JPH021737B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electrostatic recording label printer that prints on labels using an electrostatic recording method.

2. Description of the Related Art Generally, label printers use label paper in which a label is attached to a long mount. Various methods have been adopted for printing on the labels, but as the recorded contents become more diverse, electrostatic printing methods are increasingly being adopted.

Problems to be Solved by the Invention When such an electrostatic printing method is adopted, if the series of processes from forming an electrostatic latent image through a fixing process to label ejection are performed continuously, it is difficult to print labels one after another. When printing, one label is ejected before the next label is printed, so the label printing interval becomes long, and the label printing interval is long compared to the processing time of the product whose weight is being measured. , there is a problem that it takes a long time to price the products.

Means for Solving the Problem A recording belt is provided that moves along an electrostatic latent image forming section, a developing section, and a transfer section, and consists of a label facing the recording belt and a mount to which the label is attached. A label paper is provided, a label peeling unit is provided close to the transfer unit and peels the label from the mount, and the label that is placed close to the label peeling unit and peeled by the label peeling unit is conveyed to a label output port. A label conveyance section was provided, and the label conveyance speed of this label conveyance section was set to be the same as or higher than the conveyance speed of the label paper. Further, a fixing section for fixing toner on the label was provided close to the label conveying section.

Function The label peeled off by the label peeling section provided close to the transfer section is conveyed toward the label output port by the label conveyance section, so it can be made independent of the operation of the recording belt. After the label is peeled off in the label peeling section, the label conveyance and the printing operation on a new label can be performed in parallel. It is possible to shorten the time and match the timing with the processing time of the product to be weighed. Also, since the transport speed of the label transport unit is the same or faster than the transport speed of the label paper, it is possible to It is possible to reliably separate the labels, and also to fix the toner that has adhered to the labels during transportation.

Embodiment An embodiment of the present invention will be described based on the drawings. First, a holding section 5 is provided at the upper part of the main body case 1, which holds a roll of label paper 4 on which labels 3 are pasted at predetermined intervals on a long mount 2. The label paper 4 pulled out from the section 5 passes through the label detecting section 6, the rollers 7, and the rollers 8, and reaches the label peeling plate 9, which serves as a label peeling section that also serves as a pedestal.
After the mount 2 has been peeled off, the label feed roller 10
The film is then wound up by the winding section 11. A label conveying section 12 and a label outlet 13 are provided in the same horizontal plane as the label peeling plate 9.

Next, an electrostatic recording section 14 is provided above the label peeling plate 9 and the label conveying section 12. First, a flexible recording belt 15 formed in the shape of an endless belt is provided.
drive roller 16, rollers 17, 18, 19, 2
a tension roller 16a that is suspended between the drive roller 16 and the roller 17;
A predetermined tension is applied to the rollers 19 and 20, and the rollers 19 and 20 are set parallel to the planar receiving surface 21 of the label peeling plate 9 with a predetermined distance therebetween. However, the recording belt 1
5 is constructed as shown in FIGS. 3 and 4. That is, synthetic leather 22 serving as a base layer of a predetermined width is glued together at a seam 23 to form an endless belt shape,
A conductive rubber layer 24 serving as a conductive layer is adhered to the entire surface of the synthetic leather 22, and is formed into an endless band by seams 25. Such a conductive rubber layer 24
Mylar 27, which serves as a charged layer, is releasably adhered to the surface of , leaving ground planes 26 on both side edges.
A grounding roller 28 facing the driving roller 16 is joined to the grounding surface 26 . Also,
The conductive rubber layer 24 is separated into two along the longitudinal direction, and a separate drive element 29 is connected to each conductive rubber layer 24.

Next, around the recording belt 15, a charging charger 30, a multi-stylus head 31 serving as an electrostatic latent image forming section, a developing section 32, a static elimination charger 33, and a cleaning section 34 are arranged.
The developing section 32 includes a toner tank 35 and a developing roller 36, and the cleaning section 34 includes a cleaning claw 37 and a toner receiver 38. As shown in FIG. 5, the recording electrodes 39 of the multi-stylus head 31 are connected to a driving element 40 only to one corresponding to one of the conductive rubber layers 24, and the driving element 40 is connected to the other recording electrode 39. The drive elements 40 are connected in parallel to reduce the number of driving elements 40.

Further, a transfer section 41 is provided between the rollers 19 and 20.
is provided. This transfer section 41 includes a solenoid 42 and a pressing plate 4 connected to this solenoid 42.
3 and more. A rubber layer 44 is provided on the lower surface of the pressing plate 43, and as shown in FIGS. 6 and 7, the rubber layer 44 has different thicknesses and has an inclined surface 45 on its lower surface.

Next, the label conveying section 12 includes a plurality of drive rollers 46 arranged on the same axis and rollers 47, 48 aligned with these drive rollers 46,
49, and these rollers 46, 47, 4
It consists of a plurality of thread-like feeding belts 50 wound around threads 8 and 49. The surfaces of these feed belts 50 are coated with fluororesin so that they are not adhesive to adhesives.

A fixing section 51 is provided above the label conveying section 12. This fixing section 51 has a fixing flash 52 made of a xenon lamp, a halogen lamp, or the like.

Next, the connection state of the electric circuit will be explained based on FIG. 11. First, although not shown mechanically, a weighing section 53 for measuring the weight of products, etc., and a keyboard section 53a for setting various conditions are connected to the CPU 54, and this CPU 54 has RAM 55, ROM 56,
A character generator 57 is connected.
Further, the CPU 54 is connected to a label feeding section 58 that drives the label feeding roller 10, the electrostatic recording section 14, and a display section 59.

In such a configuration, the operation of each part will be explained according to the timing chart shown in FIG.
First, to describe the overall usage situation, if there are products for which the price per unit weight, that is, the unit price, is set, and the weight of each product is different, the price and other information for each product will be printed. This is used when issuing a labeled label 3 for each product. Therefore, the product is placed on the weighing section 53, the data from the weighing section 53 is transmitted to the CPU 54 to perform necessary calculations, and then the data is transmitted to the electrostatic recording section 14.

First, in the initial state, there is no previous operation since no weighing has been performed yet, so a weighing completion signal indicating that preparations for weighing have been made is output. This metering completion signal causes the drive roller 16 to start and the recording belt 15 to rotate. Then, it is charged by the charging charge 30. During this timing, a signal from the weighing section 53 is applied to the multi-stylus head 31, and an electrostatic latent image is formed on the Mylar 27 of the recording belt 15 by the recording electrode 39. This electrostatic latent image is used to obtain the printed content as shown in FIG. The right side is for the readable area 60 where the product name, date, unit price, weight, price, etc. are displayed and contents are printed in letters, symbols, numbers, and the left side is the barcode where the barcode is printed. This is for area 61. Such an electrostatic latent image portion is in the developing section 3.
2, toner is supplied to the latent image area by the developing roller 36 and adheres to the latent image area. The state of this adhesion varies depending on the method, but it is carried out in a known manner using electrostatic development or magnetic development.

Then, when the developed portion reaches the transfer section 41, the drive roller 16 stops and the recording belt 15 stops. At this time, the position of the label 3 of the label paper 4 is set in advance so that the developed portion of the recording belt 15 and the label 3 face each other. Then, when the recording belt 15 stops, the solenoid 42 is energized, and the pressing plate 43
is lowered and the label 3 and the recording belt 15 are pinched and pressed between the receiving surface 21 of the label peeling plate 9 and the toner is transferred onto the surface of the label 3. During this transfer, since the lower surface of the rubber layer 44 of the pressing plate 43 forms an inclined surface 45, the rubber layer 44 of the pressing plate 43 contacts the recording belt 15 sequentially from the front toward the rear, so that the recording belt 15 does not shift. Therefore, there is no disturbance of the transferred toner. Then, when a certain pressing time necessary for transfer has elapsed, the solenoid 42 is activated and the pressing plate 43 is raised.

When the operations up to this point are completed, a measurement completion signal is output, the recording belt 15 is driven, and at the same time the label feed roller 10 is driven to feed the label paper 4 one pitch. As the label paper 4 is fed, the backing paper 2 is sharply bent at the front edge of the label peeling plate 9, so that the relatively stiff label 3 is peeled off from the backing paper 2 and reaches the label conveying section 12. The speed of the feed belt 50 of the label conveying section 12 is equal to or slightly higher than the moving speed of the label paper 4, so that the label 3 is reliably separated from the mount 2. Then, while the label 3 on which the toner has been transferred is being fed by the feeding belt 50, the fixing flash 52 is energized and the label 3 is heated.
The toner on the surface is thermally fixed and the label outlet 1
It is discharged from 3. This fixing flash 52 is not always energized, and the label 3
This is done intermittently to coincide with the transfer of The label 3 made in this way is immediately attached to the product.

In addition, since the feeding of the label paper 4 by one pitch corresponds to the pitch at which the label 3 is attached to the mount 2, the next label 3 remains at a fixed position on the receiving surface 21 of the label peeling plate 9. There is.

While label peeling and fixing are being performed in this manner, the electrostatic latent image format and development steps described above are being performed in parallel. Further, when the recording belt 15 is driven, static electricity removal by the static electricity removal charge 33 and cleaning by the cleaning section 34 are performed simultaneously.

However, physical deterioration of the mylar 27 of the recording belt 15 cannot be avoided due to long-term use, but when the characteristics of the mylar 27 deteriorate, the mylar 27
Peel it off and re-glue the new one. As a result, the characteristics of the recording belt 15 are reactivated, and the resolution of the image is improved. Of course, it goes without saying that the Mylar 27 should be bonded so that it is difficult to separate in the thrust direction and can be removed relatively easily in the vertical direction. Furthermore, the Mylar 27 can be replaced without removing the recording belt 15.

The conductive rubber layer 24 of the recording belt 15 is divided into two parts parallel to the direction of movement, each of which is grounded by a grounding roller 28 and separately connected to a driving element 29. Since the electrode 39 is divided into two halves and connected to drive elements 40 in parallel, even if the number of drive elements 40 is half, it is possible to perform the required writing on the recording belt 15. In particular, writing can be done easily and at high speed without using the time division method.
Note that the formation of the conductive rubber layer 24 on the synthetic leather 22 is not limited to adhesion, and printing or coating methods may also be employed.

Next, toner transfer from the recording belt 15 to the label 3 is performed with both of them stopped, and by stopping them in this way, the arrangement pitch of the labels 3 attached to the mount 2 can be made extremely small. It is something that can be done. This state is extremely effective in a label printer, and can eliminate waste of the mount 2.

Effects of the Invention As described above, the present invention provides a recording belt that moves along an electrostatic latent image forming section, a developing section, and a transfer section, and includes a label facing the recording belt and a mount to which the label is attached. A label paper consisting of a sheet of paper is provided, a label peeling section is provided close to the transfer section to peel the label from the mount, and a label peeling section is placed close to the label peeling section and the label peeled by the label peeling section is placed in a label ejection port. A label conveyance unit is provided to convey the label paper, and the label conveyance speed of this label conveyance unit is set to be the same as or higher than the conveyance speed of the label paper, so that the label paper is peeled off at the label peeling unit provided close to the transfer unit. Since the label is transported by the label transport section toward the label output port, it can be made independent of the operation of the recording belt.This means that after the label is peeled off by the label peeling section, the label transport and new label This allows the printing operation to be performed in parallel with the printing operation for the products to be weighed.This allows for shorter label issuance intervals when continuously issuing labels, and reduces the processing time and timing of products to be weighed. In addition, since the transport speed of the label transport unit is the same as or faster than the transport speed of the label paper, it is possible to reliably separate the label from the backing paper. It also has the effect of being able to fix toner attached to the surface.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal side view of the whole, FIG. 2 is a longitudinal side view of the main part, FIG. 3 is a longitudinal front view of the recording belt, and FIG. 4 is a longitudinal side view of the recording belt. 5 is an explanatory diagram illustrating the relationship between the multi-stylus head and the recording belt, FIG. 6 is a longitudinal side view of the transfer section, FIG. 7 is a longitudinal side view at the time of starting pressure contact, and FIG. The figure is a longitudinal side view during pressure contact, Figure 9 is a plan view of the label conveyance section, Figure 10 is a block diagram, Figure 11 is a timing chart, Figure 12 is a plan view of the printed label, and Figure 13 is a FIG. 3 is a plan view of label paper. 2... mount, 3... label, 4... label paper, 9...
Label peeling plate (label peeling part), 12...Label transport part, 13...Label outlet, 15...Recording belt,
31... Multi-stylus head (electrostatic latent image forming section), 32... Developing section, 41... Transfer section, 51... Fixing section.

Claims (1)

[Scope of Claims] 1. A label provided with a recording belt that moves along an electrostatic latent image forming section, a developing section, and a transfer section, and comprising a label facing the recording belt and a mount to which the label is attached. A label in which a sheet is provided, a label peeling section is provided close to the transfer section to peel the label from the mount, and the label is placed close to the label peeling section and the label peeled by the label peeling section is conveyed to a label output port. An electrostatic recording type label printer characterized in that a conveying section is provided, and the label conveying speed of the label conveying section is set to be the same as or higher than the conveying speed of the label paper. 2. A recording belt that moves along an electrostatic latent image forming section, a developing section, and a transfer section is provided, and a label paper consisting of a label facing the recording belt and a mount to which this label is attached is provided, and the transfer A label peeling section for peeling off the label from the mount is provided in proximity to the label peeling section, a label conveying section is provided in proximity to the label peeling section for conveying the label peeled off by the label peeling section to a label outlet; An electrostatic device characterized in that the label conveying speed of the label conveying section is set to be the same as or higher than the conveying speed of the label paper, and a fixing section for fixing toner on the label is provided in proximity to the label conveying section. Recording label printer.