Zebra TLP2844 - Pauses between printing each label. Does not print continuously. Stops at each label.

Problem:

We were trying to print labels from dynamics NAV. We would enter a qty of 10, and click print within NAV. 

The printer would then print 1 label. 

Pause. 

Print 1 label. 

Pause. 

for all 10 labels.

Attempted Solutions:

In our attempts to figure out a solution, we discovered a few things

Sending ZPL commands to the printer using passthrough codes worked

Sending EPL commands proved to be a challenge, as the passthrough commands did not work for EPL.

We used a slightly different model, an LP 2844, and we did not experience the issue at all, so it seems like a specific problem with this model. 

Eventual Solution:

What we eventually ended up doing was coding the NAV window so that it would generate a barcode and send it to the report as an image to a blob object.

We also coded it to kick open the print window so the user could enter the number of labels required in the "copies" field for the printer itself.

As long as we put the number into the "copies" field, it printed with no pauses.

It looked like the way NAV was coded to print, it would loop and send each label as a single separate job, causing this specific printer to pause after each label.

It had nothing to do with image size, or print speed, or usb speed, or firmware.