Question about Office Equipment & Supplies
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Posted on Jan 02, 2017
SOURCE: Running NCR on canon IR 8500
Hello Visionsp, NCR paper is special in so many ways (uhg).First of all is is typically thinner than regular 20# bond paper. Second,each sheet is chemically "married" to the other as there are ink beads on the back of one sheet that are activated by the unique beads on the face of the second sheet so to some degree they are manufactured to be mated together. So unless your paper feed system is @100% then the sheets (2 or 3 sheet NCR) are more difficult to seperate and are inclined to feed two sheets at once. THE BIGGIE is this. Consider the fact that in order to produce the carbon copy image that is being transferred from the top sheet to the pages below it requires pressure from from the pen. Your IR 8500 (and all modern copiers) has a section of the copier called the fuser.It uses extreme heat and pressure to bond the powdered carbon based toner to the paper by passing your normal copies between two heated and tightly gripped rollers, kinda like using an iron with extreme force. When the NCR paper passes through the fuser the exteme heat and "pressure" break the chemical ink beads on the NCR paper and begin to leave a layer of the very same chemical ink on the rollers as they pass thru.But instead of only trace amounts of carbon copy image (as would be reproduced by a customers signature on to the next sheet ) the entire NCR sheet is being heated and mashed and a large amount of the chemical ink is being activated rightat the point of maximum heat and pressure. Not only is this sticky as *&%$ ,but it leaves a residue on the fuser rollers (since there is no paper to transfer the beads to) and the rollers build up with ......basically ink. So at some point the copies going through the fuser will rather wrap around the rollers or cause "accordion" jams because the telon coated rollers are no longer coated with non stick teflon but are coated with tacky gunk. The only workaround for this is to run small runs of the NCR paper at a time, then run regular white paper for a while which will remove the buildup and then another quick run of NCR and so on. I have worked on Canon,Toshiba,Ricoh,Savin and Kodak copiers.The results are the same.NCR paper is not designed for regular copiers as they all use the same type fuser system. A press or a RISOGRAGH are the only reliable systems to run NCR paper. I wish I had better news.NOTE: even the workaround I have provided,which can work, does not eliminate the possibility of ruining the fuser rollers beyond repair. good Luck...............SPINAL
Posted on Feb 09, 2008
This is a problem with your paper. Using multi-part forms on an impact printer will get lighter print on each layer working from the top form to the bottom. The "carbon" paper has to impact the paper hard enough to make the marks. If your top and bottom copies look good but some in the middle are light it is a problem with the "carbon" paper and not the printer.
Now IF the top page is light and each copy under that is getting lighter then you need to close your platen gap (the lever on the right side of the machine mark A B C) go one click at a time (darkening) until the print quality looks good (or you go too far and it pinches the paper and jams *not good*)
Posted on Apr 05, 2010
All you have to do is to ensure the image is pushed down the page. Either on your graphics software or on the RP3700 itself and by using the image offset function. Try 2mm at first.
If the image is too close to the margin the paper has trouble releasing from the drum as the ink makes it stick to drum. The little hook cant then get under the paper hence jam.
I am confident this will work.
Posted on Dec 24, 2012
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