I have a Zebra Z4M Plus using Bar One Pro Plus v6.0 I have a label with a text field where that field is not printing completely. Even though text above and below it print fine

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.

meedham702: Better use a label designer software to do it. You can use Label Matrix, Bar Tender or Zebra Designer Pro.

Roberto Martinez
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Check for missing teeth on the main drive belt.

This is I think due to the data being sent to your printer. On a Z4m the width is 4 inch and whatever is beyond is not printed. On your Z6M the coordinates are valid so your printer will print the code.

The problem with this type of printer is that when you use true type fonts, they are downloaded as graphics. If you have a field which changes on each label there is an overflow of memory. The solution is to use internal fonts for continuously changing datas

Is the length of the label correct on the configuration print out?
Else try t check if there isn't a feed or print adjust in the parameters

Check the "Dithering" setting in the printer driver. Turning "Dithering" on improves graphics but reduces speed of processing.

An unorthodox solution is to install an old driver. Another solution is to use with Codesoft the driver from www.seagullscientific.com, and with Zebra Designer, the Zebra Designer driver. If the printer is connected to the serial port, speeds up communication.
Roberto Martinez

What software are using? If you use or Zebra Designer Label Matrix, uses its own drivers. If you use another driver, verify that the graphics option is "dithering".
Roberto Martinez

this is a color printer or not