An electronic device includes a controller coupled to a device via a signal line. The controller includes an outputter configured to output a predetermined signal to the device by using the signal line, when a predetermined abnormality occurs at the controller; and a power controller configured to control an operation of cutting off power supplied to the device, after a predetermined assurance time has passed from when the predetermined signal has been output.

A method of diagnosing a printer's status using an encoded image printed and/or displayed by the printer. The printer can produce an encoded image, such as a barcode, that indicates status values in one or more categories. A client device with a camera, such as a smartphone, can take a picture of the encoded image and transmit it to a printer status server. The printer status server can analyze the status values encoded in the encoded image to diagnose problems with the printer, and can return applicable user instructions indicating how to fix and/or prevent the problems.

If an operation of canceling a predetermined state includes an operation of powering off the device, even if communication between the device and the information processing apparatus becomes inexecutable after the screen for cancelling the predetermined state is displayed, the information processing apparatus does not execute a notification corresponding to a state in which the communication is inexecutable. If the operation of canceling the predetermined state does not include the operation of powering off the device, the information processing apparatus executes, based on a fact that the communication between the device and the information processing apparatus becomes inexecutable after the screen for cancelling the predetermined state is displayed, the notification corresponding to the state in which the communication is inexecutable.

Example systems and related methods may relate to processing and printing print data in the case of an error. Namely, a printing device may include a communication interface and a controller. The controller includes a processor configured to execute instructions. The instructions include receiving multi-page print data in a first file format via a communication interface. The instructions also include when an error condition is determined during print data processing, responsively transmitting an error message via the communication interface and storing an error page location. The instructions further include receiving the print data in a second file format and determining a remainder portion and a discard portion of the print data in the second file format based on the error page location. The instructions further include processing the remainder portion of the print data in the second file format.

An image forming apparatus that executes information sharing among a plurality of image forming apparatuses includes a communication circuit, a set value management circuit, a storage circuit, and a distribution hold list management circuit. The communication circuit ensures communication with another image forming apparatus of the plurality of the image forming apparatuses. The set value management circuit distributes, based on a master authority as an authority for distributing a changed set value to the other image forming apparatus, the changed set value to the other image forming apparatus. The storage circuit, when the distribution fails, stores a distribution hold list that includes a combination of: an identifier of another image forming apparatus where the distribution has failed, and an item name and value of a set value where the distribution has failed. The distribution hold list management circuit manages the stored distribution hold list.

A control method for an image forming apparatus configured to perform transmission of information includes performing retransmission of the information a predetermined number of times in a case where the transmission of the information fails, wherein an entry about the retransmission of the information is added to a notification table managed by the image forming apparatus, clearing the entry from the notification table, in a case where the retransmission of the information is completed the predetermined number of times or a case where the image forming apparatus receives a response to the retransmission of the information, and clearing the entry from the notification table in a case where user information necessary for the retransmission of the information is changed.

Example systems and related methods may relate to processing and printing print data in the case of an error. Namely, a printing device may include a communication interface and a controller. The controller includes a processor configured to execute instructions. The instructions include receiving multi-page print data in a first file format via a communication interface. The instructions also include when an error condition is determined during print data processing, responsively transmitting an error message via the communication interface and storing an error page location. The instructions further include receiving the print data in a second file format and determining a remainder portion and a discard portion of the print data in the second file format based on the error page location. The instructions further include processing the remainder portion of the print data in the second file format.

An image forming apparatus includes a storage device and a processing circuit. The storage device is configured to store a malfunction log in the image forming apparatus. The processing circuit is configured to control, if a job includes an operation relating to the malfunction log, a start timing of at least one of the operation and a next operation following the operation in the job.

An image processing apparatus includes a processing unit, a storing unit, a detecting unit, and a controller. The processing unit processes a processing target of image processing in accordance with image processing setting for the processing target and an image processing program. The storing unit stores at least one occurrence condition for a failure at the processing unit. The detecting unit detects, in accordance with a detection program, whether or not the processing target or the setting satisfies the occurrence condition for the failure. The controller performs control for presenting information for avoiding the failure or control for avoiding the failure when the detecting unit detects that the occurrence condition for the failure is satisfied.

Example systems and related methods may relate to processing and printing print data in the case of an error. Namely, a printing device may include a communication interface and a controller. The controller includes a processor configured to execute instructions. The instructions include receiving multi-page print data in a first file format via a communication interface. The instructions also include when an error condition is determined during print data processing, responsively transmitting an error message via the communication interface and storing an error page location. The instructions further include receiving the print data in a second file format and determining a remainder portion and a discard portion of the print data in the second file format based on the error page location. The instructions further include processing the remainder portion of the print data in the second file format.