Printing system and printing method

A printing system comprising:

• a printer comprising:
• a printing unit that prints on media an image based on print job data and, after printing the image, prints on the media a code regarding the association between the print job data and post processing job data, the image based on the print job data and the code being printed on the same media and being different from one another;
• a code reading unit that moves with the printing unit during printing of the code, the code reading unit reads the code that is printed on the media, the printing unit does not print the image or the code when the code reading unit reads the code;
• and
• a post processing unit that selects the post processing job data based on the read code and performs the post processing with respect to the media based on the selected post processing job data.