On 30/01/2021 02:51, alan_m wrote:
On 29/01/2021 10:55, wrote:

+1
I've just cleaned the pick-up roller on my HP1320. FWIW I found IPA
worked better than water (but test a small area first).


HP once sent out a paper pick up roller fix kit for one of their printers.

It was one of those green (dish) washing up scrubbing pads and was
pressed against the rotating roller to rough it up a bit. This was to
cure a problem where the paper wasn't being picked up.

Interesting, I've not seen one of those.

Back almost 20 years, HP sent me a very well designed and made kit for a
different paper pick up problem. It was actually a Canon printer, but
the mechanism was HP.

It consisted of a number of pieces of thick cardboard, scored and marked
for folding. It formed up to make a rectangular tube that fitted down
the almost vertical paper bay and another box that slid down inside it.
A sticky pad was attached, sticky side out, to the box, pushed down and
stuck, in exactly the right position, at the bottom of the bay. That
provided just enough friction for the paper to be taken one sheet at a
time by the roller, rather than 3 at a time and jamming, as the original
pad had worn away.