An update of the PPD cache file on a system updates the existing information in the PPD cache file.
You might the request and update of the PPD cache file on a system in the following instances:
If you add a PPD file to the system by using the pkgadd command.
If you copied a PPD file to a label directory, within a known PPD file repository manually.
Any changes that you make are reflected in Solaris Print Manager after the update has completed.