JPH01301270A - Film-printer - Google Patents

Abstract

PURPOSE:To enlarge and copy the picture image of a film with high picture quality while transmitting the enlarged and copied picture image to a remote place by enlarging and projecting the picture image on the film through an optical means, optically reading the picture image formed onto a recording material through a recording means, converting the picture image into an electric signal and modulating the electric signal so as to be transmitted over a communication circuit. CONSTITUTION:A latent image is formed on the basis of a projection picture image proportional to the picture image density of a microfilm F continuously exposed onto a sensitizing drum 9A through an electro-statographic process in a sensitizing drum unit 9, and changed into a toner image, and the toner image is printed out onto recording paper fed from a paper-feed tray 10. A picture image is read from the upper section of recording paper P by a reading scanning section 14 immediately before a paper-discharge roller 12, a picture image electric signal acquired is encoded by an encoding section 15, and the encoded signal is guided to a transmission control section 17 by a control section 16, and modulated by the section 17 and output to the outside by a general telephone line 18.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a film printer, and more particularly to a film printer that is capable of enlarging and copying image information recorded on a film in a reduced size onto printing paper.

[Conventional technology]

A conventional microfilm printer, as an example of a film printer, is configured to once enlarge and project an image on a microfilm and then print it on print paper based on a known electrostatic photographic process.

In addition, there are microfilm scanners that use a one-dimensional image sensor to convert microfilm images into electrical signals, and stand-alone scanners that use a one-dimensional image sensor to read a sheet-like original and transmit it over a regular telephone line. Fax machines are known.

(Problem to be solved by the invention) However, from No. 1, the conventional microfilm printer described above only has the function of enlarging and copying the image information on the microfilm onto printing paper, and therefore,
When sending microfilm image information to a remote location, the only option was to send the microfilm itself directly or transport an enlarged copy of it, and the only option was to transmit the enlarged copy using a known stand-alone facsimile machine. .

However, if you transport it directly, not only does it take a long time! Is 4 procedures, etc. will be a hassle.

On the other hand, when using a facsimile machine, it not only takes double effort to make an enlarged copy using a microfilm printer and then transmits it using a facsimile machine, but it also costs money because it requires multiple devices. It takes up a lot of space and requires a dedicated space.

Furthermore, when using a conventional microscanner device,
In terms of transmitting image information, the above-mentioned disadvantages are solved, but if you need an enlarged copy of the image at hand along with the transmission, the digital image information read with a micro scanner can be transferred to a laser beam/page printer or a thermal transfer serial printer. It was necessary to print it out using a printing device such as a printer, or to create an enlarged copy using a separate microfilm printer.

However, when printing based on the image information read by a scanner, there is a disadvantage that the image quality deteriorates significantly.
Moreover, the equipment cost is also high.

In addition, when printing using a separate microfilm printer, operations such as loading the microfilm and searching for the desired frame image must be performed again, resulting in a significantly lower work efficiency.Furthermore, the dedicated space of the device is large. It also had the disadvantage of becoming Incidentally, the above-mentioned defects occur not only on microfilms but also on other films.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and to provide a film blink that is capable of enlarging and copying a film image with high image quality and simultaneously transmitting the enlarged copy image as it is to a remote location. .

(Means for Solving the Problem) In order to achieve the above object, the present invention provides an optical means capable of enlarging and projecting an image on a film, and a method of projecting an enlarged image onto a recording material by exposing the image enlarged by the optical means. A recording means for recording an image, a means for optically reading an image formed on a recording material by the recording means and converting it into an electrical signal, and a means for modulating the electrical signal into a signal that can be sent to a communication circuit. It is characterized by the following:

[Effect]

According to the present invention, an image on a film is enlarged and projected by an optical means, and an image is recorded on a recording material by a recording means by exposing the enlarged image. Murakami is able to record film images in high quality by optically reading the image, converting it into an electrical signal, and modulating the electrical signal using a modulation means so that it can be sent to a circuit such as a telephone line. It becomes possible to simultaneously achieve enlarged copying and transmission to a remote location using one device.

〔Example〕

Embodiments of the present invention will be described below in detail and specifically based on the drawings.

FIG. 1 shows an embodiment of the invention. Here, 1 is a microfilm illumination unit consisting of an illumination lamp IA, a condensing lens IB, etc., and F is a microfilm as an information recording medium. 2 is a lens that magnifies the image on the microfilm F, 3, 4 and 5 are fixed reflection mirrors, 6 is a projection screen, and the image magnified by the lens 2 is transmitted to the reflection mirror 3. .4 and 5 onto the projection screen 6;

7 and 8 are scan mirrors provided to print the projected image, and the scan mirror 7 is interposed in the middle of the optical path for obtaining the above-mentioned enlarged projected image, and C and the scan mirror 8 move at a constant speed in the direction of the arrow Then, the image information is slit-exposed onto the photosensitive tram 9Δ of the photosensitive drum unit 9.

10 is a paper feed tray that supplies recording paper as a recording material;
Reference numeral 1 denotes a paper feed roller that feeds recording paper sheets one by one from the paper feed tray IO to the photosensitive drum unit 9.

In the photosensitive drum unit 9, a latent image is formed based on a projected image proportional to the image density of the microfilm F that is continuously exposed onto the photosensitive drum 9 by a known electrostatic photographic process, and is further converted into a toner image. is printed out on the m2 'z1 paper supplied from the paper feed tray 10.

P is a recording paper on which an enlarged image has been recorded in this way, and the recorded recording paper P is discharged to a paper discharge tray 13 by a paper discharge roller 12;
2, an image is read from the recording paper P by a reading scanning section 14, which will be described later.

Then, after the image electrical signal obtained through the reading scanning section 14 is encoded by the encoding section 15, the control section 16 sends J:
The encoded signal is led to the transmission control section 17, modulated there, and then outputted to the outside via a general telephone line 18.

FIG. 2 shows an embodiment in which a reduction optical system and a reduction type image sensor are provided to read the enlarged projection image obtained by the photosensitive tram unit 9 from the recording paper P and output image electrical signals. shows. Here, 21 is a light source that irradiates an enlarged and printed image from the microfilm F onto the recording paper P, 22 is a reduction lens, and 23 is a reduction type image sensor.

On the other hand, the recording paper P sent out from the photosensitive tram unit 9 after recording the enlarged image is held by the conveyance rollers 24 and 25, and the image is fixed at the next fixing roller 2ii. The incoming recording paper P is first detected by the paper sensor 27. Reference numeral 28 denotes a clock driver circuit 1', and when the paper detection signal from the paper sensor 27 is inputted to the control circuit 16', the clock driver circuit 28 detects when the recording paper P reaches the recording position. By the way, it is driven and supplies a clock signal to the reduction type image sensor 23.

At the same time, the image on the recording paper P is illuminated by the light source 21,
By supplying reflected light proportional to the a/darkness of the image to the reduction type image sensor 23 via the reduction lens 22,
Photoelectrically converted. The analog image signal thus obtained is encoded by sequentially passing through an encoding circuit 15°, an amplifier 15°A, an A/D conversion circuit 15°B, an S/11 conversion circuit 15°C, etc. The image signal is guided to a transmission control circuit 17'' via a control circuit 16''.

The transmission control circuit 17° includes a modulation circuit (MOD) 17'A that modulates a signal toward a communication system and a line control unit (NCI) 17'B for network control. The encoded image signal is MO
After being modulated by D17'A, it is transmitted to the outside via a general telephone line 1818 via NC1117'B. 19 is NC
This is a telephone set that is selectively connected to the telephone line 18 by IJ17"B.

With the configuration and procedure described above, it is possible to transmit necessary microfilm frame images through a general telephone circuit, and at the same time, it is possible to print out the enlarged images on recording paper.

Furthermore, in the embodiment described above, an example is described in which an image before fixing on a recording paper is read by a reduction type image sensor, but of course, the image after fixing may be read by a reduction type image sensor).

FIG. 3 shows yet another embodiment of the invention. In this example, a contact type image sensor unit with a more compact optical system and higher sensitivity is provided immediately after the fixing device.

Here, 31 is the contact type image sensor unit, and in this example, the image transferred onto the recording paper P is transferred to the fixing device 26.
The image sensor unit 31 is kept in close contact with the recording paper P, and the fixed image is read. The explanation is the same as that for the embodiment shown in the figure, and the explanation thereof will be omitted. on the other hand,
After fixing, the 3rd paper P is ejected to paper 1 by the ejection roller 12.
-1 Paper is ejected to Noi 13.

Note that in the embodiments described above, the image transferred onto the recording paper is read by an image sensor, but the present invention is not limited thereto. It is also possible to read directly by a contact-type, reduced-type image sensor. Further, it goes without saying that the control procedure and control contents by the control section, as well as the configurations of the encoding section, transmission control section, etc., can be modified in various ways without departing from the gist of the present invention.

〔Effect of the invention〕

As explained above, according to the present invention, there is provided an optical means capable of enlarging and projecting an image on a film, and a recording method for recording an image on a recording material by exposing the enlarged image by the optical means. means for optically reading the image formed on the recording A by the recording means and converting it into an electrical signal; and means for modulating the electrical signal into a signal that can be transmitted to a communication circuit; Not only can you enlarge the image and print it out, but you can also send it out in four copies at the same time using a telephone line, making it easier to operate than with multiple devices as in the past. It is possible to keep the images on the film sent to you, which greatly contributes to information management.

Further, according to the present invention, compared to the conventional method in which the amount of transmitted light proportional to the density of the image on the film is directly inputted to a one-dimensional image sensor etc. via an optical system and read electrically,
Since an enlarged copy image is first obtained using electrostatic recording means and then the enlarged copy image is read, there is no need to consider mechanical vibrations, etc., which are a problem when directly reading a film image, and the shading of the original is emphasized, making it easier to read the enlarged copy image. Not only is it possible to transmit high-quality images with improved ratios, but there is no need to take the same security measures as with conventional film scanners, and the device is smaller, lighter, and lower cost. It is possible to make it happen.

[Brief explanation of the drawing]

FIG. 1 is a basic configuration diagram of a microfilm printer according to the present invention. FIG. 2 is a diagram showing an example of the configuration of an enlarged image reading means and a transmitting means according to the present invention. FIG. 2 is a block diagram showing the configuration of an enlarged image reading means and a transmitting means according to the embodiment. F...Micro film, 1...Lighting unit, 9...Photosensitive drum unit, 98...Photosensitive l-ram, P...Recording paper, lO...Paper feed 1 to ray, 12. ... Paper ejection roller, 14... Reading scanning section, 15... Encoding section, 16... Control section, 17... Transmission control section, 18... Telephone line, 21... Light source, 22... Reduction lens, 23... Reduction type image sensor, 26... Fixing device, 27... Paper sensor, 31... Close contact type image sensor. 4

Claims (1)

[Scope of Claims] An optical means capable of enlarging and projecting an image on a film; a recording means for recording an image on a recording material by exposing the image enlarged by the optical means; and a recording material by the recording means. 1. A film printer comprising means for optically reading an image formed thereon and converting it into an electrical signal, and means for modulating said electrical signal into a signal capable of being sent to a communication circuit.