# US 2010/0166469 A1 · System and Drive Arrangement for Using Fuser Temperature Cycling to Change Rotational Position of a Fuser Roller Wiper > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0166469 A1 - Document ID: US20100166469A1 - Status: Published application - Kind: A1 - Application number: 12/346,229 - Filed: 2008-12-30 - Published: 2010-07-01 - Earliest claimed: 2008-12-30 - Assignees: Lexmark International, Inc. - Inventors: Daniel Paul Cahill; Thomas Paul Maddox; Chad Michael Piening; Louann Behymer Samuels; Curtis Duane Woodson - Web page: https://patentgrep.com/patent/US20100166469A1 ## CPC - G03G 15/2025: {with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid} - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY ## Abstract A system and drive arrangement for using fuser temperature cycling to change rotational position of a fuser roller wiper includes a frame, a hot roll, a fuser roller, and a drive arrangement. The frame of the fuser unit has side panels spaced apart from one another and positioned alongside a media path through the fuser unit. The hot roll on the fuser unit is rotatably mounted to the side panels of the frame and extends between the side panels across the media path. The fuser roller wiper is rotatably mounted between the side panels of the frame and performs a wiping action on the hot roll to remove foreign matter therefrom and supply of lubricant thereto. The drive arrangement is coupled to the fuser roller wiper and is operable in response to decrease in temperature of the fuser unit to rotate the fuser roller wiper. ## Claims ### Claim 1 A system for using fuser temperature cycling to change the rotational position of a fuser roller wiper relative to a fuser hot roll, comprising: a frame of a fuser unit having opposite side portions spaced apart from one another and positioned alongside a media path through the fuser unit, the fuser unit during normal operation undergoing increase and decrease in temperature; a hot roll rotatably mounted between the side portions and extending across the media path, the hot roll operable to undergo rotation in one direction during a fusing operation performed on media moving in the media path through the fuser unit, a fuser roller wiper rotatably mounted between the side portions and extending generally parallel to the hot roll such that one lengthwise section of the fuser roller wiper makes contact with and performs a wiping action on the hot roll; and a drive arrangement coupled to the fuser roller wiper and operable in response to decrease in temperature of the fuser unit to cause rotation of the fuser roller wiper in an other direction opposite to the one direction of rotation of the hot roll at their location of contact in order to bring another lengthwise section of the fuser roller wiper into contact with the hot roll. ### Claim 2 (depends on 1) The system of claim 1 wherein said drive arrangement includes a one-way torque transmission mechanism drivingly connected to a fuser roller wiper of a fuser unit and being rotatable in one and the other of opposite directions, the one-way torque transmission mechanism is capable of drivingly rotating the fuser roller wiper in the other direction as the one-way torque transmission mechanism is itself rotated in the same direction, the one-way torque transmission is also capable upon rotating in the one direction of preventing the fuser roller wiper from rotating in the one direction. ### Claim 3 (depends on 2) The system of claim 2 wherein the one-way torque transmission mechanism is a one-way clutch. ### Claim 4 (depends on 2) The system of claim 2 wherein said drive arrangement also includes an elongated member adapted to expand and contract in length in response to an increase and decrease in temperature of the elongated member due to corresponding temperature cycling of the fuser unit in the vicinity of the elongated member, the elongated member stationarily anchored at one end and extending therefrom in the vicinity of the fuser unit to and about the one-way torque transmission mechanism in a driving relationship therewith such that movement of the elongated member toward and away from the one-way torque transmission mechanism due to expansion and contraction of the length of the elongated member causes the one-way torque transmission mechanism to rotate correspondingly in the one and the other opposite directions. ### Claim 5 (depends on 4) The system of claim 4 wherein the elongated member is an elongated strand of wire. ### Claim 6 (depends on 5) The system of claim 5 wherein the elongated strand of wire is a strand of stainless steel wire. ### Claim 7 (depends on 5) The system of claim 5 wherein the elongated strand of wire is a strand of plastic material. ### Claim 8 (depends on 4) The system of claim 4 wherein said drive arrangement further includes a stretchable and retractable member stationarily anchored at one end and attached at an opposite end to the other end of the elongated member such that the stretchable and retractable member stretches in response to contraction of the elongated member in length causing the one-way torque transmission mechanism to rotate in the other direction and rotate the fuser roller wiper therewith and the stretchable and retractable member retracts in response to expansion of the elongated member in length causing the one-way clutch to rotate in the one direction and prevent rotation of the fuser roller wiper therewith. ### Claim 9 (depends on 8) The system of claim 8 wherein the stretchable and retractable member is a spring. ### Claim 10 (depends on 9) The system of claim 9 wherein the spring is a coil spring. ### Claim 11 A drive arrangement for using temperature cycling of a machine to change the rotational position of a rotatable member of the machine, comprising: a one-way torque transmission mechanism drivingly connected to a rotatable member of a machine and being rotatable in one and the other of opposite directions, the one-way torque transmission mechanism capable of drivingly rotating the rotatable member in the one direction as the one-way torque transmission is itself rotated in the same one direction, the one-way torque transmission mechanism also capable upon rotating in the other direction of preventing the rotatable member from rotating in the other direction; an elongated member adapted to expand and contract in length in response to an increase and decrease in temperature of the elongated member due to corresponding temperature cycling of the machine in the vicinity of the elongated member, the elongated member stationarily anchored at one end and extending therefrom in the vicinity of the machine to and about the one-way torque transmission mechanism in a driving relationship therewith such that movement of the elongated member toward and away from the one-way torque transmission mechanism due to expansion and contraction of the length of the elongated member causes the one-way torque transmission mechanism to rotate correspondingly in the one and other opposite directions; and. a stretchable and retractable member stationarily anchored at one end and attached at an opposite end to the other end of the elongated member such that the stretchable and retractable member stretches in response to the contraction of the elongated member in length causing the one-way torque transmission mechanism to rotate in the one direction and rotate the rotatable member therewith and the stretchable and retractable member retracts in response to expansion of the elongated member in length causing the one-way torque transmission mechanism to rotate in the other direction and prevent rotation of the rotatable member therewith. ### Claim 12 (depends on 11) The system of claim 11 wherein the one-way torque transmission mechanism is a one-way clutch. ### Claim 13 (depends on 11) The system of claim 11 wherein the elongated member is an elongated strand of wire. ### Claim 14 (depends on 11) The system of claim 11 wherein the stretchable and retractable member is a spring. ### Claim 15 (depends on 11) The system of claim 11 wherein the spring is a coil spring. ### Claim 16 A drive arrangement for using temperature cycling of a fuser unit to change the rotational position of a fuser roller wiper of the fuser unit, comprising: a one-way torque transmission mechanism drivingly connected to a fuser roller wiper of a fuser unit and being rotatable in one and the other of opposite directions, the one-way torque transmission mechanism capable of drivingly rotating the fuser roller wiper in the one direction as the one-way torque transmission mechanism is itself rotated in the same one direction, the one-way torque transmission also capable upon rotating in the other direction of preventing the fuser roller wiper from rotating in the other direction; an elongated member adapted to expand and contract in length in response to increase and decrease in temperature of the elongated member due to corresponding temperature cycling of the fuser unit in the vicinity of the elongated member, the elongated member stationarily anchored at one end and extending therefrom in the vicinity of the fuser unit to and about the one-way torque transmission mechanism in a driving relationship therewith such that movement of the elongated member toward and away from the one-way torque transmission mechanism due to expansion and contraction of the length of the elongated member causes the one-way torque transmission mechanism to rotate correspondingly in the one and the other opposite directions; and, a stretchable and retractable member stationarily anchored at one end and attached at an opposite end to the other end of the elongated member such that the stretchable and retractable member stretches in response to contraction of the elongated member in length causing the one-way torque transmission mechanism to rotate in the one direction and rotate the fuser roller wiper therewith and the stretchable and retractable member retracts in response to expansion of the elongated member in length causing the one-way torque transmission mechanism to rotate in the other direction and prevent rotation of the fuser roller wiper therewith. ### Claim 17 (depends on 16) The system of claim 16 wherein the one-way torque transmission mechanism is a one-way clutch. ### Claim 18 (depends on 16) The system of claim 16 wherein the elongated member is an elongated strand of wire. ### Claim 19 (depends on 18) The system of claim 18 wherein the strand of wire is one of a strand of stainless steel wire or a strand of plastic material. ### Claim 20 (depends on 16) The system of claim 16 wherein the stretchable and retractable member is a spring.