Having problems with label creep on a new QLn320 printer

We are working with a Zebra QLn320 wireless label printer
with black mark 3” wide X 2” long labels

 

ZPL data string:

This prints 4 labels but label creep “down” a little on each
label (If I change to ^PQ1 and do it 4 times, the spacing is the same)

^MNN is for continuous labels (even though we have black
mark stock)

 

^XA

^PON

^MMT

^MNN

^LL406

^LH0,0

^XZ

^XA

^FT055,015^A0N,20,20^FH\^FDNEW TEST USING LL412^FS

^FO055,030^BY3^B3N,N,70,Y,N^FH\^FD152852^FS

^PQ4,0,1,Y

^XZ

 

This prints 4 blank labels then data on number 5

^MNM is supposed to be non-continuous black mark stock

 

^XA

^PON

^MNM

^XZ

^XA

^FT055,015^A0N,20,20^FH\^FDNEW TEST USING LL412^FS

^FO055,030^BY3^B3N,N,70,Y,N^FH\^FD152852^FS

^PQ1,0,1,Y

^XZ

 

 

Zebra Setup Utilities Screenshots included in attached document