Patent ID: 9586431
Date: 2017-03-07
CPC Classifications: B26D,B41J,B42C,G03G

Claim:
1. An image forming system comprising: an image forming apparatus configured to form an image on a sheet; a finisher provided with a slit unit for trimming edges of sheets which are successively supplied from the image forming apparatus, and configured to assemble an output product by joining the trimmed sheets; and a control unit configured to control each of the image forming apparatus and the finisher, wherein the finisher can assemble the output product with sheets of a plurality of paper types including a standard paper type and a non-standard paper type which is different from the standard paper type, the control unit comprising: a paper type notification unit configured to notify which of the standard paper type and non-standard paper type is supplied to the finisher from the image forming apparatus; a finisher control unit configured to control an operation of the slit unit in accordance with the paper type of sheets supplied to the finisher; and an offset amount designation unit configured to designate an offset amount corresponding to a displacement of a sheet width of the non-standard paper type in relation to a sheet width of the standard paper type, wherein when the paper type notification unit notifies that the non-standard paper type is supplied, the finisher control unit trims the edge of a sheet on the basis of the offset amount designated by the offset amount designation unit.