JPS61167266A - Copying device - Google Patents

Abstract

PURPOSE:To copy originals which are impossible to carry or detach by providing a reading device that reads an original to be copied and a transmitter that transmits read picture signals over the radio waves in a picture reading section. CONSTITUTION:Light 41 emitted from an original 31 is reflected by three mirrors 42 housed in a mirror section 31, passes through a lens 43 provided in a photoelectric converting section 33 and forms an optical image on the light receiving face of an image line sensor 44. The sensor 44 converts the linear optical image formed on its light receiving face into binary monochromatic picture signals 47 for every one picture element by one picture element from an end to another end. Converted signals 47 are synthesized with scanning controlling signals outputted from a scanning controlling circuit 48 that controls the timing of main scanning and sub-scanning and modulated by a modulating circuit 51, and sent to a recording device through a transmitting circuit 52 and an antenna 18 over the radio wave of, for instance, several tens - a hundred and several tens MHz.

Description

[Detailed description of the invention] "Industrial application field" The present invention relates to a copying apparatus that copies documents and the like.

"Conventional technology" FIG. 9 shows a conventionally commonly used copying apparatus.

This copying apparatus includes a platen glass 2 and a platen cover 3 on the top surface of a main body case 1, a tray 4 for taking out copies after copying is provided on the side surface, and an operation panel 6 on a front panel 5.

Place the book 7, etc. that you want to copy on this platen glass 2 with the reading side facing down, and press the start button provided on the operation panel 6. This copying device will start and the copy will be transferred to the tray 4. is discharged.

``Problems to be solved by the invention'' In the past, in this way, copying machines were installed in
The necessary copies were obtained only after the operator brought in the original to be copied and placed it on the platen glass of the copying machine.

However, even if a person wishes to copy, for example, a pattern drawn directly on the ceiling or a painting that is fixed to a wall surface and is not easy to remove or transport, such a conventional copying device cannot obtain the copy.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a copying apparatus that can make copies of such objects that cannot be carried or removed.

"Means for Solving the Problems" The copying apparatus of the present invention includes an image reading section and a recording section configured separately from the image reading section, and the image reading section reads the original to be copied. A reading device and a transmitter that transmits the read image signal on radio waves are provided, and the recording section includes a receiver that receives the radio waves and obtains the image signal, and a recording device that records using the image signal. It is characterized by being provided with.

A support handle is provided on the side of the image reading unit, and by removing the platen cover, you can hold the handle and place it on the wall or ceiling.
Alternatively, you can press the platen glass of the copying machine directly onto the floor and obtain a copy of that part.

This makes it easy to carry the image reading unit.
The image reading section and the recording section are separate bodies, and the image signal read by the image reading section is sent to the recording section by radio waves.

Embodiment FIG. 1 is a perspective view showing an embodiment of a copying apparatus of the present invention.

In the figure, the image reading unit 11 includes its main body case 12.
A platen cover 13 and a platen glass are provided on the top surface of the platen cover 13, although the platen glass is hidden under the platen cover 13 and cannot be seen. An operation panel 15 is provided on the front panel 14, and a support handle 16 is attached to the side surface. Further, near this handle 16, there is a copy start switch 17.
is installed. Extending from the side surface of the main body case 12 is a transmitting antenna wire 18 for transmitting image signals onto radio waves. This main body case 12 is approximately 30 cm long, 40 cm wide, and 5 cm thick, and can accommodate a maximum of No. 4 originals in row A on the platen glass.

On the other hand, the recording unit 21 is provided with an operation panel 23 on the front of the main body case 22 for specifying power on/off, copy density, etc., and a paper feed tray 24 on the left side for supplying recording paper.
A discharge tray 25 from which copies are discharged is provided on the right side.

The structure of the reading device of the image reading section 11 will be explained with reference to FIG. FIG. 2 is a perspective view of the reading device of the image reading section 11.

In this figure, a document 31 is placed on the top surface of the platen glass 30.
is placed with its reading side facing down.

The lower surface of the platen glass 30 includes a lamp 32 that illuminates the reading surface of the document, a photoelectric conversion section 33 that houses an image sensor that converts the read image into a black and white binary digital image signal for each pixel, and this photoelectric conversion section. a mirror part 34 containing several mirrors for optically guiding the image to part 33;
A drive unit 36 is provided that moves the mirror portion 34 at a constant speed in the longitudinal direction of the original 31, that is, in the direction of an arrow 35 in the figure (referred to as the sub-scanning direction).

This drive unit 36 moves the mirror part 34 in the sub-scanning direction along the rail 37, rotates a drive reel 38 by a pulse motor (not shown), etc., and pulls the mirror part 34 by a chain 39.

FIG. 3 is a block diagram of the main parts of this image reading section.
Components that are the same as those in the figures are designated by the same reference numerals and their explanations will be omitted.

Here, light 41 emitted from the original 31 is reflected by three mirrors 42 housed in the mirror part 34, passes through a lens 43 provided in the photoelectric conversion unit 33, and passes through the light receiving surface of the image line sensor 44. to form an optical image.

Figure 4 shows a document 31 read by this image line sensor.
FIG. Image line sensor 4
4 converts the linear optical image formed on the light receiving surface into a black and white binary image signal for each pixel from one end to the other end. During this time, the mirror part 34 in FIG. 3 moves in the sub-scanning direction 35, so when the image line sensor 44 again converts the optical image from one end into an image signal, the reading of the document is better than that read previously. The optical image of a portion shifted by a predetermined width in the sub-scanning direction on the surface is converted.

That is, when the mirror part 34 moves continuously at a constant speed,
As shown in FIG. 4, a series of image signals are obtained by repeating the operation of converting each pixel 46 into an image signal from left to right and slightly downward to the right on the reading surface of the original document 31.

Now, this sequence of read operations from the left edge to the right edge (
The image signal obtained by the main scanning (this is called main scanning) is called an image signal for one line, and its length is called a line length L1, and its pitch is called a reading sub-scanning pitch l.

The image signal 47 converted in this way is combined with a scan control signal output from a scan control circuit 48 that controls the timing of main scanning and sub-scanning, and is modulated by a conversion circuit 51, as shown in FIG. The signal is transmitted via the transmitting circuit 52 and the antenna 18 on a radio wave of, for example, several tens to hundreds of megahertz. As described above, the image reading section of the present invention is provided with a transmitter 54 that transmits an image signal onto radio waves, and this circuit board and the like are incorporated into the main body case together with the second rgJ reading device.

Here, the operation panel 15 provided in the image reading section 11 shown in FIG. 1 will be explained using FIG. 5.

This figure is a front view of the operation panel 15, which includes a start switch 56 for starting the copying process, a stop switch 57 for emergency stop, numeric keys 58 for specifying the number of copies, etc., and specifying various operations. 6 function keys 59 and a liquid crystal display 60 that displays the functions of these keys, operation guides, etc.

The start switch 56 is a switch with the same function as the one located near the handle 1G described in FIG. 1.

The image reading section 11 shown in FIG. 1 has a built-in battery (not shown) for easy portability, and the necessary circuits are turned on as soon as the start switch 18 or 56 is pressed, and the power is turned on at a predetermined timing. Reading begins.

Of course, a separate power switch may be provided. Further, the function of the function key 59 is displayed on the display 60 immediately next to it, and when the operator selects the function and presses the function key 59, the specified result is displayed. In Figure 5, the size of the original is number 4 in column A,
The thickness of the recording paper is the same, number 4 in column A, and a mark 61 indicates that the mode for transmitting read data by radio waves is currently selected.

FIG. 6 is a block diagram of main parts showing the internal structure of the recording section 21 shown in FIG. 1.

In the figure, recording paper 64 is fed from the paper feed tray 24.
is discharged onto the discharge tray 25 after completing its recording work while moving from the left to the right in the figure as indicated by an arrow 65.

In this recording section, an ink donor sheet 66 wound into a roll is sent at a predetermined speed from the left to the right in the figure in the direction of an arrow 68 by a drive roll 67, and a thermal head 70 is used to feed the ink donor sheet 66 into a recording section. .

It applies a corresponding heat pulse to the image.

An image signal sent on radio waves is received by a receiving antenna 71 and detected by a detection circuit 72, and separated into an image signal and a scanning control signal by a separation circuit 73. Such a receiver 74 is provided in the recording section of the copying apparatus of the present invention. The main scanning signal is sent to the print control circuit 75 together with the image signal, and the sub-scanning signal 76 is sent to the scanning circuit 77 to determine the timing for controlling the start and stop of the pulse motor 78 for driving the ink donor sheet 66.

FIG. 7 shows the structure of a signal transmitted from the image reading section to the recording section of the present invention.

This figure shows signals for one page of the scanning surface of a document, with sub-scanning start signals (S, D) 81 and stop signals (SS) 82 provided at the start and end edges, respectively, and between them, signals for one line. An image signal 83 and a main scanning start signal (M) 84 are inserted in a number corresponding to one page. In addition, the sub-scanning start signal 8
1 and immediately before the stop signal 82 thereof, an idle feed signal (D) 85 for performing sub-scanning by a certain amount without recording operation is inserted.

The synthesis and separation processing of these signals can be easily realized using, for example, a signal processing circuit commonly used in facsimile machines.

The copying apparatus of the present invention is used in the following manner.

First, as shown in FIG. 8, the platen glass of the image reading unit is pressed against the painting 88 that is posted on the wall 87 and which the user wishes to copy. At the time of the call, the operator must first
Remove the platen cover 13 shown in the figure and remove the image reading unit 11.
Holding the handles 16 provided on both sides of the main body case 12 with both hands, adjust the position of the picture reading surface and the platen glass.

The recording unit 21 is placed on a nearby table 89 and the power is turned on.

Next, when the start button 17 near the handle 16 of the image reading section 11 is pressed, the mirror part 34 of the image reading section shown in FIG. 2 is moved to start the reading operation. Simultaneously with the activation of the mirror section 34, the sub-scanning start signal 81 shown in FIG. 7 is first issued, and the ink donor sheet 66 of the recording section 21 shown in FIG.
4 is sent above the thermal head 70. This feed amount is determined by the idle feed signal 85. Then, when the main scanning start signal 84 is issued, the image signal for one line transmitted from the image I reading section 11 is transferred to the shift register 79 of the thermal head in the recording section 21, as shown in FIG. The print pulse for printing one line is supplied to the thermal head at the timing when the next main scanning start signal 84 is manually input.

This operation is repeated, and finally, after the recording paper is idle-fed to the discharge tray by the idle feed signal 85, the drive of the ink donor sheet 66 is stopped by the sub-scanning stop signal 82.

If two or more copies are desired, the series of signals shown in No. 7 can be transmitted from the image reading section 11 to the recording section 21 again.

Note that the platen cover can be attached and detached using a well-known structure such as removing screws from a hinge connecting the platen cover and the main body case, or using a snap type.

The copying apparatus of the present invention is not limited to the above embodiment. The image line sensor used in the image reading section may be a direct reading type that directly receives reflected light from the reading surface of the document.
A power source with relatively low power consumption, such as a light emitting diode array, can also be used to illuminate the document surface.

In addition to the wireless method described in the example,
A separate connector or the like may be provided so that image signals and the like can be transmitted using a signal cable during normal use.

The recording section can use various printer devices such as a laser printer, a xerographic type, or a direct thermal type in addition to the type using an ink donor sheet.

This recording section may be either a set of batteries or one that uses a normal commercial power source.

Further, the modulation method for transmitting the image signal onto radio waves can be various methods such as AM modulation or FM modulation that is resistant to external noise.

``Effects of the Invention'' The copying apparatus of the present invention described above has an image reading section that is portable and transmits the read image signal to the recording section on radio waves. This makes it possible to copy areas that were previously impossible to copy, such as ceilings, and expands the scope of use of the copying machine.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the copying apparatus of the present invention, and FIG.
The figure is a perspective view showing the reading device of the image reading unit, Figure 3 is a block diagram of the main parts of the image reading unit, Figure 4 is an explanatory diagram of the document reading method, and Figure 5 is the front view of the control panel of the image reading unit. 6 is a block diagram showing the main parts of the recording section, FIG. 7 is a configuration diagram of signals transmitted on radio waves, FIG. 8 is a perspective view showing the state of use of the copying apparatus of the present invention, and FIG. FIG. 9 is a perspective view of a conventional copying machine. 11... Image reading unit, 13... Platen cover, 16... Handle, 21... Recording unit,
54...Transmitter, 74...Receiver.

Claims (1)

[Claims] 1. Consisting of an image reading section and a recording section configured separately from the image reading section, the image reading section includes a reading device that reads the original to be copied, and a read image signal. A transmitter is provided for transmitting the image on a radio wave, and the recording section is provided with a receiver for receiving the radio wave to obtain an image signal, and a recording device for recording using the image signal. Characteristic copying device. 2. The image reading unit has a removable platen cover,
2. A copying apparatus according to claim 1, further comprising a support handle on a side thereof.