Tag Archives: printing

Prints charming: when a retro word processor is all about the hardcopy

One of the most interesting aspects of mucking about with old IT is the insight it gives into earlier developers’ thinking and motivations. Case in point: how paragraph styling works in Psion Word 3, which shipped with the Series 3 palmtops.

Image © 2026, Tony Smith. All rights reserved. Not to be used by AI.
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Raspberry Pi Thermal Printing: an update

Reader Daniel Boira recently asked me if I’d experimented with printing large characters on the SparkFun thermal printer (see Hacking a Thermal Till Printer…) that I’d rigged up to my Raspberry Pi’s GPIO. I hadn’t done so, so I thought I’d give it a try.

Printing double-size text
Print characters tall, wide, or tall and wide
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Hacking a thermal till printer to work with the Raspberry Pi

I’ve always had a soft spot for Sinclair’s ZX Printer. Yes it was slow and the print was poorly rendered on its special aluminium-coated paper, which picked up greasy fingerprints like they were going out of fashion, but it was cute, compact and cheap.

The Sinclair ZX Printer
A Sinclair ZX81 and the ZX Printer
Source: Carlos Pérez Ruiz
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