Abstract: A virtual computer system includes a first saving unit that saves at least one or more snapshots each having recorded therein a state of a virtual machine, the state including an application program installed on the virtual machine, the snapshot being saved as a reference snapshot; an applying unit that applies the reference snapshot to the virtual machine when an execution request for the application program is received; and a second saving unit that saves a state of the virtual machine that executes the application program, the state being saved as a snapshot.

Abstract: An image processing apparatus includes a detection unit and a determination unit. The detection unit detects an error by comparing image data related to a print job with read image data obtained as a result of reading a print output related to the print job. The determination unit compares read image data related to a post-error print output, which is a continuously-printed print output related to the print job for a page subsequent to a page in which the error is detected, with the image data when the error is detected by the detection unit, so as to determine a process for recovering the print job by using the post-error print output.

Abstract: A virtual computer system includes a first saving unit that saves at least one or more snapshots each having recorded therein a state of a virtual machine, the state including an application program installed on the virtual machine, the snapshot being saved as a reference snapshot; an applying unit that applies the reference snapshot to the virtual machine when an execution request for the application program is received; and a second saving unit that saves a state of the virtual machine that executes the application program, the state being saved as a snapshot.

Abstract: An image processing apparatus includes a detection unit and a determination unit. The detection unit detects an error by comparing image data related to a print job with read image data obtained as a result of reading a print output related to the print job. The determination unit compares read image data related to a post-error print output, which is a continuously-printed print output related to the print job for a page subsequent to a page in which the error is detected, with the image data when the error is detected by the detection unit, so as to determine a process for recovering the print job by using the post-error print output.

Abstract: An information processing apparatus includes an extracting unit that extracts features of printing operations of a user, and a measurement unit that measures a processing throughput of executing the printing operations of the user as a substitute for a printing operation as a predetermined standard if a feature of the printing operation serving as the standard matches the features extracted by the extracting unit.

Abstract: A method is furnished for producing a compressible layer for a printing blanket by heating a sheet-shaped intermediate layer of a rubber composition having a structure in which hollow microspheres are dispersed in matrix rubber for one to fifty minutes under certain defined conditions of vulcanizing pressure and temperature using a vulcanizer for applying heat and pressure in direct contact with the intermediate layer. The produced compressible layer exhibits superior compressibility and durability, is uniform in thickness and internal structure, and does not reduce the productivity of the printing blanket and increase the fabrication cost of the printing blanket.

Abstract: The offset blanket of the present invention has a structure comprising no reinforcing layer between its compressive layer and its surface printing layer. The surface printing layer has a thickness in the range of 5 to 20% based on the thickness of the whole blanket, and a hardness of the rubber which constitutes the surface printing layer which is in the range of 40.degree. to 70.degree. Type A, JIS K 6301. The compressive layer has a foam content (void volume) in the range of 30 to 60% and a thickness in the range of 10 to 30% based on the thickness of the whole blanket and a hardness of the rubber matrix constituting the compressive layer which is in the range of 40.degree. to 80.degree. Type A, JIS K 6301. Therefore, the offset blanket of the present invention is superior in paper feeding properties. Further, misregistry can be inhibited and solid inking properties are not deteriorated.

Abstract: The printing offset blanket in accordance with the present invention has a surface printing layer made of a mixture of silicone rubber and oil-resisting rubber. It is therefore possible to prepare ink layers having a uniform thickness and clear edges. Further, the present offset blanket can be improved in paper discharging properties and retention of paper powder, enabling the blanket to be suitably applied to high-speed printing, filter or display prints, or the like. The printing rubber roll of the present invention is made of a mixture of silicone rubber and oil-resisting rubber. Accordingly, the present rubber roll is excellent in stability with respect to ultraviolet-curing ink and can therefore be used for a long period of time.