JPS62126765A - Input/output carrier mechanism in facsimile equipment - Google Patents

Abstract

PURPOSE:To simplify the structure of an input/output mechanism in a facsimile equipment by forming integrally an input system and an output system in one body or in a proportionate constitution, and performing paper carrying in both systems with the same roller. CONSTITUTION:A holder 4 has an inclination 12 at its bottom, and the inclination 12 coincides with the guide oblique plane of a frame base 6. A platen roller 1 is driven receiving a power from a stepper motor 7 provided at the upper part of the holder 4 through a belt, but its rotating direction is switched according to whether it is in press-contact with an unmagnification sensor 2 or a thermal head 3. A rack 8 is attached on the holder 4, and is moved in the right and the left directions with a pinion 10 of a miniature motor 9. The press-contact to the platen roller 1 with the sensor 2 and the thermal head 3 is switched by the movement of the holder 4.

Description

Detailed Description of the Invention (Technical Field) The present invention includes an input system (reading system, e.g., 1x sensor) and an output system (printing system, e.g. thermal head), and a document is conveyed by a platen roller and read. In particular, regarding facsimile machines that read with a system, convey recording paper with a platen roller, and print out on this recording paper with a printing system,
This relates to the input/output conveyance (of originals and recording paper) mechanism.

(Conventional technology) FIGS. 3 and 4 show a conventional input/output transport mechanism.

First, in the example shown in FIG.
This is a method in which the platen roller 18 or board 19 is moved from side to side. In this example, there are disadvantages in that the amount of movement is large regardless of whether the platen roller 18 or the board 19 is moved, and it is difficult to apply different pressures to the sensor 16 and the spatula 17 in a well-balanced manner.

In the example shown in FIG. 4, the same magnification sensor 16 and the thermal radar 17 or platen roller 18 are moved up and down.

In this example, when moving the roller 18, the problem is how to drive it, and when moving the sensor 16 and the head 17, there is a large pressure between the platen roller 18 and the head 17. There is a problem in that it is difficult to know how to load the file (the load during movement may become quite large).

(Purpose) The purpose of the present invention is to provide an input/output mechanism for a facsimile device that simplifies the structure and has excellent cost benefits. do.

(Structure) For this purpose, the present invention has an input system (reading system, e.g., 1x sensor) and an output system (printing system, e.g., thermal head) that are integrated or have a similar structure, and paper transport for both is carried out by the same roller. It is characterized by this.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a schematic front view showing the main parts of a facsimile apparatus according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional side view of the same.

In the present invention, the platen roller l is held in place! Wako contact type 1-size sensor 2, thermal radar 3 located on the bottom,
When one side is in pressure contact with the platens a-l by a mechanism to be described later, the other side is positioned in such a way that there is a very small gap between them.

Both the equal-magnification sensor 2 and the thermal head 3 are attached to a holder 4 having a U-shaped cross section via a spring 5 so as to face each other vertically in parallel. The loads applied by the springs 5 are different on both sides.

As shown in Figure 1, the holder 4 has a slope 12 on the bottom surfaceζ
This slope 12 collides with the guide slope of the frame base 6.

The platen roller 1 is driven by receiving power from a stepper motor 7 provided above the holder 4 via a belt.
The direction of rotation is switched depending on whether it is in pressure contact with the equal-magnification sensor 2 or the thermal head 3.

A rack 8 is attached to the holder 4 as shown in FIG. 1, and is moved in the left-right direction in FIG. 1 by a pinion 10 of a small motor 9. By moving this holder 4, the pressure contact between the equal-magnification sensor 2 and the thermal head 3 against the platen roller 1 is switched.

That is, when the holder 4 slides to the left in the figure along an upward slope, it rises and comes into contact with the equal-magnification sensor 2 at position B with an appropriate pressure contact force.

Conversely, if it slides to the right in the figure along a downward slope, it descends and comes into pressure contact with the thermal head 3 at position A.

It would be ideal if the drive motor 9 for the holder 4 could be used for position control, such as a stepper motor, but a small, low-cost I
- When using a DC motor, the stop position can be controlled by providing a microswitch 11 or the like as shown in the figure.

In Figure 2, the slope of the bottom of the holder 4 and the frame base 6
For example, there is a dovetail groove 13 for guiding between the upper slope and the upper slope.
By providing the above, the holder can be moved accurately and the holder 4 can be prevented from lifting or rattling. The movement (switching) of the holder 4 is carried out not only by the rack and pinion of the motor 9, but also by the bushing and pinion by a solenoid, etc.
Pull method % type % In the same figure, 14 is a document carrying guide slope, and the document carried in from here is conveyed between the platen roller 1 and the same-size sensor 2, and is read by the same-size sensor 2. The scanned original is discharged from the recording paper inlet 15. The recording paper inlet 15 is for carrying the recording paper between the platen roller 1 and the thermal head 3, where the recording paper is printed and then discharged to the opposite side.

The operation will be explained below.

First, at the time of transmission, since the holder 4 is in the position shown in FIG.

When the device enters the receiving state, the holder drive motor 9 rotates and the holder 4 moves to position B. When the microswitch 11 is turned on, the motor 9 is stopped, and the platen roller 1 is now brought into pressure contact with the thermal head 3. . The stepper motor 7 now reversely rotates clockwise to print and transport the recording paper.

(Effects) The present invention is as described above, and according to the input/output conveyance mechanism of the facsimile machine according to the present invention, paper conveyance by the equal magnification sensor and the thermal head is carried out by a common platen roller. The drive system (including stepper motors, pulleys, belts, rollers, etc.) can be provided in one system, reducing costs. Furthermore, for the same reason, space can be saved and power consumption can be reduced within the device, so the size of the machine can be reduced.

[Brief explanation of drawings]

Fig. 1 is a schematic front view showing the main parts of a facsimile machine according to an embodiment of the present invention, Fig. 2 is a vertical side view of the facsimile machine, and Figs. 3 and 4 are respectively different conventional input/output transport mechanisms. FIG. 1...Platen roller, 2...Same size sensor, 3.
...Thermal head, 4...Holder (structural member),
6...Base frame, 7...Stepper motor, 9
...Small motor. Agent Patent Attorney 2 Kenjini - Figure 3

Claims (2)

[Claims] (1) A close-contact type reading system that reads the original, a printing system that prints on recording paper, and the reading system and printing system facing each other and holding them together by applying a certain spring pressure, a base frame having a guide slope on which the structural member slides back and forth; a base frame having a guide slope on which the structural member slides back and forth by a fixed amount; There is a drive mechanism that presses either the reading system or the printing system onto the roller, and a drive mechanism that is pulse-driven by a stepper motor between the reading system and the printing system. An input/output transport mechanism for a facsimile machine, characterized by comprising a platen roller for transport. (2) The input/output conveyance mechanism of a fushikishimiri apparatus as set forth in claim (1), wherein the reading system is a same-size sensor, and the printing system is a thermal head.