Post-processing apparatus and image forming apparatus

An image forming apparatus including an image forming apparatus main body that executes formation of an image, and a post-processing apparatus that executes a punching process to open a hole at a predetermined position of an image forming medium, the medium discharged from the image forming apparatus main body, the image forming apparatus comprising;

• a conveying portion that conveys the image forming medium from the image forming apparatus main body;
• a movement portion that displaces in a displacement direction that is different from the conveying direction of the image forming medium on the conveying portion;
• a position detection portion that is disposed on the movement portion, and detects a position of the image forming medium;
• a punching processing portion that is disposed on the movement portion, and that executes a punching process at a predetermined position on the image forming medium based on the position of the image forming medium detected by the position detection portion;
• and
• a control portion that controls the conveying portion to stop the conveying of the image forming medium when the position detection portion detects that the image forming medium is positioned on the abnormal conveying path that diverges from a region on the normal conveying path within the conveying path region.

An image forming apparatus including an image forming apparatus main body that executes formation of an image, and a post-processing apparatus that executes a punching process at a predetermined position of an image forming medium, the medium discharged from the image forming apparatus main body,

• wherein the image forming apparatus main body comprising;
• an image forming portion that forms a toner image based on image data;
• a transfer portion that transfers the toner image formed on the image forming portion to the image forming medium;
• a fixing portion that fixes the toner image transferred to the image forming medium onto the image forming medium;
• and
• a first conveying portion that supplies the image forming medium to the transfer portion, and conveys the image forming medium through the fixing portion to the post-processing device;
• and
• wherein the post-processing device comprising;
• a second conveying portion that conveys the image forming medium from the image forming apparatus main body;
• a movement portion that displaces in a displacement direction that is different from the conveying direction of the image forming medium in the second conveying portion;
• a position detection portion that is disposed on the movement portion, and detects a position of the image forming medium;
• and
• a punching processing portion that is disposed on the movement portion, and that executes a punching process at a predetermined position on the image forming medium based on the position of the image forming medium detected by the position detection portion;
• and
• the image forming apparatus further comprising;
• a control portion that controls the second conveying portion to stop the conveying of the image forming medium when the position detection portion detects that the image forming medium is positioned on the abnormal conveying path that diverges from a region on the normal conveying path within the conveying path region.