Common Zebra 105SL Ribbon Out Problems

The Zebra 105SL is a durable industrial barcode printer commonly used in manufacturing, warehousing, distribution, shipping, inventory, and production environments. Because many 105SL printers have been in service for years, Ribbon Out errors can come from both simple setup issues and age-related wear.

A Ribbon Out message does not always mean the ribbon is actually missing. It means the printer is not detecting ribbon the way it expects to. That can happen because of incorrect print mode, ribbon loading problems, sensor contamination, failed calibration, ribbon tracking issues, or internal hardware problems.

• Zebra 105SL says Ribbon Out when ribbon is installed.
• Ribbon Out appears after replacing ribbon.
• Ribbon Out appears after changing labels.
• Printer feeds labels but will not print.
• Printer prints blank labels.
• Ribbon wrinkles, drifts, or tears during printing.
• Ribbon feeds but the error does not clear.
• Thermal transfer mode is selected but ribbon is not being detected.
• Direct thermal labels are being used with thermal transfer settings.
• Ribbon sensor or related hardware may be dirty, blocked, damaged, or failing.

Zebra 105SL Ribbon Out Quick Reference

Use this table to connect the symptom you see with the first area to inspect.

Step 1: Confirm the Printer Should Be Using Ribbon

The Zebra 105SL can print in direct thermal mode or thermal transfer mode. Ribbon is only required when the printer is set up for thermal transfer printing. If the printer is configured for thermal transfer but no ribbon is installed, a Ribbon Out error is expected.

Print Mode Checks

• Confirm whether your labels require ribbon.
• If using ribbon, make sure thermal transfer mode is selected.
• If not using ribbon, set the printer to direct thermal mode.
• Check printer settings from the control panel.
• Check the driver and label software settings.
• Make sure software settings are not overriding the printer configuration.

Step 2: Reload the Ribbon Correctly

Incorrect ribbon loading is one of the most common causes of Ribbon Out errors on the Zebra 105SL. The ribbon must be installed on the correct spindle, routed under the printhead, and wound onto the take-up spindle correctly.

1. Open the printer media door.
2. Raise the printhead assembly.
3. Remove the ribbon and inspect it for damage, wrinkles, or slack.
4. Install the ribbon on the correct ribbon supply spindle.
5. Route the ribbon through the correct ribbon path.
6. Pull the ribbon under the printhead and toward the take-up spindle.
7. Attach the ribbon securely to the take-up spindle.
8. Rotate the take-up spindle to remove slack.
9. Close the printhead fully and test again.

Step 3: Check Ribbon Orientation

If the ribbon is installed backward, the printer may feed labels but produce blank output or poor print quality. This can sometimes be mistaken for a Ribbon Out issue because the printer is not producing usable print even though ribbon appears to be loaded.

Use a simple tape test to confirm which side of the ribbon is coated. Place a small piece of tape against the ribbon and pull it away. If ink transfers to the tape, that is the coated side.

Ribbon Orientation Checks

• Confirm the ribbon coating faces the correct direction for the 105SL.
• Make sure the ribbon is not loaded backward.
• Check that the ribbon is smooth under the printhead.
• Confirm the ribbon is not folded, wrinkled, or torn.
• Test with a known-good ribbon if available.

Step 4: Verify Ribbon Width and Compatibility

The ribbon should be compatible with the label material and wide enough to cover the printable area. If the ribbon is too narrow, poorly wound, or not compatible with the labels, the printer may produce poor output, ribbon wrinkle, or intermittent ribbon-related errors.

Step 5: Clean the Ribbon Sensor Area

Dust, label adhesive, ribbon fragments, and paper debris can interfere with the ribbon sensor. If the sensor cannot properly detect ribbon, the Zebra 105SL may continue showing Ribbon Out even when ribbon is loaded correctly.

Cleaning Checks

• Power off the printer before cleaning.
• Open the media door and raise the printhead assembly.
• Remove labels and ribbon if needed.
• Inspect the ribbon path and sensor area for debris.
• Clean the sensor area using approved printer cleaning supplies.
• Clean the printhead and platen roller while the printer is open.
• Reload supplies and run calibration before testing.

Step 6: Run Media and Ribbon Calibration

Calibration allows the Zebra 105SL to detect the loaded labels and ribbon correctly. If supplies were changed or the sensor readings are no longer accurate, calibration may be required to clear a Ribbon Out error.

When to Calibrate the 105SL

• After changing ribbon.
• After changing label size or label material.
• After switching from direct thermal to thermal transfer.
• After switching from thermal transfer to direct thermal.
• After cleaning sensors.
• After a ribbon jam or label jam.
• Any time media or ribbon detection errors appear.

Step 7: Check Driver and Label Software Settings

The printer control panel may be configured correctly, but the computer driver or label software can still send conflicting settings. This is common when a printer is shared between applications, workstations, or label formats.

Driver and Software Checks

• Confirm the Zebra 105SL driver is selected.
• Check the print method inside the driver.
• Verify thermal transfer mode if ribbon is being used.
• Verify direct thermal mode if no ribbon is being used.
• Check label size and media type settings.
• Confirm the label software is not overriding printer settings.
• Restart the printer after changing driver settings.

Step 8: Inspect Ribbon Tracking and Tension

Ribbon tracking problems can cause ribbon wrinkle, ribbon tear, uneven print quality, and intermittent ribbon detection issues. On older 105SL printers, worn spindles, pressure imbalance, or media alignment problems can make ribbon movement less consistent.

Ribbon Tracking Checks

• Make sure the ribbon is loaded straight.
• Remove slack from the ribbon path.
• Check that the ribbon take-up spindle is turning correctly.
• Confirm the ribbon is not drifting to one side.
• Check that labels are feeding straight through the printer.
• Inspect for worn or damaged ribbon spindles.
• Check printhead pressure if ribbon wrinkle is also present.

Step 9: Check for Printhead or Latch Problems

If the printhead assembly is not fully closed or the latch is not engaging correctly, the printer may not maintain proper pressure or sensor alignment. This can contribute to ribbon-related errors and print quality problems.

• Open and close the printhead assembly firmly.
• Confirm the latch locks completely.
• Check for labels, ribbon, or debris blocking the assembly.
• Inspect for worn latch components.
• Restart the printer after reseating the printhead assembly.

Step 10: When the Ribbon Out Error Still Does Not Clear

If print mode, ribbon loading, ribbon orientation, sensor cleaning, calibration, driver settings, and ribbon tracking have all been checked, the issue may require deeper diagnostics.

Possible Service-Related Causes

• Dirty, damaged, or failing ribbon sensor.
• Ribbon sensor cable issue.
• Loose internal connection.
• Ribbon take-up spindle problem.
• Printhead assembly not closing correctly.
• Faulty latch or alignment issue.
• Configuration memory issue.
• Main logic board problem.

Zebra 105SL Ribbon Out Troubleshooting Checklist

• Confirm the printer should be using ribbon.
• Set the printer to thermal transfer mode when ribbon is installed.
• Set the printer to direct thermal mode when no ribbon is used.
• Reload ribbon and confirm the correct ribbon path.
• Remove ribbon slack.
• Verify ribbon coating direction.
• Confirm ribbon width and compatibility.
• Clean the ribbon sensor area.
• Clean the printhead and platen roller.
• Run media and ribbon calibration.
• Check driver and label software settings.
• Inspect ribbon tracking and tension.
• Check the printhead latch and closure.
• Test with known-good labels and ribbon.

FAQ: Zebra 105SL Ribbon Out Error

Why does my Zebra 105SL say Ribbon Out when ribbon is installed?

The most common causes are incorrect print mode, ribbon loaded incorrectly, ribbon slack, a dirty ribbon sensor, calibration issues, or a ribbon sensor problem.

Can I use the Zebra 105SL without ribbon?

Yes, but only when using direct thermal labels and direct thermal mode. If the printer is set to thermal transfer mode, it will expect ribbon to be installed.

Why did the Ribbon Out error start after changing labels?

The printer settings may no longer match the loaded supplies. Check print mode, media type, label size, ribbon setup, and run calibration.

Can a dirty sensor cause a false Ribbon Out error?

Yes. Dust, adhesive, ribbon fragments, and label debris can prevent the ribbon sensor from detecting ribbon correctly.

Should I calibrate after changing ribbon?

Yes. Calibration is recommended after changing ribbon, labels, media type, or print mode.

Why is my Zebra 105SL printing blank labels?

Blank labels may be caused by wrong ribbon orientation, incorrect print mode, incompatible supplies, low darkness, or a printhead issue.

Why does my ribbon wrinkle on the 105SL?

Ribbon wrinkle can be caused by ribbon loading problems, poor tension, incorrect ribbon width, media alignment issues, printhead pressure imbalance, or worn mechanical parts.

When should the printer be serviced?

If ribbon loading, print mode, cleaning, calibration, and software settings are all correct but the Ribbon Out error continues, the printer may need inspection for sensor, cable, spindle, latch, or board-level issues.