EP3332969B1 - Wiper mount for ink jet printer - Google Patents
Wiper mount for ink jet printer Download PDFInfo
- Publication number
- EP3332969B1 EP3332969B1 EP17205595.6A EP17205595A EP3332969B1 EP 3332969 B1 EP3332969 B1 EP 3332969B1 EP 17205595 A EP17205595 A EP 17205595A EP 3332969 B1 EP3332969 B1 EP 3332969B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wiper
- leaf spring
- parallel
- mount
- wiper mount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 241000638935 Senecio crassissimus Species 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
- B41J2/16538—Cleaning of print head nozzles using wiping constructions with brushes or wiper blades perpendicular to the nozzle plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
- B41J2/16544—Constructions for the positioning of wipers
Definitions
- the invention relates to a wiper mount structure in an ink jet printer, wherein a wiper mount is arranged to move along a nozzle plate of a print head of the printer in a longitudinal direction of the nozzle plate and comprises a holder for holding a wiper, and a spring assembly capable of elastically biasing the holder and the wiper against a nozzle face of the nozzle plate and capable of elastically yielding to a rotation of the wiper about an axis in parallel with the longitudinal direction.
- a print head of an ink jet printer has a nozzle plate formed with a plurality of nozzle orifices from which ink is to be jetted out in order to print an image. Since the nozzle face, i.e. the surface of the nozzle plate in which the nozzle orifices are formed, tends to become stained with residues of ink and other contaminants which may compromise the jetting behavior of the nozzles, it is common practice to provide a wiper which is moved over the nozzle face in longitudinal direction of the nozzle plate in order to clean the nozzle surface.
- US 2006098040 A1 discloses a wiper mount of the type indicated above, wherein a spring assembly is provided for biasing the holder and the wiper held therein against the nozzle face so that the wiper will engage the nozzle surface with a uniform and constant pressure.
- the known wiper mount is also capable of elastically yielding to a rotation of the wiper about the axis extending in the longitudinal direction, so that the wiper mount may follow the twist in the nozzle face and keep the edge of the wiper always in parallel with the nozzle face.
- US2005259126 A1 and US6000780 A are further examples disclosing wiper mounts with springs provided for biasing the holder and the wiper held therein against the nozzle face.
- the wiper is displaced in the transverse direction relative to the nozzle plate as the wiper mount moves in the longitudinal direction. Since the width of the wiper is larger than the width of the nozzle face so that the wiper may sweep over the entire width of the nozzle face, the edge of the wiper which comes into engagement with the nozzle surface projects over the nozzle plate at both sides. Since the wiper has certain resilience and is biased against the nozzle surface, the nozzle plate will dig into the edge of the wiper to a certain extent, with the result that the wiper cannot easily move in transverse direction relative to the nozzle plate. For this reason, a stick-slip effect may occur as the wiper moves over the nozzle surface, and the movement of the wiper over the nozzle surface becomes non-uniform and, consequently, a smooth and uniform cleaning operation can no longer be performed.
- the wiper mount according to the invention permits the wiper and its holder to move in the transverse direction with low resistance, so that the wiper may smoothly follow the edges of the nozzle plate even when the nozzle plate is askew relative to the direction of travel of the wiper mount.
- the stick-slip effect is avoided and the smoothness and uniformity of the cleaning operation is improved.
- the wiper mount is punched and canted from a single piece of sheet metal which, due to its own elasticity, constitutes also the spring assembly of the wiper mount.
- the spring assembly may comprise two parallel leaf spring portions projecting from a wiper carriage that is driven to move along the nozzle plate, the leaf spring portions extending in planes that are parallel to the longitudinal direction of the nozzle plate and normal to the nozzle face.
- the free ends of the leaf spring portions may carry the holder for the wiper, so that the holder and the leaf spring portions together form a parallelogram linkage permitting the wiper to move in the transverse direction while keeping its posture in the other degrees of freedom.
- Another leaf spring portion for biasing the holder and the wiper against the nozzle face and a torsion spring portion allowing the wiper to yield to rotations may be provided between the free ends of the two parallel leaf spring portions and the holder.
- a wiper mount 10 has a holder 12 arranged to hold a resilient, sheet-like wiper 14 which serves for cleaning a nozzle face 16 of a nozzle plate 18.
- the wiper 14 and the nozzle plate 18 have only been shown in phantom lines in Fig. 1A .
- the nozzle face 16 is on the bottom side of the nozzle plate 18 and is therefore not directly visible in Fig. 1A .
- the nozzle plate 18 is elongated in a longitudinal direction x and, accordingly, has a longitudinal axis A.
- the wiper mount 10 is secured to a wiper carriage 20 which is driven to move along a rail 22 extending along an axis B that should be parallel to the longitudinal axis A of the nozzle plate 18.
- the holder 12 is configured as an U-shaped clip forming, at its top edge, a nip 24 for clamping a lower portion of the wiper 14 which projects upwards towards the nozzle plate 18.
- a nip 24 for clamping a lower portion of the wiper 14 which projects upwards towards the nozzle plate 18.
- An upper edge 26 of the wiper is in smooth engagement with the nozzle face 16 on the entire width of the nozzle plate.
- One leg of the U-shaped holder 12 forms part of a vertical wall 28 that is bent at its top edge and merges into a V-shaped horizontal leaf spring portion 30 which elastically biases the holder 12 and the wiper 14 against the nozzle face 16 in a vertical direction z.
- the vertex of the V-shaped leaf spring portion 30 merges into a horizontal meandering torsion spring portion 32 which is bent at right angles from a vertical rear wall 34 of a base frame 36 of the wiper mount.
- the base frame 36 has the shape of a square box that is open at its top and bottom ends and has side walls constituted by vertical leaf spring portions 38.
- the leaf spring portions 38 have cut-outs 40 increasing the flexibility of the leaf springs.
- a front wall of the base frame 36 is constituted by two mounting tabs 42 which have elongated holes 44 for fastening screws (not shown) with which the wiper mount 10 can be secured at the wiper carriage 20 in an adjustable height.
- the vertical leaf spring portions 38 have their front ends fixed relative to the wiper carriage 20, whereas the free rear ends which are interconnected by the rear wall 34 can be deflected elastically in a transverse direction y in the plane of the nozzle face 16 and normal to the longitudinal direction x.
- the vertical leaf spring portions 38 and the rear wall 34 constitute a parallelogram linkage, so that the rear wall 34 as well as the torsion spring portion 32, the horizontal leaf spring portion 30 and the holder 12 do not change their posture but make a mere translational movement in the transverse direction y when the vertical leaf spring portions 38 are flexed, as has been indicated by phantom lines in Fig. 2 .
- Fig. 1B is a photograph showing a perspective view of a wiper mount structure according to the invention, in which the sheet-like wiper 14, the nozzle face 16, and the nozzle plate 18 are not present.
- Figure 1B shows the holder 12, which is configured as an U-shaped clip forming, at its top edge, a of the nip 24 for clamping a lower portion of the wiper 14 which projects upwards towards the nozzle plate 18.
- the wiper mount moves in the positive x-direction, friction between the wiper 14 and the nozzle plate 18 causes the wiper to bend in the fashion shown in Fig. 1A .
- one leg of the U-shaped holder 12 forms part of a vertical wall 28 that is bent at its top edge and merges into a V-shaped horizontal leaf spring portion 30, which elastically biases the holder 12 and the wiper 14 against the nozzle face 16 in a vertical direction z.
- Fig. 1B shows the base frame 36, which has the shape of a square box that is open at its top and bottom ends and has side walls constituted by vertical leaf spring portions 38.
- the leaf spring portions 38 have cut-outs 40 increasing the flexibility of the leaf springs.
- a front wall of the base frame 36 is constituted by two mounting tabs 42 which have elongated holes 44 for fastening screws (not shown) with which the wiper mount 10 can be secured at the wiper carriage 20 in an adjustable height.
- Fig. 1B also shows the vertical leaf spring portions 38 and the rear wall 34.
- the vertical leaf spring portions 38 and the rear wall 34 are linked to each other in such a way that they constitute a geometric parallelogram.
- This parallelogram configuration causes that the rear wall 34 as well as the torsion spring portion 32, the horizontal leaf spring portion 30 and the holder 12 do not change their posture but make a mere translational movement in the transverse direction y when the vertical leaf spring portions 38 are flexed, as is indicated by phantom lines in Fig. 2 .
- Fig. 3 shows the nozzle plate 18 and the vertical leaf spring portions 38 of the wiper mount 10 in a cross-sectional view. Since the wiper 14 is made of a resilient material, the nozzle plate 18 digs somewhat into the edge 26 of the wiper, so that a certain resistance opposes to a relative movement of the wiper 14 and a nozzle plate 18 in the transverse direction y.
- Fig. 4 is sectional view analogous to Fig. 3 , with the direction of sight being parallel to the axis B of the rail 22. It is assumed here that the longitudinal axis A of the nozzle plate 18 is not exactly parallel to the axis B but slightly slants in transverse direction, so that a side face 46 of the nozzle plate 18 becomes visible. As the wiper carriage 20 and the wiper mount 10 move in x-direction (longitudinal direction), the slanting nozzle plate 18 forces the wiper 14 to move in the transverse direction y.
- the holder 12, the horizontal leaf spring portion 28, the torsion spring portion 32 and the rear wall 34 of the base frame can take part in this lateral movement because the vertical leaf spring portions 38 can easily flex in the transverse direction, as shown in Fig. 4 .
- the nozzle plate 18 digs into the edge 26 of the wiper 14
- no substantial reaction forces occur between the nozzle plate 18 and the wiper 14 so that the wiper can move smoothly along the nozzle plate.
- Fig. 5 illustrates a case where the nozzle plate 18 is twisted about its longitudinal axis A, so that the wiper 14 rotates about the axis A as the wiper and the wiper mount moves in longitudinal direction.
- the torsion spring portion 32 of the wiper mount permits the holder 12 to follow this rotary movement, so that the edge 26 of the wiper is held in smooth engagement with the nozzle face 16 on the entire width of the nozzle plate.
- the entire wiper mount 10 can be formed by punching and canting a single piece of elastic sheet metal.
Description
- The invention relates to a wiper mount structure in an ink jet printer, wherein a wiper mount is arranged to move along a nozzle plate of a print head of the printer in a longitudinal direction of the nozzle plate and comprises a holder for holding a wiper, and a spring assembly capable of elastically biasing the holder and the wiper against a nozzle face of the nozzle plate and capable of elastically yielding to a rotation of the wiper about an axis in parallel with the longitudinal direction.
- A print head of an ink jet printer has a nozzle plate formed with a plurality of nozzle orifices from which ink is to be jetted out in order to print an image. Since the nozzle face, i.e. the surface of the nozzle plate in which the nozzle orifices are formed, tends to become stained with residues of ink and other contaminants which may compromise the jetting behavior of the nozzles, it is common practice to provide a wiper which is moved over the nozzle face in longitudinal direction of the nozzle plate in order to clean the nozzle surface.
-
US 2006098040 A1 discloses a wiper mount of the type indicated above, wherein a spring assembly is provided for biasing the holder and the wiper held therein against the nozzle face so that the wiper will engage the nozzle surface with a uniform and constant pressure. When the wiper is moved along the nozzle plate while an edge of the wiper is in engagement with a nozzle surface, even a minor twist of the nozzle face over the length of the nozzle plate would have the effect that the edge of the wiper is not always parallel to the nozzle face, so that the pressure with which the wiper is pressed against the nozzle plate varies over the width of the nozzle face and, consequently, the nozzle face cannot be cleaned properly. For this reason, the known wiper mount is also capable of elastically yielding to a rotation of the wiper about the axis extending in the longitudinal direction, so that the wiper mount may follow the twist in the nozzle face and keep the edge of the wiper always in parallel with the nozzle face.US2005259126 A1 andUS6000780 A are further examples disclosing wiper mounts with springs provided for biasing the holder and the wiper held therein against the nozzle face. - It is an object of the invention to provide a wiper mount which permits an improved performance of the wiper.
- In order to achieve this object, there is provided a wiper mount according to claim 1.
- In cases where a rail which guides the wiper mount during its movement along the nozzle plate is not exactly parallel to the longitudinal direction of the nozzle plate, the wiper is displaced in the transverse direction relative to the nozzle plate as the wiper mount moves in the longitudinal direction. Since the width of the wiper is larger than the width of the nozzle face so that the wiper may sweep over the entire width of the nozzle face, the edge of the wiper which comes into engagement with the nozzle surface projects over the nozzle plate at both sides. Since the wiper has certain resilience and is biased against the nozzle surface, the nozzle plate will dig into the edge of the wiper to a certain extent, with the result that the wiper cannot easily move in transverse direction relative to the nozzle plate. For this reason, a stick-slip effect may occur as the wiper moves over the nozzle surface, and the movement of the wiper over the nozzle surface becomes non-uniform and, consequently, a smooth and uniform cleaning operation can no longer be performed.
- However, the wiper mount according to the invention permits the wiper and its holder to move in the transverse direction with low resistance, so that the wiper may smoothly follow the edges of the nozzle plate even when the nozzle plate is askew relative to the direction of travel of the wiper mount. Thus, the stick-slip effect is avoided and the smoothness and uniformity of the cleaning operation is improved.
- More specific optional features of the invention are indicated in the dependent claims.
- In one embodiment, the wiper mount is punched and canted from a single piece of sheet metal which, due to its own elasticity, constitutes also the spring assembly of the wiper mount.
- The spring assembly may comprise two parallel leaf spring portions projecting from a wiper carriage that is driven to move along the nozzle plate, the leaf spring portions extending in planes that are parallel to the longitudinal direction of the nozzle plate and normal to the nozzle face. The free ends of the leaf spring portions may carry the holder for the wiper, so that the holder and the leaf spring portions together form a parallelogram linkage permitting the wiper to move in the transverse direction while keeping its posture in the other degrees of freedom.
- Another leaf spring portion for biasing the holder and the wiper against the nozzle face and a torsion spring portion allowing the wiper to yield to rotations may be provided between the free ends of the two parallel leaf spring portions and the holder.
- An embodiment example will now be described in conjunction with the drawings, wherein:
- Fig. 1A
- is a perspective view of a wiper mount structure according to the invention;
- Fig. 1B
- is a photograph of a wiper mount structure according to the invention;
- Fig. 2
- is a top plan view of the wiper mount;
- Fig. 3
- is a sectional view taken along the line III-III in
Fig. 2 and further shows a wiper as well as a cross-sectional view of a nozzle plate; - Fig. 4
- is a view analogous to
Fig. 3 and shows a deformation of the wiper mount in response to a transverse displacement of the wiper; and - Fig. 5
- is a view analogous to
Figs. 3 and4 and shows a deformation of the wiper mount in response to the rotation of the wiper. - As is shown in
Fig. 1A , awiper mount 10 has aholder 12 arranged to hold a resilient, sheet-like wiper 14 which serves for cleaning anozzle face 16 of anozzle plate 18. Thewiper 14 and thenozzle plate 18 have only been shown in phantom lines inFig. 1A . Thenozzle face 16 is on the bottom side of thenozzle plate 18 and is therefore not directly visible inFig. 1A . - The
nozzle plate 18 is elongated in a longitudinal direction x and, accordingly, has a longitudinal axis A. - The
wiper mount 10 is secured to awiper carriage 20 which is driven to move along arail 22 extending along an axis B that should be parallel to the longitudinal axis A of thenozzle plate 18. - The
holder 12 is configured as an U-shaped clip forming, at its top edge, anip 24 for clamping a lower portion of thewiper 14 which projects upwards towards thenozzle plate 18. As the wiper mount moves in the positive x-direction, friction between thewiper 14 and thenozzle plate 18 causes the wiper to bend in the fashion shown inFig. 1A . Anupper edge 26 of the wiper is in smooth engagement with thenozzle face 16 on the entire width of the nozzle plate. - One leg of the U-shaped
holder 12 forms part of avertical wall 28 that is bent at its top edge and merges into a V-shaped horizontalleaf spring portion 30 which elastically biases theholder 12 and thewiper 14 against thenozzle face 16 in a vertical direction z. - The vertex of the V-shaped
leaf spring portion 30 merges into a horizontal meanderingtorsion spring portion 32 which is bent at right angles from a verticalrear wall 34 of abase frame 36 of the wiper mount. Thebase frame 36 has the shape of a square box that is open at its top and bottom ends and has side walls constituted by verticalleaf spring portions 38. Theleaf spring portions 38 have cut-outs 40 increasing the flexibility of the leaf springs. A front wall of thebase frame 36 is constituted by twomounting tabs 42 which have elongatedholes 44 for fastening screws (not shown) with which thewiper mount 10 can be secured at thewiper carriage 20 in an adjustable height. - The vertical
leaf spring portions 38 have their front ends fixed relative to thewiper carriage 20, whereas the free rear ends which are interconnected by therear wall 34 can be deflected elastically in a transverse direction y in the plane of thenozzle face 16 and normal to the longitudinal direction x. The verticalleaf spring portions 38 and therear wall 34 constitute a parallelogram linkage, so that therear wall 34 as well as thetorsion spring portion 32, the horizontalleaf spring portion 30 and theholder 12 do not change their posture but make a mere translational movement in the transverse direction y when the verticalleaf spring portions 38 are flexed, as has been indicated by phantom lines inFig. 2 . -
Fig. 1B is a photograph showing a perspective view of a wiper mount structure according to the invention, in which the sheet-like wiper 14, thenozzle face 16, and thenozzle plate 18 are not present. -
Figure 1B shows theholder 12, which is configured as an U-shaped clip forming, at its top edge, a of thenip 24 for clamping a lower portion of thewiper 14 which projects upwards towards thenozzle plate 18. As the wiper mount moves in the positive x-direction, friction between thewiper 14 and thenozzle plate 18 causes the wiper to bend in the fashion shown inFig. 1A . - It can also be observed in
Fig. 1B that one leg of the U-shapedholder 12 forms part of avertical wall 28 that is bent at its top edge and merges into a V-shaped horizontalleaf spring portion 30, which elastically biases theholder 12 and thewiper 14 against thenozzle face 16 in a vertical direction z. -
Fig. 1B shows thebase frame 36, which has the shape of a square box that is open at its top and bottom ends and has side walls constituted by verticalleaf spring portions 38. Theleaf spring portions 38 have cut-outs 40 increasing the flexibility of the leaf springs. A front wall of thebase frame 36 is constituted by twomounting tabs 42 which have elongatedholes 44 for fastening screws (not shown) with which thewiper mount 10 can be secured at thewiper carriage 20 in an adjustable height. - It can also be observed in
Fig. 1B that the verticalleaf spring portions 38 have their front ends fixed relative to thewiper carriage 20, whereas the free rear ends which are interconnected by therear wall 34 can be deflected elastically in a transverse direction y in the plane of thenozzle face 16 and normal to the longitudinal direction x. -
Fig. 1B also shows the verticalleaf spring portions 38 and therear wall 34. Particularly, it can be observed that the verticalleaf spring portions 38 and therear wall 34 are linked to each other in such a way that they constitute a geometric parallelogram. This parallelogram configuration causes that therear wall 34 as well as thetorsion spring portion 32, the horizontalleaf spring portion 30 and theholder 12 do not change their posture but make a mere translational movement in the transverse direction y when the verticalleaf spring portions 38 are flexed, as is indicated by phantom lines inFig. 2 . -
Fig. 3 shows thenozzle plate 18 and the verticalleaf spring portions 38 of thewiper mount 10 in a cross-sectional view. Since thewiper 14 is made of a resilient material, thenozzle plate 18 digs somewhat into theedge 26 of the wiper, so that a certain resistance opposes to a relative movement of thewiper 14 and anozzle plate 18 in the transverse direction y. -
Fig. 4 is sectional view analogous toFig. 3 , with the direction of sight being parallel to the axis B of therail 22. It is assumed here that the longitudinal axis A of thenozzle plate 18 is not exactly parallel to the axis B but slightly slants in transverse direction, so that aside face 46 of thenozzle plate 18 becomes visible. As thewiper carriage 20 and thewiper mount 10 move in x-direction (longitudinal direction), the slantingnozzle plate 18 forces thewiper 14 to move in the transverse direction y. Theholder 12, the horizontalleaf spring portion 28, thetorsion spring portion 32 and therear wall 34 of the base frame can take part in this lateral movement because the verticalleaf spring portions 38 can easily flex in the transverse direction, as shown inFig. 4 . As a consequence, even though thenozzle plate 18 digs into theedge 26 of thewiper 14, no substantial reaction forces occur between thenozzle plate 18 and thewiper 14 so that the wiper can move smoothly along the nozzle plate. -
Fig. 5 illustrates a case where thenozzle plate 18 is twisted about its longitudinal axis A, so that thewiper 14 rotates about the axis A as the wiper and the wiper mount moves in longitudinal direction. Thetorsion spring portion 32 of the wiper mount permits theholder 12 to follow this rotary movement, so that theedge 26 of the wiper is held in smooth engagement with thenozzle face 16 on the entire width of the nozzle plate. - As can be seen in
Fig. 1A , theentire wiper mount 10 can be formed by punching and canting a single piece of elastic sheet metal.
Claims (7)
- A wiper mount for use in a wiper mount structure of an ink jet printer, wherein the wiper mount (10) is arranged to move along a nozzle plate (18) comprising a nozzle face (16) of a print head of the printer in a longitudinal direction (x) of the nozzle plate and comprises a holder (12) for holding a wiper (14), and a spring assembly (30, 32, 38) capable of elastically biasing the holder (12) and the wiper (14) against the nozzle face (16) of the nozzle plate (18) and capable of elastically yielding to a rotation of the wiper (14) about an axis (A) in parallel with the longitudinal direction (x), characterized in that the wiper mount (10) comprises a rear wall (34) and in that the spring assembly (30, 32, 38) comprises vertical leaf spring portions (38), the vertical leaf spring portions (38) and the rear wall (34) constitute a parallelogram linkage, and the spring assembly (30, 32, 38) is arranged to elastically yield to a displacement of the wiper (14) in a transverse direction (y) in parallel with the nozzle face (16) and also to a displacement of the wiper (14) normal to the longitudinal direction (x)
- The wiper mount according to claim 1, wherein the holder (12) and the spring assembly (30, 32, 38) are formed by a single piece of elastic sheet metal.
- The wiper mount according to claim 1 or 2 comprising a mounting portion (42) adapted for securing the wiper mount (10) to a wiper carriage (20) that is movable along the nozzle plate (18) in the longitudinal direction (x), wherein the spring assembly comprises two parallel leaf spring portions (38) having each one end connected to the mounting portion (42), the opposite ends of the leaf spring portions (38) being connected to one another to form a parallelogram linkage and carrying the holder (12).
- The wiper mount according to claim 3, wherein the holder (12) is connected to the parallelogram linkage via another leaf spring portion (30) that extends in parallel with the nozzle face (16), and via a torsion spring portion (32) capable of torsional deformation about an axis in parallel with the longitudinal direction (x).
- The wiper mount according to claim 3 or 4, wherein the mounting portion (42), the two parallel leaf spring portions (38) and the rear wall (34) connecting the same constitute a tubular base frame (36) which has a rectangular cross-section.
- The wiper mount according to claim 4 or 5, wherein the torsion spring portion (32) is formed by a meander-shaped portion of sheet metal adjoining to and in parallel with said leaf spring portion (30) that extends in parallel with the nozzle face (26).
- A wiper mount structure comprising a wiper mount (10) according to any of the preceding claims, the wiper mount structure further comprising a wiper carriage (20) to which the wiper mount (10) is secured via mounting portion (42), the wiper carriage (20) is driven to move along a rail (22) extending along an axis B.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16203548 | 2016-12-12 |
Publications (2)
Publication Number | Publication Date |
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EP3332969A1 EP3332969A1 (en) | 2018-06-13 |
EP3332969B1 true EP3332969B1 (en) | 2022-03-30 |
Family
ID=57542907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17205595.6A Active EP3332969B1 (en) | 2016-12-12 | 2017-12-06 | Wiper mount for ink jet printer |
Country Status (1)
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EP (1) | EP3332969B1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6000780A (en) * | 1994-04-08 | 1999-12-14 | Hewlett-Packard Company | Wiping system for inkjet printer |
US7703880B2 (en) * | 2004-05-18 | 2010-04-27 | Canon Kabushiki Kaisha | Inkjet recording apparatus |
KR100644646B1 (en) | 2004-11-09 | 2006-11-15 | 삼성전자주식회사 | Inkjet image forming apparatus |
TW200946357A (en) * | 2008-05-13 | 2009-11-16 | Kinpo Elect Inc | A device for cleaning out residual ink |
-
2017
- 2017-12-06 EP EP17205595.6A patent/EP3332969B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
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EP3332969A1 (en) | 2018-06-13 |
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