JPH03135277A - Micro-film printer - Google Patents

Abstract

PURPOSE:To make work to put the directions of printing forms in order after printing unnecessary by switching a channel by detecting a channel switching position, and printing a picture by inverting it upside down by a picture processing means in the case to read the film of a duo-mode. CONSTITUTION:When a channel switching position detecting means 124 detects the end of the channel, a CPU 102 sends a signal to motors 96, 76 and the picture processing means 122. On this signal, a channel switching means E switches the channel, and an image rotation prism 26 rotates so as to invert a projected picture upside down. As the result, the channel is switched automatically, and an erected picture appears always on a screen 14. Besides, the picture processing means 122 inverts the picture upside down on the basis of this signal (c) (inverting signal) of the switching position detecting means 124, and outputs a biary picture signal (b) to a printer 120. Thus, the work to put the directions of the pictures in order after the printing becomes unnecessary.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a microfilm league in which images are read out using a duo mode microfilm in which image information is recorded in two upper and lower channels. .

(Technical Background of the Invention) As a method of manipulating roll film, one frame at a time is photographed one side at a time in the length direction of the film in half the width of the film.
There is a duo shooting method (reciprocating shooting method) in which when one channel finishes shooting, the film is loaded in the opposite direction and the opposite channel is shot sequentially. Conventional microfilm reader printers that can read microfilm (also known as mode microfilm) automatically stop advancing the film when the channel to be searched ends, leaving the operator to switch channels and reorient the image. It was made.

Others were made to read only one channel, with the operator loading the film in reverse each time the channel was changed.

As described above, in Duo mode microfilm, the orientation of the image is reversed when the channels are different, so if the read image is printed on paper as it is, the printed image will be upside down every time the channel is switched. For this reason, it was necessary to align the orientation of the image after printing, which was troublesome. This problem has become particularly important in reader printers in which codes for a large number of images to be printed are entered in advance from a keyboard and stored, and these images are automatically retrieved and printed continuously. It is conceivable to manually switch channels and rotate the image at the end of the channel, or to reload the film in reverse, but in this case, the operation is cumbersome and inefficient, especially when the image code is memorized and the image is rotated continuously. There is a problem in that it cannot be applied to things that are printed.

(Objective of the Invention) The present invention has been developed in view of the above circumstances, and when reading and printing Duo mode microfilm, there is no need to rotate the image or load the film in reverse every time the channel is changed. It is possible to efficiently print images that are all automatically aligned in the same direction without having to perform any correction operations, especially when the code of the image to be printed is memorized in advance and the device is used for continuous printing later. To provide a microfilm printer that does not require the work of aligning the orientation of images after printing.

(Structure of the Invention) According to the present invention, the object is to provide a microfilm printer capable of reading microfilm in which image information is recorded using the duo photography method, and to provide an image sensor for reading an image and a binarization of the output of the image sensor. an image processing means for processing, a printer for printing an image based on the image-processed signal, and a switching position detection means for detecting a channel switching position of the film, and the image processing means prints an image at the switching position. This is achieved by using microfilm blink, which is characterized by printing upside down.

Here, the channel switching position detecting means can be constituted by an arithmetic device that automatically determines the end of the channel by using the output of the optical sensor and by using the relationship between this output and the film feed amount. . Further, when channel switching is performed by inputting a channel switching signal from a keyboard or the like at an arbitrary film running position, the keyboard itself serves as switching position detection means.

Channel switching means include those that mechanically move the film itself in the width direction of the film, those that use a prism that moves the optical axis in the film width direction, and those that use an image sensor to read the image spanning two channels and convert one of these electrical signals. Various mechanisms are possible, such as extracting only the image in the range corresponding to one of the channels using a section.

(Embodiment) Fig. 1 is an overall schematic diagram of an embodiment of the present invention, Fig. 2 is a perspective view of a part thereof, Fig. 3 is a system diagram of its control signals, and Fig. 4 shows only the main part thereof. FIG. 5 is a conceptual diagram showing the film.

The microfilm used in this example is the roll microfilm 2 shown in FIG. recorded in Here, the top channel piece 4 and the bottom channel piece 4 are opposite in direction. On both edges of the film 2 there are search document marks or blips 6 corresponding to each frame 4.
is imprinted. These blips 6 identify a plurality of types by changing their positions and widths, and for example, identify file numbers, block numbers, and page numbers. This film 2 is stored in a cartridge 8 (FIGS. 1 to 3) and loaded into the league printer device 10.

The league printer device 10 is configured as shown in FIG. That is, the front of the case 12 (right side in Figure 1)
A transmissive screen 14 is disposed at , on which an enlarged image of the frame 4 of the cartridge 8 is projected. The cartridge 8 is loaded into a loading section 16 located below the screen 14.

The leading end of the film 2 wound on the supply reel 18 in the cartridge 8 is pulled out by a loading mechanism, and the zero reel 1 is wound on the take-up reel 20.
A light source 22 is arranged below between 8 and 20. The light emitted from this light source 22 passes through the film 2 and passes through the projection lens 2.
4. Image rotation prism 26, multiple reflection mirrors 28.30
．． The light is guided to the screen 14 through an optical system consisting of 32 and the like. As a result, the image information recorded on one frame 4 of the film 2 is enlarged and projected.

A mirror 34 that can be moved back and forth on the optical axis is provided between the reflecting mirrors 28 and 30, and during printing, image projection light is directed to a printer device 36 located below by this mirror 34.
lead to. Note that this printer device 36 is, for example, of a PPC type, and forms an electrostatic latent image of an image by exposing a photosensitive drum 36a (see FIG. 3), and makes a visible image by adhering toner to this latent image. , which is transferred onto printing paper and fixed. Further, this printer device 36 is
A masking device 38 is provided to block the incidence of projection light, and particularly in the case of a negative film, it blocks the incident light that would create a black border in the image.

The film advance mechanism is shown in FIG.

This film feeding mechanism is movable in the film width direction by channel switching means E, which will be described later, so that either the upper or lower channel of the film can be selectively read. When the cartridge 8 is loaded into the loading section 16, the microswitch 40 detects this, and the CPU 102 (described later) activates the loading mechanism. That is, a roller (not shown) is inserted into the reel 1 through an opening 8a provided at the bottom of the cartridge 8.
8, the leading end of the film 2 is drawn out, and wound onto the take-up reel 20 via guide rollers 42, 44. A zero take-up reel 2 is provided near the guide rollers 42, 44 with sensors 46, 48 for detecting the presence or absence of the film 2.
0, an endless belt 50 is pressed and comes into close contact with the film 2 being wound up here. This endless belt 50 is wound around guide rollers 52, 54, 56 and a drive roller 58. The drive roller 58 is driven by a motor 60,
The belt 50 is run in the direction of arrow A, that is, in the winding direction. As a result, the film 2 is wound onto the reel 20 while being sandwiched between the belt 50 and the reel 20. Note that the rotation shaft of the motor 62 is automatically connected to the supply reel 18 when the cartridge 8 is loaded. The film 2 is rewound by driving the reel 18 in the direction of arrow B by the motor 62. At this time as well, the belt 50 runs together with the film 2.

A tension roller 64 is pressed against the endless belt 50 with a predetermined pressure to apply appropriate tension to the belt 50.

The rotation speed of the tension roller 64 is detected by an encoder 66. Based on the output pulse signal of the encoder 66, the running amount of the endless belt 50, that is, the running amount of the film 2 is determined by the CPU 102, which will be described later.

The grip 6 provided on the film 2 has two sets of light emitting elements 68 (68a, 68b) and light receiving elements 70 (70a, 70b). These are moved by the channel switching means E together with the film transport mechanism. Here, out of the light emitted from the light emitting element 68, only the light passing through the blip 6 is selected by the slit 72 and guided to the light receiving element 70. The outputs of these light-receiving elements 70 are input to the CPU 102, and by integrating the types of blips 6 and the number of blips 6 that have passed, the frames 4 that have passed under the light-receiving elements 70 are identified. Since the distance between the detected position of the blip 6 and the optical axis C is constant β, the channel switching means E monitors which channel is being read, and the encoder 66
By monitoring the amount of film travel detected in , it is possible to identify the frame 4 being projected. That is, when the blip 6 of the target frame 4 is detected, if the film 2 is further sent from there by a distance β to the take-up reel 20 side or the supply reel 18 side in accordance with the channel of the frame 4,
This target frame 4 will fall within the optical axis C.

The image information of the target frame 4 that has entered the optical axis C in this manner is projected onto the screen 14. Here, the magnification of the projection lens 24 is variable by a motor 74, and the rotation angle of the image rotating prism 26 is variable by the motor 76 (FIG. 3).

Behind the screen 14 is a C as an image sensor.
The CD line sensor 78 is held by a movable plate 80, and the movable plate 80 is movable left and right on guide rails 82 and 84. As shown in FIG. 2, both ends of a wire 90 wound around a pair of pulleys 86 and 88 are fixed to the movable plate 80. The pulley 88 is rotated by a motor 92, and a wire 90 running together with the pulley 88 is rotated by the movable plate 8.
Move 0 left or right.

Here, the channel switching means E will be explained based on FIG. 4.

In this embodiment, the film feeding mechanism and the light emitting element 68 and light receiving element 70 for detecting the prep 6 are held on a common substrate 94, and this substrate 94 is located at an eccentric position of a disk 98 rotated by a motor 96. Links are connected.

Therefore, each time the motor 96 rotates the disk 98 by half a rotation from the illustrated position, the substrate 94 moves in the width direction of the film 2 by a distance of 172 times the width of the film 2. As a result, the optical axis C
selectively transmits and reads either the upper or lower channel of the film 2.

Next, the control device 100 will be explained based on FIG. The control device lOO includes a digital arithmetic unit C (CPU) 102, and an input/output interface (I/F) 104.106.
, a ROM 10B for storing operating programs, etc., and a RAM 110 for storing image signals read by the line sensor 78, various data, etc. Various signals are input to this CPU 102 via an input I/F 6, for example, an image signal a read by a line sensor 78, output signals from a microswitch 40, a sensor 46, 48, a light receiving element 70, an encoder 66, etc. is input. Also keyboard 11
From 2, the identification code number of the target image or the identification codes of a large number of images to be printed, etc. are input.

Reference numeral 114 is a manual speed setting device for inputting the feeding direction and feeding speed of the film 2.

The operating knob 116 of the speed setting device 114 has a tendency to return to the neutral position, and if it is rotated from the neutral position to either the left or right, the amount of rotation is input to the CPU 102. C
The PU 102 controls the feeding direction and speed of the film 2 in accordance with the direction and amount of rotation of the operation knob 116 from the neutral position.

That is, when the operating knob 116 is at the neutral position, the film 2 is stopped; when turned to the left, the motor 60 is activated and the film 2 is moved to the left in FIG. 3; when turned to the right, the motor 62 is activated and the film 2 is moved. Drive to the right.

Reference numeral 118 is an odometer that displays the distance traveled from the leading end of the film. That is, the traveling distance of the endless belt 50 traveling together with the film 2 is determined by adding and subtracting the output pulse signal of the encoder 66 using the CPt 1102, and the calculation result is transmitted to the odometer 11.
8.

Reference numeral 120 denotes a digital printer, which stores codes for a large number of images in this embodiment and is used to print images read by the line sensor 78 when printing these codes continuously and automatically. Also CPU102
Another league printer device may be connected to the Blink 120 to output images sent from the other device.

The CPU 102 also includes an image processing means 122 shown in FIG.
The 0 image processing means 112, which operates the channel switching position detection means 124, binarizes the image signal a of the line sensor 78 and stores it in RAMll0 or another independent frame memory, and sends the binary image signal to the printer 120. output.

The channel switching position detecting means 124 detects the grip 6 based on the output of the light receiving element 70, and determines the end of the channel from the read waveform of the grip 6 itself. Alternatively, it may be determined that the channel has ended because the film feed amount determined from the output of the encoder 66 exceeds a certain speed amount after reading the prep 6.

When the channel switching position detecting means 124 detects the end of the channel, the CPU 102 sends a signal to the motor 96, '74 and the image processing means 122. In response to this signal, the channel switching means E switches the channel, and the image rotating prism 26 rotates to rotate the projected image upside down. As a result, channel switching is automatically performed, and the screen 14
An upright image is always displayed.

Further, the image processing means 122 is connected to the switching position detection means 124.
The image is turned upside down based on the signal C (reversal signal) and a binary image signal S is output to the printer 120. That is, the image signals stored in the frame memory are read out in the reverse order of reading and sent to the printer 120. As a result, the printer 120 prints images aligned in the same orientation despite the channel switching.

In the above embodiment, based on the detection of the channel switching position,
In addition to inverting the binary image signal sent to the printer 120, the image rotating prism 26 is also rotated to invert the image on the screen 14 vertically. However, in the present invention, when only printing is performed, it is not necessary to rotate the prism 26, and the prism 26 may be omitted.

Furthermore, in this embodiment, the CPU 102 detects the channel switching position using the grip 6;
This channel switching signal input means serves as channel switching position detection means.

Furthermore, in this embodiment, the printer device f! ! 3 with 120
6 is also provided, but the present invention only needs to include the printer 120. Note that the image processing means 122 is the CPU 102
The processing may be performed by another digital processing device independent from the processing unit.

(Effects of the Invention) As described above, when reading duo mode film, the present invention detects the channel switching position and switches the channel, and also rotates the image upside down using the image processing means and prints it. 1. Because it is a thing. You can print images aligned in the same direction without having to manually switch channels or rotate images, or reload the film in reverse, and you can change the paper orientation after printing. There is no need for alignment work. In particular, you can store codes for a large number of images in advance and process them later.

This is convenient if you want to automatically search for these and print them automatically.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic diagram of an embodiment of the present invention, Fig. 2 is a perspective view of a part thereof, Fig. 3 is a system diagram of its control signals, and Fig. 4 is a conceptual diagram showing only the main parts. FIG. 5 is a diagram showing the film. 2...Micro film, lO...Reader printer device, 78...Line sensor as an image sensor, 12
0...Printer, 122...Image processing means, 124...Switching position detection means, E...Channel switching means.

Claims (1)

[Scope of Claim] A microfilm printer capable of reading microfilm in which image information is recorded using the duo photography method, comprising: an image sensor for reading an image; an image processing means for binarizing the output of the image sensor; A printer that prints an image based on an image-processed signal, and switching position detection means for detecting a channel switching position of the film, and the image processing means prints the image upside down at the switching position. A microfilm printer featuring: