Let me say I don't like the price but they work. I scan a lot at work and will probably need to upgrade to a dedicated scanner. Of the three printers I have, all of the auto-feed scanner rollers were so dirty that they showed streaks when the scan went through and was converted into a PDF file. . They are wet when opened but tend to dry quickly so I used one for each scanner supply roller and then flipped them over and fed them through the printer rollers after which they dried. But although I didn't see any dirt on the sheet, the scans I later took were sharp and clear. Between uses I'll be using lint-free tampons and commercial-grade denatured alcohol, items I also bought from Revain for rollers I can reach by hand to save some money, but I'll probably make sheets once a month.
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