Hi all~ my zebra printer print blank non-stop everytime power on printer. we need send jobs first just can power on printer to stop printing blank non-stop.

Hi, if is the vertical line, its the print head that need to be replaced,
try to clean the print head and try this to confirm:
turn printer off, press PAUSE button and at the same time, power on, don't release the button, please wait until printer LCD screen come on, then release button. It will print the PAUSE test and after few 3-4 prints, u can turn off and on again otherwise printer not ready to print your labels until u restart it. (pause test stops after 10-15 labels). this pause print just show how the print head is and if come with vertical lines, u will need to replace. other idea is (if u can) turn the bar code different position or on vertical way at label format. Thanks.

UPS VOLTEGE PROBLEM PLEASE INSTALL HIGH VOLTGE UPS

You need to calibrate. Hold down the feed key while powering the printer on, then let go. The printer will calibrate, print a config label, then fo into dump mode. Press the fee key again to go out of dump. Of your issue persists, there could be a problem with yoru media, or with the commands that you are sending to the printer.

Disable start up calibration maybe?

As the previous expert has stated, with the printer paused, press the cancel key to cancel the job. One thing to note, is depending on how your software sends the print jobs, you may say print 1000 labels, but the software sends it one at a time, so basically you have 1000 print jobs in the printer. If you pause the printer, press and hold the cancel key. Hold it for about 2 mins. This should clear the buffer.

Make sure y have the right driver for your os.

Check if you have " send Form Feed after each file" is enabled (or yes) in your print queue

try to reset to factory defult,
run calibration and sensor profile.
if dont help,
it is possible that the power suply or logic board is faulty.

better to send it for repair

rchamorro,
Sometimes, resetting the printer to the factory defaults solves some of the problems. For troublehooting and to overwrite all stored parameters, send the ^default command.