Carriage aligning apparatus for ink-jet printer and method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorJu-hyun Park
Life of this patent
Estimating the term…
Abstract
A carriage aligning apparatus in an ink-jet printer having a guide bar and a carriage disposed to slide along the guide bar to be across a paper transferring direction includes a spherical bearing rotatably connected to the carriage, a shaft hole formed eccentrically with respect to a center of an outer circumference of the spherical bearing to receive the guide bar, and a position deciding unit controlling a position of the spherical bearing with respect to the carriage and aligning the carriage with regard to the guide bar.
Claims38
A carriage aligning apparatus in an ink-jet, printer including a guide bar and a carriage disposed to slide along the guide bar crossing a paper transferring direction, comprising:
- a spherical bearing rotatably connected to the carriage, having a semi-spherical bearing surface at a side thereof which cooperates with a bearing connecting portion of the carriage, having a shaft hole formed eccentrically with respect to a common center of an outer circumference of the spherical bearing to rotatably receive the guide bar, and controlling the carriage to be aligned with the guide bar;
- and
- a position deciding member maintaining a position of the spherical bearing with respect to the carriage when the carriage is aligned with the guide bar in response to a movement of the spherical bearing.
A carriage aligning apparatus in an ink-jet printer including a guide bar and a carriage disposed to slide along the guide bar crossing a paper transferring direction, comprising:
- a spherical bearing rotatably connected to the carriage, having a shaft hole formed eccentrically with respect to a common center of an outer circumference of the spherical bearing to rotatably receive the guide bar, and controlling the carriage to be aligned with the guide bar;
- and
- a position deciding member maintaining a position of the spherical bearing with respect to the carriage when the carriage is aligned with the guide bar in response to a movement of the spherical bearing,
- wherein the position deciding member comprises:
- a plurality of position deciding grooves formed at a side of the spherical bearing at an equal interval on the basis of the common center of the outer circumference of the spherical bearing;
- and
- a flexible plate coupled to the carriage to flexibly push the spherical bearing toward the carriage, having position deciding protrusions flexibly inserted into and separated from corresponding ones of the position deciding grooves.
An apparatus in an ink-jet printer having a frame mounted with a mechanism transferring paper in a paper transferring direction, a guide bar fixedly mounted on the frame and disposed across the paper transferring direction, and a carriage mounted with a printing head and slidably coupled to the guide bar to move along the guide bar, comprising:
- a carriage aligning unit disposed between the guide bar and the carriage to control the carriage to move toward and away from the guide bar, the carriage aligning unit including:
- a spherical bearing rotatably connected to the carriage and having a semi-spherical bearing surface at a side thereof which cooperates with a bearing connecting portion of the carriage;
- and
- a position deciding member maintaining a position of the spherical bearing with respect to the carriage.
An apparatus in an ink-jet printer having a frame mounted with a mechanism transferring paper in a paper transferring direction, a guide bar fixedly mounted on the frame and disposed across the paper transferring direction, and a carriage mounted with a printing head and slidably coupled to the guide bar to move along the guide bar, comprising:
- a carriage aligning unit disposed between the guide bar and the carriage to control the carriage to move toward and away from the guide bar
- wherein the carriage aligning unit comprises:
- a spherical bearing rotatably connected to the carriage and having a shaft hole formed eccentrically with respect to a common axis of an outer circumference of the spherical bearing to receive the guide bar;
- and
- a position deciding member holding the spherical bearing with respect to the carriage, and
- wherein the carriage moves with respect to the guide bar by approximately 1 μm corresponding to a rotation of the spherical bearing by an interval between adjacent grooves.
An apparatus in an ink-jet printer having a frame mounted with a mechanism transferring paper in a paper transferring direction, a guide bar fixedly mounted on the frame and disposed across the paper transferring direction, and a carriage mounted with a printing head and slidably coupled to the guide bar to move along the guide bar, comprising:
- a carriage aligning unit disposed between the guide bar and the carriage to control the carriage to move toward and away from the guide bar;
- wherein the carriage aligning unit comprises:
- a spherical bearing rotatably connected to the carriage and having a shaft hole formed eccentrically with respect to a common axis of an outer circumference of the spherical bearing to receive the guide bar;
- and
- a position deciding member holding the spherical bearing with respect to the carriage, and
- wherein the position deciding member is a flexible plate and comprises a first end coupled to the carriage and a second end extended from the first end to be coupled to the one of the grooves.
An apparatus in an ink-jet printer having a frame mounted with a mechanism transferring paper in a paper transferring direction, a guide bar fixedly mounted on the frame and disposed across the paper transferring direction, and a carriage mounted with a printing head and slidably coupled to the guide bar to move along the guide bar, the apparatus comprising:
- a support formed on the carriage, having a common axis, a bearing connection portion, and a connection hole having the common axis and formed in the bearing connection portion to receive the guide bar;
- a bearing having a first side corresponding to the bearing connection portion, a second side, a shaft hole formed between the first side and the second side to communicate with the connection hole and having a shaft axis eccentric to the common axis by a predetermined distance to receive the guide bar, and a plurality of grooves formed on the second side around the common axis;
- and
- a position holding member detachably mounted on the carriage to be coupled to one of the grooves when the bearing is disposed within the bearing connection portion.
A method in an inkjet printer having a guide bar, a carriage moving along the guide bar, a bearing coupled between the guide bar and carriage to move the carriage with respect to the guide bar and having a semi-spherical bearing surface at a side thereof which cooperates with a bearing connecting portion of the carriage, and an eccentric hole formed in the bearing about a shaft axis eccentric to a common axis passing a center of the bearing to receive the guide bar disposed eccentric to the common axis, the method comprising:
- rotating the bearing about the common axis;
- and
- moving the carriage toward and away from the guide bar in response to a rotation of the bearing.
Dependencies are inferred from the claim text.