Samsung ML-2510 Monochrome Laser Printer
Great reliable printer. Works OK in my home office until recently, replaced with color one now. Cartridge near the end of toner (red light blinking) but still print acceptable quality - see picture. Worked with Windows 7 and Win 10. Connects to a computer via USB or parallel port. See my other postings if you need network print server.
Manual is here: https://h10032.www1.hp.com/ctg/Manual/c05766271.pdf
Due a lot of spam on craigslist I only reply to inquiries that show understanding of what is offered. (No: "Hi I'm ready to pickup your item today.")