JPS6129577A - Heat transfer printer - Google Patents

Abstract

PURPOSE:To eliminate slippage between ink ribbon and recording paper and obtain high quality prints, by applying pressure to end surface of winding-up side of the ink ribbon by means of a friction mechanism. CONSTITUTION:When image information is received, a thermal head 6 is pressed against a platen 9 by a solenoid 7, with an ink ribbon 1 and recording paper 8 interposed between them and letters and images are recorded under heat generated by an exothermic material. The ink ribbon 1 after recording is wound on a takeup core 1b via guides 2c and 2d. In the winding, a friction plate 3 engaged with a cartridge 4 applies pressure in takeup width direction of the ink ribbon 1 by pressing action of a friction spring 5 to prevent irregular winding. Thus, increase of winding load and slippage between the ink ribbon and the recording paper are eliminated and quality of prints is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an ink ribbon feeding mechanism for a thermal transfer printer that performs thermal transfer recording using narrow thermal transfer ink, yin.

(Prior art) Conventionally, this type of thermal transfer printer uses a thermal transfer recording method that selectively thermally transfers image information to recording paper using a narrow thermal transfer ink ribbon housed in a cartridge and a thermal head, and is inexpensive. It has the advantage that information can be recorded on plain paper.

(Problem to be Solved by the Invention) However, the thickness of the ink ribbon for thermal transfer used in this thermal transfer recording method is 7 to 1
Since it is as thin as 0 μm, it is pressed against the platen through the recording paper by the thermal head and runs in the opposite direction to the walking direction of the paper, and when it is wound up by the winding paper,
If the winding cine alignment occurs in the width direction of the ink ribbon and comes into contact with the inside of the cartridge or cartridge, increasing the winding load, the winding speed of the ink ribbon decreases and the space between the ink ribbon and the recording paper increases. This has the disadvantage that slippage occurs on the paper and print quality deteriorates.

By aligning the winding cine in the width direction of the ink ribbon, the present invention prevents an increase in the winding load, eliminates slippage between the ink ribbon and the recording paper, and achieves high quality printing. A thermal transfer printer is provided.

(Means for Solving the Problems) The present invention provides a thermal transfer ink that transfers ink onto a recording medium by heating the thermal head 6 and the thermal head 6. /1, and a thermal transfer printer having a small winding core 1b that winds the ink ribbon 1, the ink IJ
, yn 1 are provided with friction mechanisms 3 and 5 for pressurizing the winding side end surfaces thereof.

(Function) By applying pressure to the winding side end surface of the ink ribbon 1 by the friction mechanism 3.5, uneven winding of the ink ribbon in the width direction is prevented, an increase in winding load is prevented, and the ink ribbon is Good print quality is obtained by eliminating slippage between the paper and the recording paper.

(Example) Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a conceptual diagram of the vicinity of the recording section of a thermal transfer flexible film showing an embodiment of the present invention, and FIG. 2 is a sectional view of the inkliden winding section.

The arm is fed out from the core 1a and moves to the guide 2a.

2b, 2c, and 2d, the ink ribbon is wound onto the ink ribbon winding core 1b in the direction of arrow A.

As shown in FIG. 2, a friction grating 3 engages with a guide bin 4a of a cartridge 4 on the winding core lb portion of the ink ribbon 1, and applies pressure in the width direction of the winding ribbon of the ink ribbon/1 by a friction spring 5. It is attached like this.

6 is a thermal head; 7 is the thermal head 6;
This is a solenoid that operates retraction. The above components are mounted on a carrier (not shown), and the above components are mounted on a carrier (not shown). The vehicle travels in direction B, which is opposite to the traveling direction of No. 71.

Further, 8 is recording paper, and 9 is grating.

Next, the operation will be explained using figures.

Based on the image information, the thermal head 6 is pressed against the platen 9 via the ink cartridge 1 and the recording paper 8 by the solenoid 7, and at the same time, the thermal head 6
A heating element (not shown) inside generates heat, and the ink ribbon 1
The ink is melted and transferred onto the surface of the recording paper 8 to record characters and images. After being recorded, the ink ribbon 1 is wound onto a winding core 1b via guides 2C and 2d.

When the ink ribbon 1 is wound around the core 1b, the friction plate 3 engaged with the cartridge 4 presses the ink ribbon 1 in the width direction by the force of the 7-reaction spring 5. The pressure is determined by the winding tension of the ink ribbon 1, but is usually 30...80g.
It is the rank. ), thereby preventing the winding shin alignment of the ink ribbon 1 to the winding core 1b.

(Effects of the Invention) As explained above, the present invention prevents the winding shins of the ink ribbon from being aligned in the winding width direction by applying pressure in the winding width direction of the ink ribbon at the ink ribbon winding section. However, it is effective in preventing an increase in the winding load, eliminating slippage between the ink ribbon and the recording paper, and obtaining good printing quality.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram of the vicinity of the recording section of a thermal transfer printer showing an embodiment of the present invention, and FIG. 2 is a sectional view of the ink def winding section. 1...-ink ribbon, 1b...ink ribbon? Winding core, 3...Flixy-I/Zolato, 4...Cartridge, 5...7 Rikushiyo/Spring, 6...
- Thermal head, 7... Solenoid, 8... Recording paper, 9... Platen.

Claims (1)

[Claims] (1) A thermal head that selectively heats a recording surface according to image information; an ink ribbon for thermal transfer that runs parallel to the print line and transfers ink onto a recording medium by heating the thermal head; 1. A thermal transfer printer having a take-up core for winding up an ink ribbon after recording, the thermal transfer printer comprising a friction mechanism that presses a wind-up side end surface of the ink ribbon.