Patent ID: 9199488
Filing Date: 2015-12-01
Classification: B41J,G03G

Abstract:
1. An image forming apparatus that transports, when receiving a print job, a sheet and that performs image formation, the image forming apparatus comprising: a type identification value measurement portion that uses, when the print job is executed, a media sensor previously provided in a paper feed cassette to measure a type identification value for the sheet to be transported in the print job; a determination portion that determines whether or not an incidence of paper delay corresponding to the measured type identification value for the sheet exceeds a previously set threshold value; and a speed adjustment portion that lowers, when as a result of the determination, the incidence of paper delay exceeds the threshold value, a transport speed of the sheet as compared with a normal transport speed to execute the print job and that changes, when as a result of the determination, the incidence of paper delay does not exceed the threshold value, the transport speed of the sheet to the normal transport speed to execute the print job, wherein the incidence of paper delay is calculated by dividing, when the print job is executed to transport the sheet, a number of times transport of the sheet is delayed by the number of times the sheet is transported in execution of the print job, and the threshold value is set at 30% or more.