"Client error not found" = DOOOOOOOOMMMMMM!!!!!!!

Question

Ok been getting this a lot recently and I think it is to do with my printer setup script. There must be a way to fix it, but for the life of me I can not find the solution.
It usually starts with all printers on the system being paused. You can unpause them, but as soon as you try print they automatically pause again.
You can reset the print system, but when you try readd a printer you get the message of doom "client-error-not-found".
From then on I can not add any printer to the system and the only fix is a wipe and reinstall.
I mentioned above that I use a printer script to install the 10+ printers in the office onto the 80+ machines. All the machines are running 10.5 and upto date.
I have put the script to have a look at, but even if it is causing the problem there should be a way to fix the issue.
#Reset print system.
do shell script "lpstat -p | cut -d' ' -f2 | xargs -I{} lpadmin -x {}" with administrator privileges
#log onto the server and mounts the IT_support folder. If the IT_support folder is already mounted it will skip the mount and move on.
if {"IT_support"} is not in paragraphs of (do shell script "/bin/ls /Volumes") then
mount volume "afp://192.168.1.251/IT_support"
end if
do shell script "cp -frv /Volumes/ITsupport/01_Mac/04Printers/PrinterAutoInstall/drivers/* /Library/printers/PPDs/Contents/Resources/" with administrator privileges
#Add the printers to the system.
#Colour Printers.
#Colour_Printroom Appletalk.
do shell script "lpadmin -p Colour_PrintRoom -L FirstFloorPrintRoom -E -v pap://*/Colour_PrintRoom/LaserWriter -P /Library/printers/PPDs/Contents/Resources/xrx7655.ppd -o printer-is-shared=false" with administrator privileges
#Colour_Kitchen Appletalk.
do shell script "lpadmin -p Colour_Kitchen -L First\\ Floor\\ Kitchen -E -v pap://*/DC3535_DC3535Print/LaserWriter -P /Library/printers/PPDs/Contents/Resources/Xerox\\ DocuColor3535\\ PS -o printer-is-shared=false" with administrator privileges
#BizHub Appletalk.
do shell script "lpadmin -p Colour_BizHub -L Colour_BizHub -E -vpap://*/X3eBizhub45035C-KMPrint/LaserWriter -P /Library/printers/PPDs/Contents/Resources/en.lproj/Fiery\\ X3eTY\\ 35C-KM\\ PS\\ v2.01\\ eu -o printer-is-shared=false" with administrator privileges
#Admin Printers.
#Reception Bonjour.
do shell script "lpadmin -p Reception -L Ground\\ Floor\\ Reception -E -v mdns://Reception%20%2892%3A1b%3A58%29.pdl-datastream.tcp.local./?bidi -P /Library/printers/PPDs/Contents/Resources/Xerox\\ Phaser\\ 4500DT.gz -o printer-is-shared=false" with administrator privileges
#A3_Northside Bonjour.
do shell script "lpadmin -p A3_Northside -L First\\ Floor\\ North\\ Side -E -v mdns://A3Northside._pdl-datastream.tcp.local./?bidi -P /Library/printers/PPDs/Contents/Resources/Xerox\\ Phaser\\ 5500DN.gz -o printer-is-shared=false" with administrator privileges
#A3_Southside Bonjour.
do shell script "lpadmin -p A3_Southside -L First\\ Floor\\ South\\ Side -E -v mdns://A3Southside._pdl-datastream.tcp.local./?bidi -P /Library/printers/PPDs/Contents/Resources/Xerox\\ Phaser\\ 5500DN.gz -o printer-is-shared=false" with administrator privileges
#Studio3_Admin Bonjour.
do shell script "lpadmin -p Studio3_Admin -L First\\ Floor\\ Studio\\ 4 -E -v mdns://Studio3Admin._pdl-datastream.tcp.local./?bidi -P /Library/printers/PPDs/Contents/Resources/Xerox\\ Phaser\\ 4510DT.gz -o printer-is-shared=false" with administrator privileges
#Studio1_Admin Bonjour.
do shell script "lpadmin -p Studio1_Admin -L First\\ Floor\\ Studio\\ 1 -E -v mdns://Studio1Admin%20%2892%3A41%3Af6%29._pdl-datastream.tcp.local./?bidi -P /Library/printers/PPDs/Contents/Resources/Xerox\\ Phaser\\ 4500DT.gz -o printer-is-shared=false" with administrator privileges
#Studio3_A3 Bonjour.
do shell script "lpadmin -p Studio3_A3 -L First\\ Floor\\ Studio\\ 4 -E -v mdns://Studio3A3._printer.tcp.local. -P /Library/printers/PPDs/Contents/Resources/HP\\ LaserJet\\ 5100\\ Series.gz -o printer-is-shared=false" with administrator privileges
#Plotters.
#PlotterDeathstarHP4500ps Bonjour.
do shell script "lpadmin -p PlotterDeathStarHP4500ps -L First\\ Floor\\ Print\\ Room -E -v mdns://PlotterDeathstar_HP4500ps._printer.tcp.local. -P /Library/printers/PPDs/Contents/Resources/HP\\ Designjet\\ 4500\\ PS3.gz -o printer-is-shared=false" with administrator privileges
#PlotterPosterEpson7600 Bonjour.
do shell script "lpadmin -p PlotterPosterEpson7600 -L First\\ Floor\\ Print\\ Room -E -v mdns://PlotterPosterEpson7600.printer.tcp.local. -P /Library/printers/PPDs/Contents/Resources/en.lproj/stp-escp2-7600.5.2.ppd.gz -o printer-is-shared=false" with administrator privileges
#Copy a fresh copy of the printer driver settings back onto the system after the printers have been installed. driver settings are stored in /etc/cups/PPD admin rights required to copy files into this folder
do shell script "cp -fRv /Volumes/ITsupport/01_Mac/04Printers/PrinterAutoInstall/ppd/* /etc/cups/PPD" with administrator privileges
#Copy printer presets on to system.
do shell script "cp -frv /Volumes/ITsupport/01_Mac/04Printers/PrinterAutoInstall/presets/* /Library/Preferences" with administrator privileges
#The following printer is added into the system speratly due to a driver selection issue when adding more than one Xerox Phaser 4510DT. The system seems to apply the correct driver to the first one that is added to the system. The second Xerox Phaser 4510DT does not get the correct driver applied to it.
#Studio2_Admin Bonjour.
do shell script "lpadmin -p Studio2_Admin -L First\\ Floor\\ Studio\\ 2 -E -v mdns://Studio2Admin._pdl-datastream.tcp.local./?bidi -P /Library/printers/PPDs/Contents/Resources/Xerox\\ Phaser\\ 4510DT.gz -o printer-is-shared=false" with administrator privileges
#Copy printer presets on to system.
do shell script "cp -frv /Volumes/ITsupport/01_Mac/04Printers/PrinterAutoInstall/presets/* /Library/Preferences"
do shell script "cp -fRv /Volumes/ITsupport/01_Mac/04_Printers/PrinterAutoInstall/ppd/Studio2Admin.ppd /etc/cups/PPD/" with administrator privileges
#Reset file permissions
do shell script "chmod 664 /Library/Printers/PPDs/Contents/Resources/*" with administrator privileges

Answer 1

Well, I succeeded in solving the problem by myself ...
The problem was a local .cupsrc file containing some apparently wrong settings. Removing this file solved the problem ...