Patent ID: 8253964

Claim:
An image forming apparatus comprising: a data reception unit that receives a first print data; a printing unit that performs a first print processing of the first print data received by the data reception unit; a first paper feed tray that is configured to contain a paper on which the first print data is to be printed by the printing unit; a controller that is configured to perform a cancellation of the first print processing of the first print data so as to remove the first print data when the paper contained in the first paper feed tray does not have a desired size to print the first print data and a paper having the desired size is not supplied to the first paper feed tray within a predetermined time, the desired size being a paper size corresponding to the first print data, wherein the controller is configured to skip all jobs that require the paper having the desired size when the paper having the desired size to print the first print data is not contained in the first paper feed tray and the paper having the desired size is not supplied to the first paper feed tray within the predetermined time, and wherein the controller determines whether or not all of the first print data is displayed on a display unit, when the controller determines that all of the first print data is displayed on the display unit, the controller performs the cancellation of the first print processing, and when the controller determines that all of the first print data is not displayed on the display unit, the controller (i) controls the display unit to display the first print data sequentially and (ii) stores the displayed first print data.