HP CM1312 nfi MFP laser

Sikna says,
The problem was/is HP did not lubricate the drum wiper blades at all.
Excerpt from HP Statement: "In extreme cases the blade can be ripped off the cartridge and be found inside the printer."
HP Official Statement on this Problem:
http://74.125.95.132/search?q=cache:4hUOPOsNqFgJ:www.ussco.com/Email/OfficeLine/08_28_08/images/TonerCartridgeIssue.doc+grinding+OR+noise+OR+squawk+%22cm1312%22&hl=en&ct=clnk&cd=15&gl=us
Methuselah Drum Padding Power solved the problem for me and my customers.
http://www.mruserfriendly.com/orders2//p355.html
Sikna out...