JPS61220876A - Recorder - Google Patents

Abstract

PURPOSE:To provide a recorder which does not generates useless margins, by providing a paper cutter between arms for supporting a bail with rollers. CONSTITUTION:The paper cutter 51 is fixed to the tips of different paper bail arms 50-1c, 50-2c, and the surface thereof on the operator's side is provided with a scale 51a for indicating a printing position. Sliders 52 are slidably fitted to the cutter 51, and bail rollers 53 are rotatably supported thereon. The bail rollers 53 thus supported between the paper bail arms 50-1, 50-2 are pressed against the platen 1 by being energized by spring SP. Accordingly, since the paper cutter is provided between the arms for supporting the bail with rollers, no useless margins are generated on a recording paper.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a recording apparatus in which a bail roller presses recording paper against a platen.

(Conventional Example) Generally, a recording apparatus includes a bail roller to prevent the recording paper at the recording position from lifting off from the platen. This bail roller is used when wrapping the recording paper around the platen.
Therefore, for example, in a recording device that has a loading mechanism that automatically sets the recording paper on the platen, it is necessary to have a power source to raise and lower the bail roller. There is a bale roller that is raised and lowered.

The cutter for cutting the recording paper has to be provided more carefully than the bailer, which inevitably increases the printing margin and has the disadvantage that the recording paper is wasted.

(Objective) The present invention eliminates the above-mentioned drawbacks, and aims to provide a recording device that does not generate unnecessary blank spaces.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 show the mechanical configuration of an embodiment of the present invention,
1 is a platen formed in a cylindrical shape and fixed to the platen shaft 2. The platen shaft 2 is rotatably supported between side plates (not shown), and a paper feed motor 3 is coupled to one end.

A platen gear 4 is fixed to the platen shaft 2.

Reference numeral 5 denotes an L-shaped rocking plate, which is rotatably supported on the platen shaft 2 with a moderate amount of friction, and one arm has an A% idle gear 6 which meshes with the platen gear 4 through shafts 8 and 9. Also, a B-N-idle gear 7 which meshes with the A-A idle gear 6 is rotatably supported. Further, the other arm portion 5a of the diaphragm 5 is provided with a hook portion 10 of a lock lever 10 in order to restrict the rotation of the oscillating plate 5 in the counterclockwise direction (anti-A direction).
a is engaged, and a stopper pin 11 protruding from a side plate (not shown) is in contact with the opposite surface of the arm portion 5a. The rocking plate 5 does not rotate no matter which direction it rotates.

The lock lever 10 is rotatably supported by a lock lever shaft 12, and is biased by a lock lever spring 13 in a direction into which it engages with the swing plate 5. 14.15 is a tractor lever, which is rotatably supported on the Plato shaft 2, and at the other end,
A tractor shaft 16 is rotatably supported. The tractor shaft 16 has a circular cross section at both ends so as to be rotatable, and the middle section is a square shaft to enable transmission of power. A tractor gear 17 is fixed to the tractor shaft 16, and meshes with a tractor lever 14.15 (rotatably supported on a side plate so as to constantly mesh with the platen gear 4). Reference numeral 19 is a paper ejection roller and paper receiver. It is inserted into the square shaft portion of the tractor shaft 16, can move freely in the axial direction, and rotates together with the tractor shaft 16. The paper ejection roller 19 is made of a material with a high surface friction coefficient such as rubber, and its outer peripheral surface is provided with irregularities at a predetermined pitch for paper ejection.

Reference numeral 20 denotes a pin wheel constituting the tractor, which is rotatably held by the tractor guide 21 and slidably inserted into the square shaft portion of the tractor shaft 16. 22 is a tractor which can be opened and closed around a hinge pin 23. 24 is a tractor guide rotation stopper shaft, and a guide plate 25
．． 26 to stop the tractor guide 21 from rotating about the shaft 16. The guide plates 25 and 26 are rotatably supported on the tractor shaft 16.

A front guide shaft 27 is supported between side plates (not shown). 28 is a rear guide shaft, which is also supported between side plates (not shown). 29 is a carrier, and the front guide shaft 27
, is slidably supported by a rear guide shaft 28, and an ink ribbon 32 having four layers of color bands is housed in the upper part of the print head 30 and an ink ribbon cassette 31 in the mounting direction. 31a to arm 29 of carrier 29
The print head 30 is rotatably supported by a.
It is possible to change the usage position of the ribbon 32 in the vertical direction at the tip. Here, as shown in FIG. 2, rack teeth 31b and 31c are provided near the printing part of the ink ribbon cassette 31 to switch the ribbon cassette according to the color of the ribbon.
, 31d, and 31e are provided, and a projection 31f that is pushed up by a switching arm, which will be described later, is also provided.

A control rail 33 is attached to the yoke 34. A conical cam surface 35a having an end portion 35b is provided at the tip of the plunger 35 of the control solenoid 33.

Reference numeral 36 designates a switching arm, which includes a switching pin 36a that engages with a cam plate to be described later, a pressing end 36b that comes into contact with the protrusion 31f of the ribbon cassette 31 mentioned above, a holder 36c that comes into contact with the plunger end 35b of the control solenoid 33 mentioned above, and a yoke. It is rotatably supported on an arm shaft 37 fixed to 34. 38 is a switching arm spring, and arm shaft 37
is inserted into the switching arm 36, and the other end is inserted into the carrier 2.
9 is fixed to the hook portion (not shown) of the switching arm 36.
is always urged in the direction of being pressed against the arm stopper 39. The arm stopper 39 is provided to protrude from the yoke 34. Further, the switching arm spring 38 uses its coil portion to constantly press the switching arm 36 against the plunger one end 35b.

40 is a cassette lock lever rotatably supported on the arm shaft 37, and one end 40& is a rack tooth 3 of the ribbon cassette.
It is always biased by a spring 41 in the direction of engagement with 1b-e. The other end of the cassette lock lever 40 is
The tip 35b of the conical cam surface 35a of the plunger 35
The control solenoid 33 is energized.

When the plunger 35 is sucked and the plunger end 35b is made to protrude, the one-cone cam surface 35a causes the plunger end 35b to protrude.

The distal end 40a of the cassette lock lever 40 can be rotated in a direction (direction B) away from the rack teeth 31 bxe to release the engagement with the rack teeth. Also, at the same time switching 7
- the switching pin 36a presses the cam 36, and the switching pin 36a
7 is fixed at the position where it engages. 42 is a screw that fixes the yoke 34 to a predetermined position on the carrier 29.

Referring again to FIG. 1, reference numeral 43 denotes a tension pulley which is rotatably supported by a pulley shaft 44 protruding from the bottom plate of the printer (not shown). 45 is a carrier drive motor, which is a stepper motor that rotates in synchronization with a predetermined pulse. A timing belt 46 is stretched between the tension pulley 43 and a motor pulley (not shown), and one end is fixed to the lower part of the carrier 29. According to the rotation angle of the carrier motor 45, the carrier 29 is rotated by a predetermined amount. It can be moved in the digit direction (guide axis direction).

Reference numeral 47 is the cam plate mentioned above, and the pilot hole 47a, which can be moved in the direction of one digit, is fixed, and this elongated hole 47& is moved by the slide shaft 48.
They are supported so that they do not fall through. The slide shaft 48 is fixed to the bottom plate of the printer (not shown).

The cam plate 47 includes a ribbon switching cam 47b, a cam portion 47C1 for rotating the left paper bail arm 50-1, which will be described later, and a cam portion 47C1 for rotating the lock lever 10, which will be described later, and a right paper bail arm 50-, which will be described later. It has a cam part 47d for rotating 2, and also has an engaging part 47f. Furthermore, the cam plate 47 is integrally provided with a stopper plate 4.
7e is provided, and is pulled in the C direction by a return spring 49.

Reference numerals 50-1 and 50-2 denote the aforementioned paper bail arm, which is rotatably supported at a predetermined position on the front guide shaft 27, and is connected to the aforementioned cam portion 47c of the cam plate 47,
The arms 5O-1a and 5O-2a contact the 47d, and the rotation 5 is restricted from rotating by contacting the left and right stopper plates 47e.
1 is a paper cutter and the other arm 5 of each paper bale arm
It is fixed to the tip of 0-1c, 5O-2c,
A scale 51a indicating the printing position is engraved on the front side.

A slider 52 is slidably fitted to the cutter 51 with a predetermined frictional force, and rotatably holds the bail roller 53 as shown in FIG. The slider 52 is made of a resilient material such as plastic.
The bail roller 53, which is held between the paper bail arms 50-1 and 50-2 in a manner of 0 or more, generates a fitting pressure against the cutter 51 and prevents the bail roller 53 from hitting unevenly. -2 is pressed against the platen 1 by being biased clockwise by the spring SP. 54 is a paper pan for guiding the printing paper.
It is fixed to a side plate (not shown).

Pinch rollers 55a and 55b are provided with several films at positions facing the platen 1, and 1,% -y-/ (not shown).
+l +l// I#1-11 '5 M m-)v
-n m Masashichihpr-r is here.

Reference numeral 56 denotes a cutter cover, which is rotatably supported by the exterior case of the printer, and when the above-mentioned paper ejection roller 19 is located above, it is biased by a spring (not shown) to press the surface of the cutter cover and release the recording paper onto the paper ejection roller 19. It has the function of imposing.

In FIG. 1, reference numeral 57 denotes a paper feed cassette detection switch provided on the mounting plate 58, and the switch is turned on when a paper feed cassette, which will be described later, is attached.

58 is a mounting plate provided below the bin wheel 20;
It has a groove 58a for positioning the paper feed cassette and is fixed to a bottom plate (not shown). Reference numeral 59 denotes a paper fish detection switch composed of a reflective photointerrupter, which is fixed to a bottom plate (not shown).

FIG. 3 shows a paper feed cassette, and in FIG. 1, 60 is a cassette case for storing a plurality of cut sheets 61, and an upper lid 64, which will be described later, is held by hinges 60b, 60b so as to be openable and closable in the D direction. There is. The cassette case 60 also has a hook portion 60 that engages with a lock claw 64a of the upper cover 64.
a, and the groove 58a of the printer mounting plate 58.

Claw portions 60c, 60c, which fit into 58a, are provided protruding from both sides, respectively. Further, as shown in FIG. 4, the cassette case 60 includes a push plate 62 for lifting the cut paper upward and pressing it against a paper feed roller 65, which will be described later, and a spring 68 for applying pressure to the push plate 62. Separation claws 63 for separating the sheets one by one are attached to both ends.

As described above, the upper lid 64 is rotatably attached to the hinge portion 60b of the cassette case 60, but normally the hook portion 60a is engaged with the lock claw 64a to prevent it from opening. 65 is a paper feed roller and the paper feed roller shaft 6
6, and is made of a material with a high coefficient of friction such as rubber. The paper feed roller shaft 66 is rotatably supported by the upper pin gear 64, and has a paper feed gear 67 fixed to its end.

This paper feed gear 67 is in the position shown in FIG. 9(a) when the paper feed cassette is attached to the mounting plate 58 of the printer, and can mesh with the B idle gear 7.

FIG. 5 shows the electrical configuration of the printer of this embodiment. Print data and command data are input into the printer from a host computer connected via an interface unit 70, and are temporarily stored in a RAM 72 via a central processing circuit (hereinafter referred to as CPU) 71. Roughly speaking, the CPU 71 sequentially reads data stored in the RAM 72 according to print commands, and reads out the data stored in the RAM 72 in accordance with the program stored in the ROM 73.
4. Head driver 75. The ribbon driver 76 and the platen driver 77 are operated to drive and control the carrier motor 45° head 30, the ink ribbon feed motor 78, and the paper feed motor 3 to print on the paper on the platen 1. , a key operation unit 80 including a line feed key, an online key, an autoloading key 79, etc., and a detection unit 81 . that detects the position of the carrier 29 in the digit direction. Signals from the paper fish switch 59 and the cassette detection switch 57 are also constantly monitored, and optimal printing control is executed based on the detection signals from each part.

In this embodiment, the driver 82 and the control solenoid 33 are operated to shift the ink ribbon force set 31 in the vertical direction to enable multicolor printing, but what is next to print in the desired color? A memory area 83 is provided in the RAM 72 to store whether printing is to be performed in color. RAM7
In addition to this, many memory areas necessary for printing control are formed in the printer 2.

In this embodiment, it is possible to select whether the fan-hold paper feed tractor is used to feed paper in a push-type manner or in a pull-type manner, and auto-loading (
In addition to the automatic paper loading function, automatic paper feeding operation for cut sheets can also be performed by installing a paper feeding cassette.The correlation diagrams in Figs. 6 to 9 and 9. 1
This will be explained using the timing chart in FIG. 0 and the flowchart in FIG.

Push-in method> When using the tractor with the normal fan-hold paper push-in method, as shown in Figure 8 (a), the tractor guide 2
1 is set behind the platen 1 and fixed at a predetermined position by a positioning member such as a click plate (not shown).

At this time, the tractor gear 17 meshes with the B idle gear 7, and the forward rotation (arrow a) of the platen l given by the paper feed motor 3 is caused by the A idle gear 6 and the B idle gear 7.
rotate in the direction of arrow d. fan hold paper 61
is sent on the upper surface of the bin wheel 20, wraps around the pline 1, and is discharged upward.

The advantage of this pushing method is that there is no need to pull the paper that has passed through the platen 1 to the tractor as in the pulling method, so the paper can be cut immediately after passing the platen, eliminating the waste of 1 sheet of paper. In the embodiment, a paper cutter is provided at approximately the same position as the bail roller 53, thereby eliminating wasteful use of paper as much as possible.

Tensioning method> In the case of using the tensioning method, the truck axle load 6 is lifted above the platen 1 and fixed at a predetermined position shown in FIG. 8Cb') by a positioning member (not shown). At this time, the tractor gear 17 meshes with the C idle gear 18, and the direction of one rotation is the same as the platen 1, which is the f direction. The fan-hold paper 61 inserted from the rear of the printer is wound around the platen 1 and then passed through the upper surface of the bin wheel 20 and discharged backward.

In both cases of pushing and pulling as described above, the swing plate 5 is stopped from making one rotation by the hook portion 10a of the lock lever 10 and the stopper 11.

Autoloading> When autoloading paper, the operator loads the cut paper 61-1 from behind the platen onto the platen l.
and the pinch roller 55a, and press the autoloading key 79. FIG. 1θ shows the timing of the operation of each part during this autoloading operation.

Move it in the Y direction (Fig. 1) and set it to the home position (90
) L, then moved in the X direction and stopped between the cam portion 47b and the engaging portion 47f of the cam plate 47 (91).Here, the control solenoid 33 is energized (92), and the plunger 35 is activated. When the ribbon cassette 31 is sucked, the rack teeth 31bNe of the ribbon cassette 31 cause the cassette lock/
Since <-40 is removed, the ribbon cassette 31 is under its own weight,
It falls to the lowest position due to a spring (not shown) (94)
, and the switching arm 36 is connected to the tip 35b of the plunger 35.
is pushed out along the shaft 37 toward the platen against the arm spring 38. Therefore, when the carrier 29 is further moved in the X direction, the switching pin 36a of the switching arm 36 and the engaging portion 47f of the cam plate 47 come into contact with each other, and in synchronization with the movement of the carrier 29, the cam plate 47 also moves in the X direction. Moving. As the cam plate 47 moves, the stopper plates 47e and 47e also move, disengaging the paper bail arm from rotation stoppers 5O-1b and 5O-2b, and allowing the paper bail arm to rotate. The carrier 29 stops moving near the center of the printing range (95).

Also, as the cam plate 47 moves, the cam portions 47c, 47
arm 5 of paper bale arm 50-1.50-2 at d
Push up O-1a and 5O-2a and rotate the paper bail arms 50-1 and 50-2 in a direction away from the platen 1. At the stop position of the carrier 29, the cutter 51,
The paper bail roller 53 is fixed at a position pre-separated from the platen 1 (see FIG. 4).The platen 1 is now rotated forward (in the direction A in FIG. 1) (96), and the cut paper 61- 1 is inserted between the platen 1 and the pinch roller 55a, and the paper is fed by a predetermined amount. At this time, the leading edge of the paper is detected by the paper fish detection switch 59 provided at the bottom of the platen, and the paper is further rotated by a predetermined amount to cut the paper. Rotation of the platen 1 is stopped at a position where the leading edge of the paper is slightly above 51.

When the carrier 29 is returned to the Y direction, the cam plate 47 follows the carrier 29 and returns due to the return spring 49, so the cutter 51 and paper bail roller 53, which were far away from the platen 1, also come into contact with the cut paper 61-1, and the platen Press 1.

When the carrier 29 is roughly moved in the Y direction, the cam plate 47
The long shaft 47a hits the slide shaft 48 and stops (9
7), when the carrier 29 is further moved in the Y direction, the switching bin 36a of the switching arm 36 and the ribbon switching cam 47
b comes into contact with each other, and the switching arm 36 rotates clockwise in FIG.
Push up to change the printing position of the ribbon 32.

The desired color band is one of the rack teeth 31b to 31e,
By engaging with the cassette lock lever tip 40a, it is stopped at the printing position.

Further, the desired engagement between the rack teeth and the lock lever is determined by the amount of movement (9B) of the carrier 29, and is fixed in that state by turning off the power to the control solenoid 33 (99), and the ribbon cassette 1 is held in that position. Retained. When the control solenoid 33 is de-energized, the switching arm 36 is rotated about the shaft 37 by the switching arm spring 38 and further retreated in the thrust direction of the shaft 37.

The contact with the cam plate 4-7 is released.

When it is not necessary to switch the ribbon cassette 31 after auto-paper setting, the control solenoid 33 may be de-energized during the return process of the carrier 29 from the center position (95) to the home position.

As a result, even if the carrier 29 moves back, the switching pin 38a of the switching arm 36 does not engage with the cam plate 47.
The ribbon force set 31 remains stationary, and the color band of the top layer of the ink ribbon always faces the print position, which is the front side of the print head. The most efficient printing is achieved by placing black in this top layer color band and placing yellow and cyan magenta in the other three color bands.

Automatic paper feeding> Next, to explain the automatic paper feeding operation, as shown in FIG. do. As a result, the paper feed cassette detection switch 57 is turned on, and the attachment of the paper feed cassette is electrically confirmed.

FIG. 11 shows the operation timing of each part during automatic paper feeding. When the autoloading key 79 is pressed while the paper cassette detection switch 57 is ON, the CPU 71 receives an automatic paper feeding signal. The automatic paper feeding operation described below is started. still.

The signal for starting this automatic paper feeding operation is also input from the host computer connected via the interface section 70, and is especially given from the computer when a new cut sheet is loaded in order to continue printing during a printing operation. .

When the automatic paper feed signal is input, the cut paper 61-
The carrier 29 returns to the home position in the same way as during the autoloading operation in step 1. Also, in response to the automatic paper feed signal, the platen 1 starts normal rotation (in the direction of the first prisoner) (93), and the paper crow arm moves toward the platen l. It continues to rotate until just before it leaves. As a result, the paper on the platen is completely ejected to the outside.

The cut paper 61 discharged to the outside by the platen 1 is sandwiched with an appropriate frictional force between the paper discharge roller 19 set above the platen and the inner cover 56 as shown in FIG.

The sheet is further fed upward and stored in the stocker 68 by the surface protrusion of the sheet discharge roller 19.

The stocker 68 is attached to the outer case of the printer so as to be able to rotate once so as not to get in the way when feeding the fan-hold paper.

Further, the rotation of this paper ejection roller 19 is controlled by gear train 4.18.1.
7, and is the same rotation in the F direction as the rotation of the platen l. Furthermore, the paper feed speed of the paper discharge roller 19 is set to be equal to or slightly faster than that of the platen 1, so that the cut paper is reliably delivered to the stocker 68.
It is designed to be discharged.

A trigger for the platen 1 to start rotating in the forward direction for paper ejection during the printing operation is given by the print line counter provided in the RAM 72 described above. That is,
When the printing of the last line of cut paper is completed, the CPU 71
starts the forward rotation of the platen l, and the cut paper 61
-1 is rotated by a predetermined amount sufficient to be discharged into the stocker 68.

Next, while the carrier 29 is moving from the home position in the X direction, the cam plate 47 also moves to the aforementioned switching pin 36a.
The cam portion 47d of the cam plate 47 pushes up one end lOb of the lock lever 10, and the engagement between the lock lever 1O and the rocking plate 5 is disengaged. ing. Therefore, at this point, move the platen in the opposite direction (
When the rocking plate 5 rotates in the center direction (FIG. 9(a)) (100), the rocking plate 5 rotates in the same direction due to the friction with the platen shaft 2, and the B idle gear 7 and paper feed gear 67 mesh with each other to feed the paper. The paper gear 67 rotates in the E direction.

FIG. 4 shows the platen so that the paper feed roller 65 rotates in the direction E by a predetermined amount, and the uppermost cut paper 61-1 stored in the paper feed cassette is pulled out by the separating claw 63 to form a predetermined loop. 1 and the pinch roller 55a.

Incidentally, the platen 1 against which the cut paper collides is rotated in the D direction, which is preferable for forming a proper loop.

After this reverse rotation, the carrier 29 is stopped at the center and the platen 1 is rotated forward (rotation in the A direction) by a predetermined amount (the amount by which the cut paper is fed to the printing start position), as in the autoloading of the cut paper described above. ) (101), and the carrier 29 enters the return operation. When platen l rotates forward.

The swing plate 5 comes into contact with the stopper pin 11 and stops, and when the cam plate 47 returns with the return of the carrier 29, the lock lever 10 engages with the swing plate 5. It is fixed at the position shown in FIG. 9(b).

As the paper feed gear 67 is disengaged from the B idle gear 7 by the forward rotation of the platen as described above, it becomes free, and even if the cut paper 61 is fed by the platen l during the subsequent printing operation, it will not synchronize with the paper. It can be rotated.

By repeating the above-described paper feeding and discharging operations, cut sheets are automatically fed and discharged continuously, but it is also possible to always perform the paper discharging operation before performing the paper feeding operation.

FIG. 12 is a flowchart showing automatic loading or automatic sheet feeding/discharging operation. When the step S2 is turned on, it is stored in the RAM to determine which color band to print next in step S2.
72 in the memory area 53.

After that, in step S3, the carrier 29 is returned to the home position, and then moved again in the X direction in FIG.
In step 4, it is detected whether or not a paper feed cassette is installed. When the carrier 29 is not installed, it is determined that it is in autoloading mode and the carrier 29 is moved to the position shown in FIG.
) (Step S5), the control solenoid 33 is turned ON (Step S6), and the carrier 29 is moved again to the position corresponding to (95) in FIG. 9 (Step S7). Due to the movement of the carrier in S7, the paper bail arm 50-1.5
0-2 is separated from the platen 1, and the platen 1 is rotated in the normal direction in step S8.

When the paper switch 59 detects the leading edge of the cut paper 61-1 (step S9), the platen is further rotated in the normal direction so as to feed the cut paper from this position to the printing start position (step 5).
10), After this, in step Sll, the carrier 29
is returned to the Y direction, the paper bail arms 50-1 and 50-2 are rotated in the platen direction, and the paper bail roller 53 is pressed against the platen 1 through the cut paper.

During the return of the carrier 29, the CPU 71 determines whether or not the next printing will involve switching the ribbon.
Step 512 determines whether to print using the top layer of the
Judgment shall be made. When ribbon switching is not to be performed, the control solenoid 33 is turned off before entering the ribbon switching process (Step S13), and the printing operation is started after the carrier 29 is returned to the home position (Step 514).
Also, when there is ribbon switching in step 312,
In step 515, the control solenoid is turned on until the desired color band faces the printing position according to the contents of the memory area 83, and at the time the solenoid is turned 0FFI, - (the carrier 29 is returned to the home position, and step S14 is entered.

On the other hand, when the paper feed cassette switch 57 is turned on in step S4, it is determined that the automatic paper feed mode is in effect, and in step 316, the cut paper must remain on the platen 1, so the platen is rotated forward by a predetermined amount. let me,
Eject the cut paper.

After that, in steps 517 to S20, the cut paper 61-1 in the paper feed cassette is transferred between the platen 1 and the pinch roller 55a.
A loop is formed in between, and the process proceeds to step S8.

As mentioned above, in this embodiment, the paper ejection roller and paper ejection tray, which were previously required for the automatic paper feeder as an option, are installed so that automatic paper feeding and ejection can be performed simply by installing the paper cassette. The paper feed roller is attached to the paper feed cassette, and the paper feed roller is attached to the paper feed cassette. Also, the paper feed roller 65. The entire driving force for the paper ejection roller 19 and the tractor can be taken out from the drive source of the platen, thereby further simplifying the entire structure.

Further, in this embodiment, since the paper ejection roller 19 and the tractor bin wheel 2o are provided on the common shaft 16, the entire spacer can be significantly reduced in size.

Further, in this embodiment, the paper feed roller 6 is attached to the paper feed cassette.
5 is installed, and this paper feed roller is operated by the power obtained from the platen side.

Make sure the paper feed timing with the platen is accurate.

Moreover, the paper feed cassette can be made extremely small.

In addition, in this embodiment, not only can the tractor be used in the pulling method and the pushing method, but also the paper feed cassette is installed in the space where the tractor is located in the pushing method, so the entire area is wide. Miniaturized.

Furthermore, in this embodiment, by simply increasing the number of small control solenoids 33, the paper bail can be raised and lowered and the color of the ink ribbon can be changed using the drive source of the carrier. Since a paper strength vine is provided immediately after passing, paper is not wasted.

Furthermore, in this embodiment, the ribbon is switched and the paper veil is lowered by moving the carrier within the printing range, so there is no increase in size in the printing direction.

Further, in this embodiment, the +/- bar is raised and lowered by the movement of the carrier, and when the carrier comes to the center of the platen, the platen is rotated forward at this position to feed the cut paper to the printing start position. Therefore, the print head or a paper guide (not shown) fixed to the print head guides the cut paper so that it does not bulge, allowing reliable paper feeding.

Further, in this embodiment, paper is ejected and fed while the carrier moves back and forth between the home position and the center position of the platen.

and ink ribbon switching.

Extremely efficient.

There is no problem with the A area 1+1-F space operation, and it can be applied to various things such as pull printers other than impact type.

Further, the present invention is not limited to the above embodiments, and can be modified in various ways.

(Effects) As described above, in the present invention, since the paper cutter is provided between the arms that support the bail roller, there is no wasted blank space on the recording paper, and as a more practical effect, the paper cutter is installed between the arms that support the bail roller. The scale on the back makes it easy to align and check the recording position when loading recording paper. Furthermore, since the bail roller is supported by a scale indicating member that is slidable on the paper cutter, the position can be confirmed and the paper can be held more reliably.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a perspective view of the carrier portion, Fig. 3 is a perspective view of the paper feed cassette, and Fig. 4 is a perspective view of the paper feed cassette.
Figures 6 and 7 are cross-sectional views of the printer when the paper feed cassette is installed, Figure 5 is a block circuit diagram, and Figure 8 C, (
b) is a side view of the printer when using fan-hold paper, showing the case of the push type and the case of the pull type, respectively. Figures 9 (a)' and (b) are explanatory diagrams showing the coupling relationship of the gears. , FIG. 1θ is a timing chart in auto loading mode, FIG. 11 is a timing chart in automatic paper feeding mode, and FIG. 12 is a flow chart. 1-111 platen. 3-m-very low feed motor. 8--m-swing plate, 10---lock lever 1, 19---discharge roller, 20--bin wheel, 29---carrier. 30--Print head, 31--Ribbon cassette, 33--Control solenoid, 45--Carrier motor, 47--Cam plate, S0--Paper bail arm, 55---Pinch roller 1 60---One paper feed cassette, 65---One paper feed roller, 67---Paper feed gear, 8 B---Stocker. 0th mouth (b)

Claims (3)

[Claims] (1) A recording apparatus equipped with a bail roller that presses recording paper against a platen, characterized in that a paper cutter is provided between arms that support the bail roller. (2) The recording apparatus according to claim 1, wherein the paper cutter has a scale on its back side. (3) The recording apparatus according to claim 2, wherein the bail roller is held by a scale indicating member that is slidable with respect to the paper cutter.