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c#printingzebra-printerszpl

Zebra printer printing extra labels

I am using ZPL to print from a Zebra printer (QLN420 model)

Label size is 4" wide and 2" inches length

But when I send a job for an image that is 4 x 2 to print, it prints 3 labels, first 2 are empty and last one gets the image

When I send a job for an image that is 4x6 it print correctly on 3 labels of 4x2

The printer is set to stop by mark, meaning it stops with a black mark on the back of the label. When pressing on the printer feed it prints only 1 4x2 but when printing with ZPL it prints 3 (2 empty and then the image

I tried using ^LL and set it manually but it didn't help

(I am using C# create the ZPL and to send to the printer)

Solution

  • What worked for me was to recalibrate the printer using this command:

    ! U1 setvar "media.type" "label"
! U1 setvar "media.sense_mode" "bar"
~jc^xa^jus^xz

    Read more on the command here: https://supportcommunity.zebra.com/s/article/Calibrating-Zebra-QLn-Series-Mobile-Printers?language=en_US