Patent ID: 7880917

Claim:
An image forming apparatus comprising: a receiving section which sequentially receives band data that is formed by dividing image data of a page of data into a plurality of bands, said receiving section storing the plurality of received bands as a plurality of band data units in a band storing area, a printing section which performs a printing process with respect to individual ones of the plurality of stored band data units, said printing section sending an end notice when the printing process for each one of the plurality of band data units is completed; a memory managing section which manages said stored band data units, and on the basis of receiving the end notice sent from said printing section, opens a portion of the band storing area corresponding to one or more band data units whose printing process is completed in order to prepare for subsequent reception of band data; and a control section which controls reception of the band data according to said memory managing section; wherein if a paper jam occurs during the printing of one of the plurality of band data units, said control section makes said printing section stop printing the page, inquires of said memory managing section which of said band data units have been opened, and requests to re-send only the one or more previously opened band data units corresponding to the page.