Hi there,

got some problems not directly with FOP, but with using FOP and printing
automatically via a print server servlet, that is written by us. I write
to this group because I do not really know which group or forum could
help. So this message is more a plea if someone of you knows any kind of
source (web, books, people, whatever) so that I can get some background
knowledge on this whole issue. Iam just looking for the best way to get
into it.

We use FOP to transform xml and xslts to different output formats. For
printing we use the AWTRenderer, which generally works fine. We have
added the capability to renderPCL but don´t use it in routine because
some XSLTs have to be fixed for this first. At first I must say that
this solution is stable, and we print up to several thousand pages daily
with an excellent speed and look.

But now we have some problems with as it seems one of the printers
drivers. It goes like this. The program is started and is running
smoothly for a week, but some time like that an error like the one I put
an trace (Attachement1) into the message appears, and I got no clue
where to start. After that any further print on this printer (and ALL
other printers that are fed by the print server) will result in the same
error. It seems as if this specific printer is the problem because it
always sarts with this one. The OSs Event Log (Win2kServer) throws the
messages I put in Attachement2. So for me it looks like a driver
problem(since we got with an older driver nice Blue screens of death at
times) but I do not get it that it affects also other printers.
Furthermore if I restart the Tomcat on which the Print Server is
actually running, further prints just work fine. I certainly don’t get
it. So I would appreciate and would be really thankful if someone could
give me help of any kind on this one.

Great Thanks in advance

Normen


(Attachement1:)
[ERROR]<28-jun-2004 13:40:28> :C_FOP.Print()[Location]:null
[ERROR]<28-jun-2004 13:40:28>
:C_FOP.Print()[Location,Message]:java.io.IOException: Unable to print:
java.awt.print.PrinterException: No printer found. [ERROR]<28-jun-2004
13:40:28> :C_FOP.Print()[Transformer
PROBLEM]:javax.xml.transform.TransformerException: java.io.IOException:
Unable to print: java.awt.print.PrinterException: No printer found.
[ERROR]<28-jun-2004 13:40:28> :C_FOP.Print()[Stack Trace
(1/7)]:org.apache.xalan.transformer.TransformerImpl.transformNode(Transf
ormerImpl.java:1276)
[ERROR]<28-jun-2004 13:40:28> :C_FOP.Print()[Stack Trace
(2/7)]:org.apache.xalan.transformer.TransformerImpl.transform(Transforme
rImpl.java:668)
[ERROR]<28-jun-2004 13:40:28> :C_FOP.Print()[Stack Trace
(3/7)]:org.apache.xalan.transformer.TransformerImpl.transform(Transforme
rImpl.java:1129)
[ERROR]<28-jun-2004 13:40:28> :C_FOP.Print()[Stack Trace
(4/7)]:org.apache.xalan.transformer.TransformerImpl.transform(Transforme
rImpl.java:1107)
[ERROR]<28-jun-2004 13:40:28> :C_FOP.Print()[Stack Trace
(5/7)]:com.alphasoft.ups.C_FOP.Print(C_FOP.java:322)
[ERROR]<28-jun-2004 13:40:28> :C_FOP.Print()[Stack Trace
(6/7)]:com.alphasoft.ups.events.C_FOPQueue.Compute(C_FOPQueue.java:156)
[ERROR]<28-jun-2004 13:40:28> :C_FOP.Print()[Stack Trace
(7/7)]:com.alphasoft.ups.events.C_FOPQueue.run(C_FOPQueue.java:70)


(Attachement2)
The description for Event ID ( 1 ) in Source ( CanonPrinterDriver3 )
cannot be found. 
The local computer may not have the necessary registry information or
message DLL files 
to display messages from a remote computer. The following information is
part of the event: 
DrvDocumentPropertySheets; 6A900000; 7C59BA9D; 8.

The description for Event ID ( 1 ) in Source ( CanonPrinterDriver3 )
cannot be found. 
The local computer may not have the necessary registry information or
message DLL files 
to display messages from a remote computer. The following information is
part of the event: 
DrvEnablePDEV; 71B00000; 71B2760D; ACCESS_VIOLATION.



--------------------------------------------
Normen Ruhrus
Alphasoft GmbH

Prinz-Regent-Str. 50-60
D - 44795 Bochum

fon: +49(0)234 - 333 88 18
fax: +49(0)234 - 298 31837
mail: [EMAIL PROTECTED] 




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