Patent ID: 8107873

Claim:
An image forming apparatus, comprising: registration rollers arranged immediately before an electrostatic latent bearing member, the registration rollers temporarily stopping a carried paper; a detector detecting a leading edge of the carried paper temporarily stopped by the registration rollers; and a controller configured to set a timer for a variable recommencement timing delay during which the registration rollers stop the carried paper, the registration rollers recommencing carrying of the paper after the timer counts down the variable recommencement timing delay, wherein the controller is further configured to calculate the variable recommencement timing delay to align a leading edge of image information visualized on the electrostatic latent bearing member and the leading edge of the carried paper detected by the detector, and at a time of successive printing of multiple sheets, the controller is further configured to calculate the variable recommencement timing delay for an immediately subsequent paper using information of the variable recommencement timing delay of an immediately preceding carried paper, wherein the controller is configured to calculate the variable recommencement timing delay of the immediately subsequent paper based on an average value of all variable recommencement timing delays of all preceding papers, the controller is further configured to divide a number of sheets for successive printing for which there is a print request into a preset multiple number of sheets, and the controller is further configured to calculate the average value by performing initialization for each division.