Abstract: An image forming apparatus includes an operation unit that receives an instruction for an operation and executes the operation, and an instruction unit that outputs the instruction to the operation unit. The operation unit includes a configuration storage unit that stores deployment configuration of one or more image forming apparatuses, and an instruction acceptance unit that accepts an instruction for an operation corresponding to the deployment configuration.

Abstract: An image forming apparatus includes an operation unit that receives an instruction for an operation and executes the operation, and an instruction unit that outputs the instruction to the operation unit. The operation unit includes a configuration storage unit that stores deployment configuration of one or more image forming apparatuses, and an instruction acceptance unit that accepts an instruction for an operation corresponding to the deployment configuration.

Abstract: Provided is a printing device including a print data receiving unit, a page calculation unit that calculates a number of pages before stopping with using a page length of received print data and a distance from a printing mechanism unit to a visual recognition unit, a print instruction unit that changes the number of pages before stopping or a number of printed pages and performs print processing when the received print data corresponds to a control page for controlling printing, and a print stop unit that stops printing when the number of printed pages coincides with the number of pages before stopping.

Abstract: Provided is a printing device including a print data receiving unit, a page calculation unit that calculates a number of pages before stopping with using a page length of received print data and a distance from a printing mechanism unit to a visual recognition unit, a print instruction unit that changes the number of pages before stopping or a number of printed pages and performs print processing when the received print data corresponds to a control page for controlling printing, and a print stop unit that stops printing when the number of printed pages coincides with the number of pages before stopping.

Abstract: A print control apparatus includes a generating section, a converting section, a calculating section, and a selecting section. The generating section generates intermediate data by analyzing print data, the intermediate data being data in a stage preceding raster data that is a group of pixels. The converting section converts the intermediate data generated by the generating section into the raster data. The calculating section calculates an expected processing time, the expected processing time being an expected time to be spent on converting a predetermined amount of intermediate data generated by the generating section into raster data. The selecting section selects, as a printing speed of a print mechanism unit, any one of plural predetermined speeds by using the expected processing time calculated by the calculating section.

Abstract: A history storage device includes: a storage unit that, in storing first history information including phenomenon information corresponding to a phenomenon having occurred and accompanying information accompanying the phenomenon information in a storage region, when the phenomenon information included in the first history information is duplication of phenomenon information included in second history information having already been stored in the storage region, deletes the phenomenon information included in the first history information and stores, in the storage region, the accompanying information which is included in the first history information and is associated with the phenomenon information; and a reconstruction unit that, in reading out the first history information from the storage region, based on the phenomenon information with which the accompanying information included in the first history information is associated, reconstructs the deleted phenomenon information, to thereby reconstruct the firs

Abstract: An image processing apparatus includes a print information acquisition unit that acquires a plurality of pieces of print information of each print job to be performed on an image forming unit configured to form an image on a recording material, the plurality of pieces of print information divided by a predetermined number of parallel processes and arranged in ascending or descending discrete page order, a command analyzing unit that command-analyzes the acquired print information, a rasterizing unit that rasterizes the command-analyzed print information to generate raster data, and a concatenating unit that concatinates the generated raster data in a consecutive page order. The print image acquisition unit, the command analyzing unit, and the rasterizing unit perform parallel processes thereof on the print information.

Abstract: A history storage device includes: a storage part that stores information; a device status information obtaining unit that obtains device status information related to a status of an image forming apparatus in forming an image, the image forming apparatus including an image forming part that forms the image corresponding to an image forming instruction; and an association unit that, when the image forming instruction satisfies a preset condition, associates the image forming instruction with the device status information obtained by the device status information obtaining unit when the image corresponding to the image forming instruction is formed, and causes the storage part to store the associated image forming instruction and device status information.

Abstract: A history storage device includes: a storage unit that, in storing first history information including phenomenon information corresponding to a phenomenon having occurred and accompanying information accompanying the phenomenon information in a storage region, when the phenomenon information included in the first history information is duplication of phenomenon information included in second history information having already been stored in the storage region, deletes the phenomenon information included in the first history information and stores, in the storage region, the accompanying information which is included in the first history information and is associated with the phenomenon information; and a reconstruction unit that, in reading out the first history information from the storage region, based on the phenomenon information with which the accompanying information included in the first history information is associated, reconstructs the deleted phenomenon information, to thereby reconstruct the firs

Abstract: When a control unit is in a non-operating (non-printing) state, data to be saved (character-image data) in a RAM cache memory is transferred to a disk cache memory at regular intervals in order of priority, thereby saving the data in the disk cache memory. If a power supply is cut off and then power is reintroduced, high-priority character-image data, which has been transferred from the RAM cache memory to the disk cache memory and saved in the disk cache memory when printing is not being carried out, is restored in the RAM cache memory. As a result, the high-priority data saved in the RAM cache memory when the power supply was cut off can be restored in the RAM cache memory, thereby raising the hit rate.

Abstract: A method for transferring data from one memory to another within a memory hierarchy in a data processing system. The memory hierarchy includes a random access memory (RAM) cache within a control unit and a lower level disk cache memory. When the control unit is in a non-operating (non-printing) state, data to be saved (character-image data) in the RAM cache memory is transferred to the disk cache memory at regular intervals in order of priority, thereby saving the data in the disk cache memory. If a power supply is cut off and then power is reintroduced, high-priority character-image data, which has been transferred from the RAM cache memory to the disk cache memory and saved in the disk cache memory when printing is not being carried out, is restored in the RAM cache memory. As a result, the high-priority data saved in the RAM cache memory when the power supply was cut off can be restored in the RAM cache memory, thereby raising the hit rate.

Abstract: An image control apparatus includes a communication control unit for effecting a communication with the outside of the apparatus, an image processing control unit for controlling processings required for a given image data, and a main control unit for controlling the communication control unit and the image processing control unit. Respective control units are provided on separate printed boards, respectively, and each printed board is connected to each other using respective connectors. By the constitution, it is possible to make a maximum use of resources such as hardware resources and thereby improve an efficiency in development of the image control apparatus. Also, by mounting the above printed boards with being divided into lower-side units and upper-side units, it is possible to increase the component mounting space and to have the printed board drawings for common use.