In some cases print jobs may not have a preview image available. This can be for two possible reasons:
Archiving was disabled
Archiving may be disabled / overridden in the following ways:
Printer-level override (disable archiving for a printer)
User-level override (disable archiving for a user)
Print scripting (archiving disabled per-job from within a script)
A preview could not be produced for the archived job
There are several reasons why image previews could not be produced:
The print driver is using a proprietary or GDI / unsupported print language (see the section called “GDI Printers (GDI Print Description Language)”).
The print driver may be using vendor-specific language extensions (see the section called “There may be issues viewing some print jobs”).
A component to convert the PDL / spool file into images may be missing (see the section called “Step 1: Install print spool file viewer technology”).
The archived PDL / spool file may be corrupt or partially copied.
The conversion software (e.g. Ghostscript) may not be capable of producing a preview (e.g. for a complicated document).
In this case, the PDL / spool file for the job may still be downloaded for reprinting (see the section called “Downloading PDL / spool files for reprinting”).