I Purchased my HP Laser jet 2100 about 5 years ago and never had a problem with it. It has had plenty of use everyday for invoices and with it being HP its very cheap to run has you can easily get compatible cartridges for about £24 it lasts for about 3000 page depending on coverage.
The print quality is good at 1200 x 1200 dpi.
The paper tray holds about 200 sheets of 80gm paper.
It is also quite fast for normal office tasks at 10 pages per minute.
I would recommend this printer for general office jobs. But for large volume the paper collection point is not big enough it soon gets full and you finish up with loads of paper on the floor.
I would always buy HP laser printers has the build quality has never let me down this is my 5th HP Laser printer over the years.