JP3050031B2 - Recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for performing recording on recording paper placed between a platen roller and a recording head.

[0002]

2. Description of the Related Art Some recording apparatuses perform recording with a recording head while conveying recording paper by rollers. FIG. 6 shows a recording apparatus according to the related art. Case 2 of recording device 10
A roll housing portion 22 for housing the recording paper roll 90 is formed at substantially the center of the recording paper roll 0. In this recording apparatus, the replacement of the recording paper roll 90 is performed by using the cover 28 as shown in FIG.
It is designed to be pulled up mainly. Recording paper 92
A recording head 80 that performs recording on the recording medium is held by a holding member 75 attached to the lid 28 side via a spring 72, and is configured to separate from the platen roller 60 when the lid 28 is opened. I have. Therefore, when the recording paper roll 90 is replaced, the leading end of the recording paper 92 is pulled out to almost the upper part of the platen roller 60, so that when the lid 28 is closed, the recording head 80 and the platen roller 60 are removed. The recording paper 92 is sandwiched between the recording paper roll 9 and the recording paper 92.
Derived from zero. The holding member 75 of the recording head 80 is configured to position the recording head 80 with respect to the platen roller 60 in a state where the cover 28 is closed.

The positioning of the recording head 80 with respect to the platen roller 60 by the holding member 75 will be described with reference to FIG. FIG. 7 shows a state in which the recording paper 92 is not sent for the sake of clarity. Recording device 10
A shaft 62 of a platen roller 60 is supported on a bearing 15 fixed to a bearing portion 25 formed on the housing 20 of the housing 20, and the platen roller 60 is rotated by a motor (not shown) in the direction of the arrow in the figure. The holding member 7 is pressed onto the upper surface of the platen roller 60 by the urging force of a spring 72 (shown in FIG. 6).
The recording head 80 held at 5 is pressed. The holding member 75 is made of a plate-like member, and has a claw portion 75a formed at a longitudinal end thereof at right angles to the plate surface, and a notch portion 75b is further provided at the center of the claw portion 75a. When the lid 28 is closed, the holding member 75 is held by the platen roller 6 at the center notch 75b of the claw 75a.
The recording head 80 is positioned with respect to the platen roller 60 by sandwiching the shaft 62 of zero.
When the is opened, the notch 75b is separated from the shaft 62 of the platen roller 60.

[0004]

SUMMARY OF THE INVENTION The holding member 75 described above.
The steel plate is punched into a predetermined shape, and then, as shown in FIG. 8, both ends are bent by 90 degrees by press working to form a claw portion 75a. Then, the recording head 8 is placed at a predetermined position.
The control board 82 of the recording head 80 is attached, and a wiring 84 from the control board 82 to the recording head 80 is arranged. As described above, a bending process was required to form the claw portion 75a. Particularly, the claw portion 75a and the claw portion 7 which are bent by 90 degrees are used.
It took time and effort to accurately attach the recording head 80 to the recording head 5a. That is, in order to accurately position the recording head 80 with respect to the platen roller 60 in the operation state of the recording apparatus, the recording head 80 needs to be positioned at an appropriate position with respect to the notch portion 75b of the claw portion 75a for holding the shaft 62 of the platen roller 60. The recording head 80 must be attached,
It was difficult to determine a position for mounting the recording head 80 so as to have a certain distance as measured from the inner surface of the bent claw portion 75a. Also, the work of mounting the recording head 80 and the control board 82 between the claw portions 75a bent 90 degrees is not easy because the claw portions 75a hinder the work. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a holding member that has a simple configuration that does not require bending, and that can easily determine a mounting position of a recording head and easily mount the recording head. The present invention is to provide a recording device having:

[0005]

According to a first aspect of the present invention, there is provided a recording apparatus having an opening mechanism, wherein a platen roller is disposed on a main body of the recording apparatus and recording is performed on the opening mechanism. A recording apparatus in which a head is disposed, and the platen roller and the recording head are in contact with the opening mechanism closed, and the platen roller and the recording head are separated with the opening mechanism opened. A plate-shaped recording head holding member that is disposed in the opening mechanism portion and is urged by the elastic member toward the platen roller to press the recording head against the platen roller, and the plate-shaped recording head holding member is disposed in the longitudinal direction of the platen roller. A recording head holding member formed with an extending portion substantially parallel to the plate surface of the recording head ;
And a positioning portion having an abutting end that abuts on only one side edge to position the recording head holding member. A second aspect of the present invention provides a recording apparatus having an opening mechanism.
A platen roller is located on the main unit side of the recording device.
The recording head on the side of the opening mechanism, and
The platen roller and recording head abut in the closed state
With the opening mechanism open, the platen roller
In a recording device configured to be separated from the head,
The platen is disposed in the opening mechanism, and the platen is
The recording head to the platen
A plate-shaped recording head holding member pressed against the roller,
The platen roller is substantially parallel to the plate-like plate surface in the longitudinal direction.
A recording head holding member having an extended portion, and a recording apparatus
Provided on the body side and in contact with the extended portion of the recording head holding member.
A positioning portion that contacts and positions the recording head holding member
And the recording head holding member has one of the extending portions.
The recording head is positioned so that the heat generating part is located on the straight line of the side edge.
It is characterized by being attached.

[0006]

In the recording apparatus according to the first aspect of the present invention, when the platen roller is rotated during recording, the recording head in contact with the recording paper fed by the platen roller is moved with this rotation. . At this time, the extending portion of the print head holding member holding the print head comes into contact with the positioning portion provided on the printing apparatus main body side. As a result, the recording head held by the recording head holding member is positioned with respect to the platen roller. Since the extending portion of the recording head holding member is formed substantially parallel to the plate surface of the recording head holding member, there is no need to bend the extending portion when forming the recording head holding member. Furthermore,
Since the recording head holding member is formed in a substantially flat plate shape including the extending portion, it is easy to attach the recording head to the recording head holding member. Further, in claim 2, the recording
The extending part of the head holding member and the positioning part are in contact
When recording, always record on the top of the platen roller.
The heating portion of the head is located. In addition, the extension
Recording head so that the heating part is on a straight line connecting a pair of side edges
Positioning can be determined easily.
Can be done.

[0007]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a facsimile apparatus 10 embodying the recording apparatus of the present invention. At a substantially central portion of the apparatus housing 20, a roll accommodating portion 22 for accommodating a thermosensitive recording paper roll 90 is formed. A heat-sensitive recording head 80 and a platen roller 60
Are arranged, and a cutter unit 30 is further arranged on the left side. A recording paper discharge port 24 is provided on the left side of the apparatus housing 20.
Is formed, and a tray 26 is inserted into the recording paper discharge port 24. A document table 27 is provided above the facsimile machine 10, and a reading device (not shown) for reading a document is disposed below the document table 27.

In the facsimile apparatus 10, the recording paper 92 is pulled out from the recording paper roll 90 by rotating the platen roller 60 in the direction shown in the drawing, and the recording paper 92 is recorded by the recording head 80 while being conveyed toward the cutter unit 30. Recording is performed on the paper 92, cut by the cutter unit 30, and then stored on the tray 26.

FIG. 2 shows a recording head holding member 40 for holding a recording head 80 according to the present embodiment. To form the recording head holding member 40, first, a steel plate is punched into the illustrated shape having a pair of extending portions 40a at both ends in the longitudinal direction and an extending portion 40c at one end in the transverse direction. Then, the recording head 80 is bonded with an adhesive so that the heat generating portion 80a comes on a straight line (indicated by a dashed line in the figure) connecting one side edge 40b of the pair of extending portions 40a. Next, the control is performed by attaching the control board 82 of the recording head 80 and passing the wiring 84 from the control board 82 to the recording head 80.

The recording head holding member 40 is provided with a spring 72 on the lid 28 side of the facsimile apparatus 10 as shown in FIG.
(The recording head holding member 4
The reference numeral 0 is engaged with the lid 28 while allowing a slight movement by the defining metal fittings, but the defining fittings are not shown for clarity). The lid 28 is rotatably supported by a shaft 56. With the cover 28 closed, the recording head holding member 40 is pushed down by the urging force of the spring 72. Thereby, the recording head holding member 4
The recording head 80 held at 0
It is pressed against the 0 side. On the other hand, near the axial side end of the platen roller 60, an arm portion 29 shown by a dotted line in the figure is provided,
The end surface 29a of the arm portion 29 is formed so as to be located at a position extending in the axial direction from the uppermost portion of the circumference of the platen roller 60 (indicated by 60a in the figure).

Next, the facsimile apparatus 1 according to the present embodiment
The position of the recording head 80 will be described with reference to FIG. 1 showing a cross section of FIG. 1 and FIG. 3 showing the state of attachment of the recording head holding member 40 to the facsimile apparatus 10. When the recording operation is started, as shown in FIG. 1, the platen roller 60 is rotated by a motor (not shown) in the direction of the arrow in the figure, and the recording paper 92 is recorded by the frictional force between the platen roller 60 and the recording paper 92. The paper is pulled out from the paper roll 90 and transported to the recording paper discharge port 24 side of the apparatus housing 20. At this time, the recording head 80 that is in pressure contact with the recording paper 92 also moves to the recording paper outlet 24 due to the frictional force with the recording paper 92.
The movement of the recording head 80 stops at a position where the extending portion 40a of the recording head holding member 40 abuts on the end surface 29a of the arm portion 29 of the apparatus housing 20, as shown in FIG. 80 is positioned. After the positioning of the recording head 80, the recording paper 92 is
It is conveyed while sliding on the surface of 0. In this state,
A control signal is applied from the control board 82 to the recording head 80, and the heat is generated by the heat generating portion 80 a of the recording head 80, so that recording is performed on the thermal recording paper 92.

Here, when the recording paper roll 90 is replaced, as shown in FIG. 4, the lid 28 is rotated counterclockwise about the shaft 56, and the lid 28 is opened. At this time,
The engagement between the extending portion 40a of the recording head holding member 40 and the arm portion 29 is released. In this state, the recording paper roll 90
Is replaced, and the leading end of the recording paper 92 is pulled out to almost the upper part of the platen roller 60 so that the recording paper 92 is held between the recording head 80 and the platen roller 60 when the lid 28 is closed. And then the platen roller 60
The recording paper 92 is pulled out from the recording paper roll 90 by the rotation of. In this embodiment, the recording paper roll 90 is moved from the recording head holding member 75 of the prior art shown in FIG.
Unlike the claw portion 75a protruding in the direction, as shown in FIG. 4, when the recording paper roll 90 is replaced, the extending portion 40a does not come into contact with the hand of the exchanger, so that the recording paper roll can be easily mounted. it can.

The arm 29 and the platen roller 60 described above.
The bearing portion 25 (see FIG. 3) is integrally formed by resin molding as a part of the device housing 20 and its bearing portion 25 is formed.
1 for bearing the shaft 62 of the platen roller 60
5 is fixed. This integral formation is such that the end surface 29a of the arm portion 29 comes to a position extending in the axial direction at the uppermost portion of the circumference of the platen roller 60 which is supported by the bearing portion 25 as described above. On the other hand, the recording head holding member 40 abutting on the end surface 29a of the arm portion 29 is positioned on a straight line (shown by a dashed line in FIG. 2) connecting the pair of side edges 40b of the extending portion 40a as described above. The recording head 80 is mounted so that the heating section 80a is located. Therefore, during the recording in which the extending portion 40a of the recording head holding member 40 and the arm portion 29 are in contact with each other, the platen roller 6 is always
The heating portion 80a of the recording head 80 is located on the uppermost portion 60a of the recording head 80 (see FIG. 1).

In this embodiment, a recording head holding member 75 having a claw portion 75a according to the prior art described above with reference to FIG.
Unlike this, the bending of the steel plate is not required. In addition, in the recording head holding member 75 of the related art, a position for mounting the recording head 80 must be determined so as to be a certain distance measured from the claw portion 75a (notch portion 75b) bent by 90 degrees. did not become. On the other hand, in the recording head holding member 40 of the present embodiment, the recording head 80 is arranged such that the heat generating portion 80a comes on a straight line (indicated by a dashed line in FIG. 2) connecting the pair of side edges 40b of the extending portion 40a. Is determined, the mounting position can be easily determined. Furthermore,
In the conventional recording head holding member 75, the recording head 80 is disposed between the claw portions 75a bent by 90 degrees.
In addition, the workability was poor because the control board 82 was attached.
On the other hand, in this embodiment, since the recording head 80 and the control board 82 need only be mounted on the plate surface of the substantially flat recording head holding member 40, the workability is high.

Next, a recording head holding member 77 according to a second embodiment of the present invention will be described with reference to FIG. In forming the recording head holding member 77, first, a pair of extending portions 77a having through holes 77d are provided at both ends in the longitudinal direction, and an extending portion 77c is provided at one end in the transverse direction. This is performed by integrally forming the illustrated shape by resin molding. At the time of this resin molding, a concave portion (not shown) indicating the mounting position of the recording head 80 is also formed.
Next, the recording head 80 is fitted into the recess, the control board 82 of the recording head 80 is attached, and the recording head 8
0, the wiring 84 from the control board 82 is passed. The recording head holding member 77 is formed by fitting a platen roller provided on a facsimile apparatus (not shown) with a projection for maintaining a predetermined position and the through hole 77d.
Positioning of 0 is performed.

In the above-described first embodiment, the recording head 80 is mounted so that the heating portion 80a comes on a straight line connecting the pair of side edges 40b of the extending portion 40a of the recording head holding member 40. The attachment position of the recording head 80 to the head holding member 40 and the relative positional relationship between the arm 29 and the extending portion 40a of the recording head holding member 40 can be changed as appropriate. Further, in the second embodiment, the through hole 77 is formed in the extending portion 77a of the recording head holding member 77.
Although d is provided, a slit may be provided instead of the through hole 77d. In the above-described embodiment, the facsimile apparatus 10 using a thermosensitive recording paper as the recording apparatus is used.
However, it is needless to say that the present invention can be suitably used for other recording apparatuses. In the first embodiment, the arm 29 and the end surface 29a of the arm are
The arm part 29 and the end face 29a are formed on the bearing 15 side, and the bearing 15 is fixed to the bearing part 25, thereby positioning the recording head holding member 40. It is also possible.

[0017]

As described above, in the recording apparatus of the present invention, since the recording head holding member is formed substantially flat,
A simple configuration that does not require bending at the time of processing. Also,
The mounting position of the recording head is easily determined, and the workability of mounting the recording head is improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a facsimile apparatus according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a recording head holding member according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing a state of positioning of a recording head holding member shown in FIG.

FIG. 4 is a cross-sectional view showing a state in which a lid of the facsimile apparatus of FIG. 1 is opened.

FIG. 5 is a perspective view of a recording head holding member according to a second embodiment of the present invention.

FIG. 6 is a cross-sectional view illustrating a state in which a cover of a recording apparatus according to the related art is opened.

FIG. 7 is a perspective view showing a state of positioning of the recording head holding member of the related art shown in FIG.

FIG. 8 is a perspective view of a conventional recording head holding member.

[Explanation of symbols]

 29 arm part 29a end face 40 recording head holding member 40a extending part 60 platen roller 80 recording head

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B41J 25/34 B41J 2/32

Claims (2)

(57) [Claims] 1. A recording apparatus having an opening mechanism, wherein:
A platen roller is disposed on the recording apparatus main body side, a recording head is disposed on the opening mechanism side, and the platen roller and the recording head are in contact with the opening mechanism closed, and the opening mechanism is opened. In a recording apparatus configured to separate a platen roller and a recording head, a plate-shaped recording device is disposed in the opening mechanism, and is urged toward the platen roller by an elastic member to press the recording head against the platen roller. A recording head holding member having an extending portion formed in the longitudinal direction of the platen roller and substantially parallel to the plate-like plate surface; a recording head holding member provided on a recording apparatus main body side; A recording portion having an abutting end for releasing the abutting end for positioning the recording head holding member in contact with only one side edge of the extending portion of the recording paper discharge side. apparatus . 2. A recording apparatus having an opening mechanism, comprising:
Placing the platen roller on the side of the recording device, opening mechanism
The recording head is located on the side, and the opening mechanism is closed.
The platen roller and the recording head come into contact with each other, and the opening mechanism
The platen roller separates from the recording head in the open state
In the recording device configured as described above, It is arranged in the opening mechanism, and the plastic
The recording head is urged toward the
A plate-shaped recording head holding member that presses against rollers
The platen roller is substantially flat with the plate-like plate surface in the longitudinal direction.
A recording head holding member formed with a long extending portion; The recording head main body is provided on the recording apparatus main body side.
Positioning the recording head holding member in contact with the extending portion
And a positioning part, The recording head holding member has a straight line on one side edge of the extending portion.
The recording head is attached so that the heating section is
A recording device, comprising: