JP4269766B2 - Recording apparatus and recording head - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording apparatus and a recording head that include a platen between a front roller and a rear roller and a recording head facing the platen, and includes the recording head, a side, and a paper detection sensor.
[0002]
[Prior art]
FIG. 6 shows a conventional recording apparatus (Patent Document 1). This recording apparatus is a so-called passbook type dot impact printer, in which a magnetic head 100 has a magnetic recording / reproducing apparatus 101 for recording and reproducing magnetic information on a magnetic recording medium (for example, a magnetic stripe), and a recording wire By the protruding operation, the recording head 102 records an image including characters on an image recording medium (for example, a recording paper such as a passbook) provided with the magnetic stripe. More specifically, the platen 105 is provided between the front roller 103 and the rear roller 104, and the recording head 102 facing the platen 105. The recording head 102 is provided with a sheet detection sensor 106 side by side on the rear roller 104 side. On the rear roller 104 side, a leading end portion 107A extends to the recording head 102 side, and a guide member 107 is provided for guiding the leading end of the recording paper including the passbook and copy paper that has passed through the recording head 102 to the rear roller 104. Composed.
[0003]
Such printers are mainly used in financial institutions and the like, and can record images not only on passbooks but also on single sheets and copy sheets.
[0004]
By the way, when the dot impact printer is used, for example, when an image is recorded across the spread pages of the passbook, the recording head 102 is scanned across the step between the spread pages. In order to make the transfer between the steps smooth, conventionally, a rolling roller 108 that rolls on a passbook (hereinafter referred to as recording paper) is provided in the recording head 102. In the printer having this configuration, when a recording sheet is inserted, first, the carriage 109 that supports the recording head 102 is scanned, and the recording head 102 is retracted to a position that is out of the recording sheet insertion area. A general procedure is to scan the carriage 109 after the recording paper is inserted and start recording an image by the recording head 102.
[0005]
[Patent Document 1]
JP-A-6-297798 [0006]
[Problems to be solved by the invention]
However, when the recording paper is inserted with the recording head retracted from the recording paper insertion area as in the prior art, the insertion area X does not have the recording head 102 as shown in FIG. Therefore, it becomes difficult to guide the front end A of the recording paper that has passed over the front roller 103 to the rear roller 104 side. Since the conventional guide member 107 is arranged on the downstream side of the recording head 102 and the sheet detection sensor 106 provided side by side with the recording head 102, the leading end portion 107A of the guide member 107 is located at a position considerably away from the recording head 102. It is in.
[0007]
As shown in FIG. 7, when the leading end A of the recording sheet is curled greatly, if the leading end A is accurately guided to the rear roller 104 side, the height of the leading end portion 107A of the guide member 107 is increased as shown in FIG. The height H should be as high as possible, and the distance L away from the recording head 102 should be as small as possible.
[0008]
An object of the present invention has been made in consideration of the above-described circumstances, and a recording apparatus capable of accurately guiding the leading edge to the rear roller side even when the leading edge of the recording paper is largely curled. And providing a recording head.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 has a platen for supporting the recording paper between a front roller and a rear roller for conveying the recording paper, and a recording head facing the platen. A paper detection sensor that detects whether the recording paper has been inserted; a front end of the recording paper including a passbook and a copy paper that has passed through the recording head, with a leading end extending toward the recording head in the vicinity of the rear roller; In the recording apparatus having a guide member that guides the rear roller, the sheet detection sensor is cantilevered by the recording head or a carriage that supports the recording head, and is formed in a space formed by the cantilever support. , by extending the front end portion of the guide member, the distal portion in a plane orthogonal to the sheet conveying direction was the paper detecting sensor overlaps And it is characterized in and.
[0011]
According to a second aspect of the present invention, in the first aspect , when the carriage is scanned, the paper detection sensor moves between the leading end of the guide member and the recording paper. It is.
[0013]
According to a third aspect of the present invention, in the first or second aspect of the invention, the recording head is retracted to a position outside the recording paper insertion area, and the recording paper is inserted in this state.
[0014]
The invention according to claim 4 includes a plurality of recording wires, a side-by-side and a paper detection sensor, the paper detection sensor is cantilevered by the recording head, and the recording head is formed in a space formed by the cantilever support. The leading end portion of the guide member that guides the leading end of the recording paper including the passbook and copy paper that has passed through the rear roller can be extended.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0016]
FIG. 1 is an overall perspective view showing a passbook type dot impact printer provided with a magnetic recording / reproducing apparatus, and FIG. 2 is a side sectional view showing the printer of FIG.
[0017]
The printer 10 as the recording apparatus shown in FIGS. 1 and 2 records dots by hitting a large number of recording wires of the recording head 12 (FIG. 2) onto an image recording sheet via an ink ribbon (not shown). By doing so, it is a passbook type dot impact printer that records an image including characters, and is integrally equipped with a magnetic recording / reproducing apparatus 11. The image recording paper is usually a passbook, copy paper, single sheet, etc. used in financial institutions, etc., and the magnetic recording / reproducing apparatus 11 is attached to a magnetic stripe as a magnetic recording paper attached to the passbook. Records magnetic information or reads and reproduces the recorded magnetic information.
[0018]
As shown in FIGS. 1 and 2, the printer 10 includes a carriage 15, the recording head 12, a transport device (front roller and rear roller), a main body frame including a left side frame 13, a right side frame 14, and a base frame. The magnetic recording / reproducing apparatus 11 and a control board unit as a control device are configured.
[0019]
As shown in FIG. 2, the transport device includes a front roller FR and a rear roller RR. The front roller FR is composed of a pair of upper and lower drive rollers 17A and a driven roller 18A, and the rear roller RR is also a pair of upper and lower drive rollers. 17B and a driven roller 18B, which are arranged one by one on the upstream side and the downstream side of the recording head 12, and these two sets of driving roller 17 and driven roller 18 are placed on a conveyance guide 19 on a recording sheet. The recording paper is conveyed in the sub-scanning direction (arrow A direction). Note that the driven roller 18 may be a driving roller in the same manner as the driving roller 17.
[0020]
On the driven roller 18B side of the rear roller RR, a leading end portion 29A extends to the recording head 12 side and guides the leading end of the recording paper including the passbook and copy paper that has passed through the recording head 12 to the rear roller RR. 29 is provided.
[0021]
The carriage 15 carries the recording head 12, and the recording head 12 travels along the platen 49 in the main scanning direction (direction orthogonal to the arrow A) rightward or leftward. The main scanning direction is a direction orthogonal to the conveyance direction (sub-scanning direction) of the recording paper or the like by the conveyance device.
[0022]
The platen 49 is elastically supported by an urging spring (not shown) so as to be movable in a direction in which the platen 49 contacts and separates from the recording head 12. As a result, when a passbook having a different thickness is transported between the recording head 12 and the platen 49, the platen 49 moves away from the recording head 12 in the thickness direction of the passbook, etc. A constant platen gap is ensured between the recording sheet and the surface (printing surface) of the recording paper or the like.
[0023]
The recording head 12 includes a large number of recording wires (not shown), and an ink ribbon (not shown) is positioned between the recording head 12 and the platen 49 in front of the recording wires in the protruding direction. While the recording head 12 travels with the carriage in the main scanning direction, the recording wire protrudes and strikes the ink ribbon, and the ink on the ink ribbon is attached to a recording sheet or the like located below the recording head 12. Thus, an image including characters is recorded on the recording paper or the like.
[0024]
By the way, using this dot impact printer 10, for example, an image may be recorded across the spread pages of the passbook. In this case, the bankbook is inserted in the direction of the arrow A (FIG. 2) with respect to the dot impact printer 10 from the front end side of the bankbook, for example. When an image is recorded across the spread pages of the passbook, the recording head 12 is scanned over the step between the spread pages. In order to make the transfer between the steps smooth, a rolling roller 31 that rolls on the passbook is provided in the recording head 12. In a printer having this configuration, when a recording sheet such as a passbook is inserted, in order to prevent jamming of the recording sheet, first, the carriage 15 that supports the recording head 12 is scanned to move the recording head 12 from the recording sheet insertion area. After the recording paper is inserted to a predetermined position, the carriage 15 is scanned and the recording of the image by the recording head 12 is started. Reference numeral 45 denotes a shutter for aligning recording sheets.
[0025]
When the recording sheet is inserted to a predetermined position, the recording sheet is inserted so as to push away the film 33 shown in FIG. Therefore, at the predetermined position, the film 33 is placed on the recording paper, and the above-described rolling roller 31 is rolled on the film 33 in order to smoothly transfer between the steps. According to this, since the rolling roller 31 contacts the recording surface of the recording paper via the film 33, the recording surface of the recording paper does not become concave or dirty.
[0026]
FIG. 3 is a cross-sectional view showing the recording head 12 mounted on the carriage 15. On the rear roller 17B side of the recording head 12, a paper detection sensor 35 for detecting the edge of the recording paper by the reflected light and the nose 12A is provided.
[0027]
4A is a perspective view showing the recording head 12 as seen from the nose 12A side, FIG. 4B is a cross-sectional view taken along the line BB in FIG. 4A, and FIG. 4C is a cross-sectional view taken along the line CC in FIG.
[0028]
As shown in FIGS. 4A to 4C, the paper detection sensor 35 is supported in a so-called cantilever manner with respect to a support portion 12 </ b> B that integrally extends from the recording head 12. A space 37 of an appropriate size is formed between 35 </ b> A and the lower surface of the carriage 15 (upside down in FIG. 4A) 15 </ b> A.
[0029]
As shown in FIG. 3, the leading end portion 29A of the guide member 29 extends into the void 37, and the leading end portion 29A of the guiding member 29 is within the plane perpendicular to the paper transport direction. It overlaps with the sensor 35.
[0030]
Next, the operation of the embodiment will be described.
[0031]
In the printer 10, as described above, when a recording sheet is inserted, first, the carriage 15 that supports the recording head 12 is scanned to retract the recording head 12 to a position outside the recording sheet insertion area. In this retracted state, the recording head 12 does not exist in the insertion area X as shown in FIG.
[0032]
Next, a recording sheet is inserted into the printer 10. In this case, the recording paper is conveyed via the front roller FR. However, the leading edge A of the recording paper may generally be curled. When the curling becomes large, the leading edge A of the recording paper becomes the guide member. There is a risk that it will not reach the tip 29A of the 29 and get over it.
[0033]
In the present embodiment, a space 37 is formed between the upper surface 35A of the sheet detection sensor 35 and the lower surface 15A of the carriage 15, and the tip portion 29A of the guide member 29 described above extends into the space 37. ing. That is, the leading end portion 29A of the guide member 29 extends so much that it overlaps the paper detection sensor 35 in a plane orthogonal to the paper transport direction. Therefore, in FIG. 5, the height H of the tip portion 29A can be set higher than that of the conventional one (FIG. 8), and the distance L away from the recording head 12 is compared with the conventional one (FIG. 8). As shown in FIG. 5, the leading edge A of the recording sheet can be reliably captured and guided to the rear roller RR almost accurately, even for a recording sheet such as a passbook with a considerably large curl. .
[0034]
Next, when the recording paper is inserted to a predetermined position, the carriage 15 is scanned, and image recording by the recording head 12 is started. In this case, the film 33 is placed on the recording paper, and the above-described rolling roller 31 for smooth transfer between the steps is rolled on the film 33. During the scanning of the carriage 15, the paper detection sensor 35 detects the end of the recording paper facing the sensor 35, so that the front end portion 29 </ b> A of the guide member 29 is on the recording paper side, that is, the front end of the guide member 29. It moves between the section 29A and the recording paper.
[0035]
As another embodiment, if the tip portion 29A of the guide member 29 is formed of a transparent material member, the position of the paper detection sensor 35 is shifted upward in FIG. 3, and the paper detection sensor 35 is shifted in this position. It is possible to extend the leading end portion 29A of the guide member 29 so as to overlap the paper detection sensor 35 in a plane perpendicular to the paper conveyance direction. In this case, the paper detection sensor 35 receives the light reflected through the member made of a transparent material, and detects the recording paper.
[0036]
As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this. For example, the paper detection sensor 35 is fixed to the recording head 12, but is not limited thereto, and may be configured to be fixed to the carriage 15 that supports the recording head 12. Needless to say, the present invention is not limited to a passbook type dot impact printer, and can be applied to a general recording apparatus.
[0037]
【The invention's effect】
According to the present invention, even when the leading edge of the recording paper is greatly curled, the leading edge can be accurately guided to the rear roller side.
[Brief description of the drawings]
FIG. 1 is an overall perspective view showing a passbook type dot impact printer including a magnetic recording / reproducing apparatus according to an embodiment of the present invention.
FIG. 2 is a side sectional view showing the printer of FIG. 1;
FIG. 3 is a cross-sectional view showing a carriage on which a recording head is mounted.
4A is a perspective view showing a recording head according to the present embodiment, FIG. 4B is a sectional view taken along line BB of A, and C is a sectional view taken along line CC of A. FIG.
FIG. 5 is a cross-sectional view showing a front roller and a rear roller for explaining a procedure for guiding a curled recording sheet by a guide member.
FIG. 6 is an overall perspective view showing a conventional passbook type dot impact printer.
FIG. 7 is a view corresponding to FIG.
FIG. 8 is a view corresponding to FIG.
[Explanation of symbols]
10 Printer (recording device)
DESCRIPTION OF SYMBOLS 11 Magnetic recording / reproducing apparatus 12 Recording head 29 Guide member 29A End part 33 Film 31 Rolling roller 35 Paper detection sensor 37 Space 49 Platen FR Front roller RR Rear roller

Claims (4)

A platen for supporting the recording paper is provided between a front roller and a rear roller for conveying the recording paper, and a recording head facing the platen, and whether the recording paper is inserted sideways on the rear roller side of the recording head. A guide member that includes a paper detection sensor for detecting, and that guides the front end of the recording paper including the passbook and the copy paper that has passed through the recording head and has a leading end extending toward the recording head in the vicinity of the rear roller. The sheet detection sensor is cantilevered by the recording head or a carriage that supports the recording head, and the leading end portion of the guide member is placed in a space formed by the cantilever support. by extending, the tip end portion in a plane orthogonal to the sheet conveying direction, the recording instrumentation, characterized in that said by the paper detection sensor overlaps . Case of scanning the carriage, the paper detection sensor, recording apparatus according to claim 1, wherein the moving between the recording sheet and the leading end portion of the guide member. 3. The recording apparatus according to claim 1, wherein the recording head is retracted to a position outside the recording paper insertion area, and the recording paper is inserted in this state.   A plurality of recording wires, side and paper detection sensors, and the paper detection sensors are cantilevered by the recording head, and passbooks and copying papers that pass through the recording head in voids formed by the cantilever support. A recording head characterized in that a leading end portion of a guide member for guiding the leading end of a recording sheet including a rear roller can be extended.

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