On Mon, 27 Jun 2016 08:59:14 -0400, Mark F
wrote:
I can't find the start of this thread, but, the gist is that
an HP LaserJet 3200m scans show multiple streaks in what seems to be
the direction perpendicular to the movement of the page past the
line.
In other words, it appears that entire scan lines are dropped,
possibly related to mechanical motion.
If I remember correctly, the original poster has confirmed that
the streaks don't appear in a printout made from a file or old scan
without the problem. (The test was done to check for the unlikely
possibility that a problem on the print side was affecting the scan
side.)
My two suggestions a
1. Determine if the streaks appear when a white page is scanned
2. Determine if a line is being added. (I don't have a good test
for this. It would involve determining if something that was
supposed to be 10 scan lines apart was 11 scan lines apart, or
so such thing. Maybe scanning graph paper with a spacing of 0.1
inches or less would be measurable. Perhaps scanning something
with diagonal lines would show a glitch in the diagonal
line rather than just a horizontal line across the diagonal
line.
Diagonal line is an excellent idea. Easier to see that two lines
aren't in line than to measure.
I had a copier, printerer, scanner that I got out of the trash and I
found a broken plastic gear in it. I screwed up and glued it so that
it had one empty space about the width of a tooth. Maybe it was
smaller but it wouldn't have turned if it weren't close. But it
worked and the problem didn't seem to show in the scans I made. I
dind't have ink so I didn't print.
3. Try using VueScan from www.hamrick.com instead of the software
being used currently. I'm not sure VueScan supports the
device since the VueScan description says it supports
HP LaserJet 3200 and doesn't specify 3200m, but I think it
is worth a try.
Hey this is great. If htey ghave a universal scanner, maybe it's only
time before some hero writes a universal printer program/driver.
Here is part of the earlier thread:
On Sun, 26 Jun 2016 08:50:44 -0400, wrote:
On Sat, 25 Jun 2016 23:09:21 -0500, Tony lizandtony at orcon dot net
dot nz wrote:
wrote:
On Sat, 25 Jun 2016 22:45:51 -0500, Tony lizandtony at orcon dot net
dot nz wrote:
Micky wrote:
On Sat, 25 Jun 2016 16:16:02 -0000 (UTC), "Emran M."
wrote:
On Sat, 25 Jun 2016 09:49:29 -0500, Ralph Phillips wrote:
Measure the distance between the streaks.
Using the downloadable service manual, or the "Print Quality" help page,
you can isolate which element is contributing to these streaks due to
how far apart they are (each of the rotating elements are a different
diameter, so their tell marks are different spacings apart.)
But the streaks are horizontal, while the rollers must (by nature)
be vertical???
I thought you put the 11" side first and notebook-sized paper moved 8
1/2 inches. So the rollers would be parallel to the 11" side.
I've read all your posts and they all seem to say that, except for
your conclusion that the rollers are vertical. I don't like either
horiz or vert, I don't know what they mean, but I do like parallel or
perpendicult to 11" side.
Does your owners manual have a troubleshooting section?
It is an A4, Letter and limited banner printer. that means that the short
edge
(8 1/2") of a sheet enters the printer so that edge is parallel to the
rollwers
in the printer.
Tony
Replace the cartridge/drum Assembly. From your clarification of terms
you have a defective or damaged image drum. I've seen likely a hundred
of them with that kind of problem (unable to see your image, but your
keyboard art tells the story)
His first post tells us that it only when scanning or copying, later posts
indicate (nearly but slightly unclearly) that it does not happen when printing
from a computer. That makes it a scanner engine problem, and rollers don't
cause scanner quality issues (only feed isues).
Tony
And scanner problems will only cause streaks in the direction of
paper flow in a sheet feed scanner - and then usually due to dirt on
the glass rod.
I believe I am the only poster who gave instructions based on
determining first if it is a printer or scanner issue.