Network-connectable printer, controller therefore, and control method

摘要

The present invention is a printer controller furnished with a processor for exclusively executing a first task (printing task) for controlling a print engine, a second task (communication task) for controlling communication with host computers, and a third task (language task) for generating image data. These tasks are assigned priorities of execution in the order of the printing task, the communication task, and the language task. When there is a request for the execution of a task with a higher priority during the execution of a task with a lower priority, the processor executes the higher priority task whose execution has been requested instead of the lower priority task currently being executed. Therefore, the processor is able to execute the communication task, language task, and printing task with no conflict.