Description
Title of Invention: RECORDING APPARATUS
Technical Field
[0001] The present invention relates to a recording apparatus.
Background Art
[0002] In the related art, a recording apparatus which can perform recording on a recording
medium is used. In addition, among the recording apparatuses, a recording apparatus
which can perform recording on a roll-shaped recording medium is often used.
[0003] For example, in PTL 1, a recording apparatus is disclosed which is provided with a
platen as a medium supporting portion which can heat the roll-shaped recording
medium before recording by a recording portion is performed.
Citation List
Patent Literature
[0004] PTL 1: JP-A-2013-52578
Summary of Invention
Technical Problem
[0005] However, in a recording apparatus which can perform recording on a roll-shaped
recording medium, when the interval between a set portion of the recording medium
and a medinm supporting portion is large and humidity is high in an installation
location of the recording apparatus, a deformation, such as moisture absorption and
wrinlding (cockling), is generated when the recording medium is transported over the
interval.
[0006] Here, it is an object of the present invention to suppress moisture absorption and deformation
of the recording medium in a recording apparatus which can perform
recording on a roll-shaped recording medinm.
Solution to Problem
[0007] According to a first aspect of the present invention to solve the above-described
problem, there is provided a recording apparatus including: a set portion of a rollshaped
recording medium; a transporting portion of the recording medium; a medium
supporti~lgp ortion which supports the recording medium; and a contact portion which
is provided between the set portion and the medium supporting portion in a
transporting direction of the recording medinm and is biased to come into contact with
the recording medium.
[0008] According to the aspect, between the set portion and the medinm supporting portion
in the transporting direction of the recording medium, a contact portion which is biased
to come into contact with the recording medium is provided. For this reason, even
[0009]
[OO lo]
[0012]
[00 131
[00 161
[0017]
when humidity is high in an installation location of the recording apparatus, as the
contact portion comes into contact with the recording medium, the moisture absorption
of the recording medium is suppressed in an interval between the set portion and the
medium supporting portion. Therefore, it is possible to suppress moisture absorption
and deformation of the recording medium. In addition, since the contact portion is
biased to come into contact with the recording medium, it is possible to reduce a
concern that the contact portion is separated from the recording medium.
According to the recording apparatus of a second aspect of the present invention, in
the first aspect, the contact portion has moisture impermeability.
Here, the term "moisture impermeability" means that it is sufficient if permeation of
vapor can be blocked to the extent that the moisture absorption of the recording
medium is suppressed as the contact portion comes into contact with the recording
medium, and means that the permeation of the vapor in the air is not required to be
completely suppressed.
According to the aspect, since the contact portion has moisture impermeability, it is
possible to effectively suppress moisture absorption and deformation of the recording
medium.
According to the recording apparatus of a third aspect of the present invention, in the
first or the second aspect, the contact portion has flexibility.
According to the aspect, since the contact portion has flexibility, the contact portion
is easily brought into contact with the recording medium, and the contact portion is
simply configured.
According to the recording apparatus of a fourth aspect of the present invention, in
any one of the first to the third aspects, the contact portion is made of fluorine at a
contact part between the contact portion and the recording medium.
According to the aspect, the contact portion is made of fluorine at the contact part
between the contact portion and the recording medium. For this reason, it is possible to
alleviate a friction force between the contact part and the recording medium, and to
suppress deterioration of transporting accuracy of the recording medium.
According to the recording apparatus of a fifth aspect of the present invention, in any
one of the first to the fourth aspects, the contact portion is attachable and detachable.
Among roll-shaped recording media, in ihe recording medium which has a releasing
paper sheet on a side reverse to a recording sunface on which the recording is
performed, the releasing paper sheet is likely to absorb moisture, and particularly, is
likely to be deformed. Meanwhile, in addition to such a recording medium, there is
also a recording medium which is unlilcely to absorb moisture and is unlikely to be
deformed.
According to the aspect, it is possible to put the contact portion when the recording is
performed on the recording medium which is likely to absorb moisture and is liltely to
be deformed, and to take off the contact portion when the recording is performed on
the recording medium which is unlikely to absorb moisture and is unlikely to be
deformed. For this reason, by attaching and detaching the contact portion according to
the recording medium to be used, it is possible to suppress deformation of the
recording medium and to suppress deterioration of transporting accuracy.
[0019] The recording apparatus of a sixth aspect of the present invention, in any one of the
first to the fifth aspects, further includes a recording portion which performs recording
on the recording medium, the medium supporting portion includes a pre-heating area
in which the recording medium is heated before the recording is performed by the
recording portion, and the contact portion is attached to the pre-heating area.
[0020] According to the aspect, the contact portion is attached to the pre-heating area. For
this reason, in the recording apparatus which has the pre-heating area, it is possible to
effectively utilize space, and to make the recording apparatus compact.
[0021] According to the recording apparatus of a seventh aspect of the present invention, in
any one of the first to the sixth aspects, the contact part between the contact portion
and the recording medium in the contact portion, and a contact part between the
medium supporting portion and the recording medium in the medium supporting
portion, are surface-treated in a similar manner.
[0022] According to the aspect, the contact part between the contact portion and the
recording medium in the contact portion, and the contact part between the medium
supporting portion and the recording medium in the medium supporting portion, are
similarly surface-treated, For this reason, a charged state of the recording 111ediun1
changes when the recording medium moves from the contact part in the contact portion
to the contact pan in the medium supporting portion, and thus, it is possible to suppress
deterioration of image quality which is recorded by the recording portion.
[0023] In addition, "similar surface treatment" does not mean that exactly the same surface
treatment is required to be performed, but means the surface treatment which is
different to the extent that the charged state of the recording medium is not changed
causing deterioration of the image quality when the recording medium moves from the
contact part in the contact portion to the contact part in the medium supporting portion.
[0024] According to the recording apparatus of an eighth aspect 0.1th e present invention, in
any oue of the first to the seventh aspects, the length of the transporting direction in the
contact portion is 50% to 95% of the distance between the recording medium which is
set in the set portion and the medium supporting portion.
100251 According to the aspect, the length of the transporting direction in the contact portion
is 50% to 95% of the distance between the recording medium which is set in the set
portion and the medium supporting portion. For this reason, the recording J I I C ~ ~ L [ I J I
which is set in the set portion and the contact portion are suppressed not to come into
contact with each other. At the same time, the contact portion can immediately come
into contact with the recording medium which is extracted from the roll-shaped
recording medium, and it is possible to suppress moisture absorption in the recording
medium.
Brief Description of Drawings
[0026] [fig.l]Fig. I is a schematic side surface view illustrating a recording medium according
to one embodiment of the present invention.
[fig.2]Fig. 2 is a schematic perspective view illustrating the recording medium
according to the embodiment of the present invention.
[fig.3A]Fig. 3A is a view illustrating the order when a contact portion is attached to the
recording apparatus according to the embodiment of the present invention.
[fig.3B]Fig. 3B is a view illustrating the order when the contact portion is attached to
the recording apparatus according to the embodiment of the present invention.
[fig.3C]Fig. 3C is a view illustrating the order when the contact portion is attached to
the recording apparatus according to the embodiment of the present invention.
[fig.4]Fig. 4 is a schematic perspective view illustrating an attachment portion of the
contact portion in the recording apparatus according to the embodiment of the present
invention.
[fig.S]Fig. 5 is a schematic perspective cross-sectional view illustrating the attachment
portion of the coiltact portion in the recording apparatus according to the embodiment
of the present invention.
[fig.h]Fig. 6 is a schematic side surface cross-sectional view illustrating the attachment
portion of the contact portion in the recording apparatus according to the embodiment
of the present invention,
[fig,7]Fig. 7 is a schematic perspective view illustrating the attachment portion of the
contact portion in the recording apparatus according to the embodiment of the present
invention.
[fig.X]Fig. 8 is a schematic perspective cross-sectional view illustrating the attachment
portion of the contact portion in the recording apparatus according to the embodiment
of the present invention.
[fig.9]Fig. 9 is a schematic side surface cross-sectional view illustrating the attachment
portion of the contact portion in the recording apparatus according to the embodiment
of the present invention.
[fig. lO]Fig. 10 is a schelnatic perspective view illustrating the attachineut portion of
the contact portion in the recording apparatus according to the embodiment of the
present invention.
[fig.l l]Fig. 11 is a schematic perspective view illustrating a pressure portion of the attachment
portion of the contact portion in the recording apparatus according to the embodiment
of the present invention.
[fig.l2]Fig. 12 is a schematic perspective view illustrating the pressure portion of the
attachment portion of the contact portion in the recording apparatus according to the
embodiment of the present invention.
Description of Embodiment
[0027] Hereinafter, a recording apparatus according to one embodiment of the present
invention will be described in detail with reference to the attached drawings.
Embodiment
[0028] (Figs. 1 to 12) First, the recording apparatus according to the embodiment of the
present invention will be described.
[0029] Fig. 1 is a schematic side surface view of a recording apparatus 1 according to one
embodiment. Fig. 2 is a schematic perspective view of the recording apparatus 1
according to the embodiment. In addition, Fig. 2 also illustrates a state where a contact
portion 7 is detached.
[0030] The recording apparatus 1 according to the embodiment is provided with a set
portion 2 which sets a roll R1 of a roll-shaped recording medium P for performing
recording. In the recording apparatus 1 of the embodiment, when the roll-shaped
recording medium P is transported in a transporting direction A, the rotation axis of the
set portion 2 rotates in a rotation direction C. In addition, the roll-type recording
medium P which is wound so that a recording surface is an outer side is used in the
embodiment. However, when the roll-type recording medium P which is wound so bat
the recording surface is an inner side is used, it is possible to send out the roll R1 by
rotating opposite to the rotation direction C.
[00311 In addition, the recording apparatus 1 of the embodiment is provided with a
transporting mechanism I I which incl~tdesa pair of transporting rollers 8 as a
transporting portion for transporting the recording medium P in the transporting
direction A. In addition, at a lower portion of a medium supporting portion 3a which
supports the recording medium P, a heater 5a which can perform pre-heating before
recording on the recording medium P supported by the medium supporting portion 3a
occurs, is provided.
[0032] In addition, the recording apparatus 1 of the embodiment is provided with a heater
which can heat the recording medium P from the medium supporting portion 3a side,
as the heater 5a, b ~m~ayt b e provided with an infrared healer which is provided at a
position which faces the medium supporting portion 3a.
[0033] In addition, the contact portion 7, which extends from an end portion on an upstream
side in the transporting direction A toward the upstream side of the transporting
direction A, is attached to the medium supporting portion 3a of the embodiment. The
contact portion 7 is configured of a material having flexibility, and has a configuration
in which the upstream side of the transporting direction A is positioned further upward
than in the state illustrated in Fig. 1, in the state where the recording medium P is not
set by the elastic force of the contact portion 7. In the state illustrated in Fig. 1 in which
the recording medium P is set, the recording medium P which is pushed downward automatically
or the like, is pushed back upward by the elastic force, and comes into
contact with a surface on the opposite side to the recording surface of the recording
medium P.
[0034] When described in a different way, the recording apparatus 1 of the embodiment is
provided with the set portion 2 of the roll-shaped recording medium P, the pair of
transporting rollers 8 which transports the recording medium P, the medium supporting
portion 3a which supports the recording medium P, and the contact portion 7 which is
provided between the set portion 2 and the medium supporting portion 3a in the
transporting direction A of the recording medium P and which is biased to come into
contact with the recording medium P.
[0035] For this reason, even when a humidity is high in an installation location of the
recording apparatus 1, since the contact portion 7 comes into contact with the
recording medium P, it is possible to suppress moisture absorption of the recording
medium P from the opposite side to the recording surface in the interval between the
set portion 2 and the medium supporting portion 3a. Therefore, it is possible to
suppress moisture absorption and deformation of the recording niediuln P.
LO0361 In addition, as the contact portion 7 is biased with respect to the recording medium P,
even when a position of the recording medium P which comes into contact with the
contact portion 7 in a vertical direction is changed, it is possible to mirror the change
of the position and to change lhe position of the contact portion 7. Therefore, it is
possible to reduce the concern that the contact portion 7 is separated from the
recording medium P, and to suppress moisture absorptiou and deformation of the
recording medium P.
[0037] In addition, the contact portion 7 of the embodiment is configured of a moisture impermeable
plastic sheet, and has moisture impermeability.
[0038] Here, the "moisture impermeability" means that it is sufficient if permeation of vapor
can be bloclced to the extent that the moisture absorption of the recording medium P is
suppressed as the contact portion 7 comes into contact with the recording medium P,
and means that the per~neationo f the vapor in the air is not required to be completely
suppressed. In addition, as an experiment method of measuring the moisture impermeability,
it is possible to employ an experiment method for measu~-i11ag vapor
permeation level which is defined in JIS K7129. Here, the vapor permeation level is
preferable when the level is equal to or less than 20g per 1 m2, for 24 hours.
Since the contact portion 7 of the embodiment has moisture impermeability, the
moisture absorption and the deformation of the recording medium P are effectively
suppressed.
In addition, the contact portion 7 of the embodiment is confignred of a flexible
plastic, and has flexibility.
For this reason, the contact portion 7 is easily brought into contact with the recording
medium P, and the contact portion 7 is simply configured.
In addition, examples of a preferable configuration material for the contact portion 7
of the embodiment include polyethylene, polypropylene, polystyrene, polycarbonate,
or the like, but are not limited thereto.
In addition, in the contact portion 7 of the embodiment, the recording medium P and
a contact part 21 are fluorine-coated, and fluorine is provided in the contact part 21.
For this reason, it is possible to alleviate a friction force between the contact part 21
and the recording medium P, and the deterioration of transporting accuracy of the
recording medium P is suppressed.
In addition, as illustrated in Fig. 2, the contact portion 7 of the embodiment can be at.
tachable to and detachable from the medium supporting portion 3a.
Among the roll-shaped recording media P, in the recordiug medium P which has a
releasing paper sheet on a side reverse to the recording surface on which the recording
is performed, the releasing paper sheet is lilcely to absorb moisture, and particularly, is
likely to be deformed. Meanwhile, in addition to the recording medium P, there is also
a recording medium P which is unlikely to absorb moisture and is unlikely to be
deformed.
In the recording apparatus 1 of the embodiment, it is possible to put the contact
portion 7 when the recording is performed on the recording medium P which is likely
to absorb moisture and is likely to be deformed, and to take off the contact portion 7
whe11 the recording is performed on the recording medium P which is unlikely to
absorb moisture and is unlilcely to be deformed. For this reason, by attaching and
detaching the contact portion 7 according to the recording medium P to be used, it is
possible to suppress deformation of the recording medium P and to suppress deterioration
of transporting accuracy.
In addition, as described above, the medium supporting portion 3a of the embodiment
has a pre-heating area 22 which preheats the recording medium P with the
heater 5a.
As illuslrated in Figs. 1 and 2, the contact portion 7 is attached to the pre-heating area
22.
For this reason, in the recording apparatus 1 having the pre-heating area 22, it is
possible to effectively utilize space, and to make the recording apparatus 1 compact.
In addition, in the recording apparatus 1 of the embodiment, the contact part 21
between the contact portion 7 and the recording medium in the contact portion 7, and a
contact part 23 between the medium supporting portion 3a and the recording medium P
in the medium supporting portion 3a, are similarly surface-treated.
For this reason, a charged state of the recording medium P changes when the
recording medium P is transported in the transporting direction A and moves from the
contact part 21 in the contact portion 7 to the contact part 23 in the medium supporting
portion 3a, and thus, deterioration of image quality which is recorded by a recording
head 4 as a recording portion is suppressed.
In addition, "similar surface treatmenv does not mean that completely the same
surface treatment is required to be performed, but means the surface treatment which is
different to the extent that the charged state of the recording medium P is not changed
causing deterioration of the image quality when the recording medium P moves from
the contact part 21 in the contact portion 7 to the contact part 23 in the medium
supporting portion 3a.
In addition, the length in a direction B in the contact portion 7 of the embodiment is
configured to be longer than the width of the recording medium P which is assumed to
be used. Specifically, in the recording apparatus 1 of the embodiment, the recording
medium P having approximately 1626 mm (64 inches) of width is assumed to be used
as the largest recording medium P, and the length in the direction B in the contact
portion 7 of the embodiment is 1700 mm which is longer than the width thereof.
In addition, according to the width of the recording medium P to be used, the length
in the direction B in the contact portion 7 may be configured to be changeable.
In addition, the length of the transporting direction A in the contact portion 7 of the
embodiment is approximately 330 mm. In addition, it is preferable that the length of
the transporting direction A in the contact portion 7 be 50% to 95% of the distance
between tlie recording medium P which is set in the set portion 2 and the medium
supporting portion 3a.
In addition, the "length of the transporting direction A in the contact portion 7" is
referred to as the length from a position of the contact portion 7 which is positioned at
the end portion of the upstream side in the transporting direction of the medium
supporting portion 3a, to the position of the end portion of the contact portion 7 which
is positioned on the upstream side in the transporting direction in the contact portion 7.
In addition, the "length of the transporting direction A in the contact portion 7" is also
referred to as the length in the transporting direction of an area (area which does not
come into contact with the medium supporting portion 3a) where the contact portion 7
independently exists.
[0058] In this manner, since the length of the transporting direction A in the contact portion
7 is 50% to 95% of the distance between the recording medium P which is set in the set
portion 2 and the medium supporting portion 3a, compared to a case where the length
of the transporting direction A in the contact portion 7 is equal to or greater than 95%
of the distance between the recording medium P which is set in the set portion 2 and
the medium supporting portion 3a, it is possible to suppress contact between the
contact portion 7 and the recording surface of the recording medium P which is set in
the set portion 2. Therefore, it is possible to reduce the concern that the recording
surface will be damaged.
[0059] In addition, since the length of the transporting direction A in the contact portion 7 is
50% to 95% of the distance between the recording medium P which is set in the set
portion 2 and the medium supporting portion 321, compared to a case where the length
of the transporting direction A in the contact portion 7 is less than 50% of the distance
between the recording medium P which is set in the set portion 2 and the medium
supporting portion 3a, it is possible to cause area where the recording medium P and
the contact portion 7 come into contact with each other to be large, and to suppress
moisture absorption and deformation of the recording medium P.
[0060] In addition, in the recording apparatus 1 of the embodiment, the contact portion 7 can
be attached to the inedium supporting portion 3a so that the medium supporting portion
3a and the contact portion 7 are overlapped with each other in the transporting
direction A. This is because the medium supporting portion 3a can securely support the
contact portion 7 as the medium supporting portion 3a and the contact portion 7 are
overlapped with each other in the transporting direction A.
[0061] In addition, in the recording apparatus 1 of the embodiment, a recording mechanism
12 is provided which mounts the recording head 4 on a carriage 6 and reciprocatively
scans the recording head 4 as a recording portion in the direction B which intersects
with the trailsporting direction A of the recording inedium P, and which performs
recording by discharging ink from each nozzle on a nozzle surface provided with a
plurality of nozzles.
[0062] In addition, a direction X and a direction Y in the drawings are horizontal directions,
and a direction Z in the drawings is a vertical direction. Here, the direction B corresponds
to the direction X, and the transporting direction A of the recording medium
P at a position which faces the recording head 4 corresponds to the direction Y.
However, the invention is not limited to this configuration.
[0063] In addition, the recording apparatus 1 of the embodiment is provided with the
recording head 4 which performs recording while moving reciprocatively. However,
the recording apparatus 1 of the embodiment may be a recording apparatus which is
provided with a so-called line head that has a plurality of nozzles which discharge the
ink provided in a direction which intersects the transporting direction A.
[0064] Here, the "line head" is a recording head in which an area of nozzles formed in the
direction B which intersects the transporting direction A of the recording medium P is
provided so that the entire range in the direction B of the recording medi~imP can be
covered, and which is used in the recording apparatus that forms an image by fixing
the recording head or one side of the recording medium and moving the other side of
the recording medium. In addition, the area of nozzles of the direction B of the line
head may not be able to cover the entire range in the direction B of the entire recording
medium P to which the recording apparatus corresponds.
[0065] Furthermore, a recording apparatus, which has a recording portioil other than the socalled
ink jet type recording head as described above, may be employed.
[0066] In addition, in the area which faces the recording head 4, a medium supporting
portion 3b which supports the recording medinm P is provided. In addition, at a lower
portion of the medium s~~pportinpogr tion 3b which supports the recording medium P,
a heater 5b which can heat the recording medium P supported by the medium
supporting portion 3b during recording is provided.
[0067] In addition, the recording apparatus 1 of the embodiment is provided with a heater
which can heat the recording medium P from the medium supporting portion 3b side as
the heater 5b, but may be provided with an infrared heater which is provided at a
position which faces the medium supporting portion 3b. When the infrared heater is
used, the preferable wavelength of an infrared ray thereof is 0.76 micrometers to 1000
micrometers. In general, the infrared ray is f~~ithdeirv ided into a near infrared ray, a
mid infrared ray, and a far infrared ray, by the wavelength. Definition of division
varies, but roughly, the wavelength range is divided into 0.78 micrometers to 2.5 micrometers,
2.5 micrometers to 4.0 micrometers, and 4.0 micrometers to 1000 micrometers.
Among these, it is preferable to use the mid infrared ray.
LO0681 In addition, on a downstream side in the transporting direction A of the recording
medium P of the recording mechanism 12, a medium supporting portion 3c which
supports the recording medium P is provided. In addition, at a lower portion of the
medium supporting portion 3c which supports the recording medium P, a heater 5c
which can heat the recording medium P supported by the medium supporting portion
3c in the middle of the recording is provided.
[0069] In addition, the recording apparatus 1 of the embodiment is provided with a heater
which can heat the recording medium P from the medium supporting portion 3c side as
the heater 5c, but may be provided with an infrared heater or the like which is provided
at a position which faces the medium supporting portion 3c.
[0070] In addition, on the downstream side in the transporting direction A of the recording
medium P of the medium supporting portion 312, a winding portion 10 which can roll
up the recording medium P as a roll R2 is provided. In addition, since the recording
medium P is rolled up so that the recording surface is the outer side in the embodiment,
when the recording medium P is rolled up, the rotation axis of the winding portion 10
rotates in the rotation direction C. Meanwhile, when the recording surface is rolled up
so as to be an inner side, it is possible to roll up the recording medium P by rotating the
rotation axis opposite to the rotation direction C.
[0071] In addition, between an end portion of the downstream side in the transporting
direction A of the recording medium P in the medium supporting portion 3 and the
winding portion 10, the contact portion which is in contact with the recording medium
Pis provided in the direction B, and a tension bar 9 which can give a predetermined
tension to the recording medium P is provided.
[0072] Next, the contact portion 7 and the order when the contact portion 7 is attached to the
recording apparatus 1 will be described.
100731 Figs. 3A to 10 are schematic views illustrating attachment portions 14a and 14b of
the contact portion 7. Figs. 11 and 12 are schematic views illustrating a pressing
portion 16 of the attachment portions 14a and 14b.
[0074] Specifically, Figs. 3A to 3C are views illustrating the order when the contact portion
7 is attached to the recording apparatus 1 of the embodiment. In addition, Figs. 4 to 6
are schematic views illustrating the attachment portion 14a in a state where the contact
portion 7 of the embodiment is attached. Fig. 4 is a schematic perspective view, Fig. 5
is a schematic perspective cross-sectional view, and Fig. 6 is a schematic side surface
cross-sectional view. In addition, Figs. 7 to 9 are schematic views illustrating the attachment
portion 14a in a state where the contact portion 7 of the embodiment is
detached. Fig. 7 is a schematic perspective view, Fig. 8 is a schematic perspective
cross-sectional view, and Fig. 9 is a schematic side surface cross-sectional view. In
addition, Fig. 10 is a schematic perspective view illustrating the attachment portion 14a
in a state where the pressing portion 16 is detached from the attachment portion 14a of
the embodiment. Figs. 11 and 12 are schematic perspective views when the pressing
portion 16 is viewed from various angles. Fig. 11 is a schematic perspective view from
an upper portion side, and Fig. 12 is a schematic perspective view from a lower poition
side.
[0075] The attachment portions 14a and 14b of the embodiment are formed in a bilaterally
symmetrical shape. As illustrated in Fig. 2, in the medium supporting portion 3a, the
attachment portions 14a and 14b are provided at a position which corresponds to both
end parts in the direction B of the contact portion 7. However, a fastening direction of
a thumb screw 17 is common to both attachment portions 14a and 14b. A rotation
direction D2 illustrated in Fig. 3C is the fastening direction. A rotation direction Dl illustrated
in Fig. 3A is a loosening direction.
The attachment portions 14a and 14b of the embodiment are configured of a base
body portion 15 which is fastened by a screw to the medium supporting portion 3a, and
the pressing portion 16 which can press the medium supporting portion 3a through the
thninb screw 17.
The order when the contact portion 7 is attached to the attachment portions 14a and
14b of the recording apparatus 1 is as follows
When the contact portion 7 is attached to the medium supporting portion 3a, as illustrated
in Fig. 3A, first, a user rotates the thumb screw 17 in the rotation direction Dl
and makes a state where a space in which the contact portion 7 is inserted between the
medium supporting portion 3a and the pressing portion 16 can be made.
In addition, this state is illustrated in Figs. 7, 8, and 9.
Next, as illustrated in Fig. 3B, the user makes notch portions 24a and 24b (refer to
Fig. 2) of the contact portion 7 pass through the attachment portions 14a and 14b, and
moves the contact portion 7 in a direction E which is opposite to the transporting
direction A.
In addition, as illustrated in Figs. 6 and 9, in the pressing portion 16, an inclined
surface portion 13 is formed on the upstream side in the direction E, and the pressing
portion 16 is easily held when the contact portion 7 is moved in the direction E.
Then, at last, as illustrated in Fig. 3C, the user rotates the thumb screw 17 in the
rotation direction D2, and fixes the contact portion 7 to the medium supporting portion
3a by pressing the pressing portion 16 to the contact portion 7.
In addition, this state is illustrated in Figs. 4, 5, and 6.
In addition, as illustrated in Figs. 9 and 11, at the upper portion of the pressing
portion 16, a hole portion 18 which corresponds to the thumb screw 17 is provided. In
addition, as illustrated in Figs. 11 and 12, at the lower portion of the pressing portion
16, a groove portion 19 which corresponds to a projection portion 20 (refer to Fig. 10)
of the base body portion 15 is provided. With this configuration, in the attachment
portions 14a and 14b of the embodiment, the pressing portion 16 is unlikely to fall out
from the base body portion 15.
In addition, in the embodiment, the contact portion 7 is configured to be biased to the
recording medium P by the elastic force of the contact portion 7. However, a coufiguration
in which the elastic force is given to the contact portion 7 by pushing or
pulling up the contact portion 7 by using a spring or a cam mechanism, may be
emnployed. A configuration, in which the contact portion 7 can react to the change of
the position of the recording medium P, may be employed.
In addition, in the embodiment, a configuration in which the contact portion 7 comes
into contact with the surface on the opposite side to the recording surface of the
recording medium P is employed, but a configuration in which the contact portion 7
comes into contact with the recording surface of the recording medium P may be
employed. In the recording medium P, when the recording surface has higher moisture
absorption compared to the surface on the opposite side to the recording surface, there
is a concern that the recording surface side will be deformed by moisture absorption. In
this case, as the recording surface and the contact portion 7 are brought into contact
with each other, it is possible to suppress the moisture absorption on the recording
surface side.
[0087] In addition, a configuration, in which the contact portion 7 comes into contact with
both the recording surface of the recording medium P and the surface on the opposite
side to the recording surface, may be employed. In this case, among the contact portion
7 (first contact portion) on the recording surface side and the contact portion 7 (second
contact portion) on the surface side on the opposite side to the recording surface, at
least one may be biased.
[0088] When both contact portions are biased, it is possible to reduce the concern that both
the first contact portion and the second contact portion are separated from the
recording medium P.
[0089] In addition, when the first contact portion is not biased (when only the second
contact portion is based), compared to a case where the first contact portion is biased,
it is possible to decrease a load given to the recording surface of the recording medium
P from the first contact portion. Therefore, it is possible to reduce the concern that a
scratch or a stain is generated by the contact with the first contact portion.
[0090] In addition, when the second contact portion is not biased (when only the first
contact portion is biased), the recording medium P moves upward by mistake due to
the contact between the second contact portion and the recording medium P, and it is
possible to reduce the concern that recording medium P is separated from the medium
supporting portion 3a.
Reference Signs List
[0091] 1 Recording medium
2 Set portion
3a, 3b, 3c Medium supporting portion
4 Recording head
5a, 5b, 5c Heater
6 Carriage
7 Contact porlion
8 A pair of transporting rollers (transporting portion)
9 Tension bar
10 Winding portion
11 Transporting mechanism
12 Recording mechanism
13 Inclined surface portion
14a, 14b Attachment portion
15 Base body portion
16 Pressing portion
17 Thumb screw
18 Hole portion
19 Groove portion
20 Projection portion
21 Contact part which is in contact with the recording medium P of the contact portion
7
22 Pre-heating area
23 Contact part which is in contact with the recording medium P of the medium
supporting portion 3a
24a, 24b Notch portion
P Recording medium
R1 Roll of the recording medium
R2 Roll of the recording medium

Claims
1.A recording apparatus, comprising:
a set portion in which a roll-shaped recording medium is set;
a transporting portion of the recording medium;
a medium supporting portion which supports the recording medium;
and
a contact portion which is provided between the set portion and the
medium supporting portion in a transporting direction of the recording
medium and is biased to come into contact with the recording medium.
The recording apparatus according to Claim 1,
wherein the contact portion has moisture impermeability.
2.The recording apparatus according to Claim 1 or 2,
4.wherein the contact portion has flexibility.
The recording apparatus according to any one of Claims 1 to 3,
wherein the contact portion is made of fluorine at a contact part
between the contact portion and the recording medium.
5.The recording apparatus according to any one of Claims 1 to 4,
wherein the contact portion is attachable and detachable.
6.The recording apparatus according to any one of Claims 1 or 5, further
comprising:
a recording portion which performs recording on the recording
medium,
wherein the medium supporting portion includes a pre-heating area in
which the recording medium is heated before the recording is
performed by the recording portion, and
wherein the contact portion is attached to the pre-heating area.
7.The recording apparatus according to any one of Claims 1 to 6,
wherein the contact part between the contact portion and the recording
medium in the contact portion, and a contact part between the medium
supporting portion and the recording medium in the medium supporting
portion, are similarly surface-treated.
8.The recording apparatus according to any one of Claims 1 lo 7,
wherein the length of the transporting direction in the contact portion is
50% to 95% of the distance between the recording medium which is set
in the set portion and the medium supporting portion.