If you are looking for a fast, reliable, and heavy duty printer for your busy or expanding office, the HP Laserjet Enterprise 600 series might be the perfect solution. This printer could be a good replacement for the now decade old HP 4200 and 4250 laser printers. The printer prints up to 45 pages per minute with 1200 x 1200 dpi resolution. Although the recommended monthly page volume is 3,000 – 12,000 pages, the monthly duty cycle is up to 175,000 pages, which can come in handy if you have a group of people printing to this printer. The printer comes standard with 600 sheet paper tray, 512 MB of memory (expandable to 1 GB), and it is network ready.
Although the printer is fast, the optional envelope feeder will only print envelopes in the rate of 6 per minute. Also, be aware that the base model, HP M601, only supports standard yield toner cartridge of 10,000 pages. If you are expecting more yield out of your printer cartridge, you might want to spend the extra money to buy the HP M602 or HP M603 models as they both support the high yield toner cartridge of 24,000 pages.
The base model HP M601 will cost you about $699.00. The step up model HP M602 printer costs around $1,000 and the HP M603 around $1,200.
For complete specifications and details, visit HP website http://www8.hp.com/us/en/hp-search/search-results.html?ajaxpage=1#/page=1&/qt=hp%20m601