Recording head, recording head adjusting system, and recording head adjusting method

Patent metadata

Field	Value
Publication number	US-9724944-B2
Application number	US-201615348339-A
Country	US
Kind code	B2
Filing date	Nov 10, 2016
Priority date	Jun 23, 2014
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

The present invention provides a recording head, a recording head adjusting system, and a recording head adjusting method. A recording head includes: a head module having a recording surface; a support member that supports the head module; a first direction position adjusting unit that adjusts the first-direction position of the head module; a rotation direction adjusting unit that adjusts the angular deviation of the rotation direction; and a position detection unit that detects the first-direction position of the head module that is used when performing adjustment by the first direction position adjusting unit and the rotation direction adjusting unit. The rotation direction adjusting unit includes a rotation support mechanism for rotatably supporting the head module within the plane parallel to the recording surface and a second direction moving mechanism for moving the adjustment position of the head module in a second direction perpendicular to the first direction.

First claim

What is claimed is:

1. A recording head, comprising:
a head module having a recording surface on which recording elements are arranged;
a support member that supports the head module;
a first direction position adjusting unit that adjusts a first-direction position of the head module with respect to the support member;
a rotation direction adjusting unit that adjusts angular deviation of a rotation direction within a plane parallel to the recording surface of the head module with respect to the support member; and
a position detection unit that detects the first-direction position of the head module with respect to the support member, which is used when performing adjustment by the first direction position adjusting unit and adjustment by the rotation direction adjusting unit,
wherein the rotation direction adjusting unit includes a rotation support mechanism, through which a rotation axis of the head module passes along a direction perpendicular to the recording surface and which rotatably supports the head module within the plane parallel to the recording surface, and a second direction moving mechanism that moves an adjustment position of the head module, which is spaced apart from the rotation support mechanism to the first direction, to a second direction perpendicular to the first direction.

2. The recording head according to claim 1 ,
wherein the rotation support mechanism is disposed at one end of the head module in the second direction that is one end of the head module in the first direction and,
the second direction moving mechanism is disposed at the one end of the head module in the second direction that is the other end of the head module in the first direction, and
the position detection unit comprises a sensor and a detection piece detected by the sensor, and either the sensor or the detection piece is disposed at the other end of the head module in the second direction that is the one end of the head module in the first direction.

3. The recording head according to claim 2 ,
wherein the head module includes a head unit having a recording surface on which recording elements are arranged, and an attachment unit to which the head unit is attached,
the attachment unit includes a vertical portion that has a length exceeding a total length of the head unit in the first direction, has protruding portions that protrude to both sides of the head unit, and is provided at the one end of the head module in the second direction so as to be perpendicular to the plane parallel to the recording surface, and
in the vertical portion, the rotation support mechanism is provided in one of the protruding portions that protrude to both sides of the head unit in the first direction, and the second direction moving mechanism is provided in the other protruding portion.

4. The recording head according to claim 3 ,
wherein the attachment unit includes a horizontal portion that supports a periphery of a surface of the head unit on an opposite side of the recording surface from the opposite side of the recording surface and that has a structure in which the vertical portion is bonded to the one end in the second direction, and
the horizontal portion is at a position corresponding to a position of the rotation support mechanism in the first direction, and either the sensor or the detection piece is disposed at the other end in the second direction.

5. The recording head according to claim 4 ,
wherein the recording head has a structure in which a plurality of the head modules are arranged side by side in the first direction.

6. The recording head according to claim 2 ,
wherein the recording head has a structure in which a plurality of the head modules are arranged side by side in the first direction.

7. The recording head according to claim 3 ,
wherein the recording head has a structure in which a plurality of the head modules are arranged side by side in the first direction.

8. The recording head according to claim 1 ,
wherein the recording head has a structure in which a plurality of the head modules are arranged side by side in the first direction.

9. The recording head according to claim 1 ,
wherein the recording head includes only one of the head module having a structure in which a longitudinal direction is parallel to the first direction.

10. A recording head adjusting method of adjusting the recording head according to claim 1 in which a head module having a recording surface on which recording elements are arranged is supported by a support member, the recording head adjusting method comprising:
a first direction position adjusting step of adjusting a first-direction position of the head module with respect to the support member;
a rotation direction adjusting step of adjusting angular deviation of a rotation direction within a plane parallel to the recording surface of the head module with respect to the support member; and
a detection step of detecting the first-direction position of the head module with respect to the support member, which is used in the first direction position adjusting step and the rotation direction adjusting step,
wherein, in the rotation direction adjusting step, an adjustment position of the head module spaced apart to the first direction from a rotation support mechanism, through which a rotation axis of the head module passes along a direction perpendicular to the recording surface and which rotatably supports the head module within the plane parallel to the recording surface, is moved to a second direction perpendicular to the first direction.

11. The recording head adjusting method according to claim 10 , further comprising:
a determination step of determining whether or not the adjustment of the angular deviation of the rotation direction within the plane parallel to the recording surface of the head module with respect to the support member has been performed appropriately in the rotation direction adjusting step, based on the first-direction position of the head module detected in the detection step.

12. The recording head adjusting method according to claim 11 ,
wherein, in the determination step, as a reference for determining whether or not the adjustment of the angular deviation of the rotation direction within the plane parallel to the recording surface of the head module with respect to the support member has been performed appropriately in the rotation direction adjusting step, a value obtained by multiplying a distance in the second direction from the rotation support mechanism to a first direction detection position of the head module by an adjustment value in the second direction and dividing the value obtained by the multiplication by a first-direction total length of a recording element arrangement region where the recording elements of the head module are arranged is used.

13. A recording head adjusting system comprising the recording head according to claim 1 , further comprising:
a recording head which has a structure in which a head module having a recording surface on which recording elements are arranged is supported by a support member, which includes a first direction position adjusting unit that adjusts a first-direction position of the head module with respect to the support member, a rotation direction adjusting unit that adjusts angular deviation of a rotation direction of the head module within a plane parallel to the recording surface, and a position detection unit that detects the first-direction position of the head module with respect to the support member, which is used when performing adjustment by the first direction position adjusting unit and adjustment by the ro

Assignees

• Fujifilm Corp

Inventors

• Takada Norihisa

Classifications

• B41J2/2146

  for line print heads · CPC title

• B41J2/45

  using light-emitting diode {[LED] or laser} arrays · CPC title

• B41J25/001 Primary

  Mechanisms for bodily moving print heads or carriages parallel to the paper surface · CPC title

• B41J25/304

  Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface · CPC title

• B41J25/003

  for changing the angle between a print element array axis and the printing line, e.g. for dot density changes · CPC title