I've had this printer since it was new. It is in excellent condition, and works great.
Here's a link to a description: https://en.wikipedia.org/wiki/HP_LaserJet_1020
We just changed computers, and the new computer doesn't have a driver for it, so I can't use it.
If you want to see it work, install the HP1020 driver on your laptop and bring it with you.
Also have a new unused HP larger size Q2612A toner cartridge for it, for $35.