Photocopier negative "ghost" image

[[email protected]]

Hello All;

I have a Minolta CSPRO 1080 that creates ghost images on the copies.
It's actually a negative or reverse image...looks like someone used
black spraypaint to lightly paint over a stencil. After installing a
new drum and cleaning blade, the first copy looked perfect...yea, high-
fives all around. But subsequent copies developed the negative
ghost image. Second copy had one ghost image on the left and right
side of the copy. Third copy had 2 ghost images and so on til about
the 6th copy. After that, the ghost images gets darker and darker but
does not increase in number. Meaning, the center of the page is clean
with no ghost images.

So after buying a new drum and blade, I still have the same original
problem. Any help is appreciated before I invest more money into the
copier.

Thanks,
HD

 

[William Sommerwerck]

Have you complained to Minolta?

 

[PeterD]

Hello All;

I have a Minolta CSPRO 1080 that creates ghost images on the copies.
It's actually a negative or reverse image...looks like someone used
black spraypaint to lightly paint over a stencil. After installing a
new drum and cleaning blade, the first copy looked perfect...yea, high-
fives all around. But subsequent copies developed the negative
ghost image. Second copy had one ghost image on the left and right
side of the copy. Third copy had 2 ghost images and so on til about
the 6th copy. After that, the ghost images gets darker and darker but
does not increase in number. Meaning, the center of the page is clean
with no ghost images.

So after buying a new drum and blade, I still have the same original
problem. Any help is appreciated before I invest more money into the
copier.

Thanks,
HD

Check your erase crona wire (I think this model will have one...) This
wire discharges the drum so the scraper will actually pick up the
toner.

 

[James Sweet]

Hello All;

I have a Minolta CSPRO 1080 that creates ghost images on the copies.
It's actually a negative or reverse image...looks like someone used
black spraypaint to lightly paint over a stencil. After installing a
new drum and cleaning blade, the first copy looked perfect...yea, high-
fives all around. But subsequent copies developed the negative
ghost image. Second copy had one ghost image on the left and right
side of the copy. Third copy had 2 ghost images and so on til about
the 6th copy. After that, the ghost images gets darker and darker but
does not increase in number. Meaning, the center of the page is clean
with no ghost images.

So after buying a new drum and blade, I still have the same original
problem. Any help is appreciated before I invest more money into the
copier.

Thanks,
HD

What does this copier use to erase the drum? Older units had a string of
incandescent lamps, it's been a long time since I've worked on one though.

 

[Jim Thompson]

Have you complained to Minolta?

Hey Bill, why complaining to Minolta? You guys should complain to your
Coast-to-Coast Radio station, because you guys like to convince each other
of ghost and weird things. Some idiots said he has power when he approached
the street light it turned blinking, he didn't know that the light was about
to go out. Oh America, wake up, you've been sleeping so long.


...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et
|
| Analog/Mixed-Signal ASICK's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

America: Land of the Freedom Abusers, Because of the Bastards.

 

[[email protected]]

The manual talks about a strong light to erase the drum so I assume
it's some light source (incadescent or flourescent) but not sure since
I haven't seen it. It appears that the drum is getting really dirty
and the negative image is caused when it "prints" a new image which
"cleans" off that part of the drum. So it's pulling off the old toner
that's stuck to the drum exposing a clean surface underneath. If I
run multiple blank copies, the negative "ghost" images eventually
disappears...gets darkened and blends in with the rest of the "dirty"
copy.

I'm normally just a user of photocopiers and learning how to fix them
out of necessity...small town with no local Minolta dealer. I'm not
fully understanding PeterD's comment about the erase corona. I
thought the erase stage actually applies the positive charge to the
drum. I don't think there is a corona wire before the scraper in this
model. Will need to look into it. Thanks for the suggestions/
feedback. I'm looking at cleaning out the old toner and getting fresh
new one. I'll let you know how this turns out.

HD

 

[N Cook]

The manual talks about a strong light to erase the drum so I assume
it's some light source (incadescent or flourescent) but not sure since
I haven't seen it. It appears that the drum is getting really dirty
and the negative image is caused when it "prints" a new image which
"cleans" off that part of the drum. So it's pulling off the old toner
that's stuck to the drum exposing a clean surface underneath. If I
run multiple blank copies, the negative "ghost" images eventually
disappears...gets darkened and blends in with the rest of the "dirty"
copy.

I'm normally just a user of photocopiers and learning how to fix them
out of necessity...small town with no local Minolta dealer. I'm not
fully understanding PeterD's comment about the erase corona. I
thought the erase stage actually applies the positive charge to the
drum. I don't think there is a corona wire before the scraper in this
model. Will need to look into it. Thanks for the suggestions/
feedback. I'm looking at cleaning out the old toner and getting fresh
new one. I'll let you know how this turns out.

HD

My background info on copier workings
http://www.divdev.fsnet.co.uk/copiers.htm
The charge neutralising light does not have to be very bright, usually a
string of LEDs or string of festoon bulbs. Nothing like as bright as the
main exposure lamp. Look for a thin glass cover strip between the lamp
carrier and the OPC.
It is normaly removable for cleaning.
You problem could also be due to absence of scavaging voltage , wiper blades
are out of fashion these days I think.

 

[PeterD]

On Thu, 28 Feb 2008 13:44:31 -0800 (PST),

The manual talks about a strong light to erase the drum so I assume
it's some light source (incadescent or flourescent) but not sure since
I haven't seen it. It appears that the drum is getting really dirty
and the negative image is caused when it "prints" a new image which
"cleans" off that part of the drum. So it's pulling off the old toner
that's stuck to the drum exposing a clean surface underneath. If I
run multiple blank copies, the negative "ghost" images eventually
disappears...gets darkened and blends in with the rest of the "dirty"
copy.

I'm normally just a user of photocopiers and learning how to fix them
out of necessity...small town with no local Minolta dealer. I'm not
fully understanding PeterD's comment about the erase corona. I
thought the erase stage actually applies the positive charge to the
drum.

And how do you think the erase stage applies that positive charge to

I don't think there is a corona wire before the scraper in this
model.

That may well be true, I don't know either. It was a WAG on my part,
something that I would check for were I to see this problem.

Will need to look into it. Thanks for the suggestions/
feedback. I'm looking at cleaning out the old toner and getting fresh
new one. I'll let you know how this turns out.

HD

Please do... Good luck!

 

[JosephKK]

Hey Bill, why complaining to Minolta? You guys should complain to your
Coast-to-Coast Radio station, because you guys like to convince each other
of ghost and weird things. Some idiots said he has power when he approached
the street light it turned blinking, he didn't know that the light was about
to go out. Oh America, wake up, you've been sleeping so long.


...Jim Thompson

Yet another blatant forgery.

 

[MooseFET]

Yet another blatant forgery.

I won't disagree with you cocksuckerKKK.

 

[JosephKK]

I won't disagree with you cocksuckerKKK.

I see that you have picked another target forger.

 

[Luc]

The cleaning lamp may also be the problem or the image could be on the
fuser roller.

 

[Luc]

The cleaning lamp will be a halogen or flurescent lamp, depending on
the manufacture


On Thu, 28 Feb 2008 13:44:31 -0800 (PST),