Riso Duplicator MZ 790U Makes Thousands of Copies Per Hour for pennies per copy

Description: One Risograph MZ 790U sitting in Oklahoma with three drums, one black, one red, one blue. 625,263 copies, 3075 masters through the machine so far. I might run 2000 more copies and two masters through the machine before it leaves. The original owner was a small Arizona church that had ran 165,000 copies. I bought it in 2012 and used it for a few years to terrorize some local politicians printing flyers and post cards. Used it a few times to print instruction sheets but no longer needing such a high power printer. We have two or three instruction manuals, one is a quick start type manual, the other is the full manual showing how to trouble shoot and do the minor adjustments, how to use the digital screen, about everything you would need to know. Riso machines are duplicator, you scan a good quality examplecopy using the built in scanner, it makes a master screen in about a minute and runs a test copy. You set the number of copies needed, lower the print density to save ink if you are okay with less quality prints, and set the speed. On good fresh paper that has been ruffled or fanned and in a location running an air conditioner to keep the humidity down, it can print thousands of pages per hour. The maximum size paper is 11" x 17" and it runs anything from standard copy paper to thicker card stock or small post cards. It has a communications cord that plugs into a standard laptop or desktop connector, USB if I remember right, and if you load the right driver you can print right off a laptop or desktop. However, to get there I paid a Riso technician to come in and load the driver as my computer skills aren't the best. Later a Windows update changed the driver or lost the darned thing and I had to pre print what I wanted to duplicate after that. An office 11 x 17 printer can make the original copy or head down to Kinkos or FedEx office. This is a two drum unit meaning you can print two colors at once but we never did that. We printed a small American flag on the political newspapers we made, first running red, then passing the paper through the machine again to print the blue, then printing a third time to do the black/grey tone. No doubt you can run two colors per pass if you have the patience to read the manual and set it up accordingly. The third drum is stored down in the base when not in use. Now risographs are duplicators so expect slight misalignment when running paper through the machine again, not iron clad perfection. It has an onscreen digital adjustment for moving the print/image all four directions and you can do this while it is cranking out copies if you are a perfectionist. Example, the blue star field in the U.S. flag might wander a 1/16" or less from the red stripes or if you use colored headings they might be off 1/16" of an inch from perfection but this is just part and parcel of a duplicator. It is for insanely cheap and insanely fast copies. We printed 11" x 17" two single sheet newspapers, run one side, flip the paper and run the other side for a four page, single sheet newspaper or make as many pages as you have the budget for. We printed political post cards from small ones to large three color post cards and in most large towns there is a commercial mailing service that can address and postage meter the postage at very cheap political rates if you want to support or beat up a local politician, politically of course. There are several large forums online that can walk you through set up and provide tips on running and refurbishing these machines and in most large cities there will be a Riso distributor or sales company that has trained technicians if you need help. Parts, ink, and master rolls are available on eBay or other websites. For the most part all you will need are cheap rubber paper pick up pads that you replace every 100,000 prints. A new pad allows the duplicator to print faster without jamming or missing a print. That does happen on occasion and it seemed to happen in summer when the humidity was higher but you are talking about opening up the door, pulling the jammed paper sheet or if it was a misprint pulling that sheet out of the output bin, closing the door and hitting the resume button. We would put a baby monitor to listen to the machine while it was running so we could do other work in the office or shop and when the roar of the printer stopped it was either out of paper, finished with the print job, or had a misprint or jam. When printing smaller sizes of paper like post cards the master will have the same amount of ink as on a full size 11" x 17" sheet so you do waste ink when running small size pages or post cards. Buy larger sheets and cut them apart after printing. But the ink comes in liter bottles and is cheap if you use the aftermarket ink which in my opinion did as well as the OEM Riso ink. Ditto on the master rolls which usually dry out after several years before being used up if you only printed during political season like we did. You can print for maybe a penny or two over the cost of the paper which you can source at paper companies and get a much better price than at the office supply stores. You are going to find MZ 790 risographs selling for thousands more than we are charging but they have been refurbished but have a lot more copies ran on the machines. This machine has a few million more copies to do before it needs refurbishing so we feel this is a great bargain if you want to do flyers for businesses, political mailers, or need to print out cheap but decent quality instruction sheets or just a few hundred work sheets. These are wonderful machines, reliable, easy to use, versatile, easy to source parts and tech support for. Shipping, when I bought the machine I flew down and inspected it and saw it run and I suggest you do the same. Then we can palletize the machine in a crate and you can arrange the freight company to pick it up using an online freight broker service. We have a truck dock; expect $300 to $400 to ship halfway across the U.S. but that is up to the seller to negotiate the shipping cost and insurance, we just get it on a pallet in a crate and help get the pallet on a truck. The weight and size on the shipping crate in the shipping section is estimated. Payment, cash upon inspection at our warehouse after you see the machine run, no exceptions. If you try to pay through eBay we will send the payment back and relist the machine. Please come see the machine and we can run plenty of prints so you know the machine is in good condition. Here is a video link to watch the machine make a master and print a few copies. The video is like 900 mb, too big to embed on Ebay. https://youtu.be/3cuVrHzs1nw

Price: 6900 USD

Location: Oklahoma City, Oklahoma

End Time: 2024-08-30T09:02:32.000Z

Shipping Cost: N/A USD