Converting A 3-in-1 Printer Into A WiFi Scanner, Just Because


[Zaprodk] had trash-picked a defunct HP Envy 450 AIO, a 3-in-1 printer, scanner, and copier. Normally there usually isn’t much use for these unless you’re willing to hunt down the cartridges which it used, so your next step is to dismantle it for parts. That’s what he was going to do but then decided to see if he could remove as much as possible while leaving just the scanner.

Converted WiFi scanner boards

He ran into trouble after he’d “fixed” the lid-open sensor and unplugged pretty much everything. He was getting too many error messages on the LCD panel to reconfigure the WiFi. Luckily he could connect it to his computer using USB and do the configuration from there. One dubious mod involved turning an “unflipped” flexible flat cable into a “flipped” one by doing a little cutting, scraping and gluing. Check out his write-up for the full hack.

Interested in more dumpster hardware recovery? Check out how [Adil Malik] rescued a scope with some reverse engineering and an FPGA. And then there’s how [Matt] turned a dumpster-found WiFi router into a 3D printing server.



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