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Problem
There are weak spots on the
printout.
The printout is dark or there is
excessive bleeding on the
media
There are dark lines along the
media path
There are white vertical lines on
the printout
Part of a dotted line is missing
The inner edge of the printout is
missing
The content on the printout is
compressed
Nothing shows up on the
thermal transfer printout.
The ribbon breaks
The ribbon wrinkles
The printer is connected to the
PC using a virtual COM port
and printing stops. There are no
errors.
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Possible Solution
Try these possible solutions in order:
•
There may be foreign particles on the media. Clean or replace
the media.
•
Make sure that your media and ribbon are compatible.
•
Make sure that you are using high quality media and ribbon.
•
The contrast may be too low. Increase the contrast.
Try these possible solutions in order:
•
Make sure your media > print quality setting is appropriate for
the type of media you are using.
•
The contrast may be too high. Decrease the contrast.
•
The printhead pressure may be too high. Decrease the
printhead pressure.
The printhead may be dirty. Clean the printhead.
Try these possible solutions in order:
•
The printhead may be dirty. Clean the printhead.
•
There may be missing dots on the printhead. Replace the
printhead.
Try these possible solutions in order:
•
The printhead may be failing. Replace the printhead.
Try these possible solutions in order:
•
The media may not be properly installed or aligned. Reload the
media.
•
The media margin or X-start parameter may be set too low.
Increase the setting.
The print speed may be too high. Lower the print speed or adjust
the printhead pressure.
The ink-coated side of the ribbon may not be facing the media.
Reload the ribbon.
Try these possible solutions in order:
•
Make sure your media setting is appropriate for the type of
media you are using.
•
Make sure that the ribbon is fitted correctly. Reload the
ribbon.
Try these possible solutions in order:
•
It is possible that the ribbon was not loaded correctly, check
the Ribbon Ink In and Ink Out Switch is in the correct position.
•
Darkness setting may be too high, reduce darkness setting
•
You may need to adjust the media edge guide and use/adjust
the Media roll holder.
•
Incorrect or uneven printhead pressure, adjust Printhead
Pressure and Toggle Position.
•
Adjust the ribbon tension bar, turn the tension bar screw
clockwise to move the bar lower and decrease the tension.
turn the tension bar screw counterclockwise to move the bar
upper and increase the tension.
Make sure that bidirectional support is disabled. From the printer
properties dialog box, click the Ports tab, and then clear the
Enable bidirectional support check box.
PX940 User Guide
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