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Geoff Quickfall · 04-12-2019, 07:10 AM

Of course the ribbon ink had totally dried up. So a shot of me rewinding the feed spool and soaking it in 90% isopropyl alcohol. Used to do this with dads 1960s office Remington at university. Couldn’t afford new ink ribbons. Of course I wonder if replacements can be found and wound on to the HP 46 spools. I will look into it!

[Image: 8B5ED41D-C4D3-474C-9449-E9055D0C5403_zps3klnp9po.jpeg]

[Image: 8B5ED41D-C4D3-474C-9449-E9055D0C5403_zps3klnp9po.jpeg]

Shot of the reenergized ribbon, negative numbers in red and positive in black:

[Image: 7962200E-0962-4D99-AC63-18521C7962D9_zps2f8cobvh.jpeg]

Compare the above to the before shot of the printer contrast:

[Image: 2D6F2128-7803-4008-994A-FECA33711B80_zpsamsafo1w.jpeg]

Those of you not familiar this is a desktop HP 45 with print capability but no ‘hidden timer’.

Completed and reassembled:

[Image: 33054080-C102-439A-A595-5DBE43AACE3A_zpscsvq2zwb.jpeg]

[Image: 33054080-C102-439A-A595-5DBE43AACE3A_zpscsvq2zwb.jpeg]

I was fortunate with this machine. The only failure was in the far right 5 LED block and the dried ink ribbon. The case and PCA were clean. I will be taking the machine completely apart as the printer probably could do with a lube job! Also checked the big electrolytic caps and they were within 5% so I put them back in. Will replace them later.

Cheers, Geoff