Provided is an image forming apparatus capable of presenting to a user movies that show operation steps for solving a maintenance event occurring in the apparatus without increasing the number of times the user needs to perform the operation of playing the movie. A CPU is configured to play a combination of a plurality of movies as a series of movies that show operation steps for solving a maintenance event occurring in the image forming apparatus. The CPU is further configured to determine a stop point at which the series of movies that is playing stops playing, based on stop point information set for each of the combination of the plurality of movies. The CPU is further configured to stop the series of movies that is playing at the determined stop point.

Provided is an image forming system that reduce a paper jam. The system includes an image forming apparatus and a server to manage the image forming apparatus. A paper jam information receiving part in the server receives paper jam information transmitted from the image forming apparatus. A paper jam information analyzing part analyzes paper jam information. A paper jam information analyzing part generates feed-setting changing information when the feed number of the recording paper in the paper feed source where the paper jam occurred corresponds to a threshold and another paper feed source with same settings of a recording paper is present. Feed-setting changing information is information instructed to change into the respective paper feed source. A feed-setting changing information transmitting part transmits feed-setting changing information to the image forming apparatus.

An image forming apparatus capable of performing recovery printing while avoiding wasteful discarding of printed sheets following a defective sheet. An image is formed on a sheet by an image forming section based on an input job and is inspected. An inserter inserts sheets placed thereon into sheets conveyed from the image forming section. When a defective sheet is detected, the job is interrupted, and the defective sheet and subsequent sheets already printed are discharged to a different destination from a destination of normal sheets. Resuming the interrupted job is instructed by a user, and an image to be printed on the defective sheet is formed on a sheet newly fed from a sheet feeder, and the sheet is discharged to the destination of normal sheets, and sheets placed on the inserter are discharged to the same.

A printer control method prevents the user from repeatedly executing an error recovery operation when a cutter error occurs. The printer 2 has a cutter 22 that moves a movable knife 32 between a home position HP and cutting position CP and cuts recording paper 6 at the cutting position CP. When a cutter error in which the movable knife 32 does not return from the home position HP is detected (step ST5), the host device 3 reports a cutter error (step ST6). When the printer 2 executes a cutter error recovery operation (step ST9) and again detects a cutter error (step ST5), it detects a non-recoverable error as being unable to recover from the cutter error (step ST10), and reports the non-recoverable error (step ST11).

An information processing device is provided. The information processing device 20 includes a receiving part 452 configured to receive: paper jam occurrence information about a paper jam that has occurred in an image forming device 30; and sensor output log data associated with one or a plurality of sensors provided in the image forming device 30 to detect paper jam removal tasks performed in response to occurrence of the paper jam. The information processing device 20 includes a memory part configured to store procedural task data 354, in which one or a plurality of procedural tasks for removing the paper jam are described. The information processing device 20 includes an output control part 460 configured to output a task analysis result obtained based on: the procedural task data associated with the paper jam occurrence information; and the sensor output log data.

A printer according to an embodiment includes a printing unit that prints on a sheet. The sheet is discharged through an outlet. The sheet is conveyed on a sheet conveyance path through the printing unit and to the outlet. A movable device is located on the sheet conveyance path upstream of the outlet in a sheet conveying direction. The movable device can move between a separation position, a proximity position, and a protruding position. A detection device detects a position of the movable device. A controller determines a conveyance abnormality of the sheet based on the state of the movable device detected by the detection device, and outputs a signal indicating the conveyance abnormality.

A reversing roller pair is controlled such that, when an abnormality occurs during the conveying of a sheet, the sheet is conveyed in a forward direction by the reversing roller pair, and is controlled to continue conveying until a state where the final sheet among the sheets conveyed in the forward direction is detected by a first detection portion, and subsequently to stop in a state where the final sheet is nipped by the reversing roller pair.

An image forming apparatus includes an image forming unit, a conveying unit and a control unit, the control unit has a function of image formation correcting of performing correction of the image forming unit in response to a reading result of an image on the transfer medium, and a function of prepurge processing of, when a paper jam occurs, performing control to discharge a valid medium located on a downstream side of a position where the paper jam occurs to outside the conveyance path and discharge a medium located on an upstream side of the position where the paper jam occurs to outside the conveyance path, and, when the paper jam occurs, and the medium being conveyed includes a medium for correction to be used for image formation correcting, the control unit performs control to perform the prepurge processing and continue the image formation correcting.

Sheet media jams are detected along a media transport path by one or more vibration sensors that capture mechanical movements of components along the path that interact with the sheet media for driving or guiding the sheet media along the transport path. The detected vibrations during the advancing of the sheets are analyzed for distinguishing between detected vibrations associated with normal handling of the sheets and detected vibrations associated with abnormal handling of the sheets. An error condition can be signaled to a control system in response to distinguishing the detected vibrations associated with the abnormal handling of the sheets.

A method and print system for stopping the print system are disclosed. The print system includes a control unit for controlling the printing of sheets, a print engine for printing recording material on the sheets, an input tray for holding sheets to be printed upon, and a finishing unit. The method includes scheduling printing and finishing of a plurality of sheets, including sending a sheet request from the control unit to the finishing unit, and upon receiving the sheet request, the finishing unit provides an earliest expected arrival time of a sheet at the finishing unit to the control unit. When this time is too huge, operator intervention is required and the finishing unit reports an error to the control unit, after a previous sheet has been deposited in the finishing unit, and the control units stops the print engine before the sheet leaves the input tray.