Zebra Z4m Barcode printer

With a matrix printer it may be easier to scan the barcode as a .jpg picture, then print the picture, which will include the bars and the digits

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.

Try and cycle power.

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 can be on the software that bild the label format, not on the printer.

You will need to send the data using ZPL or the printer won't recognize it , if you don't have experience in this area print through the Zebra Print Driver should work. In your application use Barcode 128 as the font and see how it goes

Yasemin, the most practical solution is to design your label on a software like a label matrix or zebra designer and print to a file and have the ZPL codes. Roberto Martinez Mexico [email protected]

Indeed, I2of5 is numeric, use the 3of9 or 128 A or B to encode alphanumeric characters. Roberto Martinez Mexico [email protected]

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

As the label comes out of the printer...it sounds like your printing in picket fence mode (vertical bars). You most likely have 1 or more pixels out on the printhead...try cleaning first...if that fails... you will have to replace the printhead.