What does this thing do?

[JR2ALTA]

What's your problem? Is this a riddle?

[minimerlin]

They are to collect the talc/filler from the cheap paper often used so that it does not get carried further into the machine and get attracted to the drum along with the toner, as this would cause blotchy copies as well as even more toner dumping as the more white dust that is mixed with the recycled waste toner, gives even greyer black patches which gives even more over-toning !!There is a large full width collector on the 950/920/1050 series that is on the underside of the sync/reg roller and these little pads are on top on the white pressure rollers. A further one is inside the top of the right hand side door of the same units and is normally forgotten about as it is unseen!

[RRodgers]

Minimerlin, you sir are correct.

[minimerlin]

Minimerlin, you sir are correct.

Thank you kind Sir!

[JR2ALTA]

They also cause flat spots on the white idle rollers, throw em out

[nmfaxman]

DI 750/850 Pre-registratiion roller paper dust remover. (Service one for 9 years and made it to 9 million copies.)
There is a long one under the registration roller.
Keeps paper dust from contaminating the developer because of recycling the toner from the cleaning unit.
Less paper dust keeps the developer from failing early.

They are of an electrostatic material that attracts the paper dust through static.
Ever rub silk against a glass rod in High school, or rub a balloon on your hair to make it stick?

Originally was installed on the Konica 6190.
Very important to blow them off @ each call.

An ounce of prevention prevents a pound of cure.
If you clean them more often, they don't cause flat spots on the white plastic roller.

[Lynn56]

I'll give a bump in rep and an adda boy to the first person to tell me what the PRIMARY purpose of this litte thing is.

Paper dust remover

[Mattdlam]

Anyone else?

I think this just collects any dust particles from the paper to prevent clogging in the machine??
I have similar ones in 920s and they get a lot of dust which is usually whitish in colour meaning it is scrapped from the paper as it enters the printer.

[Synaux]

That kind sir is a tampon--when used correctly, White sheets can be used.

[Mattdlam]

They are to collect the talc/filler from the cheap paper often used so that it does not get carried further into the machine and get attracted to the drum along with the toner, as this would cause blotchy copies as well as even more toner dumping as the more white dust that is mixed with the recycled waste toner, gives even greyer black patches which gives even more over-toning !!There is a large full width collector on the 950/920/1050 series that is on the underside of the sync/reg roller and these little pads are on top on the white pressure rollers. A further one is inside the top of the right hand side door of the same units and is normally forgotten about as it is unseen!

Minimerlin - which door are you referring to I checked on my 920 as I always just clean the easily visible one how do I get to the one on top of the door?