JPS61242869A - Color transfer sheet - Google Patents

Abstract

PURPOSE:To obviate malfunctions in detecting the trailing end, by specifying the positional relationship between block basis marks, color basis marks and end indicating the trailing end of a color transfer sheet. CONSTITUTION:The distance (a) from the leading end to the trailing end of the color basis mark and the block basis mark, respective distances (e), (d), (b) between the end mark A (9) and the preceding block basis mark and the block basis mark preceding the preceding block basis mark, respective distances (h), (f), (g) between the end mark B (10) and the preceding color basis mark and the color basis mark preceding the preceding color basis mark, and distances (i), (j) of and between ink-coated parts are set in the relationships of a a<i, g b/3 j, 2g+a<d<b, e>=b, f<g and h>=g. Accordingly, even when the length of the end mark is large and the position of the mark relative to a detecting element is unintentionally shifted, the end mark is constantly located at a predetermined position when detecting the end mark of the color transfer sheet by the detecting element, and malfunction in detecting the trailing end of the color transfer sheet is obviated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a color transfer sheet used in a color printer.

2. Description of the Related Art As a prior art, FIG. 3 shows the vicinity of the end of a conventional color transfer sheet. In Figure 3, 1 is the base fill A
, 2 is a block mark indicating the block division of the ink application section 2 consisting of a set of multiple colors, 5, 6, 7.8 is a color mark indicating the division of each application section 2, 11 is the end of the color transfer sheet, 12.13 is the end mark A, B, 14, 15 indicating the end of the transfer sheet
is a detection element that detects a mark.

FIG. 4 shows the relative positions of the color transfer sheet and the sensing elements 14 and 15. In FIG. 4, the arrow indicates the direction of movement of the color transfer sheet. The line segment connecting the detection elements 14 and 15i and the moving direction of the color transfer sheet are approximately perpendicular, and the perpendicular line drawn from the detection element 14 is approximately perpendicular to the straight line connecting the block marks 3 and 4. The detection elements 14.15 are arranged at positions such that the perpendicular line drawn from the detection element 16 is approximately orthogonal to the straight line connecting the color-coded marks 6.6.

Also, color-based marks 5, 6, 7.8 and block-based marks 3
. , the distance e between the end of the block mark 4 and the end of the end mark 12, the distance f between the end of the color mark 7 and the end mark B13, and the distance between the end of the color mark 7 and the end of the color mark 8. the distance g from the end of the color-specific mark 7 to the end of the end mark B13, the distance 1 from each tip to the end of the ink application section 2, and the distance g from the end of the ink application section 2 to the next ink The distance j to the tip of the applicator 2 is a(1, (given t
)/3 given j, b insult d→O, and there is the following relationship: f4h4g.

The sensing elements 14.15 are sensing circuits (not shown in the figure).

), and when detecting only block marks 3 or 4, the detection circuit detects the division of one block and detects only color marks 6, 6, 7, or 8. In this case, the detection circuit detects the division of each color, and when the detection elements 14 and 15 detect the marks at the same time, it is detected that the color transfer sheet is at the end, and the color transfer sheet feeding is controlled.

Problems to be Solved by the Invention In the conventional example described above, the detection element 14.1 is caused by printing errors caused by the color transfer sheet printing machine and mechanical errors of the printer.
Due to misalignment of the sensing element 14.15, etc.
may not be detected simultaneously for end marks 12 and 13. In the above case, even though it is the end of the color transfer sheet, the sensing elements 14 and 15 indicate the end of the color transfer sheet.
2. If one of the end marks B13 is detected first, the detection circuit may recognize it as a division of one block or a division of each color, resulting in a malfunction.

Means for Solving the Problems Therefore, in the present invention, in order to solve the above problems, the distance a from the tip to the end of each color mark and block mark and the distance a of the block mark immediately before the end mark are determined. The distance from the tip to the tip of the block mark two blocks before the end markum is the distance d from the tip of the block mark immediately before the end markum to the end of the end markum, and the block immediately before the end markum. The distance 6 from the end of another mark to the end of the end mark, the distance f from the tip of the colored mark immediately before end mark B to the end of end mark B, and the distance f from the end of the colored mark immediately before end mark B to the end of end mark B. Distance g from the tip to the tip of the color-coded mark two places before end mark B, distance from the end of the color-coded mark immediately before end mark B to the end of end mark B, and the distance of the ink application part. Between the distance 1 from each tip to the end and the distance j from the tip of the ink application part to the tip of the adjacent ink application part, a 1°K' = b
/3j, 2g+a(d(b, e≧b, f×g, and h≧g).

Effect of the present invention By using the above-mentioned means, the end mark of the present invention has a longer mark length than the end mark of the conventional example, and the leading edge position is also in the opposite direction to the end of the color transfer sheet. The end position will also move in the end direction.

Therefore, even if the end mark is misaligned with respect to the detection element due to printing errors caused by conventional color transfer sheet printers or mechanical errors of the printer, whenever the detection element detects the end mark of the color transfer sheet, Since the end mark is located at a predetermined position, it is possible to eliminate malfunctions when detecting the end of the color transfer sheet.

Embodiment FIG. 1 shows an embodiment of the color transfer sheet of the present invention.
The figure shows the relative position of the color transfer sheet and the sensing element.

1~6.9~1°1.14.15 are the same as the conventional example, and 7
, 8 is the end mark t indicating the end of the color transfer sheet.
Furthermore, the definition of the distance j is also the same as in the conventional example, and furthermore, the positional relationship between the sensing elements 14 and 15 and the color transfer sheet is also the same as in the conventional example.

Here, the positional relationship between end marks 9 and 1o is 1 ttg4
b/s4j, 2g+a<1(b, e≧b.

There is a relationship such that t<r; and h≧g. In other words, the final ink application area 9 of the color transfer sheet is yellow! The detection elements 14, 15 start sensing at the end of printing, which means that the end marks 9, 1o are already at the detection position at that point.

Effects of the Invention As described above, according to the present invention, by satisfying an extremely simple mark position relationship without improving the two mechanical circuits of the printer, malfunctions in conventional end detection can be completely eliminated. and is extremely useful in practice.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a color transfer sheet according to an embodiment of the present invention, FIG. 2 is a diagram showing the relative position of the color transfer sheet and the detection element according to an embodiment of the present invention, and FIG. 3 is a conventional example. FIG. 4 is a diagram showing the relative position of the color transfer sheet and the sensing element in a conventional example. 1... Base fill A, 2... Ink application area, 3.4... Mark by block, 5, 6
, 7, 8...Colored marks, 9...End mark A, 10...End mark B0

Claims (1)

[Claims] A base film, an ink application area, a block mark indicating the block division of the ink application area consisting of a set of multiple colors, a color mark indicating the division of each ink application area, and an end mark of the color transfer sheet. an end mark A and an end mark B, a distance a from the tip to the end of each of the color-specific marks and the block-specific mark, and a distance a from the tip of the block-specific mark immediately before the end mark A to the end mark A; The distance b from the tip of the block mark that is two blocks before the end mark A, the distance d from the tip of the block mark that is immediately before the end mark A to the end mark A, and the distance d from the end mark A to the end mark A, A distance e from the end of the block-specific mark immediately before to the end of the end mark A, and a distance f from the tip of the color-based mark immediately before the end mark B to the end of the end mark B.
, the distance g from the tip of the colored mark immediately before the end mark B to the tip of the colored mark two places before the end mark B, and the colored mark immediately before the end mark B. The distance h from the end of the end mark B to the end of the end mark B, the distance i from the tip of each of the ink application parts to the end, and the distance j from the end of the ink application part to the end of the adjacent ink application part. Between a<
i, g≒b/3≒j, 2g+1<d<b, e≧b, f<
A color transfer sheet designed to satisfy the relationship: g, and h≧g.