JPH04133924A - Recording device - Google Patents

Abstract

PURPOSE:To prevent the occurrence of the jamming of recording papers by providing a projection protruding toward a carrying roller on a recording paper pressing member arranged on the downstream side of a U-shaped carrying path to prevent the recording paper from being caught by a window for a pinch roller formed on the pressing member. CONSTITUTION:A continuous recording paper is sandwichedly held between a carrying roller 2a and a pinch roller 2b1 and carried onto a U-shaped carrying path 2e, and a hand inserting recording paper is carried through a branch point 2d1. The recording paper is sandwichedly held between the carrying roller 2a and a pinch roller 2b2 on a platen 4 and carried as it is pressed down by a pressing member 3 where a window 3a for the pinch roller 2b2 is formed. The pressing member 3 is provided with bently formed projections 3b all over its radial area. Thus since, even in the case of the passing through of the perforations of the continuous recording paper, the recording paper is pressed by the projections 3b, it is prevented from being caught by the window 3a, and thereby from the occurrence of its jamming.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a recording apparatus that can smoothly convey a recording sheet.

<Prior art> In conventional recording devices, especially serial printers,
They are configured to be able to transport fanfold paper (continuous paper) or cut sheets as recording media, and most of them have a built-in tractor for feeding fanfold paper. For this reason, cut sheets must be fed manually or ASF (Auto 5eet F).
Eeder (automatic paper feeder) is installed to continuously feed paper. In addition, as office space has become smaller in recent years, it has been desired to reduce the size of such recording devices and the installation space.

The above-mentioned recording device has a plurality of recording sheet conveyance paths inside the device, and by operating buttons on the operation panel, ``continuous paper'', r-cut sheet manual feed, I'ASF, etc.
It is configured so that paper feed J can be selected, and is configured so that when an operation other than continuous paper J is performed, the fan hold paper is placed in a waiting position at a position where it does not interfere with cut sheet feeding.

An example of the recording apparatus configured as described above will be explained with reference to FIGS. 7 and 8.

The ASF 50 is arranged at the rear of the apparatus main body and diagonally above. Then, the recording sheet fed by the separation roller 50a or 50b of the ASF 50 passes through the registration roller 50c and passes through the guide plate 51 and the conveyance path separation plate 5.
2, and the transport roller 53a and the front pinch roller 5.
3b and is conveyed, passing between the guy I/plate 51 and the paper pan 55 forming the U-shaped conveyance path 54, and then being held again between the conveyance roller 53a and the rear pinch roller 53c, and the paper pressing plate 56 toward the platen 57 and conveyed to the recording position. and recording head 5
After forming a predetermined record by 8, the paper ejection roller 59a
The paper is ejected by 59b.

Here, to explain the position of the rear pinch roller 53c, by arranging the roller 53c so as to be in pressure contact with the conveying roller 53a at a position as close as possible to the recording head 58, the rear end of the recording sheet becomes printable. This has the effect of reducing blank space.

For this reason, the rear pinch roller 53c is arranged at a position overlapping the paper press plate 56, and therefore the paper press plate 56 is overlapped with the rear pinch roller 53c.
It is configured to protrude from a window 56a formed in 6.

Further, when conveying fan-hold paper, the fan-hold paper is pushed between the paper pan 55 and the conveyance path separating plate 52 by the tractor 60, and thereafter conveyed along the same conveyance path as the cut sheet described above. At this time, the 8th
As shown in the figure, the front pinch roller 53b and the rear pinch roller 5
3c is separated from the conveyance roller 53a, thereby preventing jamming due to the difference in conveyance speed between the tractor 60 and the conveyance roller 53a without applying the conveyance force of the conveyance roller 53a to the fan-held paper.

Further, a manual feed port 61 is formed between a front upper guide 62 provided at the front of the apparatus and a paper pan 55, and a recording sheet is inserted into this manual feed port 61 and fed between the conveyance roller 53a and the rear pinch roller 53c. It is possible to record in the same manner as described above.

Therefore, if the fan-hold paper is kept waiting at a position where it will not interfere with the conveyance path of other recording sheets, that is, between the conveyance path separating plate 52 and the paper pan 55, this fan-hold paper can be removed from the tractor 60. This makes it possible to use other conveyance paths. Furthermore, even when using fanboard paper again, there is no need to remove ASF50.

<Problems to be Solved by the Invention> However, in the conventional recording apparatus described above, a window 56a is formed in the longitudinal direction of the paper pressing plate 56 in order to reduce the trailing edge margin of the recording sheet. Since the rear pinch roller 53c is configured to protrude and retract from the window 56a, when the pinch rollers 53b and 53c are separated from the conveyance roller 53a when recording on fan hold paper, the conveyed fan hold paper When the tip of the fan board passes through the U-shaped conveyance path 54 and comes out near the rear pinch roller 53c, it may get caught on the window 56a and cause a jam, or when the fan board paper is returned to the standby position, the fan hold There is a risk that the paper perforations may catch on the conveyance path branching protrusion (55a in FIG. 8) formed on the paper pan 55, causing a jam.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and to provide a recording apparatus that can smoothly convey even fan-held paper.

<Means for Solving the Problems> A typical means according to the present invention for solving the above problems includes a recording means for recording an image on a recording medium, and a means for conveying the recording medium to the recording means. a conveying rotary body, a conveying path for a recording medium configured in a U-shape along the outer periphery of the conveying rotary body, and a recording medium disposed on the downstream side of the conveying path facing the conveying rotary body and conveyed to a recording means. a pressing member for pressing a recording medium onto a conveying rotary body; and a pressing rotary body disposed downstream of the conveying path and configured to be able to come into contact with and separate from the conveying rotary body; It is characterized by the formation of protrusions on the side of its body.

<Function> In the above means, since the protrusion is formed on the side of the conveying rotary body of the pressing member, the leading edge of the fan-hold paper conveyed through the U-shaped conveying path is guided by the protrusion, and the tip of the fan-hold paper is guided by the protrusion, and the pressing member There is no direct contact with the formed window. Also, when the fan-hold paper is returned to the standby position, the fan-hold paper is guided by the protrusion and does not come into contact with the protrusion for branching the transport path.

<Embodiment> Next, an embodiment of the present invention will be described in which the above means is applied to a serial bubble jet recording method.

FIG. 1 is an overall perspective explanatory view of the recording apparatus, and FIG. 2 is a schematic side view.

(Overall Configuration) First, the overall configuration of the apparatus will be described. A recording sheet 1, such as a paper sheet or fanboard paper, serving as a recording medium is conveyed by a sheet conveying means 2. At this time, the recording sheet 1 is pressed against a conveying roller 2a, which is a conveying rotating body, by a sheet pressing member 3, which is a pressing member, and is configured so as not to lift off from the platen 4. A protrusion is formed on the sheet pressing member 3 to prevent jamming when recording is performed using fan-hold paper.

When the recording sheet 1 is conveyed, the carriage 5 is reciprocated along the guide rail 6, and the recording head 7 as a recording means is driven to record an image on the recording sheet l-1. 1 is discharged upward by a discharge means 8.

Here, the sheet conveying means 2, the ejecting means 8, etc. are driven by a drive motor 9a, which is the same drive source, and the drive means 9 having this drive motor 9a is located at one end of the recording apparatus (see FIG. 1). located on the left).

An ink cartridge 7'' for supplying ink to the recording head 7 and a recovery device 10 for removing ink stuck to the recording head are disposed at one end of the recording apparatus.

Further, the carriage 5 reciprocates by receiving the driving force of a drive motor (not shown) through a transmission means (pulley, timing belt, not shown).

Next, the configuration of each part of the recording apparatus will be explained in detail.

(Sheet Conveying Means) The sheet conveying means 2 is for conveying the recording sheet 1 to the recording position, and it is for conveying the recording sheet 1 to the recording position, and is capable of conveying a recording sheet fed from ASFII as a feeding means, a recording sheet manually fed from the manual feed port 12, or a recording sheet fed from the ASFII as a feeding means. Tractor 1 for transporting fan hold paper
The fan board paper serving as the recording sheet 1 fed from the recording sheet 3 is conveyed.

The sheet conveyance means 2 in this embodiment includes conveyance rollers 2a.
is driven to rotate in the direction of arrow a in FIG. 2, and the recording sheet 1 is conveyed by a front pinch roller 2b and a rear pinch roller 2b2, which rotate in accordance with this. and the front pinch roller 2b and the rear pinch roller 2b.
2 is configured as a press-contact rotating body.

The conveyance roller 2a has a roller shaft 2a+ whose both ends are rotatably supported by the left and right side walls 14a and 14b of the device frame.
It is installed by dividing it into multiple parts. The reason why the conveyance roller 2a is divided into parts as described above is to reduce the number of rubber members that constitute the roller 2a, thereby reducing costs and reducing the weight of the apparatus.

A conveyance gear 2a2 is attached to one axial end of the roller shaft 2a+, and driving force is transmitted from the drive motor 9a.

Each binge roller 2bz 2bz has a swingable pinch roller holder 2tl+1. Supported by 2b4,
The said conveyance roller 2a by 2CI, 2C, z
The pinch roller holders 2b+, 2b are pressed against the surfaces of the pinch roller holders 2b+, 2b, and rotated as a result of the rotation of the conveyance roller 2a.
D-cut release shaft 2 bs, 2 in contact with 4
By selectively rotating ba, the pressure contact state with respect to the conveyance roller 2a is released, and a predetermined gap is formed between the conveyance roller 2a and each pinch roller 2b, 2b2.

Therefore, when using a cut sheet as the recording sheet 1, each pinch roller 2b+, 2
By bringing bz into pressure contact, the recording sheet 1 is nipped between the rotating conveyance roller 2a and the pinch roller 2b2b2, thereby imparting conveyance force, and when fan-hold paper is used as the recording sheet 1, the conveyance roller 2a
By releasing the pressure contact of the pinch rollers 2b, 2b2, the recording sheet 1 is prevented from being nipped between the conveyance roller 2a and the pinch rollers 2b+2bz.
It is transported by a tractor 13.

Here, the front pinch roller 2bz is located below and close to the recording head 7, and is configured to be able to emerge and retract from a window 3a formed in the sheet pressing member 3, which will be described later.

Further, below the conveyance roller 2a, as shown in FIG. 2, a paper pan 2d curved along the circumferential surface of the conveyance roller 2a is attached. And the paper pan 2
d extends to the manual feed port 12 and is configured to serve as a lower guide for the manually fed recording sheet 1.

Further, upper guide plates 15 and 16 are attached above the paper pan 2d at a predetermined interval, and constitute a general feeding path for the recording sheet 1. In particular, the upper guide plate 16 Together with the paper pan 2d, this constitutes a U-shaped conveyance path 2e for conveying the recording sheet 1 in a U-shape.

Further, a conveyance path frame M plate 17 is provided between the paper pan 2d and the upper guide plate 16, and a conveyance path for fan-hold paper fed from the tractor 13 and recording sheets fed from the ASFII. 1 transport path.

(Press member) The sheet pressing member 3 serving as a pressing member is used to prevent the recording sheet 1 transported by the transport means 2 from lifting off from the platen 4 by pressing the recording sheet 1 against the transport roller 2a. It is.

As shown in FIG. 1, this sheet pressing member 3 is composed of a single plate-like member wider than the moving range of the carriage 5 so as to hold down the entire width of the recording sheet 1, and this sheet holding member 3 is made of a plate-like member that is wider than the movement range of the carriage 5, and this is used to hold the entire width of the recording sheet 1. is in pressure contact with each conveyance roller 2a.

The tip of the sheet pressing member 3 is located below the recording position by the recording head 7, and the tip of the sheet pressing member 3 is located below the recording position by the recording head 7, and
is pressed against the conveyance roller 2a by the member 3.

As a result, the recording sheet 1 at the recording position is placed on the platen 4.
It will no longer float up from the surface.

Further, the sheet pressing member 3 is configured such that the leading end of the carriage 5 is always in contact with the sheet pressing member 3, as will be described later.

FIG. 3 is an explanatory diagram showing the relationship between the rear pinch roller 2bz and the sheet pressing member 3.

As shown in the figure, a window 3a corresponding to the size and swing range of the roller 2bz is formed in a portion of the sheet pressing member 3 that overlaps with the rear pinch roller 2bz. Further, a portion of the sheet pressing member 3 corresponding to the window 3a is bent so as to protrude toward the conveying roller 2a, thereby forming a protrusion 3b. For this reason, upper guide 1
After the leading edge of the recording sheet 1 or the fan-hold paper conveyed between the paper pan 2d and the paper pan 2d passes through the branching point 2a with the manual feeding path, it comes into contact with the protrusion 3b and is rotated in the conveying direction by the protrusion 3b. is guided to the pressure contact portion between the sheet pressing member 3 and the conveyance roller 2a. Therefore,
There is no possibility that the leading edge of the recording sheet 1 or the fan board paper will get caught in the window 3a formed in the sheet pressing member 3 and cause a jam.

(Recording Apparatus) The recording means records an image on the recording sheet 1 conveyed by the conveyance means 2. The recording means in this embodiment includes a recording head 7 mounted on a carriage 5, and is configured to perform recording by serially scanning the recording head 7.

Both ends of the carriage 5 are slidably attached to guide rules 6 having a circular cross section fixed to left and right side walls 14a and 14b. Further, the carriage 5 has a guide rail 6.
The front side of the carriage 5, that is, the side facing the recording sheet 1, is mounted so that the front side of the carriage 5, that is, the side facing the recording sheet 1, is downwardly disposed. 1-
The front end of the ridge 5 is configured so as to come into contact with the seat I/pressing member 3.

Thereby, the distance between the recording head 7 mounted on the carriage 5 and the recording sheet 1 is always maintained constant.

An example of a recording head suitably used in this apparatus is an inksheet head. The inkjet recording method is described below.
An orifice (liquid ejection opening) for ejecting the ink liquid as flying droplets, a liquid flow path communicating with the orifice, and a part of the liquid flow path provided to allow the ink liquid in the flow path to eject. and ejection energy generating means for providing ejection energy for forming flying droplets. and driving the ejection energy generating means according to the image signal,
An image is recorded by ejecting ink droplets.

Examples of the ejection energy generation means include a method of using pressure energy generation means such as an electromechanical transducer such as a piezo element, and a method of generating electromagnetic energy by irradiating and absorbing electromagnetic waves such as a laser onto the ink liquid to generate flying droplets. There is a method using a thermal energy generating means such as an electrothermal converter or a method using a thermal energy generating means such as an electrothermal converter. Among these methods, a method using a thermal energy generating means such as an electrothermal converter is preferable because it allows the orifices to be arranged in high density and the recording head can be made compact.

In this embodiment, the Hubble Jet i recording method, which is one of the inkjet recording methods described above, is used as a recording means.

FIG. 4 is an explanatory diagram of the configuration of the recording jet 7 constituting the recording means, and FIGS. 5(a) to (g) are explanatory diagrams of the hepple jet recording principle.

In FIG. 4, 7a is a heater boat, in which an electrothermal converter (discharge heater) 7b and an electrode 7c made of aluminum or the like for supplying electric power to this are formed and arranged on a silicon substrate. . A top plate 7C having a partition wall for partitioning a recording liquid channel (nozzle) 7d is adhered to the heater boat 7a. Further, as shown in FIG. 1, the recording head 7 is located on the left side of the device.
An ink cartridge 7f for supplying ink to is replaceably attached.

Ink supplied from the ink cartridge 1f through a conduit (not shown) is filled into a common liquid chamber 7g in the recording head door from a supply lower e+ provided on the top plate 7e, and from this common liquid chamber 7g into each nozzle 7d. guided by. Ink discharge ports (orifices) 7d1 are formed in these nozzles 7d, and the orifices 7d1 face the recording sheet 1 of the recording head 7 at a predetermined pitch in the sheet conveyance direction (vertical direction in FIG. 1). It is formed of.

Here, the ink flying principle in the bubble jet recording method is explained with reference to FIGS. 5(a) to 11(b). The surface tension and external pressure of the filled ink 18 are at the level f&i L on the orifice surface.If the ink 18 is to be ejected in this state, the electrothermal converter 7b in the nozzle 7d is energized, and the inside of the nozzle 7d is This causes the ink to rapidly rise in temperature beyond nucleate boiling.

Then, as shown in FIG. 5 (bl), the electrothermal converter 7b
The ink adjacent to the heated part is heated to produce microbubbles, and the ink in the heated part is vaporized to cause film boiling, and the fifth
As shown in Figure (C), the bubbles 19 grow rapidly.

When the bubble 19 grows to its maximum size as shown in FIG. 5(d), an ink droplet is forced out from the orifice surface in the nozzle 7d. When the electricity supply to the electrothermal converter 7b is finished, the grown bubble 19 is cooled by the ink 14 in the nozzle 7d and contracts, as shown in FIG. 5(e). The growth and contraction of this bubble causes ink droplets to fly out of the orifice. Furthermore, as shown in FIG. 5(f), the ink contacts the surface of the electrothermal converter 7b and is rapidly cooled, causing bubbles 19.
disappears or shrinks to an almost negligible volume. When the bubble 19 contracts, ink is supplied from the common liquid chamber 7g into the nozzle 7d by capillary action, as shown in FIG. 5(g), in preparation for the next energization.

Therefore, an ink image is recorded on the recording sheet 1-1 by energizing the electrothermal transducer 7b in synchronization with the movement of the carriage 5 in accordance with the image signal.

As shown in the first figure, a recovery device 10 is provided at the left end of the movement range of the carriage 5.

The recovery device 10 has a function of preventing ink near the orifice surface of the recording head 7 from drying and solidifying thereby by covering the ink ejection surface of the recording head 7 during non-recording times.

A pump (not shown) is connected to the recovery device 10, and the pump is driven to prevent ink from being ejected incorrectly or removed, and the ink can be suctioned from the orifice surface by its suction force to perform the recovery process. It has become.

(Discharging means) The discharging means 8 is the recording sheet 1 recorded by the recording means 7.
It is for discharging.

As shown in FIGS. 1 and 2, this configuration is composed of a discharge roller 8a and a discharge pinch roller 8b in contact with the discharge roller 8a. A discharge gear 8d is installed at the end of the roller shaft 8c of the discharge roller 8a, and when the driving force of the drive motor 9a is transmitted to the discharge gear 8d, the driving force is transmitted to the discharge roller 8a. Then, the roller 8a rotates, and the recording sheet 1 is ejected by the cooperative action of the ejection roller 8a and the ejection pinch roller 8b.

Here, in order to apply tension to the recording sheet 1 on the platen 4, the ejection roller 8a has a circumferential speed that is approximately 1% to 10% faster than the circumferential speed of the conveyance roller 2a.

Next, an explanation will be given of the operation when the fan-hold paper is conveyed by the recording apparatus configured as described above.

The fan-hold paper fed from the tractor 13 passes between the paper pan 2d and the conveyance path separation plate 17, passes through the front pinch roller 2b which is in a separated state, and is transferred to the U-shaped 1 m conveyance path 2e.
conveyed along the When the leading edge of the fan-held paper passes the branch point 2a of the paper pan 2d with the manual feeding path, the leading edge of the fan-held paper tends to move outward (in the direction away from the U-shaped transport path 2e) due to its own stiffness. However, it comes into contact with the slope of a protrusion 3b formed on the sheet pressing member 3, and is guided by the protrusion 3b toward the conveying roller 2a. Therefore, from now on, the leading edge of the fan-held paper is guided to the pressure contact portion between the conveying roller 2a and the sheet pressing member 3, regardless of the window 3a formed in the sheet pressing member 3.

Next, an explanation will be given of the operation when returning the fan-holed paper, which is in the seven-fold state in advance, to the standby position.

When the perforation part (particularly the mountain fold part) of the fan board paper passes through the pressure contact part of the conveyance roller 2a and the sheet holding member 3 and is further returned, the perforation part becomes the protrusion 3b formed on the sheet holding member 3. Since it is pressed down to the conveying roller 2a side by
It is returned along the U-shaped conveyance path 2e. When the leading edge of the fan-holed paper is returned to between the conveyance path separation plate 17 and the paper pan 2d, it enters a standby state and the operation ends.

In the above-mentioned embodiment, the protrusions 3b are formed by bending the entire width of the sheet pressing member 3 in the width direction. However, it goes without saying that a protrusion member having a triangular protrusion may be attached to the flat sheet pressing member 3 at a position corresponding to the window 3a.

Further, the same effect can be obtained by forming a protrusion in the area of the window 3a by squeeze molding or the like.

[Other Examples] (Recording Means) In addition to the above-mentioned combination of the discharge port and the liquid path electrothermal converter, the recording means has a structure according to US Pat. No. Specification, JP-A-1975
What is disclosed in 9-123670 etc. can also be adopted.

Further, although the above-described recording means is an example in which ink is supplied to the recording head from the ink cartridge 7f installed in the recording apparatus, an ink storage chamber is provided in the recording head, and the ink in the ink storage chamber is It is also possible to use a disposable type recording head that is replaced when the recording head runs out.

Furthermore, although the above-described embodiments have exemplified a serial type recording system, the present invention is not limited to the serial type, and can also be applied to a line type recording system.

Here, we will briefly explain the line-type Hufflejet recording system that can perform full-color recording.

In FIG. 6, the recording sheet 1-1 includes an upstream conveyance roller 20a which is driven and rotated, pinch rollers 20b and 20c which are in pressure contact with this and driven to rotate, and a downstream conveyance roller 21a which is driven and rotated and which are in pressure contact with this. It is configured such that it can be conveyed in the direction of arrow X by a pinch roller 21b that rotates as a result of rotation.

Between the upstream and downstream transport rollers 20a and 21c, there are four recording heads 22a and 2 facing the recording sheet 1.
2b, 22c, and 22d are arranged in order from the upstream side to the downstream side in the sheet conveyance direction. The recording heads 22a to 22d are line-type bubble jet recording heads capable of recording over the entire width of the recording seam 1-1.
Each recording spatula 22a to 22d is configured to be supplied with ink from an ink cartridge (not shown).The recording head 22a is supplied with black ink, the recording head 22b is supplied with yellow ink, and the recording head 22c is supplied with ink.
Magenta ink is supplied to the recording head 22d, and cyan ink is supplied to the recording head 22d, and each of the recording heads 22a to 22d is driven based on a color signal corresponding to the supplied ink color, so that ink droplets are ejected through nozzles. It is configured.

Therefore, while conveying the recording sheet 1 in the direction of the arrow χ,
Full-color recording can be performed on the recording sheet 1 by driving each of the recording heads 22a to 22d with the same amount of IU during the conveyance.

In addition, in FIG. 6, when there is a nozzle below the recording head 22a that is not recording or is not used, the ink discharge is recovered by removing thickened ink or stuck ink from the ink discharge port. A recovery system 23 is provided for processing.

When performing the recovery process, this recovery system 23 can be arranged to face each nozzle of each of the recording heads '22a to 22d instead of the recording sheet 1. Note that the recording heads 22a~
22d performs preheating at an appropriate timing, so the number of activations of the ejection recovery process is reduced.

Furthermore, the recording means of the present invention need not be limited to the bubble jet recording method described above. For example, there is a so-called thermal transfer recording method in which an ink sheet coated with heat-melting ink is heated in accordance with an image signal and the melted ink is transferred to a recording sheet 1, and a recording sheet 1 that develops color by heat is heated in accordance with an image signal. Various recording methods can be employed, such as a so-called thermal recording method and a so-called wire dot recording method in which recording is performed by striking an ink ribbon with a wire according to an image signal.

Therefore, the recording head is not limited to the above-mentioned bubble shed head, and for example, a thermal head, a wire dot head, a daisy boil head F, etc. can be used.

The recording device may be used as an image output terminal for information processing equipment such as a computer, and may also be applied to a copying device combined with a reader or the like, or even a facsimile device having a sending/receiving function. It is possible.

<Effects of the Invention> As described above, in the present invention, in the above-mentioned means, since the suppression member has a protrusion that protrudes toward the conveying rotor, the recording sheet is pushed out toward the conveying rotor by the protruding portion. Become. Therefore, when recording using continuous paper, it is possible to prevent jams that may occur due to the paper being caught in the window formed in the pressing member. This has effects such as being able to prevent the occurrence of large jams caused by the eyes being caught at the junction with the manual feed conveyance path.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a serial bubble jet recording device according to an embodiment of the present invention, FIG. 2 is a cross-sectional side view, and FIG. Figure 4 is an explanatory diagram of the configuration of the recording head, Figure 5 (a)
-(g) are explanatory diagrams of the principle of bubble jet recording, FIG. 6 is an explanatory diagram of the configuration of line type bubble jet I recording, and FIGS. 7 and 8 are explanatory diagrams of the prior art. 1 is a recording sheet, 2 is a sheet conveyance means, 2a is a conveyance roller, 2a is a roller shaft, 2b+, 2b2 is a pinch roller, 2 b3. 2 b4 is roller holder, 2 b5
2b6 is a release shaft, 2C1 and 2C2 are wings, 2d is a paper pan, branch point 2d, 2e is a U-shaped conveyance path, 3 is a sheet holding member, 3a is a window, 3b is a protrusion, 4 is a platen, and 5 is a carriage , 6 is a guide rail, 7 is a recording head, 7a is a heater board, 7b is an electrothermal converter, 7C is an electrode, 7d is a nozzle, 7d is an orifice, 7e is a top plate, 7e is a supply port, 7f is an ink Cartridge, 7g is a common liquid chamber, 8 is a discharge means, 8a is a discharge roller, 8b is a discharge pinch roller, 8c is a roller shaft, 8d is a discharge gear, 9
a is the drive motor, 10 is the recovery device, ]1 is ASF, 1
2 is a manual feeding port, 13 is a tractor, 14a is a left side wall of the frame, 14b is a right side wall of a frame, 15.16 is an upper guide plate, 17 is a transport path separation plate, 18 is ink, 19 is an air bubble, 2
0a is an upstream conveyance roller, 20b and 20C are pinch rollers, 21a is a downstream conveyance roller, 21b is a pinch roller, 22a to 22d are recording heads, and 23 is a recovery means.

Claims (4)

[Claims] (1) A recording means for recording an image on a recording medium, a conveying rotary body for conveying the recording medium to the recording means, and a recording medium configured in a U-shape along the outer periphery of the conveying rotary body. a pressing member disposed on the downstream side of the conveying path facing the conveying rotary body and for pressing the recording medium conveyed to the recording means against the conveying rotary body; and a pressing member on the downstream side of the conveying path. What is claimed is: 1. A recording device comprising: a press-contact rotating body disposed and configured to be able to come into contact with and separate from a conveying rotary body; and a projection protruding toward the conveying rotary body is formed on the pressing member. (2) The recording apparatus according to claim 1, wherein the recording apparatus is an inkjet recording system in which the recording means performs recording by ejecting ink in response to a signal. (3) The recording apparatus according to claim 2, wherein the recording apparatus is an inkjet recording system in which the recording means uses thermal energy to eject ink to perform recording. (4) In the recording device, the recording means energizes the electrothermal transducer in response to a signal, and the ink is ejected from the ejection port by the growth of bubbles generated by heating exceeding film boiling by the electrothermal transducer, thereby recording. 4. The recording apparatus according to claim 3, which is a bubble jet recording method.