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I sent a couple zpl files to the printer to test it and it worked fine.
After that I was receiving base64 encoded zpl data from UPS and creating a file and sending it to the printer via a Java applet, and now any zpl commands or files I send to it are doing nothing.
I put it in diagnostic dump mode, sent some commands, then hit feed and it just printed a list of the commands it was sent.. so they're going through at least, but it won't print them.
It prints other data fine, for instance when sending an image to it.
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The LP 2844 and TLP 2844 are being replaced by the GC420d and GC420t.
Zebra printer not working issues usually occur due to temporary glitches or incorrect printer configuration. To resolve the issue, perform a power cycle, cancel the pending job or set the printer as default. If that does not work, check for driver issues or try to reset the device to factory default as a last resort.
RUN A PAUSE TEST PRINT Keep the pause button pressed until all the lights flash once. This will load 9999 test print labels into the printer. Release pause and you are ready for troubleshooting. Pause test is the best way to quickly determine if the printer is functioning properly.
You have to print EPL code to a LP2844 printer. It does not respond to ZPL code.
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My recent research seems to indicate the the LP-2844 and TLP-2844 are EPL only and the LP-2844Z and TLP-2844Z support ZPL. The non-Z versions, which were originally called the Eltron LP-2844, also have very little RAM.
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