Scanner lines.

[rodney]

Anyone have an idea what may be causing these lines
(both in preview and scan)
they position themeselves at odd positions randomly after each
preview or scan

Dodgy globe? dodgy slide motor?
http://cjoint.com/data/kbn4mGLJlU.htm

Thanks for any suggestions.

 

[CSM1]

Anyone have an idea what may be causing these lines
(both in preview and scan)
they position themeselves at odd positions randomly after each
preview or scan

Dodgy globe? dodgy slide motor?
http://cjoint.com/data/kbn4mGLJlU.htm

Thanks for any suggestions.

I looked at your picture.

If you have not tried re-installing the software, I would try that first.

However, the image looks like you have some kind of hardware failure.
It may be possible to lubricate the guide rail inside the scanner.

 

[rodney]

"CSM1"

I looked at your picture.
If you have not tried re-installing the software, I would try that first.
However, the image looks like you have some kind of hardware failure.
It may be possible to lubricate the guide rail inside the scanner.
CSM1
http://www.carlmcmillan.com

Cheers,
I had oiled the guides (lightly), no improvement.
re installed driver. nope.
I think it is the little motor that drives
the tractor belt. Just thought maybe someone here had experienced this
before.
Thanks Carl.
Rod.

 

[Colin.D]

rodney, 10/2/2008 01:00 hrs:

T> Anyone have an idea what may be causing these lines

(both in preview and scan)
they position themeselves at odd positions randomly after each
preview or scan

Dodgy globe? dodgy slide motor?
http://cjoint.com/data/kbn4mGLJlU.htm

Thanks for any suggestions.

The patterning across the faulty area is showing lines that have no
origin in the original document, so that rules out motor problems which
would simply stretch or compress the image.

It looks more like a loss of sync in the scanning process, which is
likely to be an electronic hardware problem, or it could be noise from a
defective cable connector. I would try a smidgeon of CRC contact
cleaner, or WD40 or somesuch on the usb connectors first. Otherwise, it
looks like a repair job on the scanner.

Colin D.

 

[rodney]

Interesting,
thanks Colin.

"Colin.D"

 

[rodney]

Any idea what and where the "power cube" is?

I'll keep the scanner in the garage, I may come across
another in the IT auctions I attend.


from scantips:

Horizontal lines are an event in time. Rainbow colored lines might be due to
a flickering lamp. Or the scanner has an internal high frequency power
supply for the lamp, and it might cause such a problem. A faulty or
incorrect or insufficient power cube may be the problem. Is the problem
everywhere, or random locations, or always in one place in the carriage
travel? It could be irregular movement of the carriage due to loose belts or
sticky guide rods or other mechanical interference can cause "glitches". You
might notice the lamp flickering, or watching the carriage carefully while
it moves might show some type of binding. Horizontal lines due to lamp
problems are random, showing at whatever location of the carriage at that
point in time, but a sticky carriage would probably always be seen at the
same location. Effects of an insufficient power cube is probably seen all
over the image.

In any event, lines are not caused by your scanning procedure, and calling
your scanner's Customer Support service seems a good plan.







"Colin.D"

 

[rodney]

Not a bad guess at that
I change the tractor belt (cable?) to a few notches farther up and the
lines change position, so its either a motor glitch or tractor belt.
I usually pick up scanners at the IT auctions for a song
so I'll have a play around.
I have other second hand scanners here, but none have the same
"power cube" connection.

 

[Erik]

Best guess (and only a guess): bad cable inside the scanner

I also suspect this will be the culprit. Probably the one going to the
carriage... it does a lot of flexing.

I have an old Epson 1670... just the other day I was scanning some odd
ball objects with the lid off, and noted this cables minimum bend radius
was a little tight for comfort with at the carriage at and near it's
'home' position.

Good Luck!

Erik

 

[rodney]

I see what you guys mean,
the belt cable that travels with the globe, well that makes sense,
since the scanner has done in excess of 95,000 scans.

I kept a record, and backed up after each 10,000 scans
when the trip returned to zero.