Patent classifications
B65H9/20
Image forming apparatus and conveyance control method
An image forming apparatus includes: a transfer section that transfers an image onto a sheet; a sheet conveying member that conveys the sheet, the sheet conveying member being provided upstream of the transfer section in a sheet conveyance direction; and a hardware processor that controls displacement of the sheet conveying member so that the sheet is displaced along a width direction of the sheet. The hardware processor sets a displacement speed of the sheet conveying member for the sheet during transfer of the image by the transfer section to be lower than the displacement speed of the sheet conveying member for the sheet before the transfer of the image by the transfer section.
Image forming apparatus and conveyance control method
An image forming apparatus includes: a transfer section that transfers an image onto a sheet; a sheet conveying member that conveys the sheet, the sheet conveying member being provided upstream of the transfer section in a sheet conveyance direction; and a hardware processor that controls displacement of the sheet conveying member so that the sheet is displaced along a width direction of the sheet. The hardware processor sets a displacement speed of the sheet conveying member for the sheet during transfer of the image by the transfer section to be lower than the displacement speed of the sheet conveying member for the sheet before the transfer of the image by the transfer section.
Active registration system utilizing forced air for edge registration
A media handling assembly contains a transport path for driving a document sheet downstream in a process direction. A first side edge extends lengthwise along the process direction. A registration guide edge extends lengthwise along the process direction and is situated opposite the first side edge. The media handling assembly includes at least one nozzle that is arranged proximate the first side edge. The at least one nozzle selectively discharges an airstream transverse the process direction towards the registration guide edge. The airstream drives the sheet against the registration edge guide for side registering and deskewing of the sheet.
Active registration system utilizing forced air for edge registration
A media handling assembly contains a transport path for driving a document sheet downstream in a process direction. A first side edge extends lengthwise along the process direction. A registration guide edge extends lengthwise along the process direction and is situated opposite the first side edge. The media handling assembly includes at least one nozzle that is arranged proximate the first side edge. The at least one nozzle selectively discharges an airstream transverse the process direction towards the registration guide edge. The airstream drives the sheet against the registration edge guide for side registering and deskewing of the sheet.
Registration system with independent laterally adjustable nips
A registration system for a printing device and a method for controlling the same are disclosed. For example, the registration system includes at least one sensor to detect a position of a print media, at least one laterally adjustable nip, wherein the laterally adjustable nip moves along an inboard direction and an outboard direction, a motor coupled to the at least one laterally adjustable nip to move the at least one laterally adjustable nip a desired amount of movement based on the position of the print media and a width of the print media, and a processor communicatively coupled to the at least one sensor and the motor to calculate a desired amount of movement based on the position of the print media and control the motor to move the at least one laterally adjustable nip by the desired amount of movement.
Registration system with independent laterally adjustable nips
A registration system for a printing device and a method for controlling the same are disclosed. For example, the registration system includes at least one sensor to detect a position of a print media, at least one laterally adjustable nip, wherein the laterally adjustable nip moves along an inboard direction and an outboard direction, a motor coupled to the at least one laterally adjustable nip to move the at least one laterally adjustable nip a desired amount of movement based on the position of the print media and a width of the print media, and a processor communicatively coupled to the at least one sensor and the motor to calculate a desired amount of movement based on the position of the print media and control the motor to move the at least one laterally adjustable nip by the desired amount of movement.
Medium conveying apparatus for correcting a skew of a medium using three sensors
A medium conveying apparatus includes a plurality of feed rollers, each feed roller rotating independently at a respective speed to feed a medium, a first sensor located on a downstream side of the plurality of feed rollers in a medium conveying direction and also in a central part in a direction perpendicular to the medium conveying direction, to detect the medium, a second sensor and a third sensor located on both sides of the first sensor in the direction perpendicular to the medium conveying direction, to respectively detect the medium, and a processor to change the speed of one of the plurality of feed rollers at least until the first sensor detects the medium when any of the second sensor or the third sensor detects the medium and the first sensor does not detect the medium within a predetermined time.
Medium conveying apparatus for correcting a skew of a medium using three sensors
A medium conveying apparatus includes a plurality of feed rollers, each feed roller rotating independently at a respective speed to feed a medium, a first sensor located on a downstream side of the plurality of feed rollers in a medium conveying direction and also in a central part in a direction perpendicular to the medium conveying direction, to detect the medium, a second sensor and a third sensor located on both sides of the first sensor in the direction perpendicular to the medium conveying direction, to respectively detect the medium, and a processor to change the speed of one of the plurality of feed rollers at least until the first sensor detects the medium when any of the second sensor or the third sensor detects the medium and the first sensor does not detect the medium within a predetermined time.
Adjustment of feeder trays to correct alignment error of print media in a registration subsystem
A method, non-transitory computer readable medium, and apparatus for automatically adjusting a feeder tray of a printing device are disclosed. For example, the method receives a signal to initiate a feeder tray adjustment routine, wherein the feeder tray adjustment routine determines an amount of lateral adjustment of the feeder tray to eliminate a lateral input error of a print media that is fed to a registration subsystem of the printing device, activates a mechanism to adjust a lateral position of the feeder tray by the amount that is determined, and feeds subsequent print media through the registration subsystem for printing an image on the subsequent print media.
Adjustment of feeder trays to correct alignment error of print media in a registration subsystem
A method, non-transitory computer readable medium, and apparatus for automatically adjusting a feeder tray of a printing device are disclosed. For example, the method receives a signal to initiate a feeder tray adjustment routine, wherein the feeder tray adjustment routine determines an amount of lateral adjustment of the feeder tray to eliminate a lateral input error of a print media that is fed to a registration subsystem of the printing device, activates a mechanism to adjust a lateral position of the feeder tray by the amount that is determined, and feeds subsequent print media through the registration subsystem for printing an image on the subsequent print media.