An image recording device includes a recorder, a reader and a hardware processor. The recorder records an image on a recording medium. The reader reads, with an imaging element, a surface of the recording medium and a surface of a predetermined reference member. The hardware processor calibrates the reader for a value to be detected by the imaging element, based on a reading result of the reading of the surface of the reference member. Further, the hardware processor performs the calibration in at least one of: a case where a type of the image to be recorded on the recording medium satisfies a predetermined image type condition; and a case where a predetermined reading influence factor which affects a reading result of the reading of the surface of the recording medium satisfies a predetermined reading influence factor condition.

Methods and apparatus for predicting colorant usage by printing devices are provided. A prediction server can receive a request to predict colorant usage for a first printing device. The prediction server can determine first plurality of functions to predict colorant usage for the first printing device. The first plurality of functions can include at least one linear function and at least one non-linear function. The first plurality of functions can be based on colorant-usage rates indicating historical rates of change in colorant used by the first printing device. The prediction server can determine a prediction of colorant usage for the first printing device using the first plurality of functions. The prediction server can provide an output involving the prediction of colorant usage for the first printing device, where the prediction of colorant usage can include a confidence interval related to the prediction.

The image forming apparatus includes the power supply board for generating a +24V power supply voltage and a driver board for driving a load for forming an image, and an engine control board for controlling an operation of a driver board. The driver board includes a fuse which receives the 24V power supply voltage supplied from the power supply board. The driver board drives the load by +24V_FU1 voltage output from the fuse. The engine control board identifies, when an abnormality occurs in an operation of the load, a board that is a cause of the abnormality according to a voltage value of the +24V_FU1 voltage and the voltage value of the power supply voltage.

An information processing apparatus is communicably connected to one or more image forming apparatuses each including: an image forming device that forms an image on a recording medium; an image reading device that reads the image to obtain read image data; and an image forming controller that executes a first inspection and detects in the read image data an image defect corresponding to a predetermined inspection item at a first cycle, the information processing apparatus including: a processing controller that: acquires inspection source data based on the read image data obtained from at least one of the image forming apparatuses, and executes a second inspection to inspect the inspection source data.

Based on a correction value that is stored in a correction value storage, correcting circuitry corrects printing data that is acquired according to a printing instruction that is transmitted from a higher-level device. When an image forming unit determines, in response to reception of the printing instruction, that timing of reception of the printing instruction meets a given condition, the image forming unit suspends the printing instruction, requests the correcting circuitry to update the correction value, and forms an image based on the printing data that is corrected by the correcting circuitry. When the image forming unit requests the correcting circuitry to update the correction value, the correcting circuitry updates the correction value that is stored in the correction value storage based on the image that is formed by the image forming unit according to measurement pattern printing data that is stored in a measurement pattern storage.

Disclosed is an image forming apparatus, including: a job receiver that receives a print job; a printer that executes an image forming in accordance with the print job received by the job receiver; and a hardware processor that: receives an adjustment content and a setting of an execution starting condition of an adjustment for an adjustment item relating to the image forming, and registers the adjustment content and the execution starting condition as a profile; and executes the adjustment in accordance with the adjustment content set in the registered profile when the execution starting condition set in the profile is satisfied.

A method to diagnosis an electro-mechanical part on an image forming device comprises: determining an incident count for a first time interval for the electro-mechanical part; determining if the incident count for the first time interval exceeds a first threshold level; marking the incident count as a high rate if the incident count exceeds the first threshold level; marking the incident count as a low rate if the incident count is more than 0 but equal to or less than the first threshold level; marking the incident count as a zero rate if the incident count is equal to 0; monitoring the electro-mechanical part for a second time interval, wherein the second time interval is a plurality of first time intervals; cumulating a number of first time intervals with the low rate during the second time intervals; and marking the electro-mechanical part as needing to be one of repaired or serviced when the number of first time intervals with the low rate during the second time intervals exceeds a second threshold level.

A printer capable of performing communication with a server via a firewall over a printer network includes a roll paper printing mechanism configured to perform printing on roll paper, a cut-form paper printing mechanism configured to perform printing on cut-form paper, and a processor configured to transmit, to the server, at least pairs of address information for the printer and status information for the printer, receive instruction information having been transmitted by the server, and execute processing based on the instruction information, and the processor causes transmission timing points for the transmission of the pairs to the server to differ for each of kinds of the status information.

An image recording device includes a recorder, a reader and a hardware processor. The recorder records an image on a recording medium. The reader reads, with an imaging element, a surface of the recording medium and a surface of a predetermined reference member. The hardware processor calibrates the reader for a value to be detected by the imaging element, based on a reading result of the reading of the surface of the reference member. Further, the hardware processor performs the calibration in at least one of: a case where a type of the image to be recorded on the recording medium satisfies a predetermined image type condition; and a case where a predetermined reading influence factor which affects a reading result of the reading of the surface of the recording medium satisfies a predetermined reading influence factor condition.

A method to diagnosis an electro-mechanical part on an image forming device comprises: determining an incident count for a first time interval for the electro-mechanical part; determining if the incident count for the first time interval exceeds a first threshold level; marking the incident count as a high rate if the incident count exceeds the first threshold level; marking the incident count as a low rate if the incident count is more than 0 but equal to or less than the first threshold level; marking the incident count as a zero rate if the incident count is equal to 0; monitoring the electro-mechanical part for a second time interval, wherein the second time interval is a plurality of first time intervals; cumulating a number of first time intervals with the low rate during the second time intervals; and marking the electro-mechanical part as needing to be one of repaired or serviced when the number of first time intervals with the low rate during the second time intervals exceeds a second threshold level.