The printer model is ZEBRA ZT 420.
The following lpr based commands are failing:
echo ^XA^CI28^BY9,2.0,500^FT550,1600^XB^BCN,500,N,N,N,N^FWB^FH^FD>:_70_61_58_31_62_7a_37_39_67_6b_72^FS^LRN^FT675,1250^A0N,150^FWB^FH^FD_70_61_58_31_62_7a_37_39_67_6b_72^FS^XZ' | lpr -l
echo ^XA^CI28^BY9,2.0,500^FT550,1600^XB^BCN,500,N,N,N,N^FWB^FH^FD>:_70_61_58_31_62_7a_37_39_67_6b_72^FS^LRN^FT675,1250^A0N,150^FWB^FH^FD_70_61_58_31_62_7a_37_39_67_6b_72^FS^XZ' | lp -o raw
This issue is that the printer stops printing for subsequent print commands(it has to be manually turned off and on to accept print requests again), but this issue doesn't occur with some other ZPL strings.
And writing to the lp file is works every time, i.e., the below command:
echo ^XA^CI28^BY9,2.0,500^FT550,1600^XB^BCN,500,N,N,N,N^FWB^FH^FD>:_70_61_58_31_62_7a_37_39_67_6b_72^FS^LRN^FT675,1250^A0N,150^FWB^FH^FD_70_61_58_31_62_7a_37_39_67_6b_72^FS^XZ' > /dev/usb/lp0
Could you please help understanding why this is happening and if theres anyway to prevent the printer from stopping printing after every lpr command?