Print job transmission device, printing system, and print job transmission method

A printing system comprising:

• an image forming apparatus which executes a print job;
• a print job transmission device which transmits the print job to the image forming apparatus;
• and
• a server which manages information of the image forming apparatus,
• wherein
• the print job transmission device includes
• a device communication portion which communicates with the image forming apparatus to transmit the print job to the image forming apparatus and obtain the information of the image forming apparatus from the image forming apparatus;
• and
• a server communication portion which transmits the information having been obtained by the device communication portion to the server,
• the device communication portion obtains, from the image forming apparatus, specific information of the image forming apparatus from the image forming apparatus with timing that is independent of timing of transmitting the print job to the image forming apparatus, and obtains, from the image forming apparatus, the information of the image forming apparatus excluding the specific information with timing that is dependent on the timing of transmitting the print job to the image forming apparatus,
• the server communication portion caches the information of the image forming apparatus obtained by the device communication portion excluding the specific information,
• when a cache of the information of the image forming apparatus excluding the specific information exists, the server communication portion transmits, to the server, the information of the image forming apparatus excluding the specific information, and then deletes the cache of the information of the image forming apparatus excluding the specific information,
• the device communication portion continuously queries the image forming apparatus for the specific information by polling, and
• the server communication portion transmits, to the server, the specific information when a predetermined time has elapsed since obtainment of the specific information by the device communication portion.

A print job transmission method executed by a computer, the computer including:

• a device communication portion which communicates with an image forming apparatus, which executes a print job, to transmit the print job to the image forming apparatus and obtain information of the image forming apparatus from the image forming apparatus;
• and
• a server communication portion which transmits the information having been obtained by the device communication portion to a server which manages the information of the image forming apparatus,
• the method comprising:
• obtaining, with the device communication portion, specific information of the image forming apparatus from the image forming apparatus with timing that is independent of timing of transmitting the print job to the image forming apparatus, and obtaining, from the image forming apparatus, the information of the image forming apparatus excluding the specific information with timing that is dependent on the timing of transmitting the print job to the image forming apparatus,
• caching, with the server communication portion, the information of the image forming apparatus obtained by the device communication portion excluding the specific information,
• when a cache of the information of the image forming apparatus excluding the specific information exists, transmitting, with the server communication portion, to the server, the information of the image forming apparatus excluding the specific information, and
• deleting, with the server communication portion, the cache of the information of the image forming apparatus excluding the specific information after transmitting the information of the image forming apparatus excluding the specific information to the server,
• wherein
• the device communication portion continuously queries the image forming apparatus for the specific information by polling, and
• the server communication portion transmits, to the server, the specific information when a predetermined time has elapsed since obtainment of the specific information by the device communication portion.