Screen Holdings Co., Ltd.

Kazuo Isoguchi

Kenta Nagai

Kiyoshi Imai

Koji Matsuo

Toshio Manki

Rui Yamaguchi

Sho Tomioka

Tetsuyuki Kitayama

An editing device generates a first public key and a first private key, receives a manuscript data encrypted using the first public key from an ordering device, and decrypts the encrypted manuscript data using the first private key. The editing device generates, based on the manuscript data, print data encrypted using a second public key generated in a RIP processing device, and deletes the first private key after finishing execution of a job. Using a third public key, the editing device encrypts a log which shows an execution process of the job, the log including information that a finish processing has been executed. The editing device may store the first private key before starting execution of the job, and may control whether the job is to be executed, based on a job ID received from the ordering device.

Job execution method and job execution device

A first RIP processing unit reads cache data from a first cache unit. The first RIP processing unit transmits first RIP-processed variable part data to a printer. Since an identifier read by the first RIP processing unit is not a transmitted identifier, the first RIP processing unit transmits RIP-processed reuse part data to the printer. A second RIP processing unit reads cache data from a second cache unit. The second RIP processing unit transmits second RIP-processed variable part data to the printer. Since an identifier read by the second RIP processing unit is a transmitted identifier, the second RIP processing unit does not transmit the RIP-processed reuse part data to the printer.

Printing control apparatus, printing system, recording medium having recorded thereon printing control program, and printing control method

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Kyoto, Japan

Kazuo Isoguchi