Zebra Technologies PT400 Printer User Manual


 
There are long tracks of missing print (blank vertical lines) on
several labels.
The printhead is dirty. Clean the printhead according to the instructions
inPreventiveMaintenance.
The printhead elements are damaged. Call a qualified service technician
to replace the printhead.
Misregistration of labels (the printing does not start at the top of
the label) and misprinting of 1 to 3 labels.
The media may not be threaded under the media guides. Refer to
“LoadingtheMediainGettingReadytoPrint.
The printer needs to be calibrated. Refer to Calibration.
Printhead pressure needs to be adjusted. Follow the instructions in
“AdjustingthePrintheadPressureinGettingReadytoPrint.
The correct media sensor may not be activated. In manual calibration,
select the media sensing method for the labels you are using (refer to
your label preparation software user’s manual).
A label format was sent to, but not recognized by, the printer.
Is the printer in pause mode? If so, press the Feed button.
IftheLEDsareonorflashing,referto“Help!TheLEDsare
On/Off/Flashing!inTroubleshooting.
Makesurethedatacableisinstalledcorrectly.Also,makesureyouare
using a null modem cable between the printer’s adapter cable and the
computer(seeFigure19),ortheappropriatenullmodemcable.
A communications problem has occurred. First, make sure that the
correct communications port on the computer is selected. Next, verify
that the same handshaking is in use by both the printer and the computer.
Then, ensure that the communication parameters of the printer and the
computermatch.Referto“CommunicatingwiththePrinterinGetting
Ready to Print.
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