More and more documents and web pages failed on printing but remained in the queue and blocked other jobs.
We are using both Secunia and SlimDrivers and neither reported a missing update.
To fix the problem I changed both the printer and the workstations:
- The WSD was configured for discovery only.
- The existing printer registration was deleted from Devices and Printers.
- The port was deleted.
- The driver was deleted with installation image - together with other HP drivers.
Also I downloaded and installed the SLP update.
All our computers are running Windows 7 x64, and used the same installation set.
After a restart all print jobs, that failed before, runs with success.
We are now challenging the printer for the next couple of weeks with various jobs. If we can avoid a purchase of a new printer, we think we have a success.
The conslusion for the moment must be something like: Do not trust central driver updates.
I know I have said something like this before (ati-driver-on-windows-7), but it is still relevant.