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 <acschramm@gmail.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. > > -Aaron > > On Tue, Feb 24, 2009 at 7:42 PM, ender100 <ender100@aol.com> 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" <chiahans@pictoform.nu> > > wrote: > > > > From:"Hans & Chia" <chiahans@pictoform.nu>Subject:Epson9800 and Venetian > > BlindsDate:February 24, 2009 6:05:57 PM CSTTo:alt-photo-process-l@usask.ca > > 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 > > > > > > > > > >
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