Tharo Systems V-425E - Troubleshooting Guide

6 Maintenance And Adjustment
6.5 Troubleshooting
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If any problems occur that are not described here, please contact your reseller.
NOTICE
♦ Check the power supply.
Problem
Solution
The printer is switched on but the LED
does not light up.
One or both LEDs lights up red and
printing has stopped
♦ Check for software setting or program command errors.
♦ Look for the error in Section 3.3 Error Alerts
♦ Check if the print mechanism is closed correctly.
The label stock passes through the printer
but no image is printed.
♦ Check that the ribbon is installed with the inked side facing the
label media.
♦ Select the correct printer driver.
♦ Select the correct label stock and print mode.
The label stock jams during printing.
♦ Clear the paper jam.
Check that the print head is clean.
There is no printed image on some parts
of the label.
♦ Check if there is any label or ribbon stuck on the thermal
print head.
♦ Check for errors in the application software.
♦ Check if the starting position has been set correctly
♦ Check the ribbon for wrinkles.
There is no printed image on part of the
label or the image is blurred.
♦ Check the thermal print head for dust or other dirt.
♦ Use the internal “~T” command to perform a Test Print and check if
the print head can print across the entire width.
♦ Check the quality of the print media.
The printed image is positioned
incorrectly.
♦ Check if there is paper or dust covering the label sensor.
♦ Check if the label stock is suitable for use. Contact your reseller.
♦ Check the paper guide.
Skipping labels during printing.
♦ Check the label height setting.
♦
♦
The printed image is blurred.
♦ Check the print darkness setting.
♦ Check if the print head is dirty.
The cutter does not cut off the labels in a
straight line.
♦ Check if the label stock is installed correctly.
The cutter does not cut off the labels
completely.
♦ Check if the label thickness exceeds 0.2 mm.
When using the cutter, the labels are not
fed through or are cut off incorrectly.
♦ Check if the cutter has been correctly installed.
♦ Check if the paper guides are sticky.
The label dispenser is not functioning
normally.
♦ Check if there is dust on the label dispenser sensor.
♦ Check if the label stock is installed properly.
Check if there is dust covering the label sensor.
Perform a label calibration.