Samsung rates the ML-1665 at 16ppm, which is a bit optimistic, but not that much. Our 5-page text document took 30 seconds to print, which gives a speed of exactly 10ppm, but on the longer, 20-page document, it managed 14.82ppm. This is only a page per minute slower than the Samsung ML-2525 and this machine exceeds the ML-2525 on the five-page text and graphics print, which it completes in 33 seconds (a speed of 9.09ppm).
A screen print took just 12 seconds and a 15 x 10cm photo on an A4 sheet finished in 10 seconds, irrespective of print mode. In quality terms, there’s not a lot to pick between the two, either. Both showed good levels of detail and managed to reproduce some of the shadow detail as well. There is an obvious dot mask to the image, but for general-purpose work the 600 x 1,200dpi images look fine.
Business graphics also look good, though there is some slight variation through areas of greyscale fill. While not quite enough to be called banding, it’s just noticeable. Black text is light and sharp, with high contrast and no sign of any spatter.
With just one consumable to consider, running costs are easy to calculate. The 1,500-page cartridge costs over £45, even at the cheapest online source we could find, giving a cost per page of 3.9p, including 0.7p for the paper. This is over a penny more per page than from the ML-2525, which is the main differentiator between the two machines.
Compared with other entry-level, mono laser printers, however, the running cost is by no means exceptional. As this is a brand new printer, it may well be that both its purchase price and the cost of its main consumable will drop in the coming months, making it still more economical to run.
If all you need is a simple printer to produce correspondence and screen prints, the Samsung ML-1665 fits the bill well without making you gasp when you see its price. It’s an excellent mono laser that shows a very respectable turn of speed, with very little processing time before a print starts. You will need to tidy the paper away between print sessions, though.