Image forming apparatus, information processing apparatus, computer readable medium and image forming system

An information processing apparatus comprising:

• a deciding unit that deciding whether in-monitoring assertion information representing that information storing unit for storing information is being monitored is recorded by an image forming apparatus connected through communicating unit or not;
• a recording unit that generates new in-monitoring assertion information and records the same information in the information storing unit if the deciding unit decides that the in-monitoring assertion information is not recorded in the information storing unit by the another image forming apparatus or if the in-monitoring assertion information recorded by the another image forming apparatus satisfies a predetermined condition of an expiration;
• an acquiring unit that acquires information to be an image forming target held by the information storing unit recording the new in-monitoring assertion information through the recording unit;
• and
• an executing unit that executes an image formation processing based on the information to be the image forming target which is acquired by the acquiring unit,
• wherein the recording unit decides that the condition of the expiration is satisfied when an expiration date represented by information indicative of the expiration date elapses if the information is included in the in-monitoring assertion information recorded by the another image forming apparatus, and the recording unit does not generate the in-monitoring assertion information and the executing unit does not execute the image formation processing in that case when the predetermined condition of the expiration is not satisfied if the deciding unit decides that the in-monitoring assertion information is recorded by the another image forming apparatus.

A computer readable medium storing a program causing a computer to execute a process for forming image, the process comprising:

• deciding whether in-monitoring assertion information representing that an information storing unit connected through a communicating unit is being monitored is recorded in the information storing unit by another image forming apparatus or not;
• generating new in-monitoring assertion information and recording the same information in the information storing unit if the deciding decides that the in-monitoring assertion information is not recorded in the information storing unit by the another image forming apparatus or if the in-monitoring assertion information recorded by the another image forming apparatus satisfies a predetermined condition of an expiration;
• acquiring information to be an image forming target held by the information storing unit recording the new in-monitoring assertion information through the recording;
• and
• executing an image formation processing based on the information to be the image forming target which is acquired by the acquiring,
• wherein the in-monitoring assertion information is not generated and the executing does not execute the image formation processing in that case if the predetermined condition of the expiration is not satisfied when the deciding decides that the in-monitoring assertion information is recorded by the another image forming apparatus.

An image forming system includes an information processing apparatus having a information storing unit for storing information;

• comprising:
• a deciding unit that decides whether in-monitoring assertion information representing that the information storing unit is being monitored is recorded by another image forming apparatus or not;
• a recording unit that generates new in-monitoring assertion information and records the same information in the information storing unit if the deciding unit decides that the in-monitoring assertion information is not recorded in the information storing unit by the another image forming apparatus or if the in-monitoring assertion information recorded by the another image forming apparatus satisfies a predetermined condition of an expiration;
• an acquiring unit that acquires information to be an image forming target held by the information storing unit recording the new in-monitoring assertion information through the recording unit;
• and
• an executing unit that executes an image formation processing based on the information to be the image forming target which is acquired by the acquiring unit,
• wherein the recording unit decides that the condition of the expiration is satisfied when an expiration date represented by information indicative of the expiration date elapses if the information is included in the in-monitoring assertion information recorded by the another image forming apparatus, and the recording unit does not generate the in-monitoring assertion information and the executing unit does not execute the image formation processing in that case when the predetermined condition of the expiration is not satisfied if the deciding unit decides that the in-monitoring assertion information is recorded by the another image forming apparatus.