Printing system including printing device having reading function and data processing server performing payment-related process related to fee

A printing system comprising:

• a printing device comprising:
• a reader configured to read a reading target;
• a printer configured to form an image on a printing medium;
• a memory;
• and
• a first controller;
• and
• a data processing server comprising:
• a second controller,
• wherein the first controller is configured to perform:
• a reading process to read a reading target with the reader to generate image data corresponding to the reading target;
• a determination process to determine whether to transmit the image data to the data processing server according to one of available capacity information and capacity-related information, the available capacity information being related to an amount of available memory space currently available in the memory, the capacity-related information being related to an amount of predicted memory space required for storing the image data;
• and
• a first data transmission process to transmit, in response to the determination process determining to transmit the image data, the image data to the data processing server,
• wherein the second controller is configured to perform:
• a first data receiving process to receive the image data transmitted in the first data transmission process;
• and
• a first payment-related process based on the image data received in the first data receiving process, the first payment-related process being related to a fee payment for printing based on the image data, the first payment-related process being performed in response to the first data receiving process receiving the image data, and
• wherein the first controller is configured to further perform, after the fee payment is completed:
• an acquisition process to acquire print data corresponding to the image data;
• and
• a printing process to form an image corresponding to the print data acquired in the acquisition process on the printing medium with the printer.