On Wednesday, 14 February 2018 23:24:42 UTC, Dave W wrote:
On 14/02/2018 21:40, tabbypurr wrote:
On Wednesday, 14 February 2018 21:36:29 UTC, Harry Bloomfield wrote:
tabbypurr brought next idea :

2 laser printers have sat unused for about 1 & 2 years. Both printed
flawlessly. On re-use they both have abysmal & unusable print quality, the
contrast is shot with grey patches all over the place. Is this normal in this
time frame? Or must it be due to chemical exposure?

Not normal. My HP 4000, with all the add-ons, has sat more or less
unused for 10 years. It gets fired up maybe every few months, to print
an occasional page and the output is always flawless. What does
deteriorate over many years, is paper handling rubber rollers.

that's what I thought. Thanks.


NT

There might be condensation which needs drying out. Also possibly dust
on the window through which the laser shines. The toner cartridge might
need a good shake.

RH is under 40% so it's not damp. I'll try shaking the cart up. thanks.


NT