Digital BW, The Print

I have been trying to print 4 a5 images on an A3 sheet as a test strip
to compare different QTR settings. 

I made 4 different tiff files with the image in each quadrant of the
page then between each print I reload the paper and alter the QTR
settings in QTR gui. 

The problem is that although the file with the image in the top left
quadrant prints ok, where the image is on the top left, the printer
only outputs the top 1/3 of the A5 part of the image. 

This is quite a repeatable problem. I wonder if its a bug in QTRip in
how it decides when printing is finished. 

Has anyone come across this problem, maybe when printing images with
large areas of white border on the left? 

I'm using QTRGui, but looking at the debug output, it looks like the
right parameters are being sent to QTRip.

QTRgui determines the printing is finished when QuadToneRIP goes to end of
task.

-Stephen
 www.sbillard.org/Stephen

> -----Original Message-----
> From: architekphoto [mailto:paul@...] 
> Sent: Tuesday, December 07, 2004 12:16 AM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: [Digital BW] QTRip misses parts of image
> 
> 
> 
>
> 
> This is quite a repeatable problem. I wonder if its a bug in 
> QTRip in how it decides when printing is finished. 
> 
>

Are you using the latest 2.1b version?  If not the entire layout feature
is greatly improved so you should use that. 

One thing to consider is that there are margins that have to be taken
into account -- so 4 full size A5's won't fit onto an A3 sheet.  
Sending the log files for the scenario that failed would help in
diagnosing the problem.

Roy
quadtone at harrington dot com


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "architekphoto" <paul@a...> 
wrote:

> 
> I have been trying to print 4 a5 images on an A3 sheet as a test strip
> to compare different QTR settings. 
> 
> I made 4 different tiff files with the image in each quadrant of the
> page then between each print I reload the paper and alter the QTR
> settings in QTR gui. 
> 
> The problem is that although the file with the image in the top left
> quadrant prints ok, where the image is on the top left, the printer
> only outputs the top 1/3 of the A5 part of the image. 
> 
> This is quite a repeatable problem. I wonder if its a bug in QTRip in
> how it decides when printing is finished. 
> 
> Has anyone come across this problem, maybe when printing images with
> large areas of white border on the left? 
> 
> I'm using QTRGui, but looking at the debug output, it looks like the
> right parameters are being sent to QTRip.

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "architekphoto" <paul@a...> wrote:
> 
> I have been trying to print 4 a5 images on an A3 sheet as a test strip
> to compare different QTR settings. 
> 
> I made 4 different tiff files with the image in each quadrant of the
> page then between each print I reload the paper and alter the QTR
> settings in QTR gui. 

I often do similar things, but I do them differently. ;)

Make just one tiff file, 142mm x 204mm. As Roy points out, you need a slightly reduced A5 to allow for margins. A full A5 is 148x210mm.

Then simply set QTRgui to A3, disable "centered placement" and set the top and left parameters to 4mm (our "token" margins). Set your first curves and blend, and print.

Feed the sheet back in, set the top placement to 4mm, left placement to 150mm, set new curves, and print again.

Feed the sheet in again, and set the top placement to 212mm, left to 4mm, twiddle the curves some more, and print again.

Feed the sheet in one last time, and set the top placement to 212mm, left to 150mm, twiddle the curves some more, and print again.

That's just 'bout what I do, 'cept I work in them thar inches. But y'all do what yuin's feel cumfurtable with. ;)

And it's pretty easy to set this up in batch files, too.