C450 Corona cleaning

[Smiley27]

Hi, I want to clean coronas on 4 drums, could any1 pass me part of SM that includes separation of drum? and also, i wonder , how to get transfer belt out?

[RRodgers]

Re: C450 Corona cleaning

Hi, I want to clean coronas on 4 drums, could any1 pass me part of SM that includes separation of drum? and also, i wonder , how to get transfer belt out?

It's not in the manual because it's not ment to come apart. I've had (very little luck) of using a q-tip to clean the corona's but I wouldn't recommend it as you'll get the little pieces of cotton left on the scortron. Maybe try a lint free cleaning pad that you can get in there, would be my suggestion.
Good luck

[Smiley27]

Re: C450 Corona cleaning

Ye, I get it, but what could cause color mixing on copies, for example, if i print 10 papers with blue sign on it, on some papers it will be blue, on some green/blue, on some green etc...

[Smiley27]

Re: C450 Corona cleaning

EDIT !


How do I take transfer belt out for cleaning?

[SmellsHot]

Re: C450 Corona cleaning

Open right side door....two screws. one on each side........

[mrwho]

Re: C450 Corona cleaning

Open right side door....two screws. one on each side........

After that, open the left side door, take out the waste toner bottle and pull the transfer belt out.

[EarthKmTech]

Re: C450 Corona cleaning

Ive been tempted to insert compressed air into the slot under the coronas where the ozone is drawn out - may make a hell of a mess but i bet it would clean them good enough.

i have dismantled and cleaned c250 imaging unit coronas when they were white banding at the edges (no developer loss) and couldn't be bothered going to get replacements. It does work but its alot of effort.

[Smiley27]

Re: C450 Corona cleaning

''Ive been tempted to insert compressed air into the slot under the coronas where the ozone is drawn out - may make a hell of a mess but i bet it would clean them good enough.''

You mean secondary corona inside machine? ( not the one's on IU) , where exactly are they located,and how to reach them? ''under the coronas where the ozone is drawn out'', i dont understand this well, picture perhaps?

Ive been tempted to insert compressed air into the slot under the coronas where the ozone is drawn out - may make a hell of a mess but i bet it would clean them good enough.

i have dismantled and cleaned c250 imaging unit coronas when they were white banding at the edges (no developer loss) and couldn't be bothered going to get replacements. It does work but its alot of effort.

[Smiley27]

Re: C450 Corona cleaning

I did it , but it doesnt want to go out, also some white plastic fell down, and I cant get it back.. :O ..

There are 2 screws, one holding from front side, and one securing from inside side's..

After that, open the left side door, take out the waste toner bottle and pull the transfer belt out.

[mrwho]

Re: C450 Corona cleaning

I did it , but it doesnt want to go out, also some white plastic fell down, and I cant get it back.. :O ..

There are 2 screws, one holding from front side, and one securing from inside side's..

Yes, as SmellsHot said, you need to remove those screws. That's why I wrote "After that" following SmellsHot post.

[Smiley27]

Re: C450 Corona cleaning

May sound stupid, but on which side to pull? ... 4* screws are included

Yes, as SmellsHot said, you need to remove those screws. That's why I wrote "After that" following SmellsHot post.

[Shadow]

Re: C450 Corona cleaning

pull from the left side of the machine.
There should only be 2 screws removed for the transfer belt.

if your having colour mixing issues, then start looking at drum / transfer belt cleaning units.
have you run the half tone colour tests to determine which unit is giving you the problem?

[mrwho]

Re: C450 Corona cleaning

Just the two on the right side holding the belt in place, like so:

screws.jpg

I should add that if you don't have a service manual (and I believe you don't or you wouldn't ask how to remove the belt) you should seriously consider getting one or getting professional help, as you mentioned earlier some broken plastic part and that could lead you to a more expensive repair than you had in the first place.

[Smiley27]

Re: C450 Corona cleaning

No, I havent, how do I run it?

pull from the left side of the machine.
There should only be 2 screws removed for the transfer belt.

if your having colour mixing issues, then start looking at drum / transfer belt cleaning units.
have you run the half tone colour tests to determine which unit is giving you the problem?

[mrwho]

Re: C450 Corona cleaning

No, I havent, how do I run it?

See what I mean?