JPS6364946B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a facsimile transmitting device that expands the scope of application of transmitted documents and improves operability.

Conventionally, in facsimile transmission devices, light emitted from a light source such as a fluorescent lamp is irradiated onto the surface of the transmitted document, and the reflected light is picked up by a lens system.
An image is formed on a photoelectric conversion element such as a CCD and converted into an electrical signal for main scanning scanning, and for sub scanning, the original to be sent is conveyed by conveying means such as rollers, and is read sequentially. It was common.

However, when transporting a transmission document by sandwiching it between rollers, thin documents tend to jam, strip-shaped documents shorter than the distance between the rollers cannot be sent, and extremely thick documents cannot be sent. There are drawbacks such as the inability to send originals, and the addition of various constraints on the size, thickness, paper quality, etc. of the originals to be sent.

The present invention aims to eliminate such drawbacks, expand the scope of application of transmitted documents, and improve operability.The present invention is characterized by an optical system unit including a light source, a lens system, and a photoelectric conversion element; It includes a means for switching the movement stop of the system unit, a document transport mechanism section, and a document stationary table, and a sub-scanning method in which the optical system unit is stopped and the document is sequentially read and reddened while moving the document, and The scope of application of the document has been expanded by making it possible to use it in combination with a sub-scanning method in which the document is placed on a stationary stand and read sequentially while the optical system unit is moved.

Hereinafter, a preferred embodiment of the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a schematic cross-sectional view showing an embodiment of a facsimile transmission device according to the present invention. In the figure,
Reference number 1 indicates an optical system unit, which irradiates the document surface with a fluorescent lamp 2, and the reflected light is refracted by a mirror 3 and focused on a photoelectric conversion element 5 by a lens system 4, where it is photoelectrically converted. It is configured as follows. Second
As shown in the plan view of the optical system moving mechanism shown in the figure, the optical system unit 1 is supported by shafts 6a and 6b. Two bearings 7 are coaxially attached to the optical system unit 1 and are slidably fitted to the shaft 6a. The ball bearing 8 is connected to the optical system unit 1.
The optical system unit is fixed to a support 9 attached to the optical system, and its outer ring is configured to roll on a shaft 6b, thereby supporting the optical system unit. Also shafts 6a, 6
b are fixed to the frame 10 in parallel to each other. 11 is a connecting fitting, which connects the optical system unit 1
and the timing belt 12 are connected. The timing belt 12 is stretched between pulleys 13 and 13, and each pulley 13 is fixed to a shaft 15 of a sub-scanning motor 14 and a shaft 17 of a return motor 16, respectively. Sub-scanning motor 14, return motor 16
are each fixed to the frame 10 via a bracket 18. Micro switch 19a, 19
b, 19c are operated by an actuator 20 attached to the optical system unit 1 to detect the position of the optical system unit 1, and the rotation of the sub-scanning motor 14 and return motor 16 is controlled by the means shown in FIG. This is for stopping the optical system unit 1. 36 shows a state in which the optical system unit 1 is stopped by the micro switch 19a, and 37
indicates a state stopped by the micro switch 19b.

An example of the document resting table is shown in FIG. 3, and 20' is
It is a document set plate A, and a rail assembly 21.
It is supported by and can be pulled out in the direction of arrow a. Rail assembly 21 is fixed to frame 10. Reference numeral 22 denotes a document holding plate, which is made of, for example, a transparent plastic film material, and is fixed to the document set plate A20' with a hinge 23, and can be opened and closed in the direction of arrow b by lifting a handle 24. It is composed of Therefore, when setting the original 25, pull out the original setting plate A20' toward you (in the direction of arrow a), insert the original 25 between the set plate A20' and the original holding plate 22, push it back, and complete the setting. becomes.

Referring again to FIG. 1, reference numeral 26 indicates a document conveyance mechanism section, in which reference numeral 27 indicates a document set plate B.
It is. 28 is a main roller, 29a and 29b are pulleys, and 30 is a separation belt stretched between the pulleys 29a and 29b. The main roller 28 is rotated in the direction of arrow c by a drive source (not shown). The pulley 29a rotates in the direction of arrow d,
Therefore, pulley 29b is also rotated in the same direction as pulley 29a via separation belt 30.
Further, the separation belt 30 is arranged so as to be lightly pressed against the main roller 28, and the friction coefficient of the surface of the main roller 28 is set to be larger than the friction coefficient of the surface of the separation belt 30 that comes into contact with the main roller. , and the coefficient of friction between the main roller 28 and the separation belt 30 is set to be greater than the coefficient of friction of the document paper normally used. For this reason, when inserting multiple sheets of original paper, the main roller 2
8 and the separation belt 30, the sheets are separated one by one and fed. 31a and 31b are feed rollers driven by an unillustrated drive source to move arrow e.
Further, 32a and 32b are pinch rollers, which are pressed against feed rollers 31a and 31b, respectively, by spring force. Therefore, when a plurality of originals 33 are set on the original setting plate B27, they are conveyed one by one from the bottom and stored in the stacker 35.

Next, the operation of the optical system unit will be explained with reference to FIG.

In Fig. 4, reference number 401 is a mode selection switch that selects between stationary original reading mode and moving original reading mode.When contact A is selected, the original reading mode is set to stationary original reading mode, and when contact B is selected, the original reading mode is set to moving original mode. mode is set. 4
02 is an encoder, 403 is a counter, 404 is a decoder, and 422 is a clock generator.

When reading the original while it is still, press the selection switch 4.
When 01 is set to contact A, the output of the AND gate 405 becomes "high level", and the output of the OR gate 406 becomes "high level", thereby setting the encoder 402 to 3, and converting 3 from QA to Qc in binary code. is output, which is the counter 4
03. The output of the counter 403 is decoded by the decoder 404.
3 of 04 becomes “high level” and the drive circuit 40
7 is driven and the return motor 16 is rotated,
As a result, the optical system unit 1 is moved in the direction of arrow f in FIG. The micro switch 19a is the actuator 20 of unit 1.
When turned “ON” by
The encoder 402 is set to 4, and in the same way as above, 4 of the decoder 404 becomes "high", and the return motor 16 stops and enters a standby state.

Therefore, when the sub-scanning switch 409 is pressed, the output of the AND gate 410 becomes "high",
As a result, 5 is set in encoder 402,
Similarly, 5 of the decoder 404 is output and OR
The output of gate 411 becomes "high". As a result, the drive circuit 408 operates to drive the sub-scanning motor 1.
4 rotates, the optical system unit 1 moves in the direction g in FIG. 2, and sub-scanning is performed. When the micro switch 19b is turned on by the actuator 20 of the optical system unit 1 during the sub-scanning,
The output of AND gate 412 becomes "high" and encoder 402 is set to 6. As a result, the decoder 404 outputs 6, and when the timer of the delay circuit 413 turns "ON" after the initial setting value T seconds, the output of the AND gate 414 becomes "high".
The output of OR gate 406 becomes "high". Therefore, the encoder 402 is set to 3, the decoder 404 outputs 3, the return motor 16 rotates, the optical system unit 1 moves in the direction of the arrow f in FIG. 2, and the actuator 20 activates the micro switch 19a. Stops when turned “ON”.

In this way, in the document static reading mode, the optical system unit 1 performs sub-scanning between X and Y in FIG. 1 to read the document.

On the other hand, in the document movement reading mode, when contact B of the mode selection switch 401 is selected,
The output of AND gate 415 goes "high" and encoder 402 is set to 1, so decoder 404 outputs 1. As a result, the OR gate 411 becomes "high", the drive circuit 408 operates, the sub-scanning motor 14 rotates, and the optical system unit 1 moves in the direction of arrow g. When the actuator 20 of the optical system unit 1 turns on the micro switch 19c, the AND gate 416
output becomes “high” and encoder 402 becomes “2”.
Therefore, the decoder 404 outputs 2 and the sub-scanning motor 14 stops. In this state, the document transport mechanism section 26 is operated to move and read the document.

In addition, OR gates 417, 419, 420 and AND
The gates 418 and 421 constitute a clear circuit for the counter 403, and when the selection switch 401 is set to B in the original stationary reading mode, the output of the OR gate 417 becomes "high".
The output of AND gate 418 becomes “high” and OR
The output of gate 419 goes high, thereby clearing counter 403.

In addition, even in the document movement reading mode, the output of the OR gate 420 is "high", so when the selection switch 401 is selected to A, the output of the AND gate 421 becomes "high", and the OR gate 41
9 becomes "high", and as a result, the counter 403 is cleared.

With the above configuration, general transmission originals that can be transported by a transport means such as rollers can be set on the original set plate B27, and special originals such as thin originals or strip-shaped originals can be set on the set plate A20'. By setting and transmitting the data, adaptability to the manuscript is greatly improved.

Although one preferred embodiment of the present invention has been described above, this is merely an example and does not have a limiting meaning, of course.
Accordingly, the present invention can be practiced with various modifications without departing from the spirit of the invention.
For example, in the present embodiment described above, the tip of the document conveying mechanism section 26 is located approximately at the Z position in FIG. 1 and below the Z position of the optical system unit 1. It is also possible to dispose the portion 26 above the optical system unit 1 whose tip is at the position Y in FIG. 2 and in the state 37. In that case, it is necessary to adopt a configuration in which the fluorescent lamp 2 and mirror 3 can be rotated by 90 degrees, or a configuration in which only the mirror 3 can be rotated by 90 degrees and a separate fluorescent lamp is provided to illuminate the document from below. , when in document movement reading mode, it will be executed at the Y position,
Therefore, since it is not necessary to move the optical system unit 1 to the Z position, there is an advantage that the apparatus can be configured compactly. Although various other modifications can easily be imagined, the above and other modifications are all included within the scope of the present invention.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of a facsimile transmitter according to the present invention, FIG. 2 is a plan view showing an example of an optical system moving mechanism, FIG. 3 is a perspective view showing an example of a document stationary table, and FIG. FIG. 4 is a configuration diagram showing an example of an optical system unit control circuit. 1...Optical system unit, 6a, 6b...Axis, 7
... Bearing, 6 ... Ball bearing, 9 ... Support column, 10 ... Frame, 11 ... Connection fitting, 12
...Timing belt, 14...Sub-scanning motor,
16... Return motor, 19a-19c... Micro switch, 20... Actuator, 20'...
...Document set plate A, 21...Rail assembly, 22...Document holding plate, 25, 33...Document, 26...Document transport mechanism section, 27...Document set plate B, 35...Stacker, 401... Mode selection switch, 402... Encoder, 40
3...Counter, 404...Decoder, 407,
408...Drive circuit, 413...Delay circuit, 42
2...Clock generator.

Claims (1)

[Claims] 1 An optical system unit including a light source, a lens system, and a photoelectric conversion element, a means for switching the movement and stop of the optical system unit, and a first original setting plate, and an original set on the first original setting plate. a document transport mechanism unit for transporting a document; a document holding table having a second document setting plate and placing the document set on the second document setting plate; a stacker for accommodating originals conveyed and read by the mechanism section, and the optical system unit is in a stationary position when reading a moving original inserted into the document conveyance mechanism section under the control of the switching means. . A facsimile transmitting apparatus, characterized in that when reading a stationary original on the document stationary table, the document on the document stationary table is sub-scanned.