JPH05221105A - Printer - Google Patents

Abstract

PURPOSE:To take in and out paper feeding trays automatically and thereby enhance the operability of a printer by housing an ink ribbon which is encased into a cassette and thus be throwaway and a photographic paper onto the same tray, and thereby facilitating their changing workabilities. CONSTITUTION:In a printer wherein an ink ribbon-wound feeding and winding reel and photographic paper are respectively transported into the printer main body, and print is effected via a platen and a head disposed in the printer main body, a feeding tray 20 is provided changeably in the printer main body, and on the paper feeding tray 20, an ink ribbon cassette having a winding reel and a photographic paper are housed detachably and, whereas, on the printer main body, a tray driving mechanism 60 is provided which serves to take in and out the feeding tray 20, and a tray locking mechanism 30 is provided that acts to lock the paper feeding tray 20 when the paper feeding tray 20 is retracted in a predetermined position within the printer main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer such as a sublimation type thermal transfer type color printer.

[0002]

2. Description of the Related Art For example, the present applicant has disclosed a color printer using a cassette containing photographic printing paper and an ink ribbon in Japanese Patent Application No. 2-223279. This cassette
More specifically, referring to FIG. 40, 200 is a cassette, and the photographic paper 21 is provided at the center of the cassette body 201.
A box-shaped photographic paper storage chamber 202 for storing 0 is formed, and a supply reel 221 around which one end side of the ink ribbon 220 is wound is detachably attached to the inside of both protruding portions at the tip thereof. A pair of reel holders 203, 2
03 is formed to project. Further, the photographic paper storage chamber 202 of the cassette body 201 and the pair of reel holders 203, 20
A reel storage chamber 204 for rotatably supporting a take-up reel 222 around which the other end of the ink ribbon 220 is wound
Has been formed. In the figure, 205 is a photographic paper storage room 202.
A paper feed plate, which is attached to the bottom of the paper so as to be vertically rotatable,
Reference numeral 6 denotes a lid provided on the ceiling side of the photographic paper storage chamber 202 so as to be horizontally slidable.

While the cassette 200 is held and locked by the cassette holder, it is conveyed to a predetermined position on the platen (neither is shown) side in the printer body, and the printing paper 210 pushed up by the paper feeding plate 205 is It is supplied to the platen from the lid 206 side in the open state. The supply reel 221 is gripped by a reel transfer arm (not shown) and is transferred to the platen side.

[0004]

However, in the conventional printer using the cassette 200 containing the photographic printing paper 210 and the ink ribbon 220, when the cassette 200 is not a disposable type, the used ink ribbon 220 is used up.
Replacing the reels 221 and 222 wound with was complicated, and the handleability was poor. Further, in the case of the disposable type, there is a disadvantage that the cost becomes too high. Furthermore, since there is no means for securely locking the cassette holder that has transported the cassette 200 to a predetermined position in the printer body at the predetermined position in the printer body, there is a concern that the cassette holder may move during printing, which adversely affects the printing. There was a fear of giving.

In view of this, the present invention removably accommodates a cassette of ink ribbons in the same paper feed tray for storing photographic paper to improve the replacement workability, while the paper feed tray is used for the printer body. (EN) Provided is a printer which can be automatically put in and taken out of the printer, and can reliably lock the paper feed tray when the paper feed tray is pulled into a predetermined position in the printer body.

[0006]

In the printer, a reel wound with an ink ribbon and a printing paper are carried into a printer body, and printing is performed via a platen and a head arranged in the printer body. A tray in which a paper feed tray is freely inserted into and taken out of the printer body, and an ink ribbon cassette having the above reel and photographic paper are detachably housed in the paper tray, and the paper tray is taken in and out of the printer body. A drive mechanism is provided, and a tray lock mechanism is provided to lock the paper feed tray when the paper feed tray is pulled into a predetermined position in the printer body.

[0007]

Since the ink ribbon cassette having the reel around which the ink ribbon is wound and the photographic paper are detachably housed in the paper feed tray, the work of replacing the used ink ribbon cassette and the work of mounting the photographic paper can be facilitated.
Handleability is improved. Further, the paper feed tray is automatically taken in and out of the printer body by the tray drive mechanism. The paper tray that is pulled into a predetermined position inside the printer body is securely locked to the printer body by the tray lock mechanism, and there is no concern that the paper tray will move during printing.
It does not adversely affect the printing.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings.

In FIG. 1, reference numeral 1 is a sublimation type thermal transfer type video color printer (hereinafter abbreviated as a printer), and a rectangular opening is formed in a front panel 3 made of synthetic resin in front of a casing body 2 of the casing. 4 is formed. The opening 4 is partitioned by a paper discharge tray 70, which will be described later, at a substantially center thereof, and has a paper feed port 5 on the lower side and a paper discharge port 6 on the upper side. In addition, a chassis 10 made of a metal plate is arranged from the bottom to both sides in the printer body 2. The chassis 10 includes a bottom plate 11 and a pair of side plates 12 and 12 that are bent at right angles from both side portions of the bottom plate 11 to form a front cuboid shape.

At a position facing the paper feed port 5 between the pair of side plates 12, a paper feed tray 20 for accommodating the photographic paper 9 and an ink ribbon cassette (hereinafter abbreviated as a cassette) 190 to be described later is horizontally taken in and out. In addition to being freely arranged, a paper discharge tray 70 on which a printed photographic paper 9'is placed is detachably provided at a position facing the paper discharge port 6 between the side plates 12, 12. A platen 100 is rotatably supported by a shaft 101 at a substantially center between the pair of side plates 12, and a head 140 is mounted by a head drive mechanism 150 on the rear side facing the platen 100. It is provided so that it can be contacted and separated.

As shown in FIGS. 2 and 6, the paper feed tray 20.
Is a box-shaped photographic paper storage chamber 22 with the top side open to the front
And a tray main body 21 made of synthetic resin, each having a casing-shaped cassette storage chamber 23 with a rear side and an upper side opening at the back,
Both of the collars 24, 2 integrally protruding on both sides of the tray body 21.
A pair of metal rails 26, 26 each having a substantially cross-section that is fixed to the lower surface of the screw 4 by screwing, and three pins 27 that are planted in the vertical piece portions 26 a located inside each rail 26. A pair of long plate-shaped racks 28, 28 movably provided in the front-rear direction along the rail 26 via the long groove holes 28b by a predetermined distance (for example, 18 mm), and the pair of rails 26, 26 at the tip ends thereof. A pair of tray lock mechanisms 30 and 30 are provided. A rectangular opening 22a is formed at the center of the bottom of the printing paper storage chamber 22 of the tray body 21 on the side of the cassette storage chamber 23, and a pair of elongated holes 22b, 22b is formed on the front side thereof. .. A pair of bent portions 25a, 25a of the sheet feeding plate 25 are rotatably supported upward in the pair of long holes 22b, 22b so as to cover the opening 22a. Further, in each rail 26, a pair of rollers 13, 13 pivotally supported on the inner surface of each side plate 12 of the chassis 10 by pins are loosely fitted. This allows
The paper feed tray 20 is horizontally movable in the front-rear direction between the pair of side plates 12, 12.

As shown in FIGS. 6 and 9, each tray lock mechanism 30 has a he-shaped tray lock arm (a center portion pivotally supported by a pin 32 at the center of the tip of the vertical piece 26a of each rail 26). (Hereinafter, simply referred to as an arm) 31 and a pin 28 pivotally supported by a base end portion of the arm 31 and regulates the position of the rack 28 with respect to the rail 26 when the arm 28 is positioned in a notch 26b formed in the vertical piece 26a. 26 and rack 28
And a torsion spring 34 that positions the roller 33 in the notch 26b by urging the roller 33 to move integrally with the pin 32 by urging the tip end 31a side of the arm 31 which is inclined downward by the pin 32. And the side portion 3 of each rail guide plate 36 screwed to the bent portion 12a in the inner surface of each side plate 12.
Pins 6b are vertically and diagonally supported by 6b, respectively, and fixed to a pair of rollers 35, 35 for locking the tip 31a of the arm 31 so as to sandwich it against the biasing force of the torsion spring 34, and the tip of each rail 26. The stopper 37 has a protrusion 37a that is inserted into a positioning hole 36a formed in the front surface of the rail guide plate 36 when the tip 31a of the arm 31 is locked between the pair of rollers 35. It is configured. The tip 31a of each arm 31 has a pair of rollers 3
Since the roller 33 of the arm 31 is separated from the cutout portion 26b of the rail 26 when locked between the racks 5 and 35, the rack 28
Is the rail 26 whose movement is stopped by the rail guide plate 36.
On the other hand, the rail guide plate 36 can be further moved by the length of each slot 28b. The amount of movement of each rack 28 is determined by a black mark (sensor mark) 29 provided on one of the racks 28, a pair of reflection-type optical sensors 39 mounted on a substrate 38 arranged in parallel on one side plate 12. It is controlled by reading at 39.

A pair of lid opening mechanisms 40, 40 for opening the lid 192 of the cassette 190 are provided on both sides of the cassette storage chamber 23 of the paper feed tray 20. As shown in FIGS. 8 and 9, each lid opening mechanism 40 is rotatably supported by each cylindrical boss 23b integrally formed in the center of the outer surface of each arcuate side portion 23a of the cassette storage chamber 23, and is L-shaped. Between a synthetic resin cassette opener (lid opening means) 41 in which a mold lid opening piece portion 41a and a cylindrical stopper portion 41b are integrally projecting in alternate directions, and between the boss 23b and the central portion 41c of the cassette opener 41. The lid opening piece portion 41a of the cassette opener 41 is inserted into the upper protrusion 2 of the side portion 23a.
It is composed of a torsion spring 42 that urges 3c.
The biasing force of the torsion spring 42 causes the stopper portion 41 of the cassette opener 41 to be provided in the central cutout portion 28c of the rack 28 before the rack 28 moves with respect to the rail 26.
Since b is locked, it does not work in the direction of rotating the cassette opener 41.

A pair of reel drive mechanisms 50, 50 for driving the take-up reel 194 of the cassette 190 are arranged below the flange portions 24, 24 of the photographic paper storage chamber 22 of the paper feed tray 20 to the cassette storage chamber 23. It is set up. As shown in FIG. 8, each reel drive mechanism 50 includes a vertical piece 2 of the rail 26.
6a is rotated about a shaft 26c that is planted approximately in the center of the shaft 6a,
An idler gear 5 having a ribbon winding head portion 51a that is slidably supported along the axial direction of c and is movable back and forth in round holes 23e formed in both side portions 23a of the cassette storage chamber 23.
1 and the cylindrical portion 52a at the center are the horizontal cut-and-raised portions 26 of the rail 26.
It is rotatably supported by a shaft 26e that is hung on d, and the base end portion 52b is in sliding contact with the bent portion 28d of the rack 28.
A pair of pin portions 53a of a ring 53, which are made separable and in which a pair of slot portions 52d, 52d of the U-shaped tip portion 52c are slidably supported on the outer peripheral surface of the base end portion of the head portion 51a of the idler gear 51, 53a, a shift lever 52 made of a synthetic resin, which is inserted and locked, and a central cylinder portion 52a of the shift lever 52, and the head portion 51a of the idler gear 51 is inserted through the round holes 23e of the cassette storage chamber 23 into the cassette. A torsion spring 54 that urges the housing chamber 23 in the direction of advancing into the storage chamber 23, and a pair of side plates 12, 1 of the chassis 10.
A shaft 55 that is rotatably hung between the two and that has a pair of drive gears 56, 56 fixed to which the idler gear 51 meshes when the head portion 51a advances into the cassette storage chamber 23.
A motor 58 having a gear 57 fixed to the outer end of the right side plate 12 of the shaft 55, and a worm gear 58a mounted on the outer side of the right side plate 12 and meshing with the gear 57 via an intermediate gear 59. It consists of and.

A tray drive mechanism 60 for horizontally loading and unloading the paper feed tray 20 from the inside of the printer body 2 is provided from the outer surface of the right side plate 12 of the chassis 10 to a space between the pair of side plates 12. As shown in FIGS. 5 and 9, the tray drive mechanism 60 is rotatably bridged between the pair of side plates 12 of the chassis 10 and meshes with the tooth portions 28 a of the pair of racks 28 of the paper feed tray 20. A pair of drive gears 6
A shaft 61 on which 2, 62 are fixed, and this shaft 61
Gear 63 fixed to one outer end of the side plate 12 on the right side of the
Attached to the outside of the right side plate 12, and the intermediate gear 66
And a motor 64 having a worm gear 65 that meshes with the gear 63 via the.

As shown in FIGS. 2 and 10, a paper discharge tray 70 is provided.
Is formed of a synthetic resin into a rectangular plate shape, and a pair of lock claws 71, 71 are integrally formed on both sides of the rectangular plate so as to be elastically deformable by notches of inverted L shape. A mountain-shaped claw portion 71a is integrally formed on the lower side of the tip of each lock claw 71. In addition, the width of the paper output tray 70 on the front side is equal to that of each lock claw 71.
It is slightly wider than the side width, and steps 72, 72 are formed on both sides. Inside the pair of side plates 12, 12 of the chassis 10 facing the side edges of the paper ejection tray 70 on the side of the lock claws 71, the paper ejection tray 70 is detachably attached to each of the first to third parts.
The guide pieces 14a to 14c are notched and bent. The first and third guide pieces 14a and 14c are located at the same position, and the second guide piece 14b is located at a position higher than the first and third guide pieces 14a and 14c by the thickness of the discharge tray 70. Both sides of the paper ejection tray 70 are
It is detachably held between the third guide pieces 14a and 14c and the respective second guide pieces 14b. At this time,
As shown in FIG. 0 (b), the claw portions 71a of the lock claws 71 are locked to the first guide pieces 14a, and the stepped portions 72 are locked to the front edge of the side plate 12 so that the paper discharge tray 70 is deep. It doesn't go too far. Further, when the paper discharge tray 70 is removed, the paper discharge port 6 and the paper feed port 5 are communicated with each other so that the paper feed tray 2
The photographic paper storage chamber 22 of 0 is exposed.

Further, the pair of side plates 12, 1 of the chassis 10
A paper ejection guide plate 75 made of synthetic resin is fixed by screws between the upper edges of the upper and lower edges, and a metal upper and lower pair is provided below the paper ejection guide plate 75 between the pair of side plates 12 and 12. The paper feed guide plates 76 and 77 are fixed with screws. The paper ejection guide plate 75 completely covers the platen 100. Each of the paper feed guide plates 76 and 77 extends to the paper chuck plate 105 side described later. Upper and lower paper feed guide plates 7
A sheet feeding passage 78 is formed between the sheets 6 and 77, and a sheet discharging passage 79 is formed between the sheet discharging guide plate 75 and the upper sheet feeding guide plate 76.

Between the entrance of the paper feed passage 78 and the exit of the paper discharge passage 79, there is provided a paper feed means 80 which also serves as a paper ejecting means for feeding the printing paper 9 to the platen 100. As shown in FIGS. 1 and 2, the sheet feeding means 80 holds a drive roller 81 fixed to the center of a shaft 82 hung between the pair of side plates 12 and 12, and holds the drive roller 81 on the shaft 82. A pair of oscillating plates 83, 83 rotatably supported at their base ends, and a driven roller 84 rotatably supported at the tips of the pair of oscillating plates 83, 83 via a support shaft 84a. And a timing belt 85 stretched between the driving roller 81 and the driven roller 84.
A separating roller 86 that is rotatably supported between a central cutout 77a of the lower paper feed guide plate 77 via a support shaft 86a and contacts the belt 85; and a separation roller 86 interposed between the shaft 82 and the swing plate 83. A belt 85 is rotatably supported via a support shaft 87a between a torsion spring (not shown) that presses the belt 85 against the separation roller 86 and a notch 75a at the center of the discharge guide plate 75, and a belt 85 through a torsion spring 88. And a gear 89 fixed to an outer end of the left side plate 12 of the shaft 82.

Below the photographic paper push-up plate 25 of the paper feed tray 20, there is provided a paper feed lever 90 for moving the leading end side of the photographic paper push-up plate 25 to the belt 85. The paper feed lever 90 is fixed to the center of a shaft 91 which is stretched between the pair of side plates 12 of the chassis 10. Between the belt 85 and the paper discharge tray 70, the photographic paper 9'printed is placed on the paper discharge tray 70 or in the paper feed tray 20.
A flap (printing paper sorting means) 92 for sorting the sheets onto the two is provided. The flap 92 is supported rotatably in the up-down direction via a shaft 93 that is stretched between the pair of side plates 12, 12. The gear 89 fixed to one end of the shaft 82 of the drive roller 81 has the left side plate 1 through the intermediate gear 94.
Worm gear 95 of motor 95 mounted on the outside of No. 2
It meshes with a. Further, the shaft 91 to which the paper feeding lever 90 is fixed is rotated via a connecting lever 97 or the like shown in FIG. 4 which is rotated by reciprocal movement of a slide plate 96 slidably provided on the outer surface of the left side plate 12. It is supposed to do. Further, the shaft 93 to which the flap 92 is fixed is rotated by a drive mechanism (not shown). Further, as shown in FIG. 3, the lower paper feed guide plate 77 is provided with a reflection type optical sensor 99 for detecting jamming of the photographic printing paper 9 at the time of paper feeding.

The chassis 1 below the exit side of the paper feed passage 78
A rubber-made cylindrical platen 100 is rotatably supported via a shaft 101 between the pair of side plates 12, 12. Both sides of the shaft 101 are on both sides 1 of the platen 100.
00a, 100a penetrates through the center of the shaft 101, and both ends 101a, 101a of the shaft 101 have a pair of side plates 12, 1.
2 is rotatably supported by bearings 102 made of synthetic resin. Further, a groove-shaped cutout portion 100c is formed on the outer peripheral surface 100b of the platen 100 in parallel with the shaft 101. A reinforcing plate (reinforcing member) 103 made of metal or the like having a hardness higher than that of the platen 100 and having a substantially square cross section is adhered to the inside of the notch 100c. A paper chuck plate (paper chuck member) 105 for chucking the photographic printing paper 9 with the outer peripheral surface 100b of the platen 100 is provided in the reinforcing plate 103 of the cutout portion 100c of the platen 100 so as to be vertically movable. The paper chuck plate 105 is used for the platen 100.
The outer peripheral surface 100b has a horizontal portion 105a and a vertical portion 105b that are parallel to the tangential direction and the normal direction, respectively, and has an L-shaped cross section.
a and 100a are formed by bending both side portions 105c and 105c from both sides of the horizontal portion 105a and the outer peripheral surface 10 of the platen 100 and the horizontal portion 105a.
0b is used to chuck the photographic printing paper 9.

As shown in FIG. 11, the paper chuck plate 105
The vertical portion 105b of the paper chuck plate 105 is moved up and down in the reinforcing plate 103 of the notch 100c of the platen 100 by the paper chuck plate lifting mechanism 110, and the horizontal portion 105a of the paper chuck plate 105 is pressed against and separated from the outer peripheral surface 100b of the platen 100. I am allowed to do it. The paper chuck plate elevating / lowering mechanism 110 is fixed to both side surfaces 100a, 100a of the platen 100, and a pair of sliders 111, 111 made of synthetic resin fitted to both side portions 105c, 105c of the paper chuck plate 105, and each slider. A pair of synthetic resin guides 112 and 112 that slide 111 along the normal direction of the outer peripheral surface 100b of the platen 100, and are rotatably supported on both sides of the shaft 101 of the platen 100, and are integrated with the outer surface of each slider 111. The paper chuck plate 1 has a cam groove hole (cam surface) 113e with which a columnar cam follower 111a formed by projection is engaged.
A pair of cams 113, 1 made of synthetic resin for moving up and down 05
13 and between the hook portion 111c of each slider 111 and the cylindrical protrusion 112c of each guide 112,
A pair of tension coil springs (elastic members) 114 for constantly urging the paper chuck plate 105 toward the axis 101 in the normal direction,
114, a metal plate-shaped cam rotation stop (cam lock means) 115 for stopping the rotation of the pair of cams 113, 113, and the support shaft 1 on the right side plate 12 on the right end side of the cam rotation stop 115.
The cam rotation stopper 115 is rotatably supported via 17
A cam rotation stopping operation plate (cam lock releasing means) 116 for releasing the locked state of the pair of cams 113, 113 by
And a cam rotation stop release lever 118 that is slidably provided along the outer surface of the right side plate 12 for rotating the cam rotation stop operation plate 116, and is fixed to the right end of the shaft 101 of the platen 100. Drive gear (rotating means) 119 for rotating the.

Each slider 111 is formed in an L-shape, and a cam follower 111a and a cylindrical portion 111b, which are integrally projected on one side surface of the slider 111, are provided on each side 10 of the paper chuck plate 105.
5c is fitted into each pair of small holes 105d and 105e. Further, the pair of cylindrical portions 111d and 111e integrally protruding from the other side surface of each slider 111 have a pair of groove holes 112d and 112 formed in the recess 112a of each guide 112.
It is slidable to e. Each cam 113 is rotatably supported by a cylindrical portion 112b protruding in the center of the recess 112a of each guide 112 so as to sandwich each slider 111. Each cam 113 has a disk portion 113a having the same diameter as that of each guide 112 and having the cam groove hole 113e, and a cylindrical portion 113b having a taper portion 113c and a hook portion 113d at the boundary projecting integrally with the disk portion 113a. I have it. In addition, the protrusion 113f formed integrally with the disc portion 113a in the tubular portion 113b and the protrusion 11 penetrating the disc portion 113a.
A torsion coil spring 120 for urging the cam 113 in a predetermined direction is interposed between 2c.

The cam rotation stopper 115 is provided on both side pieces 11 thereof.
5a and 115a are rotatably supported by a shaft 135, which will be described later, and arranged below the lower paper feed guide plate 77. A pair of projecting piece portions 115b, 115b that slide on the outer peripheral surface of the cylindrical portion 113b of each cam 113 are integrally projectingly formed at positions of the cam rotation stopper 115 facing the pair of cams 113, 113. The protruding piece 115 at the right end of the cam rotation stopper 115
The c is held between a pair of columnar portions 116a, 116a that integrally protrude from one side of the cam rotation stop operation plate 116. A tip portion 118a of a cam rotation stop release lever 118 is engaged with a cylindrical portion 116b that integrally projects from an upper portion of one side portion of the cam rotation stop operation plate 116. Cam rotation stop release lever 1
18 is linked to a head drive mechanism 150 described later,
By moving the cam rotation stop release lever 118 in the direction of arrow C in FIG. 11, the cam rotation stop 115 is rotated upward and separated from each cam 113.

Further, the cam rotation stop operation plate 116 and the support shaft 1
A compression coil spring 121 as a friction member is provided between
The limiter gear 122 is rotatably supported on the outer end of the support shaft 117 via a washer 123.
A drive gear 119 meshes with the limiter gear 122. As shown in FIG. 5, the drive gear 119 meshes with a pinion gear 126 of a motor 125 mounted outside the right side plate 12 via first and second intermediate gears 127 and 128. Incidentally, as shown in FIG.
A reflection type optical sensor 129 for detecting the amount of rotation of the drive gear 119 is arranged at a position opposed to.

Further, as shown in FIGS. 7 and 11, between the respective cams 113 of both ends 101a, 101a of the shaft 101 of the platen 100 and the respective side plates 12, a supply reel 193 is provided from a cassette 190 on the paper feed tray 20. A pair of reel transporting means 13 for holding and transporting the reels below the platen 100.
0 and 130 are provided. Each reel transfer means 130
Is a synthetic resin drive gear 131 rotatably supported on one end 101a of the shaft 101, a reel transfer arm 132 fixed to one side surface of the drive gear 131, and a composite fixed to the tip of the arm 132. A U-axis type holder 133 made of resin, and a tact switch (detection sensor) 134 attached to the center of the holder 133 for determining whether or not the supply reel 193 is held by the holder 133.
It is composed of and. A pair of drive gears 131, 13
Reference numeral 1 denotes a pair of gears 13 fixed to both sides of a shaft 135 rotatably supported between the pair of bearings 102.
It meshes with 6,136. A gear 137 is fixed to the outside of the right side plate 12 at the left end of the shaft 135. This gear 137 is, as shown in FIG.
Motor 1 mounted on the left side plate 12 via 38b
38 worm gear 138a is meshed. A reel lock claw 139 is attached in the middle of the reel transfer arm 132 via a torsion coil spring 139a.

The head 140 is adapted to come into contact with and separate from the platen 100 by a head driving mechanism 150. The head drive mechanism 150 includes a pair of support shafts 15 planted in a pair of brackets 15 and 15 that are screwed inside the pair of side plates 12 and 12 of the chassis 10.
1, 151 has a pair of arms 152, 152 whose one end portions 152a, 154a are rotatably supported, respectively, and a pair of side pieces (arms) 15 of a kite-shaped head holder 153.
4,154 and the other ends 152b, 154b of the pair of arms 152,152 and the pair of side pieces 154,154.
A pair of links 155, 156 and 155, 156, each of which has one end 155a, 156a pivotally supported by a pin.
And each pair of links 155, 156 and 155, 1
A shaft (pivotally supporting portion) 157 that pivotally supports the other end portions 155b and 156b of each other, and bent piece-shaped guides 158 and 158 formed by bending the pair of side plates 12 and 12 that slide both ends of the shaft 157. And a pair of drive gears 159 and 159 that are fixed to the outside of one end portions 152a and 152a of the pair of arms 152 and 152 and that rotate with each arm 152.

The head holder 153 is formed in a cuboid shape, and the cuboid second head holder 160 is arranged inside thereof. The head 140 is attached to the holder 160, and both side pieces of the holder 160 are attached to the pair of support shafts 15.
1, 151 are rotatably supported. Head holder 1
A plurality of compression coil springs (elastic members) are provided between the 53 and the second head holder 160 via a spring holder 161.
162 is interposed. The second head holder 160 is locked to the bent portions 154c of the both side pieces 154 of the head holder 153. The pair of drive gears 159, 159 is the shaft 1 hung on the pair of side plates 12, 12 of the chassis 10.
A pair of gears 164 and 164 fixed to 63 mesh with each other. A head cam gear 165 is fixed to the outer end of the left side plate 12 of the shaft 163. This gear 1
Reference numeral 65 is attached to the left side plate 12 via an intermediate gear 167 and meshes with a worm gear 166a of a motor 166. As shown in FIG. 12, the head cam gear 165
A black mark 165a is formed on the side surface of the black mark 165a, and a reflective optical sensor 168 for reading the black mark 165a is arranged at a position facing the black mark 165a.

The ink ribbon 190 between the supply reel 193 and the take-up reel 194 in the cassette 190, which is grasped by the pair of reel conveying means 130, 130 and conveyed below the platen 100, is being printed by the ribbon guide braking mechanism 170. It is designed to maintain a constant tension. This ribbon guide braking mechanism 170 is provided with
a and 171a are rotatably supported by a pair of support shafts 151 and 151 between the head holder 153 and the second head holder 160, and a head 140 of the pair of brake arms 171 and 171. Ribbon guide rollers (ribbon guide means) 172 that are rotatably supported by the respective tip portions 171b and 171b extending to the side and guide the ink ribbon 195 between the platen 100 and the head 140, and a pair of brake arms 171 and 171. The brake shaft 173 fixed between the middle parts of the shaft and the shaft 1.
A cylinder 174 rotatably supported by 63 and the cylinder 1
A pair of cams 175, 175 which are fixed to both ends of 74 and slide the brake shaft 173 on the outer peripheral surface 175a and the outer peripheral concave surface 175b, and a pair of cut and raised parts vertically bent on the lower portions of both sides of the second head holder 160. Parts 160a, 16
0a is rotatably supported via a pair of arms 176 and 176, and abuts on the ribbon guide roller 172 during printing to sandwich the ink ribbon 195 between them.
77 (ribbon braking means) and a torsion spring 178 for urging each arm 176 toward the ribbon guide roller 172.

The gear portion 175c integrally formed on the outside of each cam 175 is rotatably supported by the pair of brackets 15 and 15 via each shaft 179, and one (18)
0) meshes with the gear 164. Each pair of gears 180, 18
1 and the gears 183 that are rotatably supported by the pair of brackets 15 and 15 via the shafts 182 and that mesh with the other gears 181 make them rotatable in the opposite direction to the head cam gears 165. There is. This head drive mechanism 1
When the head 140 is moved by 50, the ribbon guide roller 172 and the brake roller 1 of the ribbon guide braking mechanism 170 are moved.
These rollers 172 and 173 can be brought into and out of contact with each other by interlocking with 77. Also, the shaft 16
A cam 184 is fixed to the outer side of the right side plate 12 at the right end of 3. The cam 184 allows the base end portion 118b of the cam rotation stop release lever 118 to be pressed against the tensile force of the tension coil spring 185.

As shown in FIG. 13, an ink ribbon cassette 190 is a casing type cassette main body 191 composed of upper and lower cases 191A and 191B made of synthetic resin having a rectangular opening on the front side, and a synthetic cassette for opening and closing the opening 191a. Resin lid 192 and U-shaped bearing portions 19 on both sides of the lid 192
2b, 192b and a pair of tapered bearing portions 191b, 19 formed integrally on both sides of the cassette body 191
1b is rotatably supported, and when the lid 192 is opened, the pair of bearing portions 191b, 191b and 192b, 19b.
The supply reel 193 taken out from between 2b, the take-up reel 194 rotatably supported by a pair of round hole-shaped bearing portions 191c, 191c formed on both sides of the cassette body 191, and each of these reels 193, 194. And an ink ribbon (hereinafter abbreviated as ribbon) 195 wound around the space. Then, the lid 1 of the cassette body 191
A pair of reel transfer means 13 is provided on both sides of the front surface where 92 is closed.
Insertion port 19 into which each arm 132 of 0 and 130 is inserted
6, 196 are formed, and the holder 133 of each arm 132 holds both sides of the supply reel 193 visible from each of the insertion ports 196.

Reference numeral 16 in FIG. 2 is a reinforcing plate, and FIG.
Reference numeral 17 in 7 is a print button, and 18 is a memory input button. Further, reference numeral 187 in FIG. 2 is a tension coil spring that pulls the slide plate 96. As shown in FIG. 4, the slide plate 96 is provided on the cam surface 165b of the head cam gear 165.
It is slidable by a link 188 engaging with.

According to the printer 1 of the above embodiment, FIG.
When the open / close button 8 of the paper feed tray 20 is pressed from the initial state shown in (4), the motor 64 causes the pair of drive gears 62, 62 to rotate. As a result, as shown in FIGS. 17 and 37, the paper feed tray 20 is pulled out of the printer body 2 from the paper feed port 5 via the pair of racks 28 and 28. At this time, FIG.
As shown in FIG. 5, since the rollers 33 of the tray lock arms 31 of the pair of tray lock mechanisms 30 and 30 are located at the end portions of the racks 28, the pair of rails and the racks 28 and 28 are integrated into a pair of rails. 26 and 26 move.

With the paper feed tray 20 pulled out, the cassette 190 and the photographic printing paper 9 are set on the paper feed tray 20. In this state, the pair of reel drive mechanisms 50,
Each shift lever 52 of 50 is at the position shown in FIG. 19A, and since each ribbon winding head portion 51a does not protrude into the cassette storage chamber 23 from each round hole 23e, the cassette 190 is stored in the cassette storage chamber 23. It does not interfere with the installation. The cassette 190 is held by the spring plates 23f in the cassette storage chamber 23 of the supply tray 20 with a weak force. Further, as shown in FIGS. 19 (a) and 25 (b), the L-shaped lid opening piece portion 41 a of each cassette opener 41 of the pair of lid opening mechanisms 40, 40 has a cutout portion 28 c at the center of each rack 28. Since it is pressed down by the cassette 190,
The lid 192 remains closed. Paper tray 20
The drawing-out position of the pair of optical sensors 39,
39 is determined by detecting the absence of the mark 29 on the rack 28.

When the open / close button 8 is pushed again or the paper feed tray 20 is pushed by hand, the movement is detected by each optical sensor 39, and the pair of drive gears 6 is driven by the motor 64.
2, 62 starts to rotate in reverse. As a result, as shown in FIG. 20, the pair of racks 28, 28 and the pair of rails 26,
26 starts to move with each pair of rollers 13, 13 as a guide, and the paper feed tray 20 begins to enter the printer body 2. When each rail 26 moves to the position shown in FIG. 20B, the tip end portion 31a of each tray lock arm 31 provided on the tip end side of each rail 26 is located above the side portion 36b of each rail guide plate 36. Upon hitting 35, each tray lock arm 31 starts rotating around the pin 32. At this time,
The roller 33 at the base end of each arm 31 moves upward and begins to separate from the notch 26b of each rail 26.

Tip portion 31a of each tray lock arm 31
Is clamped between the pair of rollers 35, 35 of each rail guide plate 36, the projection 3 of each stopper 37 at the tip of each rail 26
7a is fitted into the positioning hole 36a of each rail guide plate 36, and each rail 26 is positioned. At this time, since the tip end portion 31a of each arm 31 is locked by the lower roller 35, the rail 26 cannot move in the returning direction, and the paper feed tray 20 is locked in the printer body 2. This paper feed tray 20 is in the locked state (each rail 26
21 in the locked state), as shown in FIG.
Since the roller 33 at the base end portion of the rack is completely separated from the notch portion 26b of each rail 26, each rack 28 has each slot 28b.
Can be further moved to each rail guide plate 36 side. At the locked position of each rail 26, as shown in FIG.
As shown in FIG.
6, 196, the pair of holders 133, 133 of the pair of reel transfer means 130, 130 are inserted, and the cassette 19
Both sides of the supply reel 193 in the pair of holders 133 are
It is held by both 133 and the bearing portions 191b and 192b of the cassette 190. Whether or not both sides of the supply reel 193 are held by the pair of holders 133 and 133 is reliably detected by the switch 134 provided in each holder 133. Thereby, the cassette 190 of the supply reel 193
From the holder to each holder 133 (dropping)
An error is unlikely to occur, it is possible to detect whether or not each holder 133 is reliably set before the conveyance, and it is possible to eliminate a conveyance mistake of the supply reel 193.

As shown in FIG. 22, only each rack 28 further moves toward each rail guide plate 36 relative to each rail 26, and the black mark 29 on the rack 28 is detected by the optical sensor 39 on the right side in the drawing. Then, the motor 64 stops and the pair of drive gears 62, 62 stop. At this time, as shown in FIG.
As shown in FIG. 7, each rack 2 is attached to the stopper portion 41b of each cassette opener 41 of the pair of lid opening mechanisms 40, 40 attached to both front sides of the stopped tray main body 21.
By moving the notch 28c at the center of 8 to the left in the drawing, each cassette opener 41 is rotated clockwise about the boss 23b by the force of the torsion spring 42. By the rotation of each cassette opener 41, the lid 192 of the cassette 190 is opened by the lid opening piece portion 41a. This allows
The supply reel 193 has an opening 19 on the front side of the cassette 190.
It becomes detachable from 1a, and both sides of the supply reel 193 are held only by the pair of holders 133, 133. At this time, the lid opening piece portion 41a of each cassette opener 41 rotates to be positioned above the cassette 190 and press the upper surface side of the cassette 190 to prevent the cassette 190 from slipping upward from the supply tray 20. Accordingly, even if the printer body 2 is tilted, the position of the cassette 190 with respect to the paper feed tray 20 does not change.

In this state, when the motor 138 rotates the pair of gears 136, 136, the drive gears 131 meshed with the gears 136 rotate, and the holders 13 are attached to the tips.
Each reel transfer arm 132 having 3 rotates as shown in FIG. 23B, and the supply reel 193 is set at a predetermined position below the platen 100. This supply reel 193
As shown in FIG. 23A, the cassette 19
The take-up reel 194 of No. 0 is a pair of ribbon take-up head parts 51.
The ribbon 195 wound around the take-up ribbon 194 is pulled out without load because it is not fitted to the a and 51a.
In this case, the supply reel 193 is locked by locking the pair of reel lock claws 139 and 139 at both ends of the supply reel 193, and the supply reel 193 is conveyed to a predetermined position without pulling out the ribbon 195 from the supply reel 193 side. .. After the supply reel 193 has been conveyed, as shown in FIG. 28B, the reel lock claws 139 are disengaged from both ends of the supply reel 193, and the supply reel 193 becomes rotatable (the ribbon 195 from the supply reel 193 side). It will be possible to withdraw).

When the supply reel 193 is set as shown in FIG. 23, the pair of drive gears 62, 62 starts reverse rotation again, and as shown in FIG. 24, the optical sensor 3 on the left side in the figure.
When 9 detects the mark 29 on the rack 28, the pair of drive gears 62, 62 stop. This position is the paper feed tray 20
It becomes the set mode position of. When the supply reel set state shown in FIG. 23 is changed to the paper feed tray set mode shown in FIG. 24, each shift lever 52 has a torsion spring 54.
Is used to move each idler gear 51 to the take-up reel 194 side along the shaft 26c. As a result, the pair of idler gears 51 and the pair of drive gears 56, 56 mesh with each other, and the pair of ribbon winding head portions 51 a, 51 a are fitted to both sides of the winding reel 194, and the winding is performed by driving the motor 58. The finished ribbon 195 is wound on the reel 194. This state is the home position of the printer 1 when the photographic paper 9 in the printer body 2 and the cassette 190 are set. In this home position, the head 140 and the ribbon 195 are in the states shown in FIGS. 31A and 32A, and the ribbon guide braking mechanism 17
The brake shaft 173 is inserted into each outer peripheral concave surface 175b of the pair of cams 175, 175 of 0, and the ribbon guide roller 172 thereof is separated from the ribbon 195.

The ejection of the paper feed tray 20 performs the reverse operation. In this way, the ribbon 195 is wound around the paper feed tray 20 to detachably accommodate the cassette 190 having the reels 193 and 194, and the photographic paper 9 is detachably accommodated in front of the cassette 190. Since the 20 is put in and taken out of the printer main body 2, it is possible to easily replace the used cassette 120 and to easily attach the photographic printing paper 9 to improve the handleability. Can be made Further, since the cassette 190 is conveyed by the paper feed tray 20, the cassette 190 can be downsized, and the strength and rigidity of the cassette 190 are not required so much.

As shown in FIG. 29A, the paper chuck plate 105 is above the platen 100 at the time of paper feeding.
In this state, the paper chuck plate 105 stands by in an open state as shown in FIG. That is, the paper chuck plate 10
5 is normally lowered into the concave reinforcing plate 103 of the platen 100 (the paper chuck plate 105 is in the closed state). At this time, as shown in FIG. 29 (a), the pair of protruding piece portions 115 b, 115 b of the cam rotation stopper 115 are arranged so that
The cams 113 are locked by the respective hooks 113d of No. 3 and the rotation of each cam 113 is stopped. From this state, when the platen 100 rotates in the direction indicated by the dotted arrow in FIG. 29A, the pair of sliders 111 and 11 rotating relative to the platen 100.
Since each cam follower 111a of No. 1 moves along the cam groove hole 113e of each cam 113, the pair of sliders 111, 111 moves upward along the pair of guides 112, 112. (B)
As shown in (3), the paper chuck plate 105 is opened. With such a simple mechanism, the paper chuck plate 105 is
Can be opened and closed.

Next, the paper feed mode (paper feed position) is entered. As shown in FIG. 30, as the operation at the time of paper feeding, the front end of the uppermost photographic paper 9 on the paper feed plate 25 of the photographic paper storage chamber 22 of the paper feed tray 20 is fed by the upward rotation of the paper feed lever 90. When the paper board 25 swings, it is pushed up below the timing belt 85 of the paper feeding means 80 and abuts against the belt 85. Then, the drive roller 81 is rotated clockwise by the motor 95 in FIG. As a result, the photographic printing paper 9 is separated one by one by the separation roller 86 and guided to the paper feed passage 78, and hits the vertical portion 105b of the paper chuck plate 105 as shown in FIG. After that, when the head 140 moves toward the platen 100 to print by the head drive mechanism 150, the head cam gear 165, etc., the head cam gear 1
Cam 1 fixed to a shaft 163 that rotates by 65
84 rotates in the direction of the arrow shown in FIG. As a result, the cam rotation stop release lever 118 forcibly rotates the cam rotation stop operation plate 116, and the cam rotation stop 115
The pair of protruding pieces 115b, 115b of the
Separate from each hook 113d of 3,113. Then, the pair of sliders 111, 111 and the pair of guides 112, 112
A pair of extension coil springs 114, 11 interposed between the
Since the pair of sliders 111, 111 moves downward along the pair of guides 112, 112 by the pulling force of No. 4, the paper chuck plate 105 descends in the concave reinforcing plate 103 of the platen 100. As a result, the front end of the photographic paper 9 and the outer peripheral surface 100b of the platen 100 and the paper chuck plate 1 are
Sheet feeding is completed by chucking between the horizontal portions 105a of 05. As described above, since the moving direction of the paper chuck plate 105 is set to the normal direction of the platen 100, when the photographic paper 9 is chucked between the platen 100 and the horizontal portion 105a of the paper chuck plate 105, the photographic paper 9 is chucked. 9 is not easily broken or scratched. In addition, the horizontal portion 105 of the paper chuck plate 105
Since the cutout portion 100c of the platen 100 in which a moves up and down is reinforced by the reinforcing plate 103, elastic deformation is unlikely to occur in the vicinity of the cutout portion 100c, and even when printed on the photographic printing paper 9, unevenness in color density does not occur. .. Further, the paper chuck plate 10
5 is a horizontal portion 105a, a vertical portion 105b, both side portions 105
C and 105c are bent, and the horizontal part 10
Since 5a moves up and down in the reinforcing plate 103, it has sufficient strength.

The head 140 at the paper feeding position
The ribbon 195 is in the state shown in FIGS. 31 (a) and 32 (a). That is, the head cam gear 165 is rotated clockwise by the motor 166 in the direction of the arrow in FIG. 12, and the pair of drive gears 159, to which the pair of arms 152, 152 are fixed,
159 rotates counterclockwise. This head cam gear 1
The movement of 65 is the black mark 1 provided on the side surface of the gear 165.
The position is controlled by reading 65a with a reflection type optical sensor 168. As a result, FIG.
As shown in FIG. 3, when the pair of arms 152, 152 rotate around the pair of support shafts 151, 151, the shaft 1
57 linearly moves to the lower side of the platen 100 along the slot 158a of each guide 158. Further, by rotating the head cam gear 165 in the clockwise direction, the pair of cams 1
75 and 175 are gear groups (164, 180, 181, 1
83) and rotates counterclockwise as indicated by the arrow in FIG. Thereby, the outer peripheral surface 175a of each cam 175 is
32 pushes up the brake shaft 173 fixed in the middle of the pair of brake arms 171, 171.
As shown in (b), a pair of brake arms 171 and 1
The ribbon guide roller 172 rotatably supported at the tip of the plate 71 moves downward (to the head 140 side) to move the platen 1
Release ribbon 195 from 00. Pair of brake arms 1
The brake shafts 173 and 171 are stopped at this position because the brake shaft 173 is positioned on the outer peripheral surface 175a of each cam 175. In this state, the printing paper 9 is prevented from being wound around the platen 100 and coming into contact with the ribbon 195 as described above, and the ribbon 195 does not stick to the platen 100 side.

The pair of brake arms 171, 171
Moves with the pair of arms 152, 152 by the movement of the shaft 157 while maintaining the position of the above-mentioned paper feeding position (because the brake shaft 173 is on the outer peripheral surface 175a of the cam 175 even if each cam 175 rotates). A brake roller 177 rotatably supported by the second head holder 160 via a pair of arms 176, 176 and the like guides the ribbon guide roller 172 until just before the ribbon 195 is inserted, as shown in FIG. Come to the side. In this state, since the brake roller 177 is not in contact with the ribbon guide roller 172, the braking force is not applied to the ribbon 195, so that the ribbon 195 is smoothly fed to the take-up reel 194 (ribbon feed position). .. As shown in the printing positions of FIGS. 31D and 32D, when the shaft 157 further moves and reaches the end of the slot 158a of each guide 158, the head 1
40 is pressed against the platen 100 via the photographic paper 9 and the ribbon 195. At this time, FIG. 31 (d) and FIG. 32 (d)
As shown in FIG. 6, the shaft 101 of the platen 100, the side pieces 154 of the head holder 153, the pin pivot points of the links 156, and the shaft 157 are positioned in a straight line D, so that head crimping is completed. Shaft 157 is each guide 158
Since it is stopped at the end of the slot 158a of the optical sensor 1
Even if 68 malfunctions, the above linear relationship is not exceeded,
The head 140 does not overrun to the paper feed tray 20 side any more. Then, the head 1 is attached to the platen 100.
At the same time as 40 comes into contact with each other, a predetermined pressure is generated by each compression coil spring 162, and the ribbon 195 is sandwiched between the stopped ribbon guide roller 172 and the brake roller 1.
77 comes into contact with the ribbon 195 so that a predetermined braking force can be applied to the ribbon 195. As a result, the ribbon 1 being printed
The tension of 95 can be a constant tension which is not affected by the change of the winding diameter of the take-up reel 194.
It is possible to prevent wrinkles of No. 5 from occurring and to obtain a stable and high-quality print. Further, since the parallelism with the head 140 can be maintained without being affected by variations in parts, wrinkles of the ribbon 195 can be prevented from occurring and stable and high-quality printing can be achieved. Furthermore, with a small driving force, the head 14
It is possible to secure a large movement amount of 0, and it is possible to secure a large movement amount of the head even when the printer body 2 is made thin.

Thereafter, three colors of yellow (Y), magenta (M) and cyan (C) are repeatedly printed on the printing paper 9 through the ribbon 195 three times, and they are overlapped to form one color printing. When this printing is completed, the sheet discharge mode is entered next.

As for the operation at the time of discharging the paper, the paper feed lever 90 is lowered to the lower side, and when the printing is completed, the rear end of the printing paper 9'wrapped around the outer peripheral surface 100b of the platen 100 is
When the platen 100 is inverted, the platen 100 is guided to the paper discharge passage 79 and sandwiched between the belt 85 and the paper discharge roller 86. At this time, as shown in FIG. 33, the flap 92 is in a horizontal state, and the paper ejection roller 87 is also rotated by the rotation of the belt 85 in the same direction as when the paper is fed, so that the printing paper 9 ′ is placed on the paper ejection tray 70. And the printing is completed. In this way, the paper discharge roller 87 is brought into contact with the belt 85 so that the paper feeding means 80 functions as it is as a paper discharge means. Therefore, the structure is simple and easy to assemble, the printer body 2 is made small and thin, and the number of parts is reduced. ,
Cost reduction can be realized.

Further, as shown in FIG. 34, the flap 92
When the sheet is turned up, the printing paper 9'printed once is returned to the printing paper storage chamber 22 of the paper feed tray 20 again. Then, the print button 17 on the upper right side of the front panel 3 of the printer main body 2 is pressed to perform overprinting several times. The memory input button 1 on the lower right side of the front panel 3 is referred to as the number of times of printing several times.
When inputting by 8, the flap 92 faces upward. When the number of images input by the memory input button 18 is completed, the flaps 92 become horizontal, and the photographic paper 9'printed several times on one sheet is discharged onto the discharge tray 70 as usual. To be done.

As shown in FIGS. 2 and 10, the discharge tray 70 includes first to third guide pieces 14a to 14 provided on the front side of the pair of side plates 12 of the chassis 10.
Since the pair of lock claws 71, 71 having the elastic force on both sides of the paper discharge tray 70 are guided along the line c and are engaged with and disengaged from the pair of first guide pieces 14a, 14a, they can be positioned, attached and detached. As shown in FIG. 35, the pair of side plates 1
When the paper discharge tray 70 is removed from between 2 and 12, the paper discharge port 6
Together with the paper feed port 5 form a large opening 4 to expose the paper feed tray 20, from which the hand and the printing paper 9 are exposed.
Can be placed on the paper feed tray 20. As a result, a large number of photographic papers 9 can be replenished in the photographic paper storage chamber 22 of the paper feed tray 20 while the paper feed tray 20 is still mounted in the printer body 2. Also, when it is desired to print several sheets of different types of printing paper (postcard, OHP, etc.), manual insertion can be performed. Further, the jamming process of the printing papers 9 and 9 ′ at the time of feeding and discharging can be easily performed from the discharge port 6, which is convenient.

As described above, when the paper feed tray 20 is pulled into the printer main body 2, the pair of rails 26, 2 is used.
6 and the pair of racks 28, 28 move integrally, and when the paper feed tray 20 is set at a predetermined position in the printer body 2, the pair of tray lock mechanisms 30, 30 causes the pair of rails 26, 26, that is, the pair of rails 26, 26. The paper feed tray 20 is locked so that it does not come out and does not move during printing. By further moving the pair of racks 28, 28 from the locked state of the pair of rails 26, 26 to the inside of the printer main body 2,
A pair of lid opening mechanisms 40 attached to the paper feed tray 20,
The lid 192 of the cassette 190 is opened by 40, and the ribbon winding head portions 51a of the pair of reel drive mechanisms 50, 50 are fitted to both sides of the winding reel 194 of the cassette 190. In this way, the pair of locked rails 26, 2
Since the pair of racks 28, 28 are further moved with respect to 6, the paper feed tray 20 is set at a predetermined position in the printer body 2 via the pair of rails 26, 26,
(1) Locking the paper feed tray 20, (2) Cassette 190
Open the lid 192, (3) Ribbon winding head 51a
The cassette 190 can be easily fitted to the take-up reel 194.

According to the above embodiment, the switch detects whether or not the supply reel is gripped by the reel transfer means for transferring the supply reel to the platen side.
As shown in (a), a transmission type optical sensor 134 ',
The reflection type optical sensor 134 ″ shown in FIG. 38 (b) may be used. Further, as shown in FIG. 39, it can be applied to a cassette 190 ′ that does not pull out the ink ribbon, and the cassette 190 ′ and the printing paper 9 can be used. You may make it accommodate side by side in the supply tray 20 '.

[0050]

As described above, according to the present invention, the ink ribbon cassette having the reel around which the ink ribbon is wound and the photographic paper are detachably housed in the paper feed tray. The replacement work can be easily performed, and the photographic paper mounting work can be easily performed, so that the handleability can be further improved. Further, since the tray drive mechanism for taking the paper feed tray in and out of the printer body is provided, the usability can be improved by automatically taking the paper feed tray in and out of the printer body by this tray drive mechanism. Further, since the paper feed tray pulled into a predetermined position in the printer main body is locked to the printer main body by the tray lock mechanism, there is no concern that the paper feed tray moves during printing, which does not adversely affect printing.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a color printer showing an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the printer.

FIG. 3 is a plan view of the same main part.

FIG. 4 is a left side view of the same main part.

FIG. 5 is a right side view of the main part.

FIG. 6 is a perspective view of a paper feed tray portion of the printer.

FIG. 7 is a plan view of the paper feed tray portion.

FIG. 8 is an exploded perspective view of a main part of the paper feeding tray.

FIG. 9A is a plan view of a main part of a paper feed tray portion,
(B) is a side view of the main part.

10A is a plan view of a paper discharge tray portion, and FIG. 10B is a side view of the same portion.

FIG. 11 is an exploded perspective view of a main part of the platen.

FIG. 12 is a perspective view of a head drive mechanism.

FIG. 13 is a perspective view of a cassette.

FIG. 14 is an exploded perspective view of the cassette.

15A is a front view of the cassette, and FIG. 15B is a plan view of the cassette.

FIG. 16 (a) is a side view of the cassette, (b),
(C), (d) is sectional drawing of each part of a cassette.

FIG. 17 is a schematic explanatory view showing a state before the cassette and the printing paper are put in the supply tray of the printer.

FIG. 18 (a) is a schematic explanatory diagram before storing a paper feed tray,
(B) is a schematic explanatory view after storing the paper feed tray.

19A is a plan view of an initial state in which the paper feed tray is outside the printer main body, and FIG. 19A is a side view of the same.

FIG. 20A is a plan view at the time of starting the insertion of the paper feed tray,
(B) is the same side view.

FIG. 21 (a) is a plan view of the paper feed tray in a locked state,
(B) is the same side view.

22A is a plan view of the supply reel in the carrying mode, and FIG. 22B is a side view of the same.

FIG. 23 (a) is a plan view of the supply reel when set,
(B) is the same side view.

FIG. 24A is a plan view of the paper feed tray in a set mode, and FIG. 24B is a side view of the same.

FIG. 25 (a) is a plan view of the reel transporting means, and FIG. 25 (b) is a side view thereof.

FIG. 26A is a plan view showing a state where the supply reel is held by the reel transfer means, and FIG.

27A is a plan view of the cassette with the lid opened, and FIG. 27B is a side view of the same.

FIG. 28 (a) is a plan view showing a feeding state of a supply reel by reel feeding means, and FIG. 28 (b) is a side view thereof.

FIG. 29 (a) is a side view showing a locked state of the cam,
FIG. 6B is a side view showing the unlocked state of the cam.

FIG. 30 is a schematic explanatory view showing a paper feeding state of the printer.

31A is an explanatory diagram showing a home position of a head drive mechanism, FIG. 31B is an explanatory diagram showing a supply position of the mechanism, FIG. 31C is an explanatory diagram showing a ribbon feeding position of the mechanism, and FIG. ) Is an explanatory view showing a printing position of the mechanism.

32A is an explanatory diagram showing a home position of the ribbon guide braking mechanism, FIG. 32B is an explanatory diagram showing a supply position of the mechanism, and FIG. 32C is an explanatory diagram showing a ribbon feeding position of the mechanism; FIG. 3D is an explanatory view showing a printing position of the mechanism.

FIG. 33 is a schematic explanatory view showing a discharged state of the printing paper after the printing is completed.

FIG. 34 is a schematic explanatory view showing a state in which the photographic printing paper is distributed to the paper feed tray side.

FIG. 35 is a schematic explanatory view of a state in which the paper discharge tray is removed.

FIG. 36 is a perspective view of the printer with a paper feed tray pulled out.

FIG. 37 is a perspective view of the printer with a paper feed tray accommodated therein.

38 (a) and 38 (b) are explanatory views showing other modes of the means for detecting the holding state of the supply reel by the reel carrying means.

FIG. 39 is a perspective view of a printer according to another embodiment.

FIG. 40 is a schematic sectional view of a cassette used in a conventional printer.

[Explanation of symbols]

1 ... Printer, 2 ... Printer main body, 9 ... Printing paper, 20 ...
Paper feed tray, 30 ... Tray lock mechanism, 60 ... Tray drive mechanism, 100 ... Platen, 140 ... Head, 190 ...
Cassette, 193, 194 ... Reel, 195 ... Ink ribbon.

Claims (1)

[Claims] 1. A printer that carries in a reel wound with an ink ribbon and a printing paper into the printer body, respectively, and prints through a platen and a head arranged in the printer body. A paper feed tray is provided so that it can be freely taken in and out, an ink ribbon cassette having the above-mentioned reel and photographic paper are detachably accommodated on the paper feed tray, and a tray drive mechanism for taking the paper feed tray in and out is provided in the printer body. At the same time, a printer is provided with a tray lock mechanism for locking the paper feed tray when the paper feed tray is pulled into a predetermined position in the printer body.