RE: WMF drawings from Docutech 135PS have thin and missing lines

["Jochim, Rainer 3139 S-PP-RD-QA2" <Rainer.Jochim@xxxxxxxxxxxxxxxxx>]

Hello Verner,

This sounds to me like a hairline problem. The vector graphics probably
contain lines with no width specified (hairlines). On a laser printer those
lines appear with the printer's minimum resolution of one (rather large)
pixel and are well visible. The drafts person checked the laser print and
found the graphics to look fine.

When exposing the same graphics to a film or plate recorder or to another
device which has a much higher resolution than a standard laser printer
those lines will again appear as one pixel wide lines. This time, however,
the pixel size is much smaller and the lines become nearly invisible.

One solution would be to adjust the original graphics and always assign a
certain line width, e.g. 0.3 pt.

A preflight tools could check for hairlines in pdf files and warn you or
even automatically adjust the width but your printshop should be able to
tell you more about this.
Without knowing the system I'd though assume that one could set it up to
automatically adjust hairlines to a more reasonable width. They might check
with their machine drivers.

HTH
Rainer

-----Original Message-----
From: Andersen, Verner [mailto:verner.andersen@barconet.com]
Subject: OT: WMF drawings from Docutech 135PS have thin and missing
lines

[...]
We create the pdf file from FrameMaker 6.0 with Acrobat Distiller 4.05 and
the Acrobat Distiller printer driver. We use postscript printer driver 5.1
and adist4ppd v1.0. We use Windows 2000. 

The printshop says that they havn't changed anything in their docutech
setup. We changed to Windows 2000 and updated printer drivers some months
ago, but don't remember any drawings with missing lines then.
When we print on our Laserjet 8000 DN there is no problem. When we print on
our XeroxC1 printer and copier we can see that the lines are thin but not
missing.

It seems that hundreds of drawings have thin or missing lines. 

Do you have any suggestions on what to do?

[...]

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