Summary: I have purchased two Lexmark T640s from ceigreen. Both have been in excellent condition, and priced great. Our business owns about 12-15 over these printers; our software supplier demands we use them. Great printer, good print speed. Only problems arise when refilled toners are used. Recommend using only new Lexmark supplies. (No, this is not a paid sales pitch; just experience.
Summary: This printer replaces a Dell m5200 workhorse that we had for years. We have two other T640n printers and have never had any major issues with them. Duplexers, memory and extra trays can be found for very reasonable prices on eBay and the 21,000 page toner that we get from Tonerworld.com works very well and this helps keep the price per page low (vs. the OEM toner @ $400 a pop). I recommend this printer without reservation.
Summary: The T640n series is a workhorse work group printer that is network ready. It will just work (which is most of the time) once configured. I would own this unit. My complaint and only reason for a good rating instead of excellent, is that the unit is messy with toner at times and needs the cleaning wand replaced on regular schedule.
Summary: I'm in accountant and print multiple huge daily reports. I have had this printer since 2008 and I love it! It prints fast and I change the toner once a year! I don't know why the other 2 reviewers have had problems, but I'm even considering buying this model for my personal home use.
Summary: Comments about Lexmark T640dtn: This printer although rather unique has done an amazing job for my office. Lexmark always seems to be in the shadow of HP but I would defiantly recommend this printer. It has worked very well over the last 3 months and I haven’t had one single issue with it. Usually with the old printers I would have to call maintenance every few weeks but haven’t had that problem here!
Summary: Comments about Lexmark T640n: What a cute little printer. I had bought this for my secretary to use since all of the other printers were always tied up. She loved it so much she had to buy one for her home as well. It works very well and it very fast, we have printed 5,000 pages and have been very satisfied.
Summary: I have had this printer installed at my place of business for about 1 year. I have constant paper jams from the add-on tray 2 that I purchased with the machine. This I believe is due to a design flaw which puts the pick up roller on a swing arm above a non spring loaded sloped bottom tray. The roller comes down to pick up the paper and it's not precise enough so paper jam occurs.