Abstract: A system and method are provided to implement a double belt roll fuser geometry to enable consistent self-stripping of image receiving media exiting a fuser assembly in an image forming device. Interaction between an image receiving medium substrate and a fuser belt of a belt roll fuser device is modified to include configuration in which an opposing belt is positioned around a pressure roller to oppose the fuser belt provided around the fuser roller. The fuser belt and the opposing belt extend in a downstream direction from the fusing nip and are configured to provide an appropriate length downstream of the fusing nip that sandwiches the image receiving medium substrate between the fuser belt and the opposing belt. Each of the fuser belt and the opposing belt wrap 70 degrees or more around significantly smaller diameter rollers positioned downstream of the fusing nip to form a stripping nip.

Abstract: Methods include moving a fuser assembly with respect to a medium at a fusing nip. The fuser assembly may be moved back and forth, axially in a media cross process direction for registration distribution. The system may be configured to move the fuser assembly different distances based on a deduction of a current location of a fuser member in view of a known driving motor speed, and a time elapsed after a change in signal state. Systems may incorporate one or two sensors, and may be configured for axial movement over a distance of 2 mm or a distance of 55 mm. signature.

Abstract: A system and method are provided to implement a double belt roll fuser geometry to enable consistent self-stripping of image receiving media exiting a fuser assembly in an image forming device. Interaction between an image receiving medium substrate and a fuser belt of a belt roll fuser device is modified to include configuration in which an opposing belt is positioned around a pressure roller to oppose the fuser belt provided around the fuser roller. The fuser belt and the opposing belt extend in a downstream direction from the fusing nip and are configured to provide an appropriate length downstream of the fusing nip that sandwiches the image receiving medium substrate between the fuser belt and the opposing belt. Each of the fuser belt and the opposing belt wrap 70 degrees or more around significantly smaller diameter rollers positioned downstream of the fusing nip to form a stripping nip.

Abstract: An apparatus, system and method are provided for controlling a bulge radius of a pressure member in a belt-roll fuser. The belt-roll fuser has a first pressure member. The belt-roll fuser also has a fuser belt having a portion that faces a surface of the first pressure member at a region defining a fusing nip. The belt-roll fuser further has a second pressure member that faces another portion of the fuser belt at the fusing nip such that the fuser belt is entrained between the first pressure member and the second pressure member. The belt-roll fuser additionally has a deformation member configured to deform the first pressure member.

Abstract: A self-positioning belt roll fuser stripping apparatus and system includes an internal pressure roll entraining a fuser belt. The internal pressure engages an external pressure roll to form a fusing nip. The internal pressure roll includes an internal pressure roll bearing to which a mounting plate is attached, allowing the mounting plate to move about a rotational axis of the internal pressure roll. A strip bar is attached to the mounting plate, and configured to force the fuser belt toward the external pressure roll. A mounting plate ski is configured to contact an external pressure roll bearing to limit movement of the mounting plate, positioning the strip shoe as desired when the mounting plate is moved to guide the strip show toward the fusing nip.

Abstract: A belt-roll fuser system includes a belt-roll fuser apparatus wherein a belt is entrained about at least a first internal pressure roll and a second internal pressure roll. The first internal pressure roll and the second internal pressure roll are configured to force a belt against an external pressure roll at a fusing nip, the belt conforming to the external pressure roll across substantially a length of the fusing nip. A passive belt support may interpose internal pressure rolls for ensuring a consistent fusing pressure across the length of the nip. A pressure belt may interpose the fuser belt and the internal pressure rolls.

Abstract: An apparatus, system and method are provided for controlling a bulge radius of a pressure member in a belt-roll fuser. The belt-roll fuser has a first pressure member. The belt-roll fuser also has a fuser belt having a portion that faces a surface of the first pressure member at a region defining a fusing nip. The belt-roll fuser further has a second pressure member that faces another portion of the fuser belt at the fusing nip such that the fuser belt is entrained between the first pressure member and the second pressure member. The belt-roll fuser additionally has a deformation member configured to deform the first pressure member.

Abstract: Methods include moving a fuser assembly with respect to a medium at a fusing nip. The fuser assembly may be moved back and forth, axially in a media cross process direction for registration distribution. The system may be configured to move the fuser assembly different distances based on a deduction of a current location of a fuser member in view of a known driving motor speed, and a time elapsed after a change in signal state. Systems may incorporate one or two sensors, and may be configured for axial movement over a distance of 2 mm or a distance of 55 mm. signature.

Abstract: A belt-roll fuser system includes a belt-roll fuser apparatus wherein a belt is entrained about at least a first internal pressure roll and a second internal pressure roll. The first internal pressure roll and the second internal pressure roll are configured to force a belt against an external pressure roll at a fusing nip, the belt conforming to the external pressure roll across substantially a length of the fusing nip. A passive belt support may interpose internal pressure rolls for ensuring a consistent fusing pressure across the length of the nip. A pressure belt may interpose the fuser belt and the internal pressure rolls.

Abstract: An apparatus (100) and method (700) that controls fuser nip balance is disclosed. The apparatus can include a first fuser member (110) rotationally supported in the apparatus, a second fuser member (120) rotationally supported in the apparatus, and a rotatable cam mechanism (130) coupled to the second fuser member. The rotatable cam mechanism can be configured to provide variable pressure between the first fuser member and the second fuser member, The rotatable cam mechanism can include a cam rotational axis (135), a first cam end (131) at one end of the cam rotational axis, the first cam end including a first cam member (141) having a first cam profile perpendicular to the cam rotational axis, and a second cam end (132) at another end of the cam rotational axis, the second cam end including a second cam member (142) having a second cam profile perpendicular to the cam rotational axis, the second cam profile different from the first cam profile.

Abstract: An apparatus (100) and method (300) that adjusts a fuser nip width in an apparatus that can include a fuser member having a fuser nip configured to fuse an image on media is disclosed. The method can include feeding (320) a media sheet in a media sheet travel direction through the fuser nip. The method can also include sensing (330) a media sheet exit temperature of the media sheet after the media sheet exits the fuser nip. The method can also include adjusting (340) a fuser member nip width according to the sensed media sheet exit temperature, where the fuser nip width is substantially parallel to the media sheet travel direction.

Abstract: An apparatus (100) and method (700) that controls fuser nip balance is disclosed. The apparatus can include a first fuser member (110) rotationally supported in the apparatus, a second fuser member (120) rotationally supported in the apparatus, and a rotatable cam mechanism (130) coupled to the second fuser member. The rotatable cam mechanism can be configured to provide variable pressure between the first fuser member and the second fuser member, The rotatable cam mechanism can include a cam rotational axis (135), a first cam end (131) at one end of the cam rotational axis, the first cam end including a first cam member (141) having a first cam profile perpendicular to the cam rotational axis, and a second cam end (132) at another end of the cam rotational axis, the second cam end including a second cam member (142) having a second cam profile perpendicular to the cam rotational axis, the second cam profile different from the first cam profile.

Abstract: An apparatus (100) and method (300) that adjusts a fuser nip width in an apparatus that can include a fuser member having a fuser nip configured to fuse an image on media is disclosed. The method can include feeding (320) a media sheet in a media sheet travel direction through the fuser nip. The method can also include sensing (330) a media sheet exit temperature of the media sheet after the media sheet exits the fuser nip. The method can also include adjusting (340) a fuser member nip width according to the sensed media sheet exit temperature, where the fuser nip width is substantially parallel to the media sheet travel direction.