A control apparatus of a plurality of control apparatuses, the control apparatus including a job holding unit which accumulates and holds a job in a predetermined storage area, each of the plurality of control apparatuses being connected, via a predetermined data transmission path, with a processing apparatus which executes the job held by the job holding unit, the control apparatus comprising: a request accepting unit which accepts a processing request from the processing apparatus; a response data generating unit which generates response data of the processing request based on results of processing executed in response to the processing request; and a request responding unit which transmits the response data to the processing apparatus and responds to the accepted processing request, characterized in that, upon the request accepting unit accepting a job listing obtaining request from the processing apparatus, the response data generating unit obtains bibliographic information corresponding to a job of a user from a bibliographic information holding unit which holds multiple bibliographic information sets in order to unilaterally manage the multiple bibliographic information sets corresponding to all jobs including the job held by the control apparatus and jobs held by other control apparatuses of the plurality of control apparatuses, and, based on the obtained bibliographic information, generates job listing response data which include job accumulating location specifying information for specifying job accumulating location, and the request responding unit transmits the generated job listing response data to the processing apparatus and responds to the job listing obtaining request, the control apparatus further comprising: a job analyzing unit which analyzes a job received when accepting a job accumulating request; and a job managing unit which manages data of the job accumulated based on the analyzed results, wherein, upon the job analyzing unit obtaining analyzed results including job data of the received job and bibliographic information on the received job, the job managing unit stores, in the bibliographic information holding unit, bibliographic management information in which the bibliographic information is collated with job identifying information which identifies the received job, and stores, in the job holding unit, job management information in which the job identifying information and the job data are collated. a request accepting unit which accepts a processing request from the processing apparatus; a response data generating unit which generates response data of the processing request based on results of processing executed in response to the processing request; and a request responding unit which transmits the response data to the processing apparatus and responds to the accepted processing request, characterized in that, upon the request accepting unit accepting a job listing obtaining request from the processing apparatus, the response data generating unit obtains bibliographic information corresponding to a job of a user from a bibliographic information holding unit which holds multiple bibliographic information sets in order to unilaterally manage the multiple bibliographic information sets corresponding to all jobs including the job held by the control apparatus and jobs held by other control apparatuses of the plurality of control apparatuses, and, based on the obtained bibliographic information, generates job listing response data which include job accumulating location specifying information for specifying job accumulating location, and the request responding unit transmits the generated job listing response data to the processing apparatus and responds to the job listing obtaining request, the control apparatus further comprising: a job analyzing unit which analyzes a job received when accepting a job accumulating request; and a job managing unit which manages data of the job accumulated based on the analyzed results, wherein, a job analyzing unit which analyzes a job received when accepting a job accumulating request; and a job managing unit which manages data of the job accumulated based on the analyzed results, wherein, upon the job analyzing unit obtaining analyzed results including job data of the received job and bibliographic information on the received job, the job managing unit stores, in the bibliographic information holding unit, bibliographic management information in which the bibliographic information is collated with job identifying information which identifies the received job, and stores, in the job holding unit, job management information in which the job identifying information and the job data are collated.