Printing apparatus and module

A module provided in a controller of a printing apparatus comprising a printing mechanism configured to perform printing on a sheet, a memory, and the controller,

• the printing mechanism further comprising:
• a supply roller that supplies the sheet placed on a tray;
• a conveying roller that conveys the supplied sheet;
• a recording device configured to perform printing on the conveyed sheet;
• a drive device configured to drive the supply roller and the conveying roller;
• and
• a drive circuit configured to drive the recording device,
• the controller being configured to execute:
• a receiving processing in which the controller receives compressed image data that is data created by compressing image data for a plurality of pages;
• a storing processing in which the controller stores the compressed image data into the memory;
• a determination processing in which the controller reads the compressed image data to determine the number of pages contained in the compressed image data without decompressing the compressed image data;
• a page-job registering processing in which the controller registers a plurality of page jobs respectively for the plurality of pages;
• an output processing in which the controller creates print data based on image data corresponding respectively to the registered page jobs and outputs the created print data to the drive circuit;
• a judgement processing in which the controller determines whether there is a next page job based on the registered page jobs each time when the output processing is executed, the next page job being a page job to be executed next to a current page job for which printing is being performed by the printing mechanism;
• and
• an advance-supply processing in which when the controller determines that there is the next page job, the controller drives the drive device to start rotating the supply roller before completion of printing on the sheet for the current page job by the printing mechanism.