JP3904071B2 - Recording medium positioning device and recording device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording medium positioning apparatus that regulates the position in the digit direction of a manually fed recording medium in a recording apparatus that performs recording on a recording medium, and a recording apparatus including the recording medium positioning apparatus.
[0002]
[Prior art]
In recent years, consumer inkjet printers (hereinafter referred to as “printers”) have been developed that can print by directly ejecting ink onto the label surface of an optical disk typified by a compact disk (hereinafter referred to as “optical disk”). Are on the market. In such a printer, the optical disc is smaller in size than a general printing paper and has high rigidity, so that it cannot be transported alone using the paper transport path of the printer. Therefore, it is set on a dedicated recording medium transport tray (hereinafter referred to as “transport tray”) made of a plate-shaped body and transported.
[0003]
FIG. 7 is a perspective view of the rear part of the printer according to the prior art for illustrating a method of supplying a transport tray in a conventional printer. In the figure, reference numeral 501 denotes a transport tray made of a plate-like body, and reference numeral 505 denotes a recess for setting an optical disk.
[0004]
In FIG. 7, an insertion port 502 of the transport tray 501 is provided at the rear of the printer main body 500, and a fixed guide 503 is provided at the left end of the insertion port 502. A movable guide 504 is provided on the side facing the fixed guide 503 across the transport tray 501. The movable guide 504 is provided so as to be slidable in the width direction (arrow direction in the figure) of the transport tray 501, and after the transport tray 501 is inserted, the movable guide 504 is aligned with the side edge of the transport tray 501. Accordingly, the position in the digit direction of the transport tray 501 is regulated.
[0005]
[Problems to be solved by the invention]
However, in the conventional printer in which the user manually operates the movable guide 504 in this way, depending on the user, the conveyance tray 501 may be inserted without operating the movable guide 504 and the printing operation may be started as it is. . In such a case, the position in the digit direction of the transport tray 501 is not fixed, and this causes a problem that printing is not appropriately performed on the optical disc set in the recess 505.
[0006]
Further, it is complicated to operate the movable guide 504 each time the transport tray 501 is inserted. In particular, as shown in FIG. 7, the transport tray 501 is inserted from the rear side of the printer. As a result, the operation of the movable guide 504 becomes more complicated.
[0007]
Accordingly, the present invention has been made in view of such a situation, and a problem thereof is a recording medium positioning apparatus that can easily and reliably regulate the position in the digit direction of the recording medium without requiring a special operation. There is to get.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, a recording medium positioning apparatus according to a first aspect of the present invention is provided with a support surface for supporting a recording medium from below, and fixed to one end side of the recording medium. A fixed guide that regulates an end position; and a recording medium detecting unit that detects passage of the recording medium by contacting the recording medium, and is manually fed in a recording apparatus that records on the recording medium. A recording medium positioning device that regulates a position in a digit direction of the recording medium, wherein the recording medium detecting means engages with a side end of the recording medium on a side facing the fixed guide across the recording medium. A contact portion provided to be able to change between an unengaged state and an engaged state to be engaged with a side edge of the recording medium, and a detection unit for detecting a change in the state of the contact portion, and the contact Is in the engaged state. Characterized in that it is configured so as to bias toward the fixed guide side edge of the recording medium Te.
[0009]
According to this aspect, the detection unit that detects the passage of the recording medium in contact with the recording medium is configured to urge the side end of the recording medium toward the fixed guide. The position in the digit direction is determined, so that no special operation is required, and the position in the digit direction of the recording medium can be easily regulated.
[0010]
That is, the recording medium positioning device has a recording medium detection unit that detects the passage of the recording medium in contact with the recording medium. Used as a means. Accordingly, it is possible to easily control the digit position of the recording medium by performing a proper recording operation without requiring any special operation, and at the same time, the cost of the recording medium can be reduced without providing a special component. It becomes possible to regulate the direction position.
[0011]
A recording medium positioning apparatus according to a second aspect of the present invention includes a support surface that supports the recording medium from below, and a fixed guide that is fixed to one end of the recording medium and regulates a side end position of the recording medium. A recording medium detecting means for detecting passage of the recording medium by contacting with the recording medium, and a digit direction position of the recording medium manually fed in a recording apparatus for recording on the recording medium A non-engaged state in which the recording medium detecting means is not engaged with a side end of the recording medium on a side facing the fixed guide across the recording medium; A contact portion provided to be able to change an engagement state engaged with a side end of the recording medium; and a detection unit configured to detect a change in the state of the contact portion. The side edge of the recording medium is By biased toward the fixed guide, the recording medium detecting means, characterized in that it is made so as serving as a restricting means for restricting the digit direction position of the recording medium.
[0012]
According to this aspect, the recording medium positioning apparatus has the recording medium detection unit that detects the passage of the recording medium in contact with the recording medium. Since the side end of the medium is urged toward the fixed guide, and thus the recording medium detecting means also serves as a restricting means for restricting the position in the digit direction of the recording medium. As in the invention according to the above aspect, no special operation is required, the position in the digit direction of the recording medium can be easily regulated and an appropriate recording operation can be executed, and no special component is provided separately. The position in the digit direction of the recording medium can be regulated at a low cost.
[0013]
The recording medium positioning device according to a third aspect of the present invention is the recording medium positioning apparatus according to the first or second aspect, wherein the contact portion is composed of a lever-like member that rotates in contact with the recording medium. Thus, it is possible to advance and retreat with respect to the feeding path of the recording medium.
According to this aspect, the contact portion is composed of a lever-like member that rotates in contact with the recording medium. By rotating, the contact portion can advance and retreat with respect to the feeding path of the recording medium. The contact portion can be configured with a simple structure and at a low cost.
[0014]
A recording medium positioning device according to a fourth aspect of the present invention includes the recording medium insertion port according to any one of the first to third aspects, wherein the frontage shape is substantially the same as the cross-sectional shape in the digit direction of the recording medium. It is characterized by that.
According to this aspect, the recording medium positioning device includes the recording medium insertion opening whose opening shape is substantially the same as the cross-sectional shape of the recording medium in the digit direction. It is possible to prevent operation mistakes such as a user inserting a recording medium at an incorrect position.
[0015]
A recording medium positioning apparatus according to a fifth aspect of the present invention is the recording medium positioning device according to any one of the first to fourth aspects, wherein the recording medium detecting means is provided to be slidable in the width direction of the recording medium. Features.
According to this aspect, since the recording medium detection means is provided so as to be slidable in the width direction of the recording medium, it is possible to cope with various sizes of the recording medium.
[0016]
A recording medium positioning apparatus according to a sixth aspect of the present invention is the recording medium positioning apparatus according to any one of the first to fourth aspects, wherein the recording medium detection means is provided slidable in the width direction of the recording medium, and A guide slope with which the leading end corner of the recording medium abuts and a biasing means for biasing the recording medium detecting means toward the fixed guide, and the leading end corner of the recording medium abuts against the guide slope. By contacting, the recording medium detecting means is configured to slide in the width direction in accordance with the recording media having different sizes.
According to this aspect, the recording medium detection means itself is provided so as to be slidable in the width direction of the recording medium, and when the recording medium is inserted, the leading end corner of the recording medium is placed on the guide slope. By abutting, the recording medium detecting means itself automatically moves in accordance with the width dimension of the recording medium, so that it can be used for various sizes of recording media without requiring any special operation. It becomes possible to do.
[0017]
A recording apparatus according to a seventh aspect of the present invention is a recording apparatus including a recording unit that performs recording on a recording material, and the recording medium positioning apparatus according to any one of the first to sixth aspects. It is characterized by having.
According to this aspect, the recording apparatus includes the recording medium positioning device described in any of the first to sixth aspects described above, and thus any one of the first to sixth aspects described above. It becomes possible to obtain the same effect as the invention described in 1.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an “inkjet recording apparatus” (hereinafter referred to as “printer”) 100 according to the present invention with a top cover removed, and FIG. 2 is a schematic sectional side view of the printer 100. It is. First, a schematic configuration of the printer 100 will be described with reference to FIGS. 1 and 2.
[0019]
In FIG. 1, the printer 100 includes a paper feeding device 1 at the rear, and the printing paper stacked and set on the paper feeding device 1 is placed one by one on the downstream side by the paper feeding device 1. Ink is ejected by an ink jet recording head (refer to FIG. 2; hereinafter referred to as “recording head”) 8 provided at the lower portion of the carriage 3, and after recording is performed, the ink is ejected to a front ejection stacker 5. Is done.
[0020]
The carriage 3 carries an ink cartridge 4 and supplies ink from the ink cartridge 4 to the recording head 8. The carriage 3 is inserted through carriage guide shafts 7 and 7 suspended between side frames 6 a and 6 b constituting the base of the printer 100, and is guided in the main scanning direction by the carriage guide shafts 7 and 7. The carriage 3 reciprocates in the main scanning direction by a driving unit (not shown).
[0021]
In FIG. 1, the lower right side is the “0 digit side” and the upper left side is the “80 digit side”, and the carriage 3 has the 0 digit side as the home position, and the recording head 8 of the 0 digit side is the home position. In response to a maintenance operation such as capping or head cleaning, a so-called flushing operation is performed to waste ink, so that the nozzle holes of the recording head 8 are not clogged on the 80th digit side.
[0022]
Next, the internal configuration (paper transport path) of the printer 100 will be described in detail with reference to FIG. In the following, the right side (back side of the printer) in FIG. 2 is referred to as “upstream side” (upstream side of the paper conveyance path), and the left side (front side of the printer) is “downstream side” (downstream side of the paper conveyance path). I will say.
[0023]
As described above, the printer 100 includes the paper feeding device 1 on the upstream side, the printing paper is accumulated and held on the hopper 9 in an inclined posture by the paper feeding device 1, and is bent by the paper feeding roller 10 one by one. A first feeding path (indicated by an arrow A) for feeding to the downstream side and an inflexible recording medium (a recording medium having high rigidity) that cannot use such a curved feeding path are substantially omitted from the rear of the apparatus. And a second feeding path (indicated by an arrow B) that is horizontally inserted. Hereinafter, description will be given from the upstream side along the first feeding path.
[0024]
The paper feeding device 1 includes a hopper 9 and deposits printing paper (not shown) on the hopper 9 in an inclined posture. The hopper 9 is provided so as to be rotatable about a rotation fulcrum 9a, and a tip portion of the hopper 9 is pressed against and separated from the paper feed roller 10 that is driven to rotate. The uppermost one of the stacked print sheets is fed downstream by the hopper 9 performing a pressure contact operation with the paper feed roller 10 and rotating the paper feed roller 10 in the pressure contact state. The paper feed roller 10 has a substantially D shape when viewed from the side, and is controlled so that its flat portion faces the paper P during printing (state of FIG. 2), thereby reducing the transport load.
[0025]
A paper guide 12 is provided below the paper supply roller 10, and the leading edge of the printing paper fed out from the paper supply device 1 is in contact with the paper guide 12 obliquely and is smoothly guided downstream. A conveyance roller 2 including a conveyance driving roller 2 a that is rotationally driven and a conveyance driven roller 2 b that is in pressure contact with the conveyance driving roller 2 a is provided downstream from the paper guide 12. Nipped and conveyed downstream at a constant pitch.
[0026]
On the other hand, a paper guide 11 is provided below the paper feeding device 1. A tray insertion portion 27 (see FIG. 3), which will be described later, is provided on the upper upstream side of the paper guide 11, and a later-described transfer tray 18 can be manually fed from the tray insertion portion 27. . The inserted transport tray 18 is nipped by the transport drive roller 2a and the transport driven roller 2b through the paper guide 12, and is transported downstream.
[0027]
The conveyance driven roller 2b is pivotally supported on the downstream side of the conveyance driven roller holder 14, and the conveyance driven roller holder 14 can be rotated clockwise and counterclockwise in FIG. 2 around a rotation shaft (not shown). And the conveyance driven roller 2b is always urged to rotate in a direction (counterclockwise in FIG. 2) in pressure contact with the conveyance driving roller 2a by a torsion coil spring (not shown). The transport driven roller 2b can take a position where it is pressed against the transport drive roller 2a and a position away from the transport drive roller 2a by an operation lever (not shown).
[0028]
Next, a paper detector 13 including a sensor main body 13a and a detector 13b for detecting the passage of the printing paper is disposed on the printing paper feed path from the paper feed roller 10 to the transport roller 2. ing. The detector 13b has a substantially "<" shape when viewed from the side, and is provided so as to be pivotable in the clockwise and counterclockwise directions in FIG. 2 around the pivot shaft 13c near the center thereof. The lower side is formed so as to smoothly come into contact with the leading edge of the printing paper traveling from the downstream to the upstream at a gentle angle.
[0029]
The sensor main body 13a located above the detector 13b includes a light emitting portion (not shown) and a light receiving portion (not shown) that receives light from the light emitting portion, and the upper side of the rotation axis 13c of the detector 13b is on the upper side. The rotation operation blocks and passes light from the light emitting portion toward the light receiving portion. Therefore, when the detector 13b is rotated so as to be pushed upward with the passage of the printing paper, the upper side of the detector 13b is detached from the sensor main body 13a. It is designed to detect the passage of.
[0030]
Subsequently, a platen 17 and a recording head 8 constituting a recording unit (recording unit) of the printer 100 are disposed downstream of the conveying roller 2 so as to face each other. The platen 17 is long in the main scanning direction (the front and back direction in FIG. 2), and the printing paper conveyed under the recording head 8 by the conveying roller 2 is supported from below by the platen 17. As described above, the recording head 8 is provided at the bottom of the carriage 3 on which the ink cartridge 4 (see FIG. 1) is mounted. The carriage 10 is guided in the main scanning direction while being guided by the carriage guide shafts 7 and 7 extending in the main scanning direction. And the printing is executed by the recording head 8.
[0031]
Next, downstream of the recording head 8 is a paper discharge portion of the printer 100, and a paper discharge drive roller 15a that is rotationally driven, and a paper discharge driven that is driven and rotated by lightly contacting the paper discharge drive roller 15a. A paper discharge roller 15 comprising a roller 15 b is provided, and the printing paper printed by the recording head 8 is discharged by rotating the paper discharge driving roller 15 a while being nipped by the paper discharge roller 15.
[0032]
The overall configuration of the printer 100 has been described above, and the positioning device 25 that determines and regulates the position of the conveyance tray 18 in the digit direction will be described below with reference to FIGS. 3 to 6. 3 is an external perspective view of the rear part of the printer 100. FIG. 4 is a plan view of the transport tray 18. FIGS. 5 and 6 are plan views of the positioning device 25. FIG.
[0033]
First, the configuration of the transfer tray 18 will be described with reference to FIG. The transfer tray 18 includes a tray body 18a made of a plate-like body, and the tray body 18a is formed with a recess 19 having a donut shape in plan view. The concave portion 19 is a concave portion for setting the optical disc R as an inflexible recording medium, and a convex portion 20 is formed at the center thereof so that the central hole of the optical disc R is fitted into the convex portion 20. It has become. The optical disc R is held without being easily detached from the concave portion 19 by fitting the convex portion 20 with the central hole of the optical disc R. Incidentally, holes indicated by reference numerals 23 and 23 are holes for taking out the optical disc R set in the recess 19.
[0034]
The upper side of the transport tray 18 in FIG. 4 is the side to be inserted into the printer 100. A reflection plate 21 having a predetermined reflectance is provided in the vicinity of the end on the insertion side (0 digit side in the printer 100). The reflecting plate 21 has a strip shape extending in the transport direction. On the other hand, a sensor (reflective sensor) 16 is provided on the lower surface of the carriage 3 (see FIG. 2). The sensor 16 includes a light emitting unit (not shown) and a light receiving unit (not shown) so that the reflectance of the recording medium located under the carriage 3 and its change can be detected.
[0035]
Here, the entire transport tray 18 is black, and the reflecting plate 21 is white having substantially the same reflectance as that of plain paper. When the transport tray 18 is manually fed, the reflector 21 is positioned just below the sensor 16 when the carriage 3 performs main scanning. 16 detects a change in reflectance between the reflector 21 and the tray main body 18a located below, so that the control unit (not shown) of the printer 100 is sure that the set transport medium is a transport tray. It is possible to recognize that it is 18. That is, the reflection plate 21 functions as an identification display of the transport tray 18.
[0036]
Next, the positioning device 25 that regulates the position in the digit direction of the transport tray 18 will be described with reference to FIGS. 5 and 6. 5 and 6, the left side is referred to as “0 digit side” and the right side is referred to as “80 digit side”. In FIG. 5, the positioning device 25 includes a support surface 11 a (paper guide 11) that supports the transport tray 18 from below, and a fixed guide 29 that guides the 0-digit side (left side in FIG. 5) side end of the transport tray 18. And a tray detector 30 as a “recording medium detecting means” for detecting that the transport tray 18 has been inserted.
[0037]
As shown in FIG. 3, the tray insertion portion 27 has substantially the same shape as the cross-sectional shape in the digit direction of the transport tray 18, more specifically, a tray insertion port 28 having a frontage slightly larger than the thickness and width of the transport tray 18. And is configured to insert the transfer tray 18 from the tray insertion port 28. That is, since the tray insertion port 28 is a frontage having substantially the same shape as the cross-sectional shape of the conveyance tray 18 in the digit direction, the insertion port of the conveyance tray 18 is easy to visually recognize, and an erroneous operation by the user (for example, an erroneous part) It has the effect that there is little).
[0038]
On the 0-digit side of the tray insertion portion 27, a fixed guide 29 that guides the side edge on the 0-digit side of the transport tray 18 is fixed so as to extend in the transport direction (vertical direction in FIG. 5). A tray detector 30 is provided on the 80-digit side of the tray insertion portion 27. The fixed guide 29 is in uniform contact with the 0 digit side end of the transport tray 18 and functions to regulate the feeding posture and the digit direction position of the transport tray 18.
[0039]
The tray detector 30 includes a detection lever 33 as a “contact portion” and a detection unit 31 that detects the state of the detection lever 33. The detection lever 33 is substantially L-shaped in plan view, and one end thereof protrudes into the feeding path of the transport tray 18 (part indicated by reference numeral 33c: hereinafter referred to as “contact end 33c”). The other is formed so as to protrude in a direction away from the feeding path of the transport tray 18 (part indicated by reference numeral 33b: hereinafter referred to as "detection end 33b") and has a rotating shaft 33a. By rotating about the rotation shaft 33a, the contact end 33c can advance and retreat with respect to the feeding path of the conveyance tray 18 (80-digit side of the conveyance tray 18).
[0040]
A torsion coil spring 33 a is provided on the rotation shaft 33 a of the detection lever 33. The torsion coil spring 33a is provided so that one end thereof is a part of the detection lever 33 and the other end is engaged with the lever holding portion 35 that pivotally supports the detection lever 33. The end 33 c is always urged to rotate so as to protrude into the feeding path of the transport tray 18.
[0041]
Next, the detection unit 31 a includes a light emitting unit 31 a and a light receiving unit 31 b that receives light from the light emitting unit 31 a, and the detection end 33 b of the detection lever 33 receives light from the light emitting unit 31 a by the rotation operation of the detection lever 33. The light directed to the part 31b is blocked and passed. Accordingly, as shown in the change from FIG. 5 to FIG. 6, when the contact end 33 c is pushed away by the transport tray 18 as the transport tray 18 passes and the detection lever 33 rotates, the detection end 33 b is detected by the detection unit 31. Then, the light receiving unit 31b enters the light receiving state, and the tray detector 30 sends a signal indicating switching to the light receiving state to the control unit of the printer 100 (not shown) (engagement state of the detection lever 33). Thus, the printer 100 can know that the transport tray 18 has been inserted into the feeding path.
[0042]
In addition, when the end of the transport tray 18 (the lower end in FIGS. 5 and 6) passes the position of the detection lever 33, the detection lever 33 returns to the original state (the detection lever 33 is not engaged), thereby The light receiving unit 31b enters a non-light receiving state, and the tray detector 30 sends a signal indicating switching to the non-light receiving state to the control unit. The printer 100 can thereby know the passage of the end of the transport tray 18 and monitor the paper feed amount from the start end of the transport tray 18 to the end of the transport tray 18, thereby The length of the tray 18 in the paper feed direction can also be detected.
[0043]
Next, operational effects of the positioning device 25 configured as described above will be described with reference to FIGS. 5 and 6. When printing on the optical disc R set on the transport tray 18, it is necessary to appropriately regulate the position in the digit direction of the transport tray 18 in order to perform printing at an appropriate position. However, a movable guide (not shown) for guiding the end of the conveyance tray 18 on the 80-digit side (the left side in FIGS. 5 and 6) in order to appropriately regulate the position in the digit direction of the conveyance tray 18 in this way. When the movable guide is manually operated to determine or regulate the girder direction position of the transport tray 18, the operation becomes troublesome, and the girder direction position is appropriately adjusted due to an operation mistake or forgotten operation. May not be regulated.
[0044]
In addition, if the width of the tray insertion port 28 (see FIG. 3) described above is made completely the same as the width of the transport tray 18 in order to appropriately guide the position of the transport tray 18 in the beam direction, the transport tray 18 The workability at the time of inserting is reduced, and it becomes necessary to strictly manage the width dimensions of the transfer tray 18 and the tray insertion slot 28, resulting in an increase in cost.
[0045]
Therefore, the positioning device 25 uses the tray detector 30 as a restricting means for determining and restricting the position of the conveyance tray 18 in the spar direction (to serve as both), thereby solving the above-described problems. That is, as described above, the detection lever 33 is provided by the torsion coil spring 34 so that the contact end 33c always protrudes into the feeding path of the transport tray 18, so that the transport tray 18 is provided as shown in FIG. When inserted, the side end on the 80-digit side of the transport tray 18 is pressed in the direction of the arrow in the figure, and the transport tray 18 is urged toward the fixed guide 29 in this way, so that the digit of the transport tray 18 is pressed. The direction position is determined and regulated. At the same time, the feeding tray 18 is biased toward the fixed guide 29 extending in the conveying direction, thereby restricting the feeding posture of the conveying tray 18.
[0046]
Therefore, the girder direction position restricting means by the tray detector 30 does not require a girder direction positioning operation by the user, and the tray insertion port 28 can be formed with a sufficient dimension, as described above. The problem can be solved.
[0047]
In addition, since the tray detector 30 also serves as a girder direction position restricting means for the transport tray 18, the structure is simplified and the girder direction position restricting means for the transport tray 18 can be provided at low cost without providing any special components. Obtainable.
[0048]
In this embodiment, the detection end 33c presses the side end of the transport tray 18 with a point. However, if the detection end 33c is configured to come into wide contact with the 80-digit side end of the transport tray 18, Further, moment force (clockwise and counterclockwise in FIGS. 5 and 6) is not generated in the transport tray 18, and the feeding posture of the transport tray 18 can be made more stable.
[0049]
Further, in this embodiment, the front opening dimension of the tray insertion opening 28 is substantially the same as the cross-sectional shape of the conveyance tray 18 in the digit direction. It is also possible to manually feed print media having different dimensions (for example, thick board paper).
[0050]
Next, another embodiment of the positioning device 25 will be described with reference to FIG. Here, FIG. 8 is a plan view of a positioning device 25 ′ according to another embodiment. 8 is different from the positioning device 25 shown in FIG. 5 in that the tray detector 30 ′ has a symbol P _b Is provided so as to be slidable in the width direction (the arrow direction in FIG. 8) of a print medium (for example, thick board).
[0051]
That is, the tray detector 30 ′ is mounted on the sliding member 36. The sliding member 36 is used for the printing medium P in the paper guide 11. _b , And a projection (not shown) that engages with the guide grooves 37 formed so as to extend in the width direction of the print medium P. _b It can slide in the width direction. The sliding member 36 is biased to the 0 digit side (left side in FIG. 8) by the spring 38, so that the sliding member 36 is moved to the print medium P. _b In the state where is not inserted, as shown by the reference numeral 36 ', it is positioned closest to the 0th digit. The guide grooves 37, 37 are formed so that the sliding member 36 can slide from the position indicated by reference numeral 36 'to the position indicated by reference numeral 36''.
[0052]
Next, the sliding member 36 is a print medium P. _b The guide slope 36a is in contact with the leading end of the 80th digit. The guide inclined surface 36a has various sizes (width dimensions) as shown in the drawing. _b Is formed so that the front end corner portion of the 80 digit side can be brought into contact with the print medium P. _b Print medium P with a smaller width dimension _b '80 digit side tip corner, print media P _b Print medium P with a larger width dimension than _b It is possible to come into contact with the 80-digit side corner of ''. The sliding member 36 is a printing medium P _b Can be slid in the width direction of the print medium P. _b Is inserted, the inserted print medium P _b The print medium P is slid in accordance with the width dimension of the print medium P _b Displaces to the optimal position that fits the width dimension.
[0053]
That is, in the positioning device 25 ′, the tray detector 30 ′ itself is displaced in accordance with the width dimension of the print medium into which the tray detector 30 ′ is inserted, so that it is possible to cope with print media of various sizes. It is possible to obtain the operational effects.
[0054]
In the positioning device 25 ′ shown in FIG. 8, the inserted print medium P _b The tray detector 30 ′ is automatically displaced according to the width dimension of the tray detector 30. However, the tray detector 30 is not provided with the guide slope 36 a and the spring 38 on the sliding member 36, and is operated by the user operation. 'Manually print media P _b It may be configured to slide in the width direction. In this case, the sliding member 36 is prevented from being displaced to the 80th digit side (the right side in FIG. 8) by losing the spring force of the torsion coil spring 34 that urges the detection lever 33 to rotate. It is desirable to increase the resistance (frictional force) when sliding, or to separately provide holding means for holding the sliding member 36 at the displaced position.
[0055]
【The invention's effect】
As described above, according to the present invention, the detection unit that detects the passage of the recording medium in contact with the recording medium is configured to urge the side end of the recording medium toward the fixed guide. As a result, the position in the digit direction of the recording medium is determined, so that no special operation is required, and the position in the digit direction of the recording medium can be easily regulated. In addition, since the recording medium detecting means for detecting the passage of the recording medium also serves as a recording medium regulating means, the position in the digit direction of the recording medium can be simplified and inexpensively provided without providing any special components. Can be regulated.
[Brief description of the drawings]
FIG. 1 is an external perspective view of an ink jet printer according to the present invention.
FIG. 2 is a schematic sectional side view of an ink jet printer according to the present invention.
FIG. 3 is a perspective view of a rear portion of the ink jet printer according to the present invention.
FIG. 4 is a plan view of a recording medium transport tray.
FIG. 5 is a plan view of a recording medium positioning apparatus according to the present invention.
FIG. 6 is a plan view of a recording medium positioning apparatus according to the present invention.
FIG. 7 is a perspective view of a rear portion of an ink jet printer according to the related art.
FIG. 8 is a plan view of a recording medium positioning apparatus according to another embodiment.
[Explanation of symbols]
1 Paper feeder
2 Transport rollers
3 Carriage
8 Inkjet recording head
10 Paper feed roller
11, 12 Paper guidance
13 Paper detector
15 Paper discharge roller
16 sensors
17 Platen
18 Recording medium transport tray
25 Positioning device
27 Tray insertion part
28 Tray slot
29 Fixed Guide
30 Tray detector
31 detector
33 Detection lever
34 Torsion coil spring
35 Lever holder
100 Inkjet printer
R optical disc

Claims (3)

A support surface for supporting the recording medium from below;
A fixed guide fixed to one end side of the recording medium and regulating a side end position of the recording medium;
A recording medium detecting means for detecting passage of the recording medium by contacting with the recording medium, the position in the digit direction of the recording medium being manually fed in a recording apparatus for recording on the recording medium; A recording medium positioning device to regulate,
On the side facing the fixed guide across the recording medium, the recording medium detection means engages with a non-engagement state where the recording medium detection unit does not engage with the side end of the recording medium and engages with the side end of the recording medium A contact portion provided to change the state,
A detection unit for detecting a change in state of the contact unit,
The contact portion biases the side edge of the recording medium toward the fixed guide in the engaged state;
The recording medium detection means is provided so as to be slidable in the width direction of the recording medium, and the guide slope with which the front end corner of the recording medium abuts, and the recording medium detection means is biased toward the fixed guide. Biasing means to
When the leading end corner of the recording medium comes into contact with the guide slope, the recording medium detection means slides in the width direction in accordance with the recording mediums having different sizes.
A recording medium positioning apparatus. A support surface for supporting the recording medium from below;
A fixed guide fixed to one end side of the recording medium and regulating a side end position of the recording medium;
A recording medium detecting means for detecting passage of the recording medium by contacting with the recording medium, the position in the digit direction of the recording medium being manually fed in a recording apparatus for recording on the recording medium; A recording medium positioning device to regulate,
On the side facing the fixed guide across the recording medium, the recording medium detection means engages with a non-engagement state where the recording medium detection unit does not engage with the side end of the recording medium and engages with the side end of the recording medium A contact portion provided to change the state,
A detection unit for detecting a change in state of the contact unit,
The contact portion biases the side end of the recording medium toward the fixed guide in the engaged state, so that the recording medium detection means also functions as a restriction means for restricting the position in the digit direction of the recording medium. And
The recording medium detection means is provided so as to be slidable in the width direction of the recording medium, and the guide slope with which the front end corner of the recording medium abuts, and the recording medium detection means is biased toward the fixed guide. Biasing means to
When the leading end corner of the recording medium comes into contact with the guide slope, the recording medium detection means slides in the width direction in accordance with the recording mediums having different sizes.
A recording medium positioning apparatus.   A recording apparatus comprising a recording unit for recording on a recording material, the recording apparatus comprising the recording medium positioning apparatus according to claim 1.

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