JPS61295539A - Color printer - Google Patents

Abstract

PURPOSE:To project an image of a negative color film whose focus and image size are exactly the same with an image formed on photographic paper by inserting a screen and moving a deck until a screen surface reaches a print surface equivalent position. CONSTITUTION:When a viewer button provided to a keyboard 7 is operated prior to the operation of a print button, a motor M3 rotates by a specific angle to cut off an optical path by a screen plate 14, thereby forming the horizontal screen surface in front of a paper surface P. Simultaneously, the paper deck 4 moves up by the distance between the paper surface P and screen surface after the position of the paper deck 4 by automatic focus adjustment is stored, and a projection image printed on the paper surface P is therefore projected on the screen surface while having the exactly the same focus and image size.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a color printer equipped with a color printer that allows the image to be printed to be observed in advance.

[Conventional technology]

When printing an image from a negative color film onto photographic paper using a color printer, a camera 7 is built in to check the projected image to be printed onto the photographic paper in advance in order to check the image condition, trimming effect, etc. in advance. There are color printers available that can do this.

This type of pure type includes a transparent A-type type in which a movable mirror is inserted into the projection optical path and the image of a negative color film printed on photographic paper is projected onto a screen placed in front of the printer. A direct-view type is incorporated in which the surface of the photographic paper is covered with a movable screen so that the image of the negative color film projected onto the screen can be directly viewed.

[Problem that the invention seeks to solve]

However, although the transparent type printers are large in size, the images are dark and costly, making them impractical.
On the other hand, the direct view type has a simple structure and a bright image, but because a lamp is placed just before the photographic paper to imprint cut marks and sort marks, the screen is placed close to the surface of the photographic paper. As a result, the focus and image size of the projected image are largely the same as the image actually printed on photographic paper, making it impossible to accurately observe the printed image. .

The present invention solves and improves this point, and as a result, an image of a negative color film, which has exactly the same focus and image size as the image formed on the photographic paper surface, is projected onto a screen located far from the photographic paper surface. The purpose is to provide a color printer that can

[Means for solving problems]

The above object is to provide a color printer that has a deck that incorporates photographic paper for printing and a screen that can be inserted and removed at a certain distance in front of the printing surface. This is achieved by a color printer characterized in that the color printer is moved to a position corresponding to the print surface.

〔Example〕

An embodiment of the present invention is shown in FIGS. 1 to 4.

1st. FIG. 2 shows the configuration of the color printer of the present invention as viewed from the side and the front, respectively.

The main body of the printer consists of a desk 1 fixed to the floor and a support 2 integrated with the desk 1, and guide rails (not shown) provided in the support 2 that support the desk 1 and the paper deck. 4 are guided and supported to be moved vertically in parallel.

The lens deck 3 and paper deck 4 are
Screw shaft 3 directly connected to the pulse motor MIK installed inside
a and to the pulse motor (screw shirt directly connected to 2) 4a
5, which are screwed into the respective parts, and are moved upward or downward by the respective designated amounts by the rotation of motors M1 and M20 according to the number of pulses sent from the control section.

Inside the desk 1, there is built-in a light source section 1a which has functions of dimming a round source, correcting color balance for a negative color film to be printed, and diffusing illumination light, and a light source section 1a having a function of controlling the light of a round source, correcting color balance for a negative color film to be printed, and diffusing illumination light. The light is projected onto I7 from below.

Further, the lens deck 3 includes a negative color film I-
A projection lens L and an exposure shutter 6 having a focal length adapted to the screen size and magnification thereof are housed,
On the other hand, there are 11
- A roll-shaped photographic paper 4b is loaded and forms a flat paper surface P with an exposed surface between it and the take-up shaft 4C.

When printing is performed using the color printer of the present invention,
By operating the desired magnification button on the keyboard 7 provided on the desk 1, the distance 111a from the negative color film F to the projection lens L and the distance #i from the projection lens L to the paper surface P9 are displayed. ), the pulse motor Ml,
M2 is rotated, the lens deck 3 and paper deck 4 are moved, and the child color film F is enlarged on the paper surface P! It is now possible to prepare the east case where ii@ is formed into an image.

Next, when the print button on the keyboard 7 is operated, the light transmitted through the negative from the light source is photometered, and after calculating the exposure time by control, the shutter is opened, the shutter is closed according to the calculated exposure time, and the light is transferred to the paper surface P. Finish printing.

The paper surface P that has finished printing is automatically wound up one by one on the winding shaft 4c, and color printing is proceeded.

Further, inside the vapor deck 4 of the color printer of the present invention, a pair of rotating shafts 11 are mounted below the paper surface P of the photographic paper 4b with the paper surface P sandwiched between them. A wire 13 is wound between a drum lla coaxially integrated with the shaft 12 of a motor M3, and the rotation of the motor M3 rotates the rotating shaft 11.
are configured to be rotated by a predetermined angle in mutually opposite directions.

Further, a screen plate 14 is fixed to each of the rotating shafts 11, but during printing, the screen plate 14 is retracted from the optical path of the projection lens L and hangs downward as shown in the figure.

On the other hand, a part of the front surface of the lens deck 3 is formed with a mirror 22 on its inner surface.
It is opened by a power source that follows the operation of MOMO-2M3, but when printing, it is closed as shown in the figure to prevent outside light from entering the inside of the lens deck 3. There is.

That is, when printing on the photographic paper 4b, when the print button on the keyboard 7 is operated, the screen plate 14 in the paper deck 4 is retracted out of the optical path, as shown in FIGS. 1 and 2. In addition, in the lens deck 3, printing is performed on the paper surface PK by the action described above when the diamond 21 is closed, but in the color printer of the present invention, the same process (keyboard 7 When the pure button provided at
K so as to form a horizontal screen surface 14a on the surface.

Meanwhile, in parallel with this, the position of the paper deck 4 due to automatic focus adjustment is memorized, the above-mentioned program is temporarily canceled, and the Beer program is activated to rotate the pulse monitor M2 of 111J and raise the paper deck 4. let me,
Let b be the distance from the projection lens L to the screen 14a, so that the relationship hf can be satisfied.

That is, the paper deck 4 moves upward by the distance between the paper surface P and the screen surface 14a, and therefore the projected image to be printed on the paper surface PK is
In this case, the images will be projected onto the screen surface 14a with exactly the same focus and image size.

Therefore, next, the light source section 1a is turned on, and the light source 6 is opened, and when the J21 is opened, the screen surface 1 is illuminated from the direction of arrow A through the mirror 22 as shown in FIG.
This means that the projected image on 4a can be visually recognized.

In addition, the screen plate 14 operated by the pure button
The operation of the lid 21 is released and restored by the subsequent operation of the print button, or by pressing the button 7 again, and the paper deck 4 is returned to the previously memorized position by automatic focus adjustment. After that, the printing operation starts.

〔Effect of the invention〕

According to the present invention, the projected image on the screen that is viewed by the viewer is actually printed! ii) It is possible to observe images that are exactly the same size and with the same sharpness as images printed on paper, and this function makes it easier and more accurate to inspect images and check the cropping status, thereby improving quality. A color printer that can produce excellent color prints has now been provided.

[Brief explanation of drawings]

1 and 3 are side configuration diagrams of a color printer of the present invention. FIG. 2 is a front configuration diagram of the same. FIG. 4 is a circuit diagram of automatic focus control in the printer. 3 Lens deck 4 Paper 7' deck 6
...Shutter 7 Keyboard 11 Rotating shaft 11a Drum 12 Shaft 1
3 Wire 14 Screen plate 14a Screen surface 21 Lid 22
Mirror - Ml, M2, M3 Motor L Projection lens P Paper surface Applicant: Roku Konishi Photo Industry Co., Ltd. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] In a color printer having a built-in deck containing photographic paper for printing and a screen that can be inserted and removed at a certain distance in front of the printing surface, the screen is inserted and the deck is placed at a position where the screen surface corresponds to the printing surface. A color printer characterized in that it can be moved up to