# US 2021/0240127 A1 · Structure for protruding handle to release developer cartridge > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0240127 A1 - Document ID: US20210240127A1 - Status: Published application - Kind: A1 - Application number: 17/050,600 - Filed: 2018-10-15 - Published: 2021-08-05 - Earliest claimed: 2018-05-28 - Assignees: Hewlett-Packard Development Company, L.P. - Applicants: Hewlett-Packard Development Company, L.P. - Inventors: Jin Sam PARK; Jin Hong KIM; Seong Woong YANG; Min Woo KANG; Yong Hun KIM; Jeong Sup SIM - Web page: https://patentgrep.com/patent/US20210240127A1 ## CPC - G03G 21/1623: {Means to access the interior of the apparatus} - G03G 21/1676: {for the developer unit} - G03G 21/1846: {using a handle for carrying or pulling out of the main machine, legs of casings} - G03G 2221/1654: Locks and means for positioning or alignment - G03G 2221/1846: using a handle for carrying or pulling out of the main machine - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY ## Abstract A printer includes a main body including a printing unit for printing an image, a developer cartridge for accommodating a developer to be supplied to the printing unit and removable from the main body, a releasing member provided in the main body and pushing the developer cartridge in a removal direction to move the developer cartridge from a mounting position where the developer cartridge is locked to the main body to a removal position where the developer cartridge is unlocked, and a handle provided on the developer cartridge. The handle moves in conjunction with the movement of the developer cartridge from the mounting position to the removal position of the developer cartridge such that the handle is switched from a first position adjacent to a side of the developer cartridge to a second position protruding from the side of the developer cartridge, so that the handle can be gripped. ## Claims ### Claim 1 A printer, comprising: a main body including a printing unit to print an image on a printing medium and including an interior space to accommodate a removable developer cartridge that includes a developer to be supplied to the printing unit; a releasing member, provided in a rear portion of the interior space of the main body, that when the developer cartridge is installed in the main body and is to be removed from the main body, is to rotate so as to move the developer cartridge in a removal direction to remove the developer cartridge from the main body; and a latching portion, provided in a front portion of the interior space of the main body, that when the developer cartridge is installed in the main body is latched to a portion of the developer cartridge so that a handle of the developer cartridge is maintained in a first position, and when the developer cartridge is removed from the main body the latching portion is unlatched from the portion of the developer cartridge so that the handle is concurrently moved to a second position to protrude from the developer cartridge. ### Claim 2 (depends on 1) The printer of claim 1, wherein the developer cartridge includes: a rocker arm provided on the developer cartridge to switch between a third position at which the rocker arm holds the developer cartridge at a mounting position where the developer cartridge is locked to the main body and holds the handle at the first position, and a fourth position at which the rocker arm allows the developer cartridge to move to a removal position where the developer cartridge is unlocked from the main body and allows the handle to be switched to the second position; a first elastic member to apply an elastic force to the rocker arm in a direction so that the rocker arm is held in the third position; and a second elastic member to apply an elastic force to the handle in a direction to switch the handle to the second position. ### Claim 3 (depends on 2) The printer of claim 2, wherein the rocker arm is switched from the third position to the fourth position by the movement of the developer cartridge to the removal position. ### Claim 4 (depends on 3) The printer of claim 3, wherein the rocker arm has a first locking portion and a second locking portion, the portion of the developer cartridge corresponds to the first locking portion and the latching portion is to latch to the first locking portion when the rocker arm is located at the third position, and the handle is provided with a handle latching portion to latch the second locking portion when the rocker arm is located at the third position. ### Claim 5 (depends on 4) The printer of claim 4, wherein the rocker arm includes an intermediate position between the third position and the fourth position, where the latching of the first locking portion and the latching portion is maintained and the latching of the second locking portion and the handle latching portion is released. ### Claim 6 (depends on 5) The printer of claim 5, wherein a first latching distance between the first locking portion and the latching portion is greater than a second latching distance between the second locking portion and the handle latching portion. ### Claim 7 (depends on 1) The printer of claim 1, wherein the handle includes a locking portion, and the portion of the developer cartridge corresponds to the locking portion and the locking portion is latched to the latching portion when the handle is at the first position to lock the developer cartridge to a mounting position where the developer cartridge is locked to the main body and the locking portion is released from the latching portion when the handle is at the second position. ### Claim 8 (depends on 7) The printer of claim 7, wherein the developer cartridge includes an elastic member to apply an elastic force to the handle in a direction to switch the handle to the first position. ### Claim 9 (depends on 8) The printer of claim 8, wherein the main body includes an interference portion to interfere with the locking portion to hold the handle in the second position when the developer cartridge moves from the mounting position to a removal position where the developer cartridge is unlocked from the main body. ### Claim 10 A developer cartridge which is installable in a printer, the developer cartridge comprising: a body having a rear side and a front side; a handle, provided on the front side of the body, movable between a first position at which the handle is adjacent to the front side of the body to a second position at which the handle protrudes from the front side of the body; and a rocker arm provided in the developer cartridge to move from a third position, at which the developer cartridge is locked to a main body of the printer when the developer cartridge is installed in the main body, to a fourth position, at which the developer cartridge is unlocked from the main body when the developer cartridge is removed from the main body by a force applied to the rear side of the body in a rear to front direction of the body, wherein the handle is to move from the first position to the second position when the rocker arm moves from the third position to the fourth position. ### Claim 11 (depends on 10) The developer cartridge of claim 10, further comprising: a first elastic member to apply an elastic force to the rocker arm in a direction so that the rocker arm is held in the third position; and a second elastic member to apply an elastic force to the handle in a direction to switch the handle to the second position, wherein the rocker arm has a first locking portion and a second locking portion, the main body of the printer is provided with a first latching portion to latch the first locking portion when the rocker arm is located at the third position, and the developer cartridge is provided with a second latching portion to latch the second locking portion when the rocker arm is located at the third position. ### Claim 12 (depends on 11) The developer cartridge of claim 11, wherein a first latching distance between the first locking portion and the first latching portion is greater than a second latching distance between the second locking portion and the second latching portion. ### Claim 13 (depends on 10) The developer cartridge of claim 10, wherein the rocker arm and the handle are integrally formed, and the developer cartridge further comprises: an elastic member to apply an elastic force to the handle in a direction to switch the handle to the first position. ### Claim 14 (depends on 13) The developer cartridge of claim 13, wherein the main body of the printer includes an interference portion to interfere with the rocker arm to hold the handle in the second position when the developer cartridge is moved from a mounting position where the developer cartridge is locked to the main body to a removal position where the developer cartridge is unlocked from the main body. ### Claim 15 (depends on 11) The developer cartridge of claim 11, wherein the force applied to the rear side of the body of the developer cartridge is applied by a releasing member provided in the main body of the printer to push the developer cartridge in a removal direction to switch the rocker arm from the third position to the fourth position.