The native mode spooler (NMS) supports Page Level Recovery (PLR) and checkpoints, which provide the ability to restart printing at any page of the document due to device problems (such as power failure, paper jams, running out of paper, ink, toner, etc.) or a suspended spooler.
The Page Level Recovery and checkpoint functions recover spooler output in different ways. Which method you use is determined by the type of device you are using. Several devices support PLR, whereas only CIPER protocol printers (i.e., the HP 256x series with HP-IB interface) support checkpoints. The following sections describe PLR and checkpoints, and how to use them.
