Repair work on the mechanics of the thermal printer HP-82143A

[Karl-Ludwig Butte]

Dear All,

I actually wanted to point out my new article about repair work on the mechanics of the HP-82143A thermal printer, which should be available for download in the article forum again (like its companion article about a Test-bench for the HP-Thermal-Printing-unit. Unfortunately, the upload to the article forum doesn't work. I've already asked Dave Hicks, but haven't received a response yet.
Therefore, you can find the abstract of the article below and if you're interested, you can send me a PM and I'll send you the PDF-file of the article. The article is again available in German and English. Please state in which language you would like to read it.

Abstract:
Along with the HP-41C, the HP-82143A thermal printer was introduced on July 1, 1979. Even with the proverbial HP quality of the time, it should come as no surprise that after 45 years, one or two parts of the printing mechanism need to be replaced. HP has published the "HP 82143A Printer Service Manual" for this purpose. There are also numerous printed instructions and videos on the Internet. "Armed" with some of these, I set about replacing the rubber pressure rollers for the paper transport, which were no longer functioning, and came across a number of pitfalls and omissions in these instructions, some of which led to serious problems. In the following article, I would like to try to describe the disassembly, repair and reassembly of the printer as precisely as possible so that you, dear reader, can (hopefully) be spared these problems and the headaches associated with them.

Best regards
Karl

P.S.: Any hint how to get the article uploaded into the Article Forum will be very much appreciated.