JPH0513773U - Thermal transfer recorder - Google Patents

Abstract

(57) [Summary] [Structure] The ink sheet guide roller 4 located on the supply side of the ink sheet 2 with respect to the recording head 3 is movable around a certain rotation center 8, and the ink sheet is always moved by a spring 9. Since the ink sheet is pushed in the rewinding direction, after the ink sheet is detected for each color, the ink sheet is rewound by a certain amount at the same time when the ink sheet winding operation is stopped. [Effect] The waste of the ink sheet is eliminated by the distance between the recording head and the mark detecting sensor of the ink sheet, and the transfer area is increased.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a thermal transfer recording device.

[0002]

[Prior Art]

 Conventionally, in a thermal transfer recording device, the ink sheet winding operation is once stopped when each color of the ink sheet is detected, and then the ink is transferred from that position to the recording paper by the recording head.

[0003]

[Problems to be solved by the device]

 However, in the conventional recording apparatus, the ink of the ink sheet is wasted by the distance between the recording head and the sensor that detects the mark portion for detecting each color of the ink sheet, and the area that can be transferred to the recording paper becomes narrow. There was a drawback. Therefore, in order to solve such a drawback of the prior art, the present invention rewinds the ink sheet by a predetermined amount (a little shorter than the distance between the recording head and the mark detection sensor) after detecting each color of the ink sheet. It is an object of the present invention to provide a thermal transfer recording device capable of increasing the transferable area while eliminating waste of ink.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention makes the guide roller of the ink sheet movable, and moves the ink roller in the direction of rewinding the ink sheet after detecting the mark portion to rewind the ink sheet.

[0005]

[Action]

 In the thermal transfer recording apparatus configured as described above, after detecting the respective colors of the ink sheet, the position of the guide roller of the ink sheet is moved to rewind the ink sheet by a predetermined amount, and then the ink sheet is transferred to the recording paper. It is possible to eliminate the waste of ink.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing the configuration of the present invention, and FIG. 2 is a partial detailed view of the present invention. In FIG. 1, the ink sheet 2 supplied from the supply-side ink sheet roll 1 is illustrated on the winding-side ink sheet roll 5 via the ink sheet guide roller 4 located on the supply side of the ink sheet 2 with respect to the recording head 3. It is wound in the direction of arrow a by a motor that does not. Here, the take-up side ink sheet roll 5 is designed to idle in the direction opposite to the arrow a by a one-way clutch (not shown) provided on the take-up side ink sheet roll drive shaft (not shown).

The ink sheet guide roller 4 is rotatably attached to the plate 6, and the plate 6 is centered on a shaft 8 fixed to a chassis 7 for fixing the recording head 3 as shown in FIG. It is mounted so that it can rotate. Further, due to the action of the torsion coil spring 9 attached to the shaft 8, the plate 6 and the ink sheet guide roller 4 are always applied with force in the direction of arrow b in FIG. When the ink sheet 2 is wound in the direction a by the ink-sheet roll 5 on the take-up side, the ink sheet guide roller 4 is located at the position (A) in FIG. 1 because the ink sheet 2 is wound with a stronger force than the torsion coil spring 9.

When the mark portion on the ink sheet 2 is wound up to the position of the sensor 10 for detecting each color of the ink sheet 2, the winding of the ink sheet 2 is stopped and the force of the torsion coil spring 9 causes the ink sheet guide. The roller 4 is pushed in the direction of arrow b in FIG. 1 and hits the stopper 7a of the chassis 7 to move to the position (B), whereby the ink sheet 2 is rewound by a certain amount, and then the recording head 3 records the recording sheet. Ink is transferred to 11.

[0009]

Effect of the Invention As described above, the present invention has the effect that the ink sheet is not wasted and the transferable area is increased by rewinding the ink sheet by a predetermined amount after detecting each color of the ink sheet.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of the present invention.

FIG. 2 is a partial detailed view of the present invention.

[Explanation of symbols]

 1 Supply side ink sheet roll 2 Ink sheet 3 Recording head 4 Ink sheet guide roller 5 Winding side ink sheet roll 6 Plate 7 Chassis 7a Stopper 8 Shaft 9 Torsion coil spring 10 Sensor 11 Recording paper

Claims (1)

[Scope of utility model registration request] 1. A thermal transfer recording apparatus using an ink sheet coated with a plurality of colors of ink, in which a mark for color detection of each color is located between the ink application portions of each color, after detecting each color of the ink sheet. A thermal transfer recording apparatus comprising means for rewinding an ink sheet by a predetermined amount.