Black areas on copy

[eg101]

If it's from the claning blade you will see the lines on the drum when you remove the drum/developer section from the copier.
Rotate the drum ( still in the developer unit) clockwise, if there are still lines on the drum, it's the blade thats bad.

[time2fly]

Dude you would be soooo much better off and money ahead getting a new or used CANON iR3320i or something like that they're not much money used and sure would be better then that piece of crap Konica Minolta, Seriously thats what I would do. I'm not just saying this to get you to spend money you may not have but it's getting harder to get parts for those copiers, besides you can't print or scan on the EP....

[gerhardd]

Good surgestion, but some of us have to look out for our costomers that want to still live in the dinosorous age. Happily our time for that model passed a long time ago, but a little help for the guy would not hurt ....!

[Frankie4Fingers]

time2fly is right, it is a piece of crap, I bought the machine second hand years ago for cheap and haven't spent a cent on it, but I've just kept it going myself. It's really not worth fixing and I wouldn't even spend the money on a new drum, a new machine would be a much better way to spend my money.

I just like tinkering and although I'd never seen inside a photocopier before owning this one I've had to learn how to keep it going myself, I've overhauled the clutches several times, fixed up the heater unit, whatever its called, etc.

Anyhow, I know that after a copy, when I open the machine and look at the drum, it has a faint layer of toner over it, where the dark spots on the copies happen. Is that normal, or should it be spotlessly clean after a copy?

[eg101]

If you are looking at the drum when it is still inside the copier it will have some toner on it because it has not reached the cleaning area yet.
Looking at the drum from the front of the machine, the drum is charged at 12 o'clock, toner applied at 3 o'clock, print transfered to paper at 6 o'clock, and drum cleaned at 9 o'clock.
If you remove the drum/developer section from the copier you will be looking down at the 12 o'clock area which should be clean.

[Frankie4Fingers]

Thanks for that eg101, that's very handy to know. I take it that means that looking from the front, the drum rotates clockwise?

[abilashvk]

dear friends,
Some excellent tech.s already participated in this thread.Let me assume this as a MINOLTA CSPRO EP1080.If not then sorry but, this is commen to all analog copiers. change the (spacer/roll)coller on mag,.roller -adjust transfer/sep guide plate- adjust transfer/sep,. voltage if it's not a MINOLTA(some VR will be there -SORRY don,t know exact location).Before replacing collar U can tape both un-exposed side of PC Drum with 2 layers of normal cello-tape and confirm (if its a MINOLTA 1080)

[minimerlin]

dear friends,
Some excellent tech.s already participated in this thread.Let me assume this as a MINOLTA CSPRO EP1080.If not then sorry but, this is commen to all analog copiers. change the (spacer/roll)coller on mag,.roller -adjust transfer/sep guide plate- adjust transfer/sep,. voltage if it's not a MINOLTA(some VR will be there -SORRY don,t know exact location).Before replacing collar U can tape both un-exposed side of PC Drum with 2 layers of normal cello-tape and confirm (if its a MINOLTA 1080)

None of these are needed! It is the Cleaning Blade!! I have seen this on many machines...when they were common machines.

[Frankie4Fingers]

You're 100% correct minimerlin, that was the first thing I checked since I figured it was the easiest of all the suggestions to start with, and that was the problem.

As per eg101's advice I looked at the top of the drum and sure enough I could see toner all over it. So I took the cleaning blade out, cleaned it up thoroughly with alcohol and it copied perfectly. Unfortunately about 10 copies later about 3 black stripes appeared so it seems I need to get a new blade.

Thanks to everyone for the great help!

The ol' 1080 actually has another issue but I'll make a new thread for that one soon! Ha ha!

Cheers.