HP 82162A thermal printer

[4ster]

Thats my thread linked above and I had similar problems as the OP.

I had an old pack rebuilt and it worked for a few weeks, then quit.

It turned out the battery store did not do a good job of spot welding the pack contacts and the pack had an intermittent open short. It was good enough to light the power and battery lights, but not to effectively drive the print head and the paper advance. Voltmeter probes on the battery contacts would show correct voltage, but a light touch (like the force exerted by the printer contacts) would not close the short.

The battery store inspected the pack and re-welded the jumpers between the cells, fixing the problem.

Something to rule out.

If the pressure of the printer contacts is less than in the other devices it could be your problem. The next thing to check might be the wiring path from the contacts to the board in the printer, maybe a sketchy solder connection finally failed.