JP2934096B2 - 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 such as a facsimile apparatus and a printer, and more particularly, to a recording apparatus for recording on a long sheet drawn from a sheet roll wound in a roll shape.

[0002]

2. Description of the Related Art Conventionally, many recording apparatuses such as printers and facsimile machines use a sheet roll in which a long sheet is wound around a core in a roll shape. It is configured such that an image is formed according to image information by a recording head that is conveyed by a platen roller and presses the platen roller.

A description will be given of an example of the recording apparatus with reference to a recording section of a facsimile apparatus shown in FIG. In FIG. 9, the roll holder 74 is loaded with a sheet roll 75a around which a long heat-sensitive sheet that develops color by heat is wound. The roll holder 74 has a shape in which the upper part is opened. It is arranged on the back side of the main body 71. The sheet roll 75a loaded in the roll holder 74 generates frictional resistance when the outer peripheral surface of the sheet roll 75a contacts the inner surface of the holder 74.

That is, the sheet 75 is rolled from the sheet roll 75a.
When the sheet roll 75a is pulled out, when the weight of the sheet roll 75a is heavy, a large frictional resistance occurs, and as the sheet 75 is pulled out and the weight of the sheet roll 75a decreases, the frictional resistance decreases. This frictional resistance has the effect of imparting tension to the sheet 75 when the sheet 75 is pulled out, and the tension applied to the sheet 75 pulled out also changes in proportion to the magnitude of the frictional resistance.

The recording means 76 for recording a predetermined image on the sheet 75 includes a platen roller 76a and a recording head.
76b. The platen roller 76a is formed by forming a member having a high coefficient of friction such as hard rubber into a roller shape and rotatably attached to the apparatus main body 71. By driving this by a driving source (not shown), the sheet 75 is formed. It is configured to be transported.

The recording head 76b forms an image on the sheet 75 by heating the sheet 75 according to image information, and is configured to press a platen roller 76a via the sheet 75. ing. In particular,
The cover 72 is rotatably attached to the cover 72 by a shaft 76c, and is configured to press the platen roller 76a by a compression spring 76d when the cover 72 is closed. Therefore, when the platen roller 76a is rotated with the sheet 75 inserted between the platen roller 76a and the recording head 76b, the sheet 75
Is conveyed.

The recording head 76b in the present embodiment uses a so-called line type thermal head in which a large number of heating elements which generate heat by energization are arranged in the width direction of the sheet 75 on the surface in contact with the sheet 75. By energizing the heating element in accordance with image information, the sheet 75 is selectively heated and colored to perform recording.

Next, the cutter 77 comprises a fixed blade 77a and a driving blade 77.
A rotary cutter with b is used. Specifically, the fixed blade 77a is fixed to the apparatus main body 71, and the drive blade
77b is mounted so as to be rotatable about a shaft 77c, and cuts the sheet 75 by rubbing against the fixed blade 77a when the driving blade 77b is rotated by the driving means. The drive blade 77b can be driven by a drive source that drives the platen roller 76a, or can be driven by another independent drive source.

The sheet 75 cut by the cutter 77
Is a pair of discharge rollers driven by driving means (not shown).
Although the sheet 75 is discharged to the stacker 79 by the sheet roll 78, since the sheet 75 is wound around the core 75b, the sheet roll 75 is discharged.
When pulled out from a
To say).

The curl varies depending on the diameter of the sheet roll 75a. For example, the curl generated when the roll diameter is large is such that the curl height h is small as shown in FIG. 10A, and the curl height h is large when the roll diameter is small. ).

Therefore, a curl correcting mechanism (hereinafter referred to as "decal mechanism") E for correcting the curl is provided, and the sheet 75 is curled when passing through the decurling mechanism E. That is, the position of the guide shaft 73 is configured to be movable with respect to the decurling shaft 72. When the sheet 75 is guided by the two shafts 72, 73, the curl is added in the opposite direction to the curl, so that the curl is reduced. It will be corrected.

The guide shaft 73 is urged against the sheet 75 by urging means (not shown). The curl correction is performed when the roll holder 74 is loaded with the large-diameter roll 75a and when the small-diameter roll 75a is loaded. The effects are configured differently.

[0013]

However, in the above-mentioned prior art, since the platen roller 76a is disposed below and the recording head 76b is disposed above, image information is recorded on the upper surface of the sheet 75. When recording is performed on a plurality of sheets 75, the discharged sheets 75 are inverted and discharged to the stacker 79 so that the back side faces upward in order to maintain the order. The sheet 75 stored in the stacker 79 is held in a curved state by hanging down from the rear end through the open portion of the stacker 79 by its own weight, so that the sheet 75 is curled by the decurling mechanism E according to the roll diameter. The straightened sheet 75 may be recurled.

In particular, when a large number of sheets 75 are stored in the stacker 79, the lowermost sheet 75 may be broken due to the weight of the sheet discharged on top of the sheet 75, and the effect of curl correction may be reduced. there were.

An object of the present invention is to stably hold a sheet roll with a simpler configuration in order to solve the above-mentioned problems of the prior art.
Another object of the present invention is to provide a recording apparatus capable of reliably correcting the curl of a sheet and maintaining the effect of correcting the curl of a sheet.

[0016]

Means for Solving the Problems The problems of the above prior art are solved.
And applied to the embodiments described below.Representative means
Is a sheet roll wound into a rollLoad and hold
Opposite to the direction in which the sheet is pulled out with respect to the horizontal plane
Direction and upstream in the direction in which the sheet is pulled out.
And the seat on the inclined surface of the mounting section described above.
The sheet roll is located on the upstream side
A deterring unit that deters an attempt to move from the placement unit
A holding member having,Before drawn out from the placement section side
Long sheet rollTransporter for transporting sheets
Steps and curls for correcting the curl of the sheet
Straightening means;On the underside of the seatRecord according to image information
Recording means for recording, and cutting the sheet at a predetermined position
Cutting means forSheet recording surface facing down
As ifDischarging means for discharging, and the discharging means
Sheet loading for stacking sheets discharged by a step
MeansHavingIt is characterized by the following.

[0017]

According to the above construction, there is provided a mounting portion and a restraining portion.
With a simple configuration just putting a sheet roll on the holding member,
Pull the sheet from the side where the sheet roll is placed
Sheet withdrawing direction caused by
Use the force that the sheet roll tries to move in the opposite direction
Thus, the behavior of the sheet roll can be stabilized .

Further, an elongated sheet drawn out from the portion-side placing from sheet roll loaded in the holding member and conveyed by the conveying means, the time sheet is wound while passing through the curl correction means habit corrective Is done. Then, recording is performed on the lower surface of the sheet in accordance with the image information by the recording means, and the sheet is cut by the cutting means in page units. The cut sheet is conveyed by the discharge unit with the recording surface facing downward and discharged to the sheet stacking unit, and the following sheets are sequentially stacked in the same manner.

[0019]

Next, an embodiment of the present invention in which the above means is applied to a facsimile machine will be described. 1 is a sectional view showing a schematic configuration of the entire facsimile apparatus, FIG. 2 is a perspective view showing an external configuration of the facsimile apparatus, FIG. 3 is an explanatory view showing a sheet conveying operation at the time of a large-diameter roll, and FIG. FIG. 5 is a perspective view showing a configuration of a roll holder, FIG. 6 is a sectional view of the roll holder, FIG. 7 is a perspective view showing a state where a cover of a recording unit of the facsimile apparatus is opened, and FIG. FIG. 3 is a cross-sectional view showing a state where a cover of a recording unit of the facsimile apparatus is opened.

[Appearance Configuration] This facsimile apparatus has a reading section A for reading an original image and a recording section B for recording on a sheet according to image information in the apparatus main body. As shown in FIG. 2, a recording cover 1 also serving as a document table is openably and closably attached to the main body of the apparatus as a cover for covering the upper surface of the recording section B. When the release button 2 is pressed, the upper surface of the recording section is opened. It is configured to be. Reference numeral 3 denotes an operation panel equipped with ten keys, function keys, a display unit, and the like, and the reading unit A is disposed below the operation panel. Reference numeral 4 denotes a handset, 5 denotes a document discharge tray for discharging a document after reading, and 6 denotes a sheet discharge tray for discharging a sheet after recording. Hereinafter, a schematic configuration of each unit of the facsimile apparatus will be described.

[Reading Unit A] In FIG. 1, a reading unit A is arranged below the operation panel 3. A plurality of documents are set on the upper surface of the recording cover 1 with the image side facing down, and the operation panel 3 is operated to start a reading operation. Hereinafter, the configuration of each unit will be described in detail.

(Document Conveying Means) Of the plurality of documents set on the recording cover 1, several documents from the bottom are conveyed to the downstream side by the pressing pieces 7a and the preliminary conveying rollers 7b, and the separation roller 8a and the brake roller An ADF (automatic document feeder) 8b separates and transports the lowermost document one by one. The separated document is transported to the document reading position 11 by a document transport roller 9a and a driven roller 9b, and a document discharge roller 10a and a driven roller 10b.

(Reading Unit) The original conveyed to the original reading position 11 is irradiated with light by a light source 12, and the reflected light is converted into an electric signal by a mirror 13, a lens 14, and a photoelectric conversion element 15 such as a CCD. The image information is transferred to its own recording unit B in the copy mode, and is transmitted to the recording unit of another machine in the facsimile mode.

(Original Loading Member) The originals after reading the image are sequentially discharged with the image face down onto an original discharging tray 5 provided outside the apparatus (left side in the drawing) by the original discharging roller 10a and the driven roller 10b and stacked. Is done.

[Recording Unit B] The recording unit B is disposed under the recording cover 1 serving as a document table as a cover, as described above. Hereinafter, the configuration of each unit will be described in detail.

(Holding Member) A drop-in type roll holder 16 serving as a holding member having an open upper surface is provided at a predetermined position on the right side of the apparatus main body.
The roll holder 16 is provided with a sheet roll 17a in which a long heat-sensitive sheet 17 is wound in a roll shape.
Is loaded.

The roll holder 16 holds a sheet roll 17a.
Pull out the elongate sheet 17 to the horizontal surface to fill and hold
Direction (the direction of arrow C in FIG. 1)
Upstream in the direction in which the port 17 is pulled out (the direction of arrow C in FIG. 1)
(A right side in FIG. 1)
The direction in which the long sheet 17 on the inclined surface of the mounting portion is pulled out (see FIG. 1).
From the mounting portion on the upstream side (the right side in FIG. 1) in the direction of arrow C in FIG.
The sheet roll 17a is placed upright and the roll holder is
Prevents falling or moving from 16 platforms
The elongate sheet 17 is pulled out from the mounting portion side of the sheet roll 17 a loaded in the roll holder 16.

(Conveying Means) The sheet 17 pulled out from the sheet roll 16 is conveyed by a platen roller 18 driven by a driving source (not shown). The platen roller 18 conveys the sheet 17 by friction with the sheet 17, and is composed of, for example, a rubber roller using silicon rubber or the like.

(Curl Correction Means) The sheet 17 fed from the sheet roll 16 is
Because it was wound in a roll, it has a curl (hereinafter referred to as "curl"). A curl correcting mechanism including a decurl shaft 19 and a guide shaft 20 is provided to correct the curl.

The guide shaft 20 is rotatably mounted on a support shaft 22 via a guide arm 21.
The guide shaft 20 adjusts the angle at which the sheet 17 is wound around the decurl shaft 19 to correct curl. The sheet 17 having passed through the curl correcting mechanism is guided between the sheet guides 23a and 23b provided above and below, and is guided to the recording means. Also the above seat guide
Each of 23a and 23b is provided with a reflective photosensor 24 for detecting white and black end marks on the back side of the sheet 17, and detects the remaining amount of the sheet 17.

(Recording Means) The sheet 17 whose curl has been corrected and conveyed through the curl correcting mechanism is recorded from below by the recording head 25 in accordance with image information. As the recording head 25,
A thermal head in which heating elements that generate heat in accordance with image information are arranged in the width direction of the sheet is used.
The platen roller 18 is pressed by a force of about 3 kgf. When an image signal is transmitted from a control unit (not shown) by a receiving operation in the copy mode or the facsimile mode, heat is applied from below the sheet 17 by the recording head 25 to record image information.

(Cutting Means) The sheet 17 after image recording is cut by a cutter 27 in page units. The cutter 27 includes a fixed blade 27a and a drive blade 27.
A rotary cutter with b is used. Specifically, the fixed blade 27a is fixed to the apparatus main body, and the driving blade 27a is fixed.
b is attached so as to be rotatable about a shaft 27c, and cuts the sheet 17 by rubbing against the fixed blade 27a when the driving blade 27b is rotated by the driving means.

(Discharge Means) The cut sheet 17 is conveyed while being held by the sheet discharge rollers 28a and 29a and the driven rollers 28b and 29b with the recording surface facing down. The sheet discharge roller pair 28a, 28
An actuator 31a for detecting the sheet 17 and a photo interrupter 31b are provided in the discharge path 30 between the sheet b and the sheet discharge roller pair 29a, 29b. The photo-interrupter 31b is formed by integrating a light-emitting element and a light-receiving element. When the sheet 17 passes through the discharge path 30, the actuator 31a swings to change the output of the photo-interrupter 31b. Is detected.

(Sheet Loading Means) The sheet 17 conveyed by the pair of sheet discharge rollers 29a and 29b is placed on a sheet discharge tray 6 provided outside the apparatus (left side in the drawing) in a flat shape with the recording surface facing down. The sheets are discharged, and the sheets 17 on the next page and thereafter are sequentially stacked in the same manner.
The sheet stacking surface of the sheet discharge tray 6 is inclined upward and obliquely to the left at an angle of about 10 ° with respect to the horizontal plane, so that the order of the sheets 17 after being discharged can be easily aligned.

Therefore, by discharging the sheet 17 in a planar manner onto the sheet discharge tray 6 with the recording surface facing down, the discharged sheet 17 can be stably stacked on the tray. Even if a plurality of sheets 17 are stacked, the sheets 17 can be collected without curling and maintaining the order, so that the handling of the discharged sheets 17 can be improved.

Further, since the document discharge tray 5 and the sheet discharge tray 6 are mounted on the same side (left side in the drawing) of the apparatus main body, the projection area of the apparatus on the installation surface can be reduced to save space. it can. Therefore, even when the apparatus is placed on a shelf, a desk, or the like, the apparatus is excellent in usability, and the stackability of originals and sheets can be favorably maintained in a stable state. Further, as described above, the original and the sheet are discharged to the original discharge tray 5 and the sheet discharge tray 6 while maintaining the order with the image side down, so that when handling a plurality of originals and sheets, Can also be easily handled.

[Roll Holder] Next, the configuration of the roll holder 16 for loading the sheet roll 17a in the facsimile apparatus configured as described above will be described in more detail. In FIG. 1, the sheet
17 places the roll holder 16 on the platen roller 18
When the sheet roll 17 is pulled out in the direction of arrow C from the
a rotates clockwise and tries to roll in the direction of arrow D. For this reason, the sheet 17 is pulled out from the sheet roll 17a.
At the moment when you stop pulling out , the sheet roll 17a
Of behavior is considered to be a very unstable.

In order to stabilize the sheet roll 17a in the direction in which the sheet roll 17a always rolls (the direction of arrow D), the bottom surface of the roll holder 16 is provided with a downward slant.

Therefore, the sheet roll 17a is stabilized by its own weight in a state in which the sheet roll 17a is in contact with the right side wall serving as the restraining portion of the roll holder 16. Also when conveying the sheet 17, the sheet roll 17a can and this <br/> withdrawing in contact with the bottom surface is a right <br/> sidewalls and the placing section is preventing part of the roll holder 16 Therefore, the behavior of the sheet roll 17a can be stabilized.

(Pressing Member) When the roll diameter of the sheet roll 17a is large and heavy, the behavior of the sheet roll 17a is relatively stable due to the large moment of inertia due to the inclination of the bottom surface of the roll holder 16. However, as the roll diameter of the sheet roll 17a decreases, the weight also decreases,
It is difficult to secure a stable feeding operation of the seat 17 only with the inclination of 16. Therefore, the roll holding member 32
Is provided so that the sheet roll 17a is forcibly pressed against the right side wall of the roll holder 17 as well as its own weight.

The roll pressing member 32 is mounted so as to be rotatable so that the roll diameter of the sheet roll 17a is pressed from a maximum to a minimum about a fulcrum 34 provided at a connection portion with a support member 33 provided on the apparatus main body. Have been. Between the roll holding member 32 and the support member 33, a tension coil spring 35 is provided so as to pass below the fulcrum 34, whereby the roll holding member 32 moves counterclockwise around the fulcrum 34. The sheet roll 17a is urged in the rotating direction to press and fix the sheet roll 17a so as to contact the right side wall of the roll holder 16.

Accordingly, since the position of the sheet roll 17a is fixed by the roll pressing member 32 so as to press the sheet roll 17a against the roll holder 16, the behavior of the sheet roll 17a during the feeding operation of the sheet 17 can be stabilized. Skew and slack can be prevented, and the cause of jam (paper jam) and poor conveyance can be reduced. Particularly when a small-diameter roll is used, the sheet roll 17a
Since the stability due to its own weight is small, the effect of the pressing by the roll pressing member 32 is enormous.

When the roll diameter is large, the behavior of the sheet roll 17a is relatively stable, so that the pressing force by the roll pressing member 32 is not so required. Therefore, as shown in FIG. 3, a tensile of force F ₁ to pull the roll pressing member 32 caused by the coil spring 35, the roll pressing member so that the direction component f ₁ becomes smaller which presses the sheet roll 17a around the fulcrum 34 32 and extension coil spring 35
Has been adjusted. The above sheet roll 17
If the roll diameter of a is large, the weight
Since the feeding force of the sheet roll 17a is large, the increase in the feeding force of the sheet roll 17a can be reduced by reducing the pressing force by the roll pressing member 32.

On the other hand, when the roll diameter is small, the behavior of the sheet roll 17a becomes unstable,
A larger pressing force by 32 is required. Therefore, as shown in FIG. 4, the tensile of the force F ₂ to pull the roll pressing member 32 caused by the coil spring 35, the roll pressing members as component f ₂ direction increases which presses the sheet roll 17a around the fulcrum 34 The connection position between the tension coil spring 32 and the tension coil spring 35 is adjusted. In addition, the above-mentioned sheet roll 17a
When the diameter of the roll is small, the feeding force of the sheet 17 is smaller than that of the large-diameter roll, so that there is no problem even if the pressing force by the roll pressing member 32 is increased.

Therefore, by reducing the pressing force when the sheet roll 17a has a large diameter and increasing the pressing force when the sheet roll 17a has a small diameter, the difference in the pull-out force due to the difference in the weight of the sheet roll 17a can be increased unnecessarily. The difference in driving force of the driving source required for sheet conveyance can be reduced. Accordingly, vibration due to excess energy of the driving source can be suppressed, noise can be reduced, and the transport operation of the sheet 17 can be stabilized.

As shown in FIG. 5, the sheet roll 17a
Until the roll diameter of the sheet rolls from the maximum to the minimum
A belt-like portion (hatched portion in the figure) from the right side wall to the bottom surface of the roll holder 16 with which the roll 17a comes into contact protrudes from the other inner surface. To prevent this, an ultra-high molecular weight polyethylene sheet 36 having a low coefficient of friction is adhered.

The roll holder 16 has an A4 width and a B
It is assumed that a sheet roll 17a having two sizes of four widths is used. Based on the case where the sheet roll 17a having a width of B4 is loaded, when the sheet roll 17a having an A4 width is loaded, one side wall is used. It is configured such that the position of the partition plate 37 is changed based on the reference.

The belt-like portion to which the polyethylene sheet 36 is adhered is provided symmetrically with respect to the center of the B4 width sheet roll 17a. Even when the A4 width sheet roll 17a is loaded, two portions are provided. They are provided as far apart as possible to allow contact.

As shown in FIGS. 7 and 8, at the time of replacement of the sheet roll 17a or maintenance of the inside of the recording section B, the recording cover 1 is rotated by about 90 ° about the rotation shaft 1a and the roll holder 16 is rotated. It is configured so that the upper part can be opened. Specifically, the release button 2 shown in FIG.
By pressing the hook, the hook 1b shown in FIGS. 1 and 8 is disengaged from the hook shaft 38 on the apparatus body side, and at the same time, the spring 39
Thus, the recording cover 1 is rotated by a predetermined amount about the rotation axis 1a.

The recording drive unit 40 including the platen roller 18, the guide shaft 20, and the driving source is mounted on the recording cover 1 so that the sheet conveying path upstream of the cutter 27 is completely opened. It is configured.

The roll pressing member 32 is connected to an arm 41 rotatably attached to the recording cover 1. When the recording cover 1 is opened, the roll pressing member 32 presses the roll pressing member 32 against the sheet roll 17 a. It is configured to release the force.

Therefore, when the recording cover 1 is closed, the sheet roll 17a is pressed against the roll holder 16 by the roll pressing member 32, and the sheet roll 17a is pressed.
The behavior of a can be stabilized. Recording cover 1
When the sheet roll 17a is opened, the pressing state of the roll pressing member 32 is also released in conjunction with the recording cover 1, so that when the user replaces the sheet roll 17a or performs maintenance work, the roll pressing member 32 may be in the way. And workability can be improved.

(Elastic Member) Further, as shown in FIG. 6, between the polyethylene sheet 36 and the roll holder 16, the skewing and slack of the sheet 17 generated on the sheet roll 17a when the sheet 17 is fed out is prevented. For this purpose, a foamed polyurethane 42 as an elastic member is provided.

Normally, the perpendicularity of the sheet roll 17a loaded in the roll holder 16 in the axial direction with respect to the direction in which the sheet 17 is pulled out rarely matches exactly in the manufacture and processing of parts. Therefore, when the sheet roll 17a is loaded, the foamed polyurethane 42 is elastically deformed due to its own weight, and the sheet polyurethane 17a with respect to the sheet 17 pull-out direction is
Has the effect of absorbing the deviation in the direction perpendicular to the axis and automatically adjusting and matching them. Thereby, the skewing of the sheet 17,
The occurrence of sagging can be prevented, and the cause of jams and transport failures can be reduced.

When the sheet roll 17a is loaded, the contact area with the polyethylene sheet 36 is increased by the foamed polyurethane 42, so that the contact pressure is reduced as compared with the case where the contact portion with the roll holder 16 is almost rigid. As a result, the scratching action is reduced, and the occurrence of coloring, scratches, dirt, and the like due to the rubbing of the sheet can be reduced, and further, the sheet has the effect of preventing sagging.

The elastic member may be a sheet roll.
When a large diameter roll with a maximum weight of 17a is used (weight of about 1.5k
It is preferable that g) also has an elastic coefficient in a range that allows elastic deformation. Also, the sheet roll 17 of the roll holder 16 is provided.
Since the belt-shaped portion contacting with a is symmetrical with respect to the center of the B4 width sheet roll 17a, the roll pressing member 32 is configured to press the central portion of the B4 width sheet roll 17a with a width of about 25 mm. In addition, the sheet roll 17a is configured so that the behavior of the sheet roll 17a is stabilized when the sheet 17 is fed and rotated.

[Curl Correction Operation] Next, the sheet roll 17 loaded in the roll holder 16
The curl correcting operation when the sheet 17 pulled out from the position a is conveyed will be described with reference to FIGS. The angle at which the guide shaft 20 winds the sheet 17 around the decal shaft 19 is configured to change according to the tension applied to the sheet 17. The tension applied to the sheet 17 is caused by frictional resistance generated at a contact portion between the roll holder 16 and the sheet roll 17a. The above sheet roll 17a
When the roll diameter is large and the weight is heavy, a large frictional resistance is generated, and the frictional resistance is reduced as the sheet 17 is fed out and the weight of the sheet roll 17a is reduced.

That is, when the roll diameter of the sheet roll 17a is large, a large tension is applied to the sheet 17,
When the roll diameter is small, a small tension is applied.
The guide shaft 20 is urged in a direction indicated by an arrow in FIG. 1 by an unillustrated urging spring attached to the guide arm 21.

As shown in FIG. 3, when the roll diameter of the sheet roll 17a is large, the tension T
Because ₁ is large, the guide shaft 20 is relatively large and the angle theta ₁ of winding the sheet 17 to the decurling shaft 19, thus uncurling effect is not so large.

On the other hand, as shown in FIG.
When the roll diameter of the decreases, the tension T ₂ in accordance with the sheet 17 becomes small, as small as the angle theta ₂ which the guide shaft 20 is wound sheet 17 to the decurling shaft 19,
Therefore, a large curl correction effect is obtained.

That is, the curl correcting effect is small when the roll diameter of the sheet roll 17a is large and the curl of the sheet 17 is small, and the curl correcting effect is large when the roll diameter is small and the curl of the sheet 17 is large. Have been.

Accordingly, the sheet 17 that varies depending on the roll diameter
Can be properly corrected according to the degree of curling of the sheet 17. Also, as mentioned above,
By discharging the sheet 17 to the sheet discharge tray 6 in a planar manner, the curl correcting effect can be maintained even after the discharge.

In this embodiment, a thermal recording system is adopted as the recording means, and a thermal sheet is used as the sheet 17. However, a thermal transfer recording system using plain paper as the sheet 17 and an ink sheet is used. It is also possible to adopt.

[0064]

As described above , the present invention is applicable to a horizontal plane.
And pull the sheet in the opposite direction to the
A mounting section that is inclined downward toward the upstream side in the ejection direction
And an upstream side of the inclined surface of the mounting portion in the sheet drawing direction.
Is placed, and the sheet roll falls or moves from the placement section
To a holding member having a deterring part for deterring attempts to
The sheet roll is more stably held by its own weight
You .

Also, when conveying a sheet, the sheet
Very much by pulling out the sheet from the
Placing a sheet roll on a holding member with a simple configuration
Pull the sheet in a stable state with the
Can be put out .

Further , the roll holding member holds the sheet roll.
By pressing against the holding member, the position of the sheet roll can be adjusted.
When the roll diameter of the sheet roll changes because it can be fixed
However, the behavior of the sheet roll during the feeding operation is stable
Can be done .

[0067] Further, curl correcting force in curl straightening means, by changing in accordance with the roll diameter of the sheet roll, it is possible to correct the curl in accordance with the degree of curl of the sheet, further, the sheet Is discharged to and stacked on the sheet stacking means which is horizontal or inclined, so that the curling correction effect can be maintained.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a schematic configuration of an entire facsimile apparatus.

FIG. 2 is a perspective view showing an external configuration of the facsimile apparatus.

FIG. 3 is an explanatory diagram showing a curl correcting operation at the time of a large-diameter roll.

FIG. 4 is an explanatory view showing a curl correcting operation at the time of a small-diameter roll.

FIG. 5 is a perspective view illustrating a configuration of a roll holder.

FIG. 6 is a sectional view of a roll holder.

FIG. 7 is a perspective view showing a state in which a cover of a recording unit of the facsimile apparatus is opened.

FIG. 8 is a cross-sectional view illustrating a state where a cover of a recording unit of the facsimile apparatus is opened.

FIG. 9 is a cross-sectional view illustrating a configuration of a conventional facsimile machine.

FIG. 10 is an explanatory diagram showing curling of a sheet.

[Explanation of symbols]

 A: reading section B: recording section 1: recording cover 2 ... release button 3 ... operation panel 4 ... handset 5 ... original discharge tray 6 ... sheet discharge tray 7a ... pressing piece 7b ... preliminary transport roller 8a ... separation roller 8b ... brake roller 9a: Original conveying roller 9b, 10b, 28b, 29b: Followed roller 10a: Original discharge roller 11: Original reading position 12: Light source 13: Mirror 14, lens 15, Photoelectric conversion element 16, Roll holder 17, Sheet 17a, Sheet roll 18 Platen roller 19 Decal shaft 20 Guide shaft 21 Guide arm 22 Support shaft 23a, 23b Sheet guide 24 Reflective photo sensor 25 Recording head 26 Press-contact spring 27 Cutter 27a Fixed blade 27b Drive Blades 28a, 29a Sheet discharge roller 30 Discharge path 31a Actuator 31b Photointerrupter 32 Roll holding member 33 Support member 34 ... supporting point 35 ... extension coil spring 36 ... polyethylene sheet 37 ... partition 38 ... hook shaft 39 ... flip-up spring 40 ... recording drive unit 41 ... arm 42 ... polyurethane foam

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B65H 23/00-23/34 B41J 15/00-15/24 H04N 1/00

Claims (5)

(57) [Claims] The method according to claim 1 sheet roll wound in a roll
Pull the sheet out against a horizontal plane to hold it
In the opposite direction and in the direction in which the sheet is pulled out
The mounting part tilted downward toward the side and the mounting part
The sheet is located upstream of the slope on the sheet
Prevent trolls from moving from the storage
A holding member having a depressing portion, and a long length of the sheet roll pulled out from the placement portion side.
Conveying means for conveying the sheet- like sheet; curling correcting means for correcting curling of the sheet; recording means for recording on the lower surface side of the sheet in accordance with image information; in a cutting means for cutting, a discharge means for discharging the recording surface of the sheet after the cut into a downwardly, and a sheet stacking means for stacking the discharged sheets by the discharge means A recording device comprising: 2. The apparatus according to claim 2, wherein said holding member is mounted and held on said holding member.
The sheet roll is brought into contact with the sheet roll,
A roll presser for pressing against the placing section and the restraining section of the material;
2. The recording device according to claim 1, wherein the recording device comprises a recording member.
Equipment . 3. The curl correcting means according to claim 1 , wherein
Roll with respect to the sheet pulled out from the
Characterized by imparting a corrective force according to the roll diameter
The recording device according to claim 1 . 4. The curl correcting means is provided on a sheet.
Guide sheet that guides the sheet according to the tension
The shaft is rotated, and the decals are used to correct the curl.
Straightening by wrapping the sheet around the shaft
The recording apparatus according to claim 3, wherein: 5. The sheet stacking means according to claim 1 , wherein
The stacking surface of the discharged sheets is horizontal or inclined.
Recording equipment according to claim 1, characterized in Rukoto.