Abstract: A roll-paper printing apparatus includes a paper feeder that feeds roll paper, a printer that forms an image based on a job on the roll paper, an image scanner that scans the image formed on the roll paper, and a reeler that reels the roll paper, and the roll-paper printing apparatus includes a hardware processor that acquires the image scanned by the image scanner and detects an abnormal output in comparison between the image based on the job and the scanned image, and determines whether output of the job continues or stops, in accordance with a previously set condition, wherein, when the roll paper is cut in a passage direction of the roll paper into a plurality of lanes arrayed in a width direction of the roll paper, the hardware processor continues, in a case where the abnormal output is detected on a lane, the output of the job.

Abstract: An image forming system in which distributed processing of a job is performed by a plurality of image forming apparatuses and each of the image forming apparatuses inspects an output image formed on paper by distributed processing. Among the image forming apparatuses which perform distributed processing, one or more image forming apparatuses generate data for abnormal image detection which is required to inspect the output image in the image forming apparatuses to perform the distributed processing.

Abstract: An image forming apparatus used for an image forming system that outputs a job in a plurality of image forming apparatuses in a distributed manner, the image forming apparatus including: a communication unit that communicates with other image forming apparatuses; and a control unit that controls the communication and a distributed output of the job and includes state information on the plurality of the image forming apparatuses. The control unit determines, according to the states of each of the image forming apparatuses, the image forming apparatus for printing of a reference test chart on a transfer medium, the test chart being used as a reference for an image formation adjustment in each of the image forming apparatuses.

Abstract: A roll-paper printing apparatus includes a paper feeder that feeds roll paper, a printer that forms an image based on a job on the roll paper, an image scanner that scans the image formed on the roll paper, and a reeler that reels the roll paper, and the roll-paper printing apparatus includes a hardware processor that acquires the image scanned by the image scanner and detects an abnormal output in comparison between the image based on the job and the scanned image, and determines whether output of the job continues or stops, in accordance with a previously set condition, wherein, when the roll paper is cut in a passage direction of the roll paper into a plurality of lanes arrayed in a width direction of the roll paper, the hardware processor continues, in a case where the abnormal output is detected on a lane, the output of the job.

Abstract: An image forming system in which distributed processing of a job is performed by a plurality of image forming apparatuses and each of the image forming apparatuses inspects an output image formed on paper by distributed processing. Among the image forming apparatuses which perform distributed processing, one or more image forming apparatuses generate data for abnormal image detection which is required to inspect the output image in the image forming apparatuses to perform the distributed processing.

Abstract: An image forming apparatus used for an image forming system that outputs a job in a plurality of image forming apparatuses in a distributed manner, the image forming apparatus including: a communication unit that communicates with other image forming apparatuses; and a control unit that controls the communication and a distributed output of the job and includes state information on the plurality of the image forming apparatuses. The control unit determines, according to the states of each of the image forming apparatuses, the image forming apparatus for printing of a reference test chart on a transfer medium, the test chart being used as a reference for an image formation adjustment in each of the image forming apparatuses.

Abstract: An image forming apparatus, includes an image forming section to form an image on a paper sheet based on image data; an output image reading section to read the image formed on the paper sheet by the forming section and to produce formed image data; a data memory section to memorize various kinds of data; an attribution information producing section to discriminate the contents of the formed image data and to produce attribution information which shows the attribute of the formed image data; and a control section to control image formation by the image forming section, reading by the output image reading section, and memorizing by the data memory section, wherein the control section controls the memorizing by the data memory section for formed image relating information in association with the formed image data based on the attribution information.

Abstract: An image formation unit that forms an image on a transfer medium, a conveyance unit that conveys the transfer medium, a control unit that controls formation of the image and conveyance of the transfer medium are provided. The control unit has a sheet gap image forming function of forming a predetermined toner image in a sheet gap between the transfer media conveyed by the conveyance unit. When the transfer medium is conveyed, the control unit acquires information of a tilt angle on a conveyance surface of the transfer medium conveyed to the image formation unit, calculates a sheet gap between the transfer media based on the tilt angle, determines whether or not a toner image of a required amount is able to be formed in the sheet gap when performing the sheet gap image forming function, and controls formation of the sheet gap image based on the determination result.

Abstract: An image formation unit that forms an image on a transfer medium, a conveyance unit that conveys the transfer medium, a control unit that controls formation of the image and conveyance of the transfer medium are provided. The control unit has a sheet gap image forming function of forming a predetermined toner image in a sheet gap between the transfer media conveyed by the conveyance unit. When the transfer medium is conveyed, the control unit acquires information of a tilt angle on a conveyance surface of the transfer medium conveyed to the image formation unit, calculates a sheet gap between the transfer media based on the tilt angle, determines whether or not a toner image of a required amount is able to be formed in the sheet gap when performing the sheet gap image forming function, and controls formation of the sheet gap image based on the determination result.

Abstract: An image forming apparatus communicably connected to another image forming apparatus through a network includes a printer unit, a communication unit enabling a connection with another image forming apparatus, and a control unit that executes a first operating system (OS) operating on the first image forming apparatus and a control program operating on the first OS and performing a process relating to image formation, and enables a second OS performing other processes in parallel with the operation of the first OS to be operable. The control unit selects and determines another image forming apparatus in which the second OS is operable based on a process state relating to the image formation of the image forming apparatus operating the second OS, transmits an operating state of the second OS at that time point to the other image forming apparatus, and executes the second OS on the other apparatus.

Abstract: An image forming apparatus includes a printer unit to form an image and outputting the image on a sheet, a storage unit, a control unit to control hardware resources of the image forming apparatus including at least the printer unit and the storage unit by executing a first OS that is activated on the image forming apparatus and a control program operating on the first OS and that can execute second to N-th OSs that activate at least one application and an emulator disposed between the first OS and the second to N-th OSs to allow the second to N-th OSs to operate on the first OS, wherein the control unit can cause the first OS to enter into a sleep mode and inhibits the first OS from entering into the sleep mode when at least one of the second to N-th OSs is active.

Abstract: An image forming apparatus, includes an image forming section to form an image on a paper sheet based on image data; an output image reading section to read the image formed on the paper sheet by the forming section and to produce formed image data; a data memory section to memorize various kinds of data; an attribution information producing section to discriminate the contents of the formed image data and to produce attribution information which shows the attribute of the formed image data; and a control section to control image formation by the image forming section, reading by the output image reading section, and memorizing by the data memory section, wherein the control section controls the memorizing by the data memory section for formed image relating information in association with the formed image data based on the attribution information.

Abstract: An image forming system includes a first image forming apparatus and a second image forming apparatus coupled in tandem to the first image forming apparatus which are assigned differently to print images on respective different regions on a recording sheet. The first image forming apparatus includes two compressing and expanding sections and is configured to receive both image data to be printed by the first image forming apparatus and image data to be printed by the second image forming apparatus. When performing any one process of a compressing process and an expanding process for the image data to be printed by the first image forming apparatus and a compressing process for the image data to be printed by the second image forming apparatus, a compressing and expanding section being used for no process is selected from the two compressing and expanding sections, and assigned to perform the any one process.

Abstract: An image forming apparatus communicably connected to another image forming apparatus through a network includes a printer unit, a communication unit enabling a connection with another image forming apparatus, and a control unit that executes a first operating system (OS) operating on the first image forming apparatus and a control program operating on the first OS and performing a process relating to image formation, and enables a second OS performing other processes in parallel with the operation of the first OS to be operable. The control unit selects and determines another image forming apparatus in which the second OS is operable based on a process state relating to the image formation of the image forming apparatus operating the second OS, transmits an operating state of the second OS at that time point to the other image forming apparatus, and executes the second OS on the other apparatus.

Abstract: An image forming apparatus includes a control unit that controls hardware of at least the image forming apparatus by executing a first operating system and a control program that operates on the first operating system to control the image forming apparatus and that can operate the other operating system that activates at least one application. Management data that correlates information related to data, an application that uses the data and the other operating system that activates the application are stored in a storage unit, wherein the control unit has a function of displaying a list of the data on a screen, and when data is selected from the list of the data and a predetermined operation is performed, the control unit operates the other operating system and the application that are correlated with information on the selected data.

Abstract: An image forming apparatus includes a printer unit to form an image and outputting the image on a sheet, a storage unit, a control unit to control hardware resources of the image forming apparatus including at least the printer unit and the storage unit by executing a first OS that is activated on the image forming apparatus and a control program operating on the first OS and that can execute second to N-th OSs that activate at least one application and an emulator disposed between the first OS and the second to N-th OSs to allow the second to N-th OSs to operate on the first OS, wherein the control unit can cause the first OS to enter into a sleep mode and inhibits the first OS from entering into the sleep mode when at least one of the second to N-th OSs is active.

Abstract: An image forming apparatus includes: a printer unit that forms an image based on image data and outputs the image on a sheet; and a control unit that controls hardware resources of the image forming apparatus including at least the printer unit by executing a first operating system that is activated on the image forming apparatus and a control program that operates on the first operating system to control the image forming apparatus. The control unit can execute second to N-th (N is an integer of 2 or more) operating systems that activate at least one or more applications and an emulator that is disposed between the first operating system and the second to N-th operating systems to allow the second to N-th operating systems to operate on the first operating system.

Abstract: An image forming system includes a first image forming apparatus and a second image forming apparatus coupled in tandem to the first image forming apparatus which are assigned differently to print images on respective different regions on a recording sheet. The first image forming apparatus includes two compressing and expanding sections and is configured to receive both image data to be printed by the first image forming apparatus and image data to be printed by the second image forming apparatus. When performing any one process of a compressing process and an expanding process for the image data to be printed by the first image forming apparatus and a compressing process for the image data to be printed by the second image forming apparatus, a compressing and expanding section being used for no process is selected from the two compressing and expanding sections, and assigned to perform the any one process.

Abstract: An image forming apparatus includes a storage device having a plurality of storage sections to store divided data for image formation, an image forming section to form an image based on the data stored in the storage device and a control section to control the storage device. The control section compares the number A of storage sections usable for storage in the storage device with the number B of storage sections being used for storage of the data, and, when A>B, reads out the data from the B units of storage sections, divides the read-out data and stores the divided data in parallel in the A units of storage sections, whereby a system performance is not lowered even when the number of storage sections changes.

Abstract: An image forming apparatus connected to a network, including: an operation section for editing a first job ticket specifying an output condition to output image data onto an output medium; an interface section to communicate a remote operation apparatus through the network; and a control section to allow the remote operation apparatus to edit a second job ticket.