Printing apparatus

摘要

A decision is made for each page as to whether to allow image printing on that page, by comparing the remaining sheet length DL with a length of an image about to be printed, IL. A length of a non-printed, rear-end cut sheet is also checked to determine whether the non-printed cut sheet needs to be further cut into smaller sheets. This arrangement can prevent a complete image to be printed in one page from being broken and only partly printed in the last portion of a paper roll, ensure that printed cut sheets and non-printed cut sheets are stably conveyed and discharged and enable the non-printed cut sheets to be almost equal in size so that they can be properly accommodated in the associated tray.

主权项

1. A printing apparatus comprising:
a conveyance unit configured to convey a continuous sheet in a predetermined conveyance direction; a printing unit configured to print an image on the continuous sheet; a specifying unit configured to specify a first length representing a length from a rear end of first page being currently printed on the continuous sheet to the tail end of the continuous sheet in the predetermined conveyance direction by using a sensor, as a remaining sheet length; a determination unit configured to determine whether a second page following the first page is printed based on the first length and a second length representing a length of the second page in the predetermined conveying direction, wherein if the first length is smaller than the second length, it is determined that the second page is not printed, and wherein if the first length is larger than the second length it is determined that the second page is printed; a cutter configured to cut the continuous sheet that has been subjected to printing of an image by the printing unit for every page; and an accommodation tray to accommodate unprinted sheets, that is different from a tray to accommodate printed sheets, wherein the cutter cuts an unprinted sheet into sheets of lengths long enough for them to be conveyed but short enough to be accommodated on the accommodation tray.