Thanks for your reply. My client is using recommended stock. In my case it also appears when printing on plain paper just not as visible as when printing on heavy stock but the paper they are using is within spec. The "band" is always in the same spot and never moves.
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The problem was improved to the point where the prints were approved by the customer but it was only evident on 350gsm.
If you are getting a similar problem on any stock then that's a whole different ball game.
Check the fuser entry and exit guides for toner build up or foreign objects which could cause the sheet to stall.Comment
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Do not use 350gsm on this machine end of story...Comment
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350gsm NO GOOD
The 6500 only supports 300gsm max as everyone else has told you.
But if you have a banding issue on 300 gsm, go into paper setting folllowed by process adjust, then go to the final page (3) and set transfer pressure to Normal.Comment
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Check the Fuser Drive Gears There are 4 one way gears on the front of the fuser unit that will cause this problem (I cary them in stock because of various problems they cause) also on the exit side of the fuser there is a slide normal position is in the center try moving it to the right (front of machine) this releases the pressure of the 2 gray iddle rollers on the fuser exit section.
If you have several C6500's on site try swapping fusers (they are the same for 6500,01,5500,65hc)Comment
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If I were you, I would simply change the Fusing Unit with another one, from another machine that works fine on 350 gsm and see if the problem is resolved. If it is, then it's clearly a problem with the Fusing Unit - you will have to closely inspect it and find any broken rollers...I don't help end-users. Hate me, give me bad reputation, I don't give a rat's a**. Pay a tehnician to solve your problem! We have to live too! What do you do when something hurts? Do you go to a doctor, or do you search it on google/ forums?Comment
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