Image forming apparatus for forming a plurality of image from different originals on one transfer sheet

An image forming apparatus capable of effecting plural image forming operations on one transfer sheet, comprising:

• image transfer means for transferring an image on the transfer sheet;
• image magnification changing means for changing the magnification of the image to be transferred onto the transfer sheet;
• deformation detecting means for detecting the amount of deformation of the transfer sheet resulting from an image forming operation;
• and
• control means for controlling said magnification changing means on the basis of information detected by said deformation detecting means.

An image forming apparatus capable of effecting plural image forming operations on one transfer sheet, comprising:

• image transfer means for transferring an image on the transfer sheet;
• image magnification changing means for changing the magnification of the image to be transferred onto the transfer sheet;
• and
• control means for controlling said magnification changing means to change the magnification at a predetermined rate to effect the image forming operation at the changed magnification for the second and subsequent, if any, formation of the image to be transferred onto the transfer sheet.

An image forming apparatus capable of effecting plural image forming operations on one transfer sheet, comprising:

• image transfer means for transferring an image on the transfer sheet;
• fixing means for fixing the image transferred to the transfer sheet;
• image magnification changing means for changing the magnification of the image to be transferred onto the transfer sheet;
• and
• control means for controlling said magnification changing means to change the magnification at a predetermined rate for a second formation of the image to be transferred onto the transfer sheet, wherein the transfer sheet passes through the fixing means before the second image formation.