A non-transitory computer readable medium storing computer readable instructions configured to, when executed by a processor of a computer, cause the processor to: perform a print instruction receiving process comprising receiving a print instruction from an operating system; in response to receiving the print instruction, perform a preparation instruction process comprising transmitting preparation instruction information to a printer, the preparation instruction information being information for instructing execution of at least a part of at least one pre-printing operation, the at least one pre-printing operation being executed by the printer to record an image having particular quality in the printing operation, the particular execution condition being the execution condition changing operation content of the at least one pre-printing operation; in response to executing the preparation instruction process, perform a generating process comprising generating print data; and perform a print instruction process comprising transmitting print instruction information to the printer.

A conveying device includes a sensor to read a sheet to be conveyed, a first conveyor arranged on an upstream side from the sensor in a sheet conveying direction of the sheet, a second conveyor arranged on a downstream side from the sensor in the sheet conveying direction, and correcting circuitry to correct a distance of the sheet having an error detected when the sensor reads the sheet conveyed by the first conveyor and the second conveyor, to an actual distance. The correcting circuitry uses at least a first correction value correcting a distance read by the sensor when the first conveyor conveys the sheet and a second correction value correcting a distance read by the sensor when the second conveyor conveys the sheet.

An image forming apparatus includes: a plurality of paper feed trays that feed accommodated sheets of paper; a detector that detects absence of paper in the paper feed trays; an image former that forms an image on a sheet of paper fed from one of the paper feed trays based on a print job; and a hardware processor that identifies a job attribute of the print job issued, selects a first tray switching condition or a second tray switching condition that is more lenient than the first tray switching condition in accordance with the job attribute identified, and in response to the detector detecting absence of paper in the paper feed tray in use during execution of the print job, switches to another paper feed tray that satisfies the tray switching condition selected.

An information processing apparatus includes an obtaining unit and a calculation unit. The obtaining unit obtains sheet information about sheets accommodated in a sheet accommodation unit among sheet accommodation units in accordance with a print condition specified in a print to perform printing in accordance with the print instruction on the basis of the print condition and the sheet information.

An image forming apparatus includes: a plurality of output trays; a storage device that stores a table, each of the plurality of output trays and a combination of a plurality of attributes of sheets-allowed-to-be-output being registered in association with each other in the table; and a controller that receives a print request, the print request including a plurality of attributes of a sheet-to-be-printed, determines whether or not a combination of the plurality of attributes included in the print request is registered in the table, if determining that the combination is not registered in the table, selects an output tray as a tray-to-catch-output-sheet with reference to the table, at least one attribute included in the print request being registered in association with the output tray selected, and if determining that none of the plurality of attributes included in the print request is registered in the table, selects no tray-to-catch-output-sheet.

In an information processing apparatus, a processor determines, on the basis of a setting value, at least one image process to be performed on the first scan data. The processor performs a clipping process on first scan data to generate second scan data including original scan data and not including outer scan data. The processor performs an edge correction process on the second scan data to generate third scan data by correcting edge data of the original scan data. The processor performs a characteristic acquisition process on the third scan data to acquire characteristic information indicating a characteristic of the third scan data. The processor performs a specific process on the second scan data by using the characteristic information in a case where both the clipping process and the characteristic acquisition process are determined to be performed and the edge correction process is determined not to be performed.

A reflected light amount from a patch under a first light source is acquired, and a reflected light amount from the patch under a second light source whose wavelength band is different from the first light source is acquired. The type of a printing medium on which the patch is printed is determined based on the ratio of the two acquired reflected light amounts.

Provided is an image forming apparatus capable of detecting a type of a sheet accommodated in a sheet feeding tray in advance. The image forming apparatus includes a conveyor, an image former, a fixer, a detector, and a processor. The conveyor conveys the sheet accommodated in the sheet feeding tray along a conveying path. The image former forms an image on the sheet. The fixer fixes the image onto the sheet. The detector is arranged on the conveying path and detects the type of the sheet. The processor executes a sheet type detection mode which is a mode for causing the detector to detect the type of the sheet conveyed by the conveyor before executing an. image forming mode which is a mode for causing the image former to form the image and causing the fixer to fix the image.

A control method in a printing apparatus includes printing, by a printing unit, an adjustment image for adjusting a printing position on a sheet, conveying, by a conveying unit, the sheet on which the adjustment image is printed, reading, by a reading unit, an image to generate image data, the reading unit being executable to perform reading by a first reading method for reading an image of a sheet without conveying the sheet or a second reading method for reading the image of the sheet while conveying the sheet, and determining, based on that a type of the sheet on which the adjustment image is to be printed is a specific type, to read the adjustment image by the first reading method.

A position detecting device includes an image sensor and circuitry. The image sensor is configured to read reflected light of light emitted from a light source onto a medium to be read. The circuitry is configured to perform black correction processing on an output signal of the image sensor using black correction data of the image sensor and detect a position of the medium from the output signal after the black correction processing.