolve temporary printer issues.

  1. Press and hold the power button on the front face of the printer until all indicator lights turn off.
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  2. The printer may take approximately 1 minute to fully turn off.

  3. Do not unplug the printer before all indicator lights have turned off.

  4. Once the printer is completely off, unplug the power cable.

  5. Wait 15 seconds.

  6. Plug the printer back into a working 120V wall outlet.

  7. Press the power button once to turn the printer back on.

  8. Try printing again.

Resetting The Printer's WiFi Connection

Use this procedure when the printer is connected through WiFi and cannot establish a network connection.
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Important: The printer must be completely powered off before starting this procedure.
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1. Locate The SW Button

The SW button is a recessed pinhole on the back of the printer, in the bottom-left corner, directly below the cash drawer port.
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Use a paperclip or pen to access the button.
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2. Start The Reset

  1. Make sure the printer is completely powered off.

  2. Press and hold the SW button with a paperclip or pen.

  3. While continuing to hold the SW button, press the printer's power button once.

  4. Continue holding the SW button after the printer turns on.

  5. Keep holding the SW button until a label prints that says “RESETTING TO FACTORY DEFAULT.”

  6. Once that label prints, release the SW button.

  7. Wait for the factory reset to finish.

3. Confirm The Reset Is Complete

The reset is complete when the printer produces the final label containing a QR code and the IP address 192.168.192.168.
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Once this final label prints, contact Snackpass Support before continuing so Support can provide the next steps for reconnecting the printer.

Label Printer Maintenance

Regular cleaning helps maintain print quality and prevent printing issues.

Before cleaning the printer, turn it off and unplug it from the power outlet.
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Cleaning The Thermal Print Head

The thermal print head is a small, black horizontal strip inside the paper feed path. To clean it:

  1. Turn off and unplug the printer.

  2. Open the printer cover.
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  3. Locate the thermal print head inside the paper feed path.

  4. Apply alcohol directly to a cotton swab.
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  5. Gently wipe the thermal print head with the cotton swab.

  6. Allow the area to dry briefly before using the printer again.

Cleaning The Platen Roller

The platen roller is the cylindrical rubber component located near the thermal print head. To clean it:

  1. Make sure the printer is turned off and unplugged.

  2. Open the printer cover.
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  3. Use a slightly damp cloth to remove dust or glue.

  4. Clean around the black mark sensor if needed.

  5. Rotate the roller manually while cleaning to clean its entire surface.

  6. Allow it to dry briefly before using the printer again.

Recommended Cleaning Kits

Snackpass recommends the following:

Loading A Label Roll

Load the label roll so that:
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  • The paper feeds from the bottom/underneath side of the roll.

  • The paper forms a "J" shape when viewed from the side, rather than a "P" shape.

  • The printable, thermal side of the label faces upward as it exits the printer.

  • The printable side faces the thermal print head.

If labels are coming out completely blank, see Printer Is Printing Blank Labels.

Where To Purchase Label Rolls

To purchase approved label rolls for L100 printers:

  1. Create an account and specify "Snackpass Customer" in the message section.

  2. Wait for your account to be approved. If needed, follow up with [email protected].

  3. Order HT-14 58x250 label rolls for L100 printers.

Each case contains 27 rolls, with approximately 2,100 labels per roll (approximately 56,700 labels per case).
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Shipping: Included with the order and typically takes 2–3 days.
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Note: Label rolls may also be purchased from external vendors, provided they are from the approved label roll list and are compatible with L100 printers. Using label rolls from brands that are not on the approved list may void your printer's warranty. If purchasing from another provider, always refer to the approved label roll list to ensure compatibility and maintain warranty coverage.

When To Contact Snackpass Support

Contact Snackpass Support if:

  • The printer still does not print after completing the applicable troubleshooting steps.

  • The printer will not turn on after checking the power connection and power cycling it.

  • The printer continues to produce blank labels after confirming the roll is loaded correctly.

  • Labels remain blurry after cleaning the thermal print head and platen roller.

  • Labels remain misaligned after repositioning the plastic label guard.

  • The printer repeatedly jams.

  • The printer cannot connect after Ethernet or WiFi troubleshooting.

  • The printer requires additional assistance after completing a WiFi factory reset.

  • The printer has physical damage or another issue that cannot be resolved using this guide.

If you have any trouble following this troubleshooting process, please contact the Snackpass customer support team at +1 866 868 2146 (call) or message us using the Partner App!

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