Patent ID: 7599635

Claim:
An image forming apparatus comprising: a transferring unit for transferring an image formed by toner onto various record mediums; a setting section for setting a transfer condition to correspond to the one of the various record mediums in order to control said transferring unit; a memorizing section for memorizing a plurality of standard transfer conditions that respectively correspond to the various record mediums and are previously decided, a transfer limit memory for memorizing respective upper limits and lower limits of the different standard conditions, the upper and lower limits representing correction information; and wherein the setting section calculates an initial condition on the basis of said correction information and said one of said different standard conditions; performs comparison operations between the initial condition and the upper limit and between the initial condition and the lower limit; if the initial condition is less than the upper limit and is more than the lower limit, sets the initial condition as the transfer condition; if the initial condition exceeds the upper limit, sets the upper limit as the transfer condition; if the initial condition is below the lower limit, sets the lower limit as the transfer condition; wherein said transferring unit performs a transfer according to said transfer condition set by said setting section.