JPH06344644A - Ink ribbon driving system in printer - Google Patents

Abstract

PURPOSE:To provide an ink ribbon driving system which is so constituted as to carry out an ink ribbon feeding without causing a problem of a conventional system in which an ink ribbon has been wastefully used with ink remaining in a part other than an ink surface-released part impacted by a printing hammer. CONSTITUTION:The system is provided with a means for storing a released part of an ink ribbon per dot in the longitudinal direction thereof and an ink ribbon feeding control means. The control means compares dot information that ink should be used for a next printing with the stored information for every dot. If the dot to be printing next is not coincident with the released dot, the ink ribbon is used without carrying out the and ink ribbon feeding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink ribbon drive system.

[0002]

2. Description of the Related Art FIG. 3 is an explanatory diagram when an ink ribbon is used for printing "1 /" as an example of a character string by an example of a conventional ink ribbon driving system.

Conventionally, the ink ribbon is operated only in one direction, and each time one character is printed, a drive is applied to a bobbin wound with a certain amount of one of the ink ribbons wound thereon with a force superior to that of the brake. A method of printing clear characters on a printing paper has been generally performed by a method of printing while exposing a new ink surface by a method of rotating a bobbin. Therefore, as shown in FIG.
The ink ribbon has been required to have an area corresponding to "the number of characters + the space between characters".

[0004]

In the conventional ink ribbon drive system, as shown in FIG. 3, when the ink ribbon is viewed in dot units in the vertical direction, the ink ribbon is fed even if only one dot is printed. Although the ink remains on the part other than the part where the ink surface is peeled off by being hit by a printing hammer, the unused part of the ink ribbon has been thrown away as it is, which is uneconomical. It was a problem.

Therefore, an object of the present invention is to realize an ink ribbon feeding without waste, and to provide an ink ribbon feeding control mechanism for minimizing the ink remaining portion, so that the above-mentioned problems can be solved economically. It is to provide an ink ribbon driving method for various printers.

[0006]

According to the ink ribbon drive system of the printer of the present invention, a means for storing the peeled portion of the ink ribbon of the character being printed in the longitudinal direction of the ink ribbon in dot units, The control means for controlling the ink ribbon feeding by determining whether or not the ink ribbon feeding should be performed based on the information about the planned use of the ink ribbon, and the control means is information on the dots to use the ink for the next printing. And the information stored by the storage means are compared on a dot-by-dot basis, and if the dots that are to be used for ink for printing next do not match the already separated dots,
It is characterized in that it is configured to use the ink ribbon without feeding the ink ribbon.

[0007]

[Function] The determination logic is that all the dot information to be printed next time is blank, and it is compared with the stored information in dot units, and if the dot to be printed next time does not match the peeled dot, the ink ribbon is not sent. It is structured. As a result, although it depends on the shape and size of the character, considering the case of the average shape and size, the mechanical feeding method of character by character or line by line like the conventional ink ribbon feeding mechanism is omitted. Therefore, the unused portion of the ink ribbon can be significantly reduced.

[0008]

EXAMPLES Next, examples of the present invention will be described.

FIG. 1 is a block diagram of a printer provided with an embodiment of an ink ribbon drive system of the printer of the present invention, and FIG. 2 shows "1" as an example of a character string by the drive system of FIG.
It is explanatory drawing in case an ink ribbon is used for printing of "/".

This system includes a dot history memory for storing the peeled portion of the ink ribbon in dots in the longitudinal direction of the character being printed, a next print memory, and a judgment logic for controlling the ink ribbon feed. Have.

In the next print storage memory, information of dots to be printed next time is divided into dots in the vertical direction and is hit by the print hammer, and when the judgment logic is passed, the information is recorded in the dot history. It is assumed to be updated in the memory. It is assumed that the dot history memory takes over the information of the print storage memory next time, stores the information of the printed dots, and is cleared when the judgment logic is passed.

The determination logic is that "if the dot information to be printed next time is all blank, the ink ribbon is not sent."
In addition, it is defined as "Compared with the stored information in dot units, and if the dot to be printed next time does not match the separated dot, the ink ribbon is not sent." FIG. 2 shows the usage state of the ink ribbon according to the driving operation of the present embodiment when the character string “1 /” is stored as an example of the character string in accordance with this, but the ink ribbon is used. The portion is only a, and in the case of the prior art, it is remarkably reduced compared to the case where the portion of b and c is added to this and the portion of d in FIG. 3 is used.

The rate of decrease depends on the shapes and combinations of two consecutive characters or three characters. For example, the reduction rate is large when ".", ",", ".", Etc. are printed.

In this way, the conventional mechanical feeding of the ink ribbon for each character or each line can be omitted, and the unused portion of the ink ribbon can be greatly reduced.

[0015]

As described above, according to the present invention, the means for storing the peeled portion of the ink ribbon for the characters to be printed in the longitudinal direction of the ink ribbon in dot units, and the information about the next use schedule of the ink ribbon. Based on the above, it is provided with a control means for judging whether or not the ink ribbon should be fed, and controlling the ink ribbon feeding. By this control means, both information are compared dot by dot to determine whether or not the ink ribbon is fed. By adopting the specified configuration, it is possible to omit the conventional mechanical feeding of the ink ribbon for each character or for each line, and to significantly reduce the unused portion of the ink ribbon, It is possible to provide an economical ink ribbon drive system that can be used without waste.

[Brief description of drawings]

FIG. 1 is a block diagram of a printer including an embodiment of an ink ribbon drive system of the printer of the present invention.

FIG. 2 shows an example of a character string “1” by the driving method of FIG.
It is explanatory drawing in case an ink ribbon is used for printing of "/".

FIG. 3 is an example of a conventional ink ribbon drive system,
It is explanatory drawing in case an ink ribbon is used for printing "1 /" as an example of a character string.

[Explanation of symbols]

 〇 Part where ink hit by a printing hammer peels off a, d part where ink ribbon is used b, c part where ink ribbon is not used

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[Procedure amendment]

[Submission date] November 9, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

According to the ink ribbon drive system of the printer of the present invention, a means for storing the peeled portion of the ink ribbon of the character being printed in the longitudinal direction of the ink ribbon in dot units, The control means for controlling the ink ribbon feeding by determining whether or not the ink ribbon feeding should be performed based on the information about the planned use of the ink ribbon, and the control means is information on the dots to use the ink for the next printing. And the information stored by the storage means are compared on a dot-by-dot basis, and if the dots that are to be used for ink for printing next do not match the already separated dots,
It is characterized in that it is configured to use the ink ribbon without feeding the ink ribbon. The present invention
The ink ribbon drive system of
Stores the specified information, and the next printing memory connected to the control means
It is desirable that the memory be further provided.

Claims (1)

[Claims] 1. An ink ribbon driving system for a printer, which stores a peeled portion of the ink ribbon of a character being printed in a dot unit in a longitudinal direction of the ink ribbon.
The ink jet printer further comprises control means for controlling the ink ribbon feeding by determining whether or not the ink ribbon feeding should be performed based on the information on the next use of the ink ribbon, and the control means uses the ink for the next printing. The information on the power dot and the information stored by the storage means are compared dot by dot, and if the dot for which ink is to be used for printing next does not match the already peeled dot, the ink ribbon feed An ink ribbon drive system characterized in that it is configured to use an ink ribbon without performing.