Re: mysterious printing problems

From: Peter J. Dobrovka (dobrovka_at_3dtt.de)
Date: 10/21/04 

Date: Thu, 21 Oct 2004 01:45:55 +0200

"Bruce Roberts" <ber@bounceitattcanada.xnet> schrieb im Newsbeitrag
news:BJudd.59$yn1.70570@news20.bellglobal.com...

Thanks for quick replying.
I did forget one very important thing: We are talking about printing in a
network. There is one printer and about 50 workstations.
And some of the computers do show this problem.
Recently I have implemented more images in the document and some machines that
worked fine do now show this problem, too.

> Details are required. But before we get to them, some basic things that need
> to be checked.
> 1. Are the printers capable of printing the graphics in the desired
> timeframe?

The printer is capable of everything.

> 2. Are the latest print drivers installed everywhere?

Probably. Since other applications do not have any problems I did not
investigate.

> 3. Are the printers attached to the workstations doing the printing or
> is a network involved somehow?

Network, see above.

> 4. Does the architecture allow for printing the graphics in the desired
> timeframe? IOW are there enough hardware resources of sufficient performance
> levels to satisfy the raw printing requirement?

Although this seems to affect mostly older computers with lower performance I
don't suspect the perfomance to be the problem. If you close the Application the
printing job does complete immediately, if you do not, the job NEVER completes.
The memory could be a factor, but I am unable to prove that.

> 5. Are the print drivers involved set to start printing before the job
> has finished spooling?

Some are, some are not. I will have to check this in detail.

> 6. Are the print drivers configured optimally to print the type of
> graphic being sent?

How do I check that?

> Now the details.
> a. What type of graphics are we talking about, monochrome low res, full
> colour high res, bmp, jpg, wmf, giff, tiff?

The images are colored originally but the printer is monochrome. If the printer
is replaced by a color printer then it prints the images with colors.

The file format is non existing, I am printig from the memory using TBitmap.
Some images are screenshots.

> b. How is the output being delivered to the print queue, report writer
> or directly?

Report writer??
(Remark: my first language is German and my WinXP is German, too. I can not
identify the "report writer" option. What does it do?)

> c. Depends on the answer to b.

Then we should clarify b.

Peter

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