Re: Epson9800 and Venetian Blinds
On my epson 4000 I started getting something that sounds similar. It was from half clogged heads deflecting the ink. Even power cleaning wouldn't solve it. Epson said I needed a new printhead. They knew the problem. It was under warranty and I ended up with a new printer. I saw the problem on paper prints, not transparency material
---- Aaron Schramm <email@example.com> wrote:
> Just to add a quickie, didn't see you mention if you turned off
> bi-directional printing (aka highspeed)... give that a try as well.
> On Tue, Feb 24, 2009 at 7:42 PM, ender100 <firstname.lastname@example.org> wrote:
> > Hi Hans & Chia,
> > NIce to hear from you, but not so good under these circumstances.
> > Venetian Blinds actually run in the direction of the print head and are
> > much wider spaced. They are due to a fluctuation in density of the ink
> > being laid down and are usually most visible in very light areas of even
> > tone, such as skies. I first noticed them a few years back on prints done
> > by Dick Arentz with PDN.
> > The problem you are experiencing, even though you have cleaned your rollers
> > sounds like—rollers.
> > I wonder if the rollers have become scuffed? If you increase the inkload
> > my guess is they get worse.
> > Have you tried Pictorico OHP ULTRA? It dries faster and can take a greater
> > inkload.
> > Maybe try cleaning the rollers again? Replace the rollers?
> > Have you switched inks? If so, maybe these inks don't dry as fast and are
> > being picked up by the rollers
> > --
> > Best Wishes,
> > Mark Nelson
> > Precision Digital Negatives <http://www.precisiondigitalnegatives.com/>
> > <http://tech.groups.yahoo.com/group/PDNPrint/?v=1&t=search&ch=web&pub=groups&sec=group&slk=1><http://tech.groups.yahoo.com/group/PDNPrint/?v=1&t=search&ch=web&pub=groups&sec=group&slk=1>PDN
> > Print Forum @ Yahoo! Groups<http://tech.dir.groups.yahoo.com/dir/Computers___Internet>
> > Mark Nelson Photography <http://www.MarkINelsonPhoto.com/>
> > On Feb 24, 2009, at 6:05:57 PM, "Hans & Chia" <email@example.com>
> > wrote:
> > From:"Hans & Chia" <firstname.lastname@example.org>Subject:Epson9800 and Venetian
> > BlindsDate:February 24, 2009 6:05:57 PM CSTTo:email@example.com
> > Hi all,
> > For a couple of years we have printed our green PDN-negs (R0 G255 B30 +15
> > ink) with an Epson 9800 and it has worked fine.
> > But suddenly it started to print vertical (paper feed direction) darker
> > bands about 4-7mm wide, hard to say because they are very softedged.
> > You see them in the dark part of the neg. They are not quite regural, it
> > reminds of the space between the suction holes but it isn't.
> > We print on OHP or CopyJet, uni-directional and 2880 dpi.
> > The triple alignment is made
> > Rails and rolers are cleaned
> > Different settings of micro weaving are tried
> > Different settings of suction are tried
> > Different settings of platen gap/paper thickness are tried
> > Different settings of drying time
> > Nothing seems to help
> > To print "normal" prints works.
> > Any ideas are welcome.
> > Hans and Chia
> > Atelier Pictoform
> > Hans Nohlberg & Chia N-Löfqvist
> > Hedåsgatan 5
> > SE-412 53 Göteborg
> > Sweden
> > +46 (0)31 181414
> > Mobile: 073 974 44 24
> > (Besök/visit Hedåsgatan 6)
> > www.pictoform.nu
> > www.artphotocollection.com
> > www.treshombresart.com
> > www.etsabild.se