An image forming apparatus includes an image forming device and circuitry. The image forming device forms an image on a recording medium, based on an image forming condition. The circuitry determines a position of the image formed on the recording medium by the image forming device, based on a detection signal of a pattern formed on the recording medium by the image forming device and reference position information of the pattern on the recording medium. The circuitry determines a reference position of the pattern differently depending on the image forming condition.

A recording medium determination device includes a light emitter, a light detector, and a hardware processor. The light emitter emits inspection light to a recording medium. The light detector detects incident light including at least one of diffuse reflected light of the inspection light emitted to the recording medium and fluorescent light excited by the inspection light in the recording medium. The hardware processor makes a determination depending on a property of the recording medium based on a detection result of first incident light of the incident light in accordance with first inspection light of the inspection light and second incident light of the incident light in accordance with second inspection light of the inspection light obtained by the light detector. The second inspection light has an intensity whose peak wavelength is shorter than the peak wavelength of the first inspection light.

A sheet discharge device includes: at least one processor; a conveyance unit configured to convey a sheet along a conveyance path; a discharge unit to which the sheet is discharged; a storage unit that is provided in a middle of the conveyance path and temporarily stores the sheet; an alignment unit provided in the discharge unit and configured to align the sheet in a width direction intersecting a convey direction of the sheet, in which the processor is configured to change a method of aligning the sheets by the alignment unit between a case where storage control for storing the sheets in the storage unit is performed and a case where the storage control is not performed.

An image processing apparatus includes a processor configured to: store a first color patch used in using metallic toner and a second color patch used in using CMYK toner other than the metallic toner without using the metallic toner; receive a first colorimetric value obtained by measuring color of the first color patch and a second colorimetric value obtained by measuring color of the second color patch; calculate a third colorimetric value on a basis of the first colorimetric value obtained by measuring the color of the first color patch and the second colorimetric value obtained by measuring the color of the second color patch, and generate a profile to be used to convert an input color value into an output color value, the profile being generated on a basis of the third colorimetric value; and calculate the third colorimetric value that ranges from the first colorimetric value to the second colorimetric value in response to a total amount of CMYK toner being lower than or equal to a threshold, the total amount of the CMYK toner resulting from color conversion of the input color value performed by using the profile, and calculate the third colorimetric value that coincides with the first colorimetric value in response to the total amount exceeding the threshold.

In an image forming apparatus, upon receipt of a printing instruction, a controller starts rotation of a heating member, starts rotation of a photoconductor drum when a standby time has elapsed from a time of the start of the rotation of the heating member, starts conveyance of a sheet after the start of the rotation of the photoconductor drum, and forms a toner image on the sheet after the start of the conveyance of the sheet. The controller is configured to be operated in one of selectable modes including a multicolor mode in which a toner image is formed using both of toner of a first color and a second color and a monochrome mode in which a toner image is formed using toner of the second color only. The standby time adopted in the monochrome mode is longer than the standby time adopted in the multicolor mode.

An image forming system includes: an image former that forms a label image on a long sheet conveyed in a sheet conveyance direction on a basis of a print job; an image defect detector that detects an image defect of the label image that is formed; and a sheet conveyer that conveys the long sheet in accordance with the label image where the image defect is detected after execution of the print job has been completed.

A print system having an information processing apparatus and a printing apparatus configured to receive a print job from the information processing apparatus and execute printing. The information processing apparatus sets so as to insert a chart sheet on which patches for tone correction have been printed for the print job. In a case where the print job includes a setting to insert the chart sheet, the printing apparatus controls whether or not to insert the chart sheet based on a type of sheet to be used in the print job.

An apparatus according to the aspect of the embodiments includes a phase determiner configured to determine a rotational phase of a rotor, a speed determiner configured to determine a rotational speed of the rotor, a controller having a first control mode for controlling the motor by supplying constant currents to windings, and a discriminator configured to discriminate whether a rotation of the motor is abnormal based on the rotational speed when the rotational speed corresponding to a command speed is equal to or higher than a predetermined value in a state where the controller is controlling the motor in the first control mode. When a signal output from the discriminator indicates that the rotation of the motor is abnormal, the controller stops the motor. When the signal output from the discriminator indicates that the rotation is not abnormal, the controller continues a drive of the motor.

A sheet punching apparatus includes a waste box formed of insulating resin, a detection sensor provided in the waste box and configured to detect the amount of paper chips in the waste box, and a conductive member disposed such that at least a part thereof is positioned in midair in the waste box below the detection sensor. With this configuration, erroneous detection of the detection sensor can be prevented.

A transfer device for an image forming apparatus includes a frame, a driving roller, a backup roller, and a transfer belt to travel between the driving roller and the backup roller. The transfer device further include meandering prevention members to rotate independently of the backup roller, the meandering prevention members including a first meandering prevention member located between a first end portion of the backup roller and the frame, and a second meandering prevention member located between a second end portion of the backup roller and the frame. When the transfer belt meanders and contacts one of the first and second meandering prevention members, the one of the first and second meandering prevention members is to be rotatably driven to increase a tension of the transfer belt.