Light streaks
This unit got delivered to the customer today. And the streak got worse.
Now on a gray target that use to be very even and smooth, it has 2 light streaks.
that go accross the paper travel.
The wider streak, about 3/8" wide, is about an inch from the trail edge.
The other streak is not as pronouced and is just about as wide, is located
right in the center, 4.25 inches. Fold the paper and there it is.
The really weird part is that on 11X17" paper the wide streak is still
an inch away from the trail edge. And the other streak is still 4.25 inches from
the lead edge.
In between is a series of ripples or chatter. Not a smooth solid. This happens
when scanning from glass or use target #1 at 255 density.
My customer scanned in a sample and sent me a PDF. How can I attach or
post it here? My free version won't let me cut & paste.
I did not change the primary grid on this PM. The people that be, did not
feel it was needed. I did clean it very well with goo gone, then alcohol.
I also pulled the laser out and cleaned both side of the laser glass. This
did not effect the problem one way or the other. I checked the rubber thingys
on the charger wires, all ok with the wire in the center.
I removed the developer station and turn it by hand. Felt ok.
the drum looked ok. I cleaned and lubed that cone type contact on the shaft
in back of the drum carriage. I did not change the toner recovery roller
behind the drum, for the same reason.
This is the drum that I changed the drive hub on, so the drive coupling would
fit.
DR
This unit got delivered to the customer today. And the streak got worse.
Now on a gray target that use to be very even and smooth, it has 2 light streaks.
that go accross the paper travel.
The wider streak, about 3/8" wide, is about an inch from the trail edge.
The other streak is not as pronouced and is just about as wide, is located
right in the center, 4.25 inches. Fold the paper and there it is.
The really weird part is that on 11X17" paper the wide streak is still
an inch away from the trail edge. And the other streak is still 4.25 inches from
the lead edge.
In between is a series of ripples or chatter. Not a smooth solid. This happens
when scanning from glass or use target #1 at 255 density.
My customer scanned in a sample and sent me a PDF. How can I attach or
post it here? My free version won't let me cut & paste.
I did not change the primary grid on this PM. The people that be, did not
feel it was needed. I did clean it very well with goo gone, then alcohol.
I also pulled the laser out and cleaned both side of the laser glass. This
did not effect the problem one way or the other. I checked the rubber thingys
on the charger wires, all ok with the wire in the center.
I removed the developer station and turn it by hand. Felt ok.
the drum looked ok. I cleaned and lubed that cone type contact on the shaft
in back of the drum carriage. I did not change the toner recovery roller
behind the drum, for the same reason.
This is the drum that I changed the drive hub on, so the drive coupling would
fit.
DR
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