PCQ KM-2550 specs on drum

[Guest]

I have a problem that is ongoing with a few KM-2550's In field, and was wandering if anybody else has come accross this. The drums seem be picking up minute spects. I've tried polishing the drums but this does'nt seem to get rid of them. The most recent one only had 56K copies on it. Could it possibly be a dusty enviorerment. I guess anything is possible. If anybody has seen this and has a better reason for this happening could you enlighten me.
CopyDoc Ric

[leroyal]

I've been told this is a "binder" in the toner.

Be sure to use KM toner only.

[banginbishop]

Ric,

can you upload a copy sample?

[Copydoc Ric]

I don't have access to a scanner write now. The specs are minute and you can't really see them on the Drum. You know they are on because they repeat on subsequent copies. I used to work on canon copiers, Np-4050 & NP-3050, and could remove some spots on drums with car polish. I may try that, the drum has to be replaced anyway.

[kyoceradude]

When you say spec, is it a nick like spec? Like a main charger arc? How does the main charger look? Drum should be under warranty.

[Copydoc Ric]

No it doesn't seem like the specs are nicks in the drum, but they could be just to small to see. As for polishing the drum, that didn't help. I giess I'll have to talk KM service rep.

[blackcat4866]

These amorphous silicon drums are very durable. As long as you're using a soft cloth you can use a wide variety of solvents (as long as you rinse afterwards with alcohol). Kerosene has worked well on the Canon drums for me. Just don't smoke while you're doing it!

Anyone remember Dispersant? That stuff was great for cleaning drums without damaging the coating. It's too bad Savin stopped making it a decade ago.

=^..^=

Like Kyoceradude, I wondered about minute nicks from primary charge arcing. Canons were well known for this. Second only to customer scratching the drum, primary charge arcing was next.

=^..^=

[JSC]

These amorphous silicon drums are very durable. As long as you're using a soft cloth you can use a wide variety of solvents (as long as you rinse afterwards with alcohol). Kerosene has worked well on the Canon drums for me. Just don't smoke while you're doing it!

Anyone remember Dispersant? That stuff was great for cleaning drums without damaging the coating. It's too bad Savin stopped making it a decade ago.

=^..^=

Like Kyoceradude, I wondered about minute nicks from primary charge arcing. Canons were well known for this. Second only to customer scratching the drum, primary charge arcing was next.

=^..^=

DISPERSANT!!! man you must be as old as me.......

[Copydoc Ric]

I talked with the factory rep. He assured me that the spects were indeed caused by arcing. He was good enough to send me a tech pub about this and what kyocera has done to fix the problem.

[nmfaxman]

Any body have the tech pub about this problem. Drums are expensive too replace every few months.
Is there a way to reduce the charge voltage?