An image forming apparatus includes an image-carrying component configured to carry a colorant image including an adjustment image, a transferring component having a recess in an outer peripheral surface and configured to transfer the colorant image from the image-carrying component to a recording medium in a transfer area while rotating in such a manner as to allow a retainer that is retaining the recording medium to pass through the recess, an image-forming component configured to form the adjustment image at such a position of the image-carrying component as to face the recess of the transferring component, and a transporting component configured to cause the recording medium retained by the retainer to pass through the transfer area.

A print apparatus is disclosed. The print apparatus includes a photoconductive surface to receive a latent image representative of an image to be printed onto a printable substrate; a charging component to apply a voltage is to be applied to the photoconductive surface as the charging component moves relative to the photoconductive surface; and processing circuitry to receive data indicative of a measurement of a first current resulting from the voltage applied by the charging component; determine, responsive to detecting an increase in the measured first current relative to a reference current, the increase being greater than a first defined threshold current, that there exists a point defect under affecting the latent image; and generate instruction data responsive to determining that there exists a point defect under affecting the latent image. A method and a machine-readable medium are also disclosed.

A transfer belt transfers a toner image carried on a first main surface to a recording medium. When the transfer belt is pressed by using a lower block provided with a hole and an upper block with pressurization force increased at a prescribed rate and thereafter kept constant, E [-] and t0 are curve-fitted to a function E=exp(t0/) defined by a time constant [s] with respect to an amount of displacement of the transfer belt and a constant [-], where E [-] is calculated as (ab)/b, a [m] represents a maximum value of an amount of displacement of a measurement region, b [m] represents an amount of displacement of the measurement region after converged, and t0 [s] represents a time period from start of pressurization until the maximum pressurization force, and time constant satisfies a condition of 0.0150.1.

A transfer belt transfers a toner image carried on a first main surface to a recording medium. When the transfer belt is pressed by using a lower block provided with a hole and an upper block with pressurization force increased at a prescribed rate and thereafter kept constant, E [-] and t0 are curve-fitted to a function E=exp(t0/) defined by a time constant [s] with respect to an amount of displacement of the transfer belt and a constant [-], where E [-] is calculated as (ab)/b, a [m] represents a maximum value of an amount of displacement of a measurement region, b [m] represents an amount of displacement of the measurement region after converged, and t0 [s] represents a time period from start of pressurization until the maximum pressurization force, and time constant satisfies a condition of 0.0150.1.

When a mechanism enters a first state, an intermediate transfer member separates from a second photosensitive member. When the mechanism enters a second state, the intermediate transfer member contacts the second photosensitive member. When a first monochrome image is formed on a sheet of a first type by using toner of a first color, the mechanism enters the first state. When a second monochrome image is formed on a sheet of a second type by using toner of the first color, the mechanism enters the second state. A rotation speed of the second photosensitive member for forming the second monochrome image on the sheet of the second type is controlled to a predetermined rotation speed. The predetermined rotation speed is slower than a rotation speed of the second photosensitive member for forming the second image.