JPS62152766A - Printing method - Google Patents

Abstract

PURPOSE:To enable a label to be printed over the entire length thereof, by feeding a printed label to a releasing position and then running the next label to be printed by a predetermined distance in a direction opposite to the direction of the releasing position. CONSTITUTION:When a printed label 2 is fed to the position of a releasing roller 8, a printing position 61 of a printer 6 makes contact with an intermediate part of an unprinted label 2 to be printed next. Therefore, a base paper 4 is fed backward by a distance l so that the printing position 6a makes contact with the leading end of the unprinted label 2. A stepping motor 18 is reversely rotated by an amount corresponding to a distance n(l/k), where k is the distance the base paper 4 is moved when the motor 18 is rotated by one step. A controlling circuit 22 so functions that when it is detected by a release detector 20 that the printed label 2 is released, the number of rotations of the motor 18 is counted, and the motor 18 is reversely rotated by one step.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a printing method for printing predetermined items on labels that are sequentially conveyed.

<Prior art> Conventionally, as the above label printing technology, for example,
There is one as shown in No. 4-120017.

As shown in FIG. 5, a long sheet of paper with a large number of labels 2 removably attached to a mount 4 at predetermined intervals is run, and the unprinted labels 2 are run to the position of the printing device 6. ,
After the printing is completed, the label 2 is moved to the position of a peeling roller 8, almost all of the printed label 2 is peeled off from the mount 4, and the process of manually peeling the printed label 2 completely from the mount 4 is repeated.

<Problems to be Solved by the Invention> However, with this technique, when the printed label 2 is almost peeled off from the mount 4, the unprinted label 2 that is about to be printed next Position is printing device 6
is in contact with the printed portion 6a, and the portion 2a shown in FIG.
There is a problem in that it is possible to print only on the area 2b and not on the area 2b. Conventionally, the problem of not being able to print on section 2b has been solved by using a label 2 on which the store name, etc. is already printed, but if you want to change the store name, etc., you have to go out of your way to reprint it. Ta.

In addition, when a thermal head is used in the printing device 6, if the heating element of the thermal head is in contact with the printing part for a long time, the heating element and the printing section will fuse together, causing the label 2 for printing to become difficult to run. However, there was a problem that it would not run.

This problem arises because in order to reliably peel the label 2 from the mount 4, it is necessary to make the folding angle α a fairly acute angle. This is because the distance from the printed part 6a (which must always be located below the printed part 6a) must be relatively long.

Means for Solving the Problems In order to solve the above problems, the present invention conveys a printed label to a peeling position, and then moves the label to be printed next by a predetermined distance in the direction of the peeling position. runs in the opposite direction.

<Operation and Effect> According to the present invention, since it is moved in the opposite direction to the peeling position, it is possible to print from one end of the label to the other, and characters, etc. can be printed from one end of the label to the middle of the label. Even if the printing device is a thermal head,
There is no possibility that the printed part and the thermal head will be fused together.

Embodiment Example In this embodiment, the label 2, mount 4,
It has a printing device 6, a peeling roller 8, and a platen roller 10. As shown in FIG. 2, the platen roller 10 is connected to a stepping motor 18 via gears 12, 14, 16. 20 is a light emitting element and a light receiving element of the peeling detector.

As shown in FIG. 3, the output signal of the peel detector 20 is supplied to a control circuit 22. As shown in FIG. In addition to this, the control circuit 22 is also supplied with an output signal from a pitch detector 24 that detects whether or not the label 2 is present at a predetermined printing position. The control circuit 22 is composed of, for example, a microcomputer, and controls the printing device 6 and the stepping motor 18 based on the output signals of the peeling detector 20 and the pitch detector 24, data to be printed, and the like.

Now, as shown in Figure 1(a), label 2 has been printed.
It is assumed that the paper is being conveyed to the position of the peeling roller 8. In this state, the printing position 6a of the printing device 6 is in contact with the middle of the unprinted label 2 to be printed next. Therefore,
As shown in FIG. 4('b), in order to bring the printing position 6a into contact with the leading edge of the unprinted label 2, it is sufficient to return the mount 4 by a distance l. The distance that the mount 4 moves when the stepping motor 18 moves one step is known. Therefore, n (
It is sufficient to reverse the stepping motor 18 by 1/k).

Therefore, when the peeling detector 20 detects that the printed label 2 has been peeled off, the control circuit 22 changes the value 1 of the counter that counts the rotation i of the stepping motor 18 to "1J" as shown in FIG. Step A), move the stepping motor 18 one step in the opposite direction (Step B)
), the value 1 of the counter is larger than n by 1. Step C), N.

If so, increment the counter value i by one (step D)
, return to step B. Thereafter, steps B and C1D are repeated in the same manner until the determination in step C becomes No. When the determination in step C becomes YES, the rotation of the stepping motor 18 is stopped.

In the above embodiment, the printing position 6 is located at one end of the label 2.
Although the label 2 is reversed so that the label a is in contact with the print position 6a, the label 2 may be reversed to a position where the label 2 does not contact the printing position 6a at all.

[Brief explanation of drawings]

1(a) and (to) are diagrams showing the operating state of one embodiment of the printing method according to the present invention, FIG. 2 is a partially omitted configuration diagram of the apparatus used in the same embodiment, and FIG. 3 is the same embodiment. 4 is a flowchart of the device used in the same embodiment, FIG. 5 is a partially omitted configuration diagram of the device used in the conventional printing method, and FIG. 6 is a plan view of the label to be printed. . 2...Label, 6...Printing device, 18...Stepping motor. Patent applicant Yamato Seiko Co., Ltd. Representative Tetsu Shimizu and 2 other people 3 figures 74 IS figures 26 figures

Claims (1)

[Claims] (1) In a printing method in which the printing device comes into contact with the middle of the label to be printed next when the label that has finished printing by the printing device is moved to the peeling position, the label to be printed next is moved to the peeling position. is a printing method characterized by conveying a predetermined distance in the opposite direction.