Abstract: In embodiments of print plug-in isolation, a print system input can be received at a print system, and the print system input can be redirected from the print system to an isolation module that isolates one or more print plug-ins from the print system. The print system input can be processed at the isolation module with the one or more print plug-ins to generate print plug-in output, and the print plug-in output can then be communicated back to the print system from the isolation module.

Abstract: In embodiments of print plug-in isolation, a print system input can be received at a print system, and the print system input can be redirected from the print system to an isolation module that isolates one or more print plug-ins from the print system. The print system input can be processed at the isolation module with the one or more print plug-ins to generate print plug-in output, and the print plug-in output can then be communicated back to the print system from the isolation module.

Abstract: Print plug-in isolation is described. In embodiment(s), a print system input can be received at a print system, and the print system input can be redirected from the print system to an isolation module that isolates one or more print plug-ins from the print system. The print system input can be processed at the isolation module with the one or more print plug-ins to generate print plug-in output, and the print plug-in output can then be communicated back to the print system from the isolation module.

Abstract: Notification mechanisms for use in connection with print systems are described. In one embodiment, a notification mechanism extends from a printing application to the spooler, from the spooler to a hosting process, and back to the spooler. The notification mechanism can allow interested applications, such as print user interfaces, to register to receive updates on the progress of a print job. The notification mechanism provides a very rich and robust mechanism through which notifications can be generated and received.

Abstract: A system data interface and related architectures are described. Various embodiments can provide one or more of the following capabilities: a generic data model, asynchronous client and server dispatch, cancellation, batching, transactional invocation, parallel invocation, interception or reflection. In one embodiment, the system data interface is employed in the context of a print system.

Abstract: Print plug-in isolation is described. In embodiment(s), a print system input can be received at a print system, and the print system input can be redirected from the print system to an isolation module that isolates one or more print plug-ins from the print system. The print system input can be processed at the isolation module with the one or more print plug-ins to generate print plug-in output, and the print plug-in output can then be communicated back to the print system from the isolation module.

Abstract: Printing systems and methods are described in which the priorities of print jobs are programmable. A scheduler component oversees print job management and scheduling, and works in concert with components called prioritizers, to provide for ease of programming and customization. In at least some embodiments, an interface to the system is provided to allow prioritizers to be programmed and inserted to customize the behavior of the scheduler according to different print job properties. In at least some embodiments, the system utilizes a model for the relative prioritization of print queues in the system to enforce a fair to balancing of system resources between print queues. In at least some embodiments, the system can independently schedule the rendering and printing operations when printing a job and can use a heuristic known as “starvation risk” to help ensure that throttling rendering in the system does not result in device starvation.