Got our C650 running & then registration went off on 100lb cover stocks. The local Konica techs did a $160 service call & reformatted the hard drive. She also told us that Konica's manual says they do not guarantee registration on the settings, "thick 2,3 or 4" & the C650 isn't designed for any papers over 210 gsm?? The konica website says it'll duplex 140lb index from the paper trays. Anyway, we sent a cmyk business card file w/ small black solids built in black only to the rip & registration was off when it printed. Tech said to choose only thick 1, but then quality is bad. We've updated both the firmware & drivers. Any advice is appreciated. Thanks.
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