JPH0569611A - Continuous forms charging device of printer - Google Patents

Abstract

PURPOSE:To provide a continuous forms charging device of a printer which can easily accurately set continuous forms concerning the continuous forms charging device of the printer for charging the continuous forms to the printer. CONSTITUTION:The title continuous forms charging device of a printer is composed as follows : a paper feed mechanism 1 which has a paper feed pin 12 to be rotated so as to feed continuous forms 100 longitudinally and is provided freely movably in a width direction of the continuous forms 100, and a feed hole detecting sensor 3 which is provided so as to move in the width direction integrally with the paper feed mechanism 1 in order to be tect a paper feed hole 102 are provided. A pin width matching means 4 which drives the paper feed mechanism 1 and the feed hole detecting sensor 3 and stops their drive in response to a feed hole detecting signal from the feed hole detection sensor 3, and a preparatory feed means 6 which feeds the continuous forms 100 longitudinally to a position wherein the paper feed hole 102 interlocks with the paper feed pin 12 while the paper feed pin 12 is being rotated, are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer continuous paper loading device for loading continuous paper into a printer.

When setting continuous form (continuous form) paper in a printer, it is necessary to engage a paper feed hole formed along a side edge of the continuous form paper with a pin such as a pin belt tractor. .

[0003]

2. Description of the Related Art Similar to single-cut sheets, continuous ledger sheets are available in various sizes with different widths. Therefore, in order to engage the paper feed hole with the pin, it is necessary to move the pin belt tractor or the like in the width direction according to the paper width and set it at an appropriate position.

Therefore, conventionally, the pin belt tractor is manually moved in the width direction and the pin lever tractor can be locked at an arbitrary position by operating a lock lever.

[0005]

However, it may be extremely troublesome to manually adjust the position of the pin belt tractor in the width direction each time continuous paper sheets having different widths are set.
In addition, if the set width of the pin belt tractor is not appropriate, there is a drawback that the paper feed hole is disengaged from the pin during paper feed, and so-called paper tear or paper tear occurs.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a continuous paper loading device for a printer that can easily and accurately set continuous paper.

[0007]

In order to achieve the above object, a continuous paper loading device for a printer according to the present invention, as shown in FIG. 1, is a paper feed which is formed in a continuous paper 100 in a vertical direction. A paper feed mechanism 1 provided with a paper feed pin 12 which is engaged with the hole 102 and is rotated so as to feed the continuous form paper 100 in the longitudinal direction, and which is provided movably in the width direction of the continuous form paper 100. , A feed hole detection sensor 3 provided so as to move in the width direction integrally with the paper feed mechanism 1 in order to detect the paper feed hole 102 of the continuous paper 100, the paper feed mechanism 1 and the feed hole detection sensor 3 is driven in the width direction to rotate the paper feed pin 12 and the pin width adjusting means 4 which stops the drive in the width direction in response to the feed hole detection signal from the feed hole detection sensor 3. ,Up Paper feed hole 102 is characterized by providing a pre-feeding means 6 for paper feeding of the continuous form paper 100 to a position to be engaged with the paper feed pin 12 vertically.

The preliminary feeding means 6 transfers the continuous paper 100 to the paper feeding pin 12 by the same driving source 16 as the paper feeding pin 12 via a one-way clutch 25 which transmits rotation only in the paper feeding direction. The paper may be fed at the same speed.

[0009]

The pin width adjusting means 4 drives the paper feed mechanism 1 and the feed hole detection sensor 3 in the width direction, and stops the width direction drive in response to the feed hole detection signal from the feed hole detection sensor 3. Thus, the position of the paper feed pin 12 in the width direction can be automatically matched with the paper feed hole 102.

The preliminary feeding means 6 is provided with a sheet feeding hole 10
The continuous paper 100 is vertically fed to the position where 2 is engaged with the paper feed pin 12, and the paper feed hole 102 at the leading end of the continuous paper 100 is engaged with the paper feed pin 12.

[0011]

Embodiments will be described with reference to the drawings.

FIG. 2 shows a paper feeding section of the printer, and 1 and 2 are a pair of pin belt tractors for feeding the continuous form paper 100 toward a left printing section (not shown). The continuous form paper 100 is provided with paper feed holes 102 in a vertical direction along both side edges thereof at a constant pitch.

As shown in FIG. 3, the pin belt 11 provided on each of the pin belt tractors 1 and 2 has a paper feed pin 12 for engaging with the paper feed hole 102 of the continuous paper 100, as shown in FIG. It is projected at the same pitch as.

13 and 14 are pin belt tractors 1,
The drive shaft 14 is a fixed shaft and a drive shaft that support the drive shaft 2. The drive shaft 14 is rotationally driven by the paper feed motor 16 to rotate the pin belt 11. In this embodiment, if the paper feed motor 16 is rotated in the normal direction, the continuous paper 1
The paper feed pin 12 is rotated in the direction to feed 00 to the left printing unit.

Further, a position detecting board 18 having a large number of radial slits formed in correspondence with the position of the paper feed pin 12 is fixed to the drive shaft 14, and the transmission type optical sensor 19 detects the slits. The position of the paper feed pin 12 can be detected from the position.

The pair of pin belt tractors 1 and 2 are provided so as to be able to move independently along the two shafts 13 and 14 in the left-right direction, that is, in the width direction of the continuous paper 100. The left side (lower side in FIG. 2) of the pin belt tractor 2 is manually moved.
The pin belt tractor 1 on the right side (upper side in FIG. 2) can be moved by the width adjusting motor 15 via the belt 17.

Reference numeral 20 designates a paper tray for guiding the continuous paper 100, and in the middle thereof, as shown in FIG.
The paper feed roller 21 so that the continuous form paper 100 is pinched.
The pressing roller 22 and the pressing roller 22 are rotatably supported in a pressed state by the tension coil spring 23.

The paper feed roller 21 of the two rollers 21, 22 is rotationally driven by the same paper feed motor 16 as the pin belt tractors 1, 2 via the belt 24. However, the belt 24 is hooked on a one-way clutch 25 that transmits only forward rotation. Therefore, when the paper feed motor 16 rotates in the normal direction, the paper feed roller 21 rotates together with the pin belt 11 so as to feed the continuous paper 100 toward the pin belt tractors 1 and 2, and when the paper feed motor 16 rotates in the reverse direction, the one-way clutch. 25
The paper feed roller 21 does not rotate, and only the pin belt 11 rotates in the reverse direction.

The pressing roller 22 has a tension coil spring 23.
It is provided so as to be able to be separated from the paper feed roller 21 against the biasing force of the sheet feeding roller 21. For example, if the slider 26 as shown in FIG. Is pushed up to separate from the surface of the continuous paper 100. Then, when the slider 26 is returned in the direction opposite to the arrow B, the pressure contact roller 22 returns to the original state again. The slider 26 may be moved manually, but the power of a motor or the like may be used.

As shown in FIGS. 2 and 3, the paper tray 2
0, the paper feed roller 21 and the pin belt tractor 1,
2, a slender slit 28 is formed in the width direction, and the reflection type optical sensor 3 is arranged below the slit 28 in an upward direction.

The reflection type optical sensor 3 is attached to an arm 29 extending from the right pin belt tractor 1 so that it is always aligned vertically with the paper feed pin 102 of the right pin belt tractor 1. Along the slit 28, the continuous paper 1 with the pin belt tractor 1 on the right side.
00 in the width direction.

Reference numeral 30 denotes a control unit having a central processing unit (CPU) for controlling the paper feeding operation, which receives detection signals from the reflection type optical sensor 3 and the transmission type optical sensor 19, and the paper feeding motor 16 And width adjusting motor 18
It outputs a control signal to.

Next, the operation of this embodiment will be described with reference to FIGS. 4 and 5 which are flow charts of the control processing in the control unit 30. S indicates a step.

In the initial state, the right pin belt tractor 1 is set at a position 1a shown by a broken line in FIG. 2 adjacent to the left pin belt tractor 2.

When a paper loading instruction signal is input to the control unit 30 from a host device (not shown) or the like, first, the paper feed motor 16 rotates normally, and the continuous paper 100 starts to be sucked by the rotation of the paper feed roller 21 ( S1).

When the reflective optical sensor 3 detects the leading edge 101 of the continuous paper 100 (S2), a small amount of paper is further fed to the position where the leading paper feed hole 102 and the reflective optical sensor 3 are aligned in the lateral direction. Then, the reflective optical sensor 3 and the paper feed hole 102 are aligned in the vertical direction, and the paper feed motor 16 is stopped there (S3). However, in this operation, the reflective optical sensor 3 and the paper feed hole 102 may be aligned in the vertical direction based on, for example, the rotation amount of the paper feed roller 21 without using the reflective optical sensor 3. .

Then, the width adjusting motor 15 is driven to move the pin belt tractor 1 in the width direction of the continuous paper 100 (S4). Then, when the reflective optical sensor 3 detects the paper feed hole 102 (S5), the width adjustment motor 15 is stopped (S6), and the reflective optical sensor 3 and the paper feed hole 102 are aligned in the width direction.

Next, when the paper feed motor 16 is rotated in the reverse direction, only the pin belt 11 is rotated in the reverse direction (S7). And
When the position of the paper feed pin 12 is at a position suitable for engaging with the paper feed hole 102 by the detection signal from the transmission type optical sensor 19 which detects the position of the paper feed pin 12 from the position detection board 18 (S8), there The paper feed motor 16 is normally rotated (S9). As a result, the paper feed roller 21 and the pin belt 11 both rotate in the forward direction, and the paper feed pin 12 and the continuous paper 100 move at the same speed, while the continuous paper 100 moves from the paper feed roller 21 side to the pin belt tractor 1. When the number reaches 2, the paper feed hole 102 and the paper feed pin 12 are engaged with each other.

After that, when the pressure contact roller 22 is retracted upward by the slider 26, the continuous form paper 100 is fed only by the rotation of the pin belt tractors 1 and 2.

[0030]

According to the continuous paper loading device of the printer of the present invention, the paper feed hole of the continuous paper and the paper feed pin of the paper feeding mechanism can be automatically and accurately engaged, and the paper of the continuous paper is fed. It has an excellent effect that it is possible to significantly reduce the occurrence of cracks and paper tears.

[Brief description of drawings]

FIG. 1 is a configuration diagram of the present invention.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is a partial side view of the embodiment.

FIG. 4 is a flowchart of an embodiment.

FIG. 5 is a flowchart of an example.

[Explanation of symbols]

 1 pin belt tractor (paper feed mechanism) 3 reflection type optical sensor (feed hole detection sensor) 4 pin width alignment means 6 preliminary feed means 12 paper feed pins 100 continuous form paper 102 paper feed holes

Claims (2)

[Claims] 1. A continuous paper (10) which engages with a paper feed hole (102) formed in the longitudinal direction of the continuous paper (100).
0) has a paper feed pin (12) which is rotated so as to feed the paper in the longitudinal direction, and also has the continuous form paper (100).
Paper feed mechanism (1) movably in the width direction of the paper
A feed hole detection sensor (3) provided so as to move in the width direction integrally with the paper feed mechanism (1) for detecting the paper feed hole (102) of the continuous paper (100); Paper feed mechanism (1) and feed hole detection sensor (3)
And pin width adjusting means (4) for driving and in the width direction to stop the width direction drive in response to the feed hole detection signal from the feed hole detection sensor (3), and the paper feed pin (12). And a preliminary feeding means (6) for feeding the continuous form paper (100) in the longitudinal direction to a position where the paper feed hole (102) is engaged with the paper feed pin (12) while rotating the. Characteristic printer continuous paper loading device. 2. The preliminary feed means (6) has the same drive source (16) as the paper feed pin (12) via a one-way clutch (25) which transmits rotation only in the paper feed direction.
2. The continuous paper loading device for a printer according to claim 1, wherein said continuous paper (100) is fed at the same speed as said paper feed pin (12) by.