JPH02253965A - Electric transfer recording method - Google Patents

Abstract

PURPOSE:To eliminate need to provide a return circuit electrode and to obtain a high-quality recorded picture by using the winding and/or unwinding part of an ink ribbon as a return circuit electrode. CONSTITUTION:A signal current from a recording electrode 2 housed in a recording head 1 runs through the conductive film of an ink ribbon 6 and flows into a winding part 3a and/or rewinding part 3b as a return circuit electrode. How to connect the winding part (unwinding part) being the return circuit electrode with the conductive film 9 of the ink ribbon is to tighten at least one end of a resistance film 8, conductive film 9 and ink film 10 with a screw 11, or to fix the return circuit electrode 3, the part 3a and/or the part 3b to the conductive film 9, with an adhesive, conductive material such as silver paste 12.

Description

[Detailed description of the invention] 〔Technical field〕 The present invention relates to an electrical transfer recording method, and more particularly.

The present invention relates to a current transfer recording method using a winding section and/or an unwinding section of a current transfer recording material as a return electrode.

[Prior art]

The current transfer recording method is used in many fields as a useful means for recording prints such as noiseless typewriter/computer printing, computer output, or copying/transmission records.

Various types of recording materials for electrical transfer (ink ribbons, etc.) are known, but those in which a conductive layer and an ink layer are laminated on a resistive layer are generally used.

By the way, when such an ink ribbon or the like is subjected to current recording using the conventional method, as shown in FIG. 5, the contact resistance between the resistance layer 8 and the return electrode 3 is unstable, and the return electrode generates heat. Therefore, it is necessary to increase the contact area of the return electrode 3 with the ink ribbon 6. However, this conventional method has the drawback that it is difficult to obtain clear and homogeneous images.

Taking these points into consideration, (i) the recording electrodes are divided into a plurality of blocks so that at least adjacent recording electrodes are not included in the same block, and printing is performed by driving each block in a time-division manner ( Japanese Patent Publication No. 63-64770
(No. Publication), (...) The recording electrodes are divided into a plurality of blocks so that at least adjacent recording electrodes are not included in the same block, and each block is time-divisionally driven. An energization recording method has been proposed in which a corresponding single dot row is printed by repeating time-division driving a plurality of times (Japanese Unexamined Patent Publication No. 63-64771).

Although these proposed current recording methods are expected to improve image quality, they have the disadvantage that a lot of time is consumed to form a fixed number of characters (fixed number of pixels).

〔the purpose〕

The present invention solves the above-mentioned defects and inconveniences, and provides a current transfer recording method that can obtain high-quality images with the same current application time as conventional methods.

〔composition〕

In the current transfer recording method of the present invention, an ink ribbon in which a conductive layer and an ink layer are laminated on a resistive layer is held in an unwinding section and a winding section disposed at both ends, and a recording paper is brought close to or near the ink layer. In the method of contacting and performing electrical transfer recording,
It is characterized in that recording is performed with the winding section and/or unwinding section serving as a return electrode, to which the conductive layer of the ink ribbon is electrically connected.

Incidentally, 5 the inventor of the present invention describes the winding section and/or
Alternatively, it was confirmed that if the unwinding part is used as a return electrode, the resistance from the recording electrode to the return electrode is stabilized and the current from the recording electrode flows successfully to the return electrode. The present invention has been achieved thereby.

In the following, the method of the present invention will be explained in more detail with reference to the accompanying drawings.

FIG. 1 is an enlarged view of a winding portion 3a (return electrode) of an ink ribbon 6, which is an example of an apparatus useful for carrying out the method of the present invention. Although not shown in FIG. 1, the other unrolled portion (3b) can also be used as a return electrode. Winding section 3
The conductive layer 9 of the ink ribbon is in contact with the return electrode which also serves as a.

FIG. 2 shows an overall configuration diagram of the example shown in FIG. A signal current from the recording electrode 2 housed in the recording head 1 passes through the conductive layer of the ink ribbon 6 and flows to the winding section 3a and/or the unwinding section 3b, which are return electrodes.

FIGS. 3(A) and 3(B) show two sides of how the unwinding part (winding part)=return electrode and the conductive layer 9 of the ink ribbon are connected. In (A), at least one end of the resistive layer 8, the conductive M9, and the ink layer 10 is fixed to the return electrode with a screw 11, and (
In b), the return electrode 3a and/or 3b and the conductive layer 9 are fixed with an adhesive conductive material 12 such as silver paste.

FIG. 4 shows another example of an apparatus useful for carrying out the method of the present invention, in which one side of the conductive layer 9 is exposed at at least one of the upper and lower ends of the ink ribbon 6, and a return electrode is formed on the exposed part. (Wind-up section 3a and/or unwinding section 3b)
It was designed so that they were in contact with each other. Of course, if the ink ribbon 6 that is wound once has many layers, the conductive layer 9 that has been wound up at the back will pass electricity to the return path type pi 3a and/or 3b through the conductive layer 9 that has been wound up to that point. connected. In addition, in the example shown in FIG. 4, the ink ribbon 6
It is desirable that the connection between the end portion of the electrode and the return electrode 3 be in accordance with the example shown in FIGS. 1 to 3.

In comparing the example shown in FIG. 1 and the example shown in FIG. 4, the latter example shown in FIG. 4 is more preferable. The reason for this is that the method shown in FIG. 4 is better than the method shown in FIG.
Another reason is that the arrival distance to the unwinding part 3b is short and there is little resistance change.

〔effect〕

According to the method of the present invention, it is not necessary to provide a return path electrode as in the conventional method, and in addition, a high quality electrically transferred recorded image can be obtained.

[Brief explanation of drawings]

1 and 4 are schematic illustrations of two preferred embodiments of the method of the invention. FIG. 2 is a diagram for explaining the overall outline of the embodiment shown in FIG. 1. FIG. 3 is a diagram showing how an ink ribbon (recording material for electrical transfer) is fixed to a winding section (unwinding section) which also serves as a return path electrode. FIG. 5 is a diagram for explaining the outline of a conventional electrical transfer recording method. 1... Recording head 2... Recording electrode 3... Return electrode 4... Roller 5... Platen roller

Claims (1)

[Claims] 1. An ink ribbon in which a conductive layer and an ink layer are laminated on a resistive layer is locked to an unwinding part and a winding part arranged at both ends,
In a method of performing electrical transfer recording by bringing a recording paper close to or in contact with the ink layer, the winding section and/or the unwinding section is used as a return electrode, and the conductive layer of the ink ribbon is electrically connected thereto. An electrical transfer recording method characterized by recording in a compressed state.