JP2967429B2 - Label printing electrostatic recorder - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electrostatic recording apparatus for label printing that can increase the printing processing speed and reduce the size of the apparatus.

(Prior art and its problems) Printing of various types of information on each label on continuous recording paper in which labels that have been die-cut into appropriate shapes from label base paper and are temporarily attached at predetermined intervals on a backing paper are successively attached. In the past, in many cases, a thermal printer was used, but recently, an electrostatic recording apparatus has been used.

The label is only a separation cut line and a gap (waste = unnecessary part)
For those of the type temporarily attached on the backing paper,
Labels that are die-cut from the label base paper and temporarily attached at predetermined intervals on the backing paper with unnecessary (scrap) portions removed, have rounded corners of the label, or have a circular or triangular shape. , Hexagons, flower shapes, etc., because the design can be arbitrary, the ease of label peeling, and the difference in light transmittance between the laminated part of the label and the mount and the part of the mount alone, special It is widely used because it can be used as a part to detect the label pitch (interval of the attachment of each label to the mount) without a mark.

Further, the continuous recording paper A is called a fanfold paper as shown in FIG. 2 and has perforated holes P on both sides of the backing paper S to facilitate separation of each unit.
There are two types: a type that can be folded and a so-called roll type. In this example, after printing different types of data continuously, a printed matter (label) of necessary data is easily removed from the middle. It is intended for a fan-folded paper type having advantages such as removal and no need for a winding mechanism.

In an electrostatic recording apparatus using a conventional fan-fold paper type continuous recording paper, in order to prevent the continuous recording paper from meandering between the photosensitive drum and the fixing roll, the recording paper transporting means is engaged with and disengaged from the feed hole P. Since a so-called pin tractor mechanism in which an endless belt provided with pins to be fixed is suspended over two pulleys and a flat transfer path having a predetermined length exists, information transferred to a continuous recording paper on a photosensitive drum is transferred to a fixing roll. Must be passed through a pin tractor mechanism with a flat transport path of a predetermined length before stable fixed information is obtained after passing through, and it takes a long time, and the processing speed is slow including the confirmation of output data. was there.

In addition, in order to obtain the final print output, the portion of the unprinted continuous recording paper staying between the photosensitive drum and the fixing roller is:
This has occurred as an unusable part that cannot be printed, and this waste has become something that cannot be ignored.

Further, the apparatus is inevitably increased in size in the direction of transport of the continuous recording paper, and it is difficult to prevent meandering.

(Effect of the Invention) The photosensitive drum and the fixing roll can be brought close to each other while securing the meandering of the continuous recording paper between the photosensitive drum and the fixing roll, and the information transferred to the continuous recording paper on the photosensitive drum is transferred to the fixing roll. Label printing that can be quickly obtained as stable fixed information after passing through, reduces waste of continuous recording paper between the photosensitive drum and the fixing roll, and can reduce the size of the continuous recording paper transfer method of the device It is an object to provide an electrostatic recording device for use.

(Summary of the Invention) In the electrostatic recording apparatus for label printing of the present invention, in order to initially load the leading end of the continuous recording paper to the position of the fixing roll, and to prevent meandering of the continuous recording paper from the photosensitive drum to the fixing roll. And a sprocket wheel provided with a plurality of pins provided at regular intervals on a circumferential surface for setting the transfer speed to coincide with the rotational peripheral speed of the photosensitive drum and disengaging the feed hole P to transfer the continuous recording paper. Is disposed between the photosensitive drum and the pair of fixing rolls.

Further, the sprocket wheel is displaced in the width direction of the recording paper in conjunction with the movement set in accordance with the width of the continuous recording paper, and is provided at the tip of the arm portion for regulating the width direction of the recording paper. Is extended toward the photosensitive drum side.

As a result, since the recording paper transport means is a sprocket wheel without a flat transport section, the photosensitive drum and the fixing roll can be brought close to each other, so that the processing speed can be increased, continuous recording paper waste can be reduced, and the apparatus can be continuously operated. In addition to miniaturization of the recording paper in the transport direction and width guide members, it is possible to secure the meandering of the continuous recording paper.

(Embodiment of the Invention) FIG. 1 shows an electrostatic recording apparatus for label printing using fanfold paper type continuous recording paper.
Is a photosensitive drum, 2 is output light corresponding to image data provided by an electrostatic latent image forming means such as a semiconductor laser or an LED array, 3 is a cleaning brush, 4 is a photosensitive charger, 5 is a developing device, and 6 is This is a transfer charger.

Reference numeral 8 denotes a fixing roll, which is constituted by a pair of a heat roll 8A and an auxiliary roll 8B.

Further, A temporarily attaches a label L die-cut from a label base paper as shown in FIG. 2 to a mount S at predetermined intervals (label pitch), and forms feed holes P on both sides of the mount S. Continuous recording paper.

Reference numeral 10 denotes a sprocket wheel which is disposed between the photosensitive drum 1 and the fixing roll 8 and has pins 10a which are engaged with and disengaged from the feed holes P provided on the circumferential surface at equal intervals. The sprocket wheel 10 has a pair of structures located on both sides of the continuous recording paper A. As is well known, the sprocket wheel 10 can approach and separate from each other by center distribution according to different widths of the type of the recording paper A, and can move the Thus, the position can be set according to the width.

Numeral 11 is sandwiched between the boss portion of the sprocket wheel 10 and the brim portion 10b, and is movable integrally with the sprocket wheel 10 in the width direction of the recording paper A by the guide by the pin 14. An arm 12 extending toward the photosensitive drum 1 is a paper guide member having a width that cannot be rotated due to an external member.
The paper guide portion 12a is formed on the sheet. That is, the paper guide section 12a
Extends the paper guide stroke as compared to only the pin 10a of the sprocket wheel 10.

Reference numeral 15 denotes a well-known paper holding plate, which is movable in the width direction of the recording paper A together with the sprocket wheel 10, but does not rotate.
For example, the recording paper A is supported by a paper guide member 11 in a hinge format.
Can be opened and closed between a position where the recording paper A is released and a position where the recording paper A is pressed.

With the above configuration, the control device of the entire apparatus (not shown) controls and drives the electrostatic latent image forming means for outputting the output light 2 and the operation mechanisms such as the photosensitive drum 1 to continuously record desired image information. This is to print and output on a label L on paper A.

The continuous recording paper A is conveyed from the left side of the photosensitive drum 1 in FIG. 1, the toner image is transferred from the photosensitive drum 1 onto the label L by the transfer charger 6, and the paper guide portion 12a of the paper guide member 12 and the sprocket After being fixed by the fixing roll 8 through the wheel 10, it is discharged to the right of the fixing roll 8.

The paper guide portion 12a of the paper guide member 12 that is displaced in conjunction with the movement of the sprocket wheel 10 that is set in accordance with the width of the continuous recording paper is replaced with the downstream side of the photosensitive drum 1 of the embodiment. You may make it face upstream.

(Effect of the Invention) As described above, the electrostatic recording apparatus for label printing of the present invention is
By interlocking with the sprocket wheel and the width guide member, which has a paper guide portion for regulating the width of the recording paper at the tip of the arm, it is possible to prevent the continuous recording paper from meandering. Since the drum and the fixing roll can be brought close to each other, the amount of the printed label staying between the photosensitive drum and the fixing roll is shortened, thereby improving the processing speed, reducing the waste of the continuous recording paper, and reducing the continuous recording paper of the apparatus. This is extremely effective because the size of the transfer direction can be reduced.

[Brief description of the drawings]

FIG. 1 is a structural explanatory view showing an embodiment of the present invention, and FIG. 2 is an explanatory perspective view showing an example of continuous recording paper. DESCRIPTION OF SYMBOLS 1 ... Photosensitive drum, 6 ... Fixing charger 8 ... Fixing roll, 10 ... Sprocket wheel 11 ... Paper guide member, 12a ... Paper guide part A ... Continuous recording paper, S ... Mount L ... … Label, P …… feed hole

Claims (1)

(57) [Claims] 1. An electrostatic recording method using a continuous recording paper in which a label which has been die-cut from a label base paper into an appropriate shape is temporarily attached to a backing paper continuously and holes to be fed are formed on both sides of the backing paper. In the apparatus, recording paper transport means for transporting the continuous recording paper disposed between a photosensitive drum and a fixing unit is provided with a plurality of pins, which are sequentially engaged and disengaged from the feed holes, at equal intervals on a circumferential surface. A sprocket wheel, which is displaced in the width direction of the recording paper in conjunction with a movement set in accordance with the width of the continuous recording paper of the sprocket wheel, and has a width of the recording paper at a tip end of an arm portion. An electrostatic recording apparatus for label printing, wherein a width guide member having a paper guide portion for regulation is extended toward a photosensitive drum.