JPH055724Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Use The present invention relates to an apparatus using photo-fixable thermosensitive recording paper, and in particular to control of a fluorescent lamp used in a fixing section unit.

BACKGROUND ART Conventionally, in this type of facsimile apparatus, the fixing fluorescent lamp remains lit from the start of communication until the end of communication.

Problems that the invention aims to solve: Therefore, when continuous communication is carried out using conventional equipment, the fluorescent lamps become hot due to continuous lighting, and the current of the fluorescent lamp tubes decreases, resulting in a decrease in the amount of light. However, the problem was that it caused poor fixing.

Further, in an attempt to eliminate the above-mentioned drawbacks, it is possible to provide a fan for cooling, but this has the drawbacks that it takes up a lot of space, requires a duct, increases costs, and makes the device larger.

The present invention has been made in view of the above-mentioned conventional circumstances, and therefore, the purpose of the present invention is to provide a novel fixing fluorescent lamp control device that makes it possible to eliminate the above-mentioned disadvantages inherent in the conventional technology. It is about providing.

Means for Solving the Problems In order to achieve the above object, the fixing fluorescent lamp control device according to the present invention includes one recording head that prints on light-fixed two-color thermal recording paper, and a a roller that is pressed so that the recording head prints a first color and then once conveys the recording paper to the discharge side, and then rewinds the recording head to print the second color and then conveys the recording paper to the discharge side; A fluorescent lamp is used to fix the transported recording paper, and the fluorescent lamp is turned on when the recording paper printed with the first color is transported, and the fluorescent lamp is turned on when the recording paper printed with the second color is transported. and a control means for controlling the fluorescent lamp to turn off.

Embodiment Next, a preferred embodiment of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of the present invention.

In FIG. 1, a photofixable two-color thermal recording paper (hereinafter referred to as recording paper) 1 is fed by a head 2 and a platen roller 3, records the first color, and is sent to a fixing section. The fixing section includes a fixing fluorescent lamp 4 and a reflector plate 5.
The fixing fluorescent lamp 4 is controlled to turn ON/OFF by a lighting power source 6 and a control unit 7. After the recording of the first color is completed and fixed, the recording paper 1 is rewound by the head 2 and platen roller 3 for recording of the second color. At this time, the rewound recording paper 1 is in the state shown by 1'.

Next, the platen roller 3 rotates normally, and the second color is printed on the recording paper 1 by the head 2 while feeding the recording paper. At this time, the fluorescent lamp 4 is turned off by the control unit 7. The fed-out recording paper 1 is cut by a cutter 8 and discharged from the apparatus by a discharge roller 9.

According to the inventor's experiments, when the fixing fluorescent lamp 4 is turned on continuously, the tube surface of the fixing fluorescent lamp 4 rises to about 180 degrees Celsius in a room at 25 degrees Celsius, and the fixing speed is determined by the tube surface temperature at its best. It has been confirmed that the temperature decreases to about 1/2 compared to 60℃. Furthermore, since the recording paper 1 is a thermal paper, there is a drawback that the recording paper 1 becomes colored if it is stopped under the fixing unit for more than a few seconds due to the high temperature. For this reason, it is necessary to prepare a cooling fan or the like for cooling.

In this invention, since the fixing fluorescent lamp 4 is turned off for the second color, the "ON" time is approximately halved, and the temperature on the tube surface of the fixing fluorescent lamp 4 can be suppressed to approximately 110°C in a 25°C room. The fixing speed is also suppressed to 1/1.5 of the best speed,
Further, even when the recording paper 1 was stopped for several seconds, no discoloration occurred.

Effects of the invention As explained above, according to the invention, the temperature of the fixing fluorescent lamp can be lowered by turning off the fixing fluorescent lamp when printing the second color on light-fixing two-color thermal recording paper. This makes it possible to eliminate fixing defects, and also makes the apparatus more compact and economical since no cooling parts are required.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention. 1,1'...Light fixing two-color thermal recording paper, 2...
Head, 3... platen roller, 4... fluorescent lamp for fixing, 5... reflector, 6... lighting power supply, 7... control unit, 8... cutter, 9... discharge roller.

Claims (1)

[Claims for Utility Model Registration] One recording head for printing on light-fixed two-color thermal recording paper;
a roller that once conveys the recording paper to a discharge side after printing a color, and then rewinds the recording paper and conveys the recording paper to the discharge side after the recording head prints a second color; and the conveyed recording paper. a fluorescent lamp for fixing the color, the fluorescent lamp is turned on when the recording paper printed with the first color is conveyed, and the fluorescent lamp is turned off when the recording paper printed with the second color is conveyed; 1. A fixing fluorescent lamp control device comprising: a control means for controlling the fixing fluorescent lamp so as to control the fixing fluorescent lamp;