# US 12,005,719 B2 · Printing system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,005,719 B2 - Document ID: US12005719B2 - Status: Granted - Kind: B2 - Application number: 17/513,369 - Filed: 2021-10-28 - Published: 2023-05-04 - Granted: 2024-06-11 - Earliest claimed: 2021-10-28 - Assignees: Hewlett-Packard Development Company, L.P. - Applicants: Hewlett-Packard Development Company, L.P. - Inventors: Gemma Bolumar Barrera; Cintia Perez Gutierrez; Alfonso Cameno Salinas - Web page: https://patentgrep.com/patent/US12005719B2 ## CPC - B41J 19/00: Character- or line-spacing mechanisms - B41J 25/006: {for oscillating, e.g. page-width print heads provided with counter-balancing means or shock absorbers} - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS ## Abstract In certain examples, a printing system comprises: a carriage guide extending in a longitudinal direction; a printer carriage movable, in use, along the guide; and at least one bearing to direct motion of the carriage along the carriage guide. The at least one bearing is movable, relative to the carriage guide and laterally to the longitudinal direction, from a first carriage guide contact position to a second carriage guide contact position. ## Claims ### Claim 1 A printing system comprising: a carriage support; a carriage guide extending in a longitudinal direction, wherein the carriage guide is rotatable on the carriage support about an axis of the carriage guide; a carriage that is movable, in use, along the carriage guide; and at least one bearing to direct movement of the carriage along the carriage guide; wherein the at least one bearing is movable laterally to the longitudinal direction of the carriage guide, from a first carriage guide contact position to a second carriage guide contact position. ### Claim 2 (depends on 1) A printing system according to claim 1, wherein the carriage guide is rotatable on the carriage support to move the at least one bearing from the first carriage guide contact position to the second carriage guide contact position. ### Claim 3 (depends on 2) A printing system according to claim 2, wherein the at least one bearing is mounted on the carriage, and wherein the at least one bearing is moveable relative to the carriage to move the at least one bearing from the first carriage guide contact position to the second carriage guide contact position. ### Claim 4 (depends on 1) A printing system according to claim 1, wherein the at least one bearing is moveable around a profile of the carriage guide from the first carriage guide contact position to the second carriage guide contact position. ### Claim 5 (depends on 4) A printing system according to claim 4, wherein the carriage guide is substantially straight and has a substantially circular profile, and wherein the at least one bearing is movable in a circumferential direction of the carriage guide. ### Claim 6 (depends on 5) A printing system according to claim 5, wherein an angular distance between the first carriage guide contact position and the second carriage guide contact position is sufficient to separate worn portions of a surface of the carriage guide. ### Claim 7 (depends on 1) A printing system according to claim 1, wherein the at least one bearing is one of a pair of bearings retained in a bearing housing mountable to the carriage. ### Claim 8 (depends on 7) A printing system according to claim 7, wherein the bearing housing is relocatably mountable to the carriage in first and second mounting positions that respectively correspond to the first carriage guide contact position and the second carriage guide contact position. ### Claim 9 (depends on 4) A printing system according to claim 4, wherein the carriage guide is retained on the carriage support by one or more fasteners fixed into the carriage guide and rotatable with the carriage guide, and wherein the one or more fasteners are biased against the carriage support. ### Claim 10 (depends on 9) A printing system according to claim 9, wherein the printing system includes a longitudinally extending beam that comprises the carriage support, and wherein the longitudinally extending beam comprises one or more slots, each slot of the one or more slots is to receive and retain one of the one or more fasteners. ### Claim 11 (depends on 4) A printing system according to claim 4, wherein one end of the carriage guide is shaped to engage with a positioning tool, the positioning tool to exert a torque on, and cause rotation of, the carriage guide. ### Claim 12 A method comprising: relocating at least one bearing laterally around the profile of a longitudinally extending carriage guide from a first guide contact position to a second guide contact position, wherein the at least one bearing is to direct movement of a printer carriage that is movable along the carriage guide in a printing system; wherein relocating the at least one bearing comprises moving the carriage guide relative to a support structure on which the carriage guide is mounted. ### Claim 13 (depends on 12) The method of claim 12, wherein the at least one bearing is mounted to the printer carriage, and wherein relocating the at least one bearing comprises moving the at least one bearing relative to the printer carriage.