Hello t1der,
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I'm sorry to hear about the noise coming from your Officejet 6100. Usually the rollers will accumulate debris causing the noise. Normally a cleaning will help.
Please follow "Solution two: Clean the rollers" from this guide: More Than One Page at a Time Feeds through the Input Tray
If the troubleshooting does not help resolve your issue, I would then suggest calling HP's Technical Support to see about further options for you. If you are calling within North America, the number is 1-800-474-6836 and for all other regions: click here.
All the best,