Even from a plurality of small documents, their front-side and back-side images to be formed on a recording paper sheet, with alignment and coincidence of the front-side and back-side images of each document between the front and back sides of the recording paper sheet. In an image forming apparatus, an image processing section detects a front-side image of an original document from a scan area read in a first scan by an image reading section, detects a back-side image of the original document from a scan area read in a second scan, and moves or rotates the front-side image and the back-side image of the original document in terms of a whole image of the scan area so that the front-side image and the back-side image of the original document are brought into alignment and coincidence between a front side and a back side of a recording paper sheet.

Even from a plurality of small documents, their front-side and back-side images to be formed on a recording paper sheet, with alignment and coincidence of the front-side and back-side images of each document between the front and back sides of the recording paper sheet. In an image forming apparatus, an image processing section detects a front-side image of an original document from a scan area read in a first scan by an image reading section, detects a back-side image of the original document from a scan area read in a second scan, and moves or rotates the front-side image and the back-side image of the original document in terms of a whole image of the scan area so that the front-side image and the back-side image of the original document are brought into alignment and coincidence between a front side and a back side of a recording paper sheet.

An image forming system includes an image forming apparatus including a stacking portion capable of stacking a recording material having an adhesive region in which an adhesive is applied onto a surface of the recording material, an image forming unit for forming an image on the recording material, and a fixing portion for fixing the image formed on the recording material; a pressure-bonding processing apparatus including a folding processing portion for folding the recording material fed from the image forming apparatus, and a pressure-bonding portion capable of pressure-bonding the recording material folded by the folding processing portion under pressure application; an inputting portion capable of inputting directions of a front surface and a back surface of the recording material stacked on the stacking portion; and a displaying portion for displaying a pressure-bonding printed matter, on which the image is formed, depending on a result inputted by the inputting portion.

An image forming system includes an image forming apparatus, a pressure-bonding processing apparatus, an inputting portion, and a controller. The controller changes, in a case that directions of a front surface and a back surface of a recording material inputting portion and different from the directions of the front surface and the back surface in which a pressure-bonding printed matter is capable of being properly prepared, an image formation order of image forming data to an order in which the pressure-bonding printed matter is capable of being properly prepared in the directions of the front surface and the back surface of the recording material inputted by the inputting portion.

An image forming system includes an image forming apparatus including a stacking portion, an image forming unit, and a fixing portion; a pressure-bonding processing apparatus including a folding processing portion, and a pressure-bonding portion; an inputting portion capable of inputting directions of a front surface and a back surface of the recording material stacked on the stacking portion; and a displaying portion for displaying a message indicating that a pressure-bonding printed matter is not properly prepared in a case that directions of the front surface and the back surface of the recording material inputted by the inputting portion are different from directions of the front surface and the back surface of the recording material in which the pressure-bonding printed matter is capable of being properly prepared.

An image forming system includes an image forming apparatus including a stacking portion capable of stacking a recording material having an adhesive region in which an adhesive is applied onto a surface of the recording material, an image forming unit for forming an image on the recording material, and a fixing portion for fixing the image formed on the recording material; a pressure-bonding processing apparatus including a folding processing portion for folding the recording material fed from the image forming apparatus, and a pressure-bonding portion capable of pressure-bonding the recording material folded by the folding processing portion under pressure application; an inputting portion capable of inputting directions of a front surface and a back surface of the recording material stacked on the stacking portion; and a displaying portion for displaying a pressure-bonding printed matter, on which the image is formed, depending on a result inputted by the inputting portion.

An image forming apparatus includes an image forming portion configured to form a toner image on a recording material; a fixing portion configured to fix the toner image, on the recording material, formed on the recording material by the image forming portion; an input portion configured to input information on the recording material; and a controller. In a case where the controller executes an operation in a first mode in which the toner image is formed on a pressure-bonded recording material bent and pressure-bonded so that one surface of the recording material becomes an opposing inner surface, the controller controls the fixing portion on the basis of first information on a basis weight of the pressure-bonded recording material and second information on a folding shape of the pressure-bonded recording material, which are inputted by the input portion.