JPH0593962A - Instant photographic copying device - Google Patents

Abstract

PURPOSE:To execute battery check by using the time during which an illumination means is turned on and the brightness thereof completely rises and to shorten the time. CONSTITUTION:When a lock switch LKsw is turned on, the signal P1 of output H is supplied from a control means 41 to a voltage stabilization circuit 42, which is allowed to act. Then, power is supplied to a motor 23 and the illumination means 24 through a motor driving circuit 43 and an illumination driving circuit 44 to execute copying. When a start switch Ssw is turned on, the motor 23 is driven and an optical means passes a light shielding position and arrives at an exposing position to execute copying. The control means 41 turns on the illumination means 24 before the copying action, starts the motor 23 to move the optical means, and controls so that the power source voltage is detected by a voltage detection means 45 before the brightness of the illumination means 24 completely rises. In the case that the power source voltage is low, the signal P5 of the output H is supplied from the voltage detection means 45 to the control means 41 so as to control the copying to be impossible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instant photocopier having a battery check function.

[0002]

2. Description of the Related Art As a conventional instant photographic copying apparatus, a window hole is provided on the bottom surface of the body case of the apparatus, and the body case is placed on the original image so that the window hole faces the original image. The optical means (for example, a rod lens array) built in the main body case is moved in parallel along the surface of the original image by the conveying means, and the light from the illumination means (for example, a fluorescent lamp) that moves together with the optical means is always the original screen. Is illuminating. A holder containing an instant film is provided on the main body case, and while the optical means moves to a position where the film can be exposed, a small area of the original image is projected and imaged on the instant film via the optical means. The original image is copied onto the film by the movement of the optical means from one side to the other side, and the film is stopped at a position where the film is shielded from light. When copying, if the light source of the device is a battery, it is customary to check the battery prior to copying. When checking the battery, it is desirable to apply a load current that is almost the same as during operation. Therefore, in the case of a copying machine, the motor for driving the illumination and the scanning member is the main load current, so that it is usual to conduct battery check by energizing both of them.

[0003]

As described above, when the motor for driving the illumination and scanning member is energized to check the battery, a fluorescent lamp is used as the normal illumination, but the fluorescent lamp is used. Takes a long time after the power is turned on until the brightness becomes constant, and it is necessary to wait for that time before driving the scanning member, resulting in wasted time. Further, since the scanning member moves while the illumination having a constant brightness is turned on, there is a problem that the film is unnecessarily exposed when the optical unit moves to the exposure position.

Therefore, an object of the present invention is to carry out a battery check by using the time until the lighting is turned on and the brightness thereof sufficiently rises, thereby shortening the time.

[0005]

In order to achieve the above object, the instant photographic copying apparatus of the present invention forms an image of an illumination means for illuminating a subject and a fine area of the subject on a photosensitive surface of an instant photographic photosensitive material. The optical device includes: an optical unit; a driving unit that scans the optical unit in parallel with a subject; a voltage detecting unit that detects a power supply voltage; and a control unit that controls the illuminating unit, the optical unit, the driving unit, and the voltage detecting unit. ing. The control means controls the lighting means to be turned on and the driving means to be started prior to the copying operation so that the voltage detecting means detects the power supply voltage before the brightness of the illuminating means rises sufficiently.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The schematic construction of an instant photocopier of the present invention will be described with reference to FIGS.

A window 2b through which the original image 1 can be seen is formed in a bottom plate 2a of a main body case 2 which is placed on the original image 1 which is a subject, and the window hole 2b is made of glass, acrylic resin or the like. The transparent plate 3 thus adhered is fixed so that the bottom surfaces thereof are flush with each other. An opening 2d is formed in the upper plate 2c so as to face the window hole 2b of the bottom plate 2a.

The cassette holder 4 for storing the instant film is provided with a window hole 4a on the lower surface thereof.
And the opening 2d face each other, and are fixed to the main body case 2 via the spacer 7. The cassette holder 4 is provided with an upper lid 4b for loading and unloading the film cassette, and the upper lid 4b is rotatably supported around a shaft 5 fixed to the left end portion of the cassette holder 4 main body. A lock arm 4c is attached to the right end of the main body of the cassette holder 4 to lock the upper lid 4b in the closed state.

A film cassette 10 containing a plurality of peeling type instant films (instant photographic photosensitive materials) 9 is attached to a cassette holder 4. The instant film 9 is divided into two forks at the rear end of the pull-out tongue 9a, and a printing film (printing screen) 9 is provided at each end of the fork.
b and a photosensitive film (photosensitive surface) 9c face each other and are fixed to each other, and a developer 9d contained in a bag is attached to one of the two forks. The instant film 9 is folded and stored inside the cassette 10, and the photosensitive film 9c at the lowermost position is a window hole 10 formed in the lower surface of the cassette 10.
When exposed from a and the cassette 10 is set in the holder 4, the photosensitive film 9c faces the window hole 2b in parallel with the bottom plate 2a. By pulling out the pull-out tongue 9a between the pair of rollers 12 and 12 attached to the cassette holder 4, the bag containing the developer 9d is broken and the developer is applied between the printing film 9b and the photosensitive film 9c. , Development and fixing are performed.

Next, as shown in FIGS. 4 and 5, a pair of guide rods 13 are provided on both sides of the main body case 2 in parallel to the bottom surface, and both guide rods 13 are provided on both ends of the carrier 14. Through the through hole and the U-shaped groove. Therefore, the carrier 14 is guided by the guide rod 13 and can move in parallel to the original image 1.

A long groove 14a is formed in the center of the carrier 14, and a rod lens array (optical means) 15 (for example, SELFOC lens under the trade name) is held in the long groove 14a. In the rod lens array 15, the strip-shaped region of the original image 1 which is in contact with the lower surface of the transparent plate 3 is formed on the photosensitive film 9c.
It is designed to form an erect image with the same magnification.

A part of an endless timing belt 19 is attached to one end of the carrier 14 by a mounting member and a mounting screw, and the timing belt 19 is wound around a belt wheel 21 which is axially supported by a bearing 25 described later. The belt wheel 21 is adapted to rotate interlockingly with the rotation of a motor 23 which is a part of drive means fixed to the main body case 2 via a gear train 22. Therefore, by rotating the motor 23 forward and backward, the carrier 14 and the optical means 15 can reciprocate. The optical film 15 is at the exposure position where the instant film 9 can be exposed while the optical means 15 moves opposite the opening 2d, but the film 9 is moved during the interval from the both ends of the opening 2d to the stop position. It is a light blocking position for blocking light. Limit switches LSW1 and Lsw2 for restricting the movement range of the carrier 14 are provided inside the main body case 2. The limit switch LSW1 turns on when the carrier 14 stops at the left end, and the limit switch LSW2.
Turns on when the carrier 14 stops at the right end.

Illuminating means 24 is attached to the carrier 14, and a fluorescent lamp is used as the illuminating means. A mask (not shown) provided with a slit-shaped opening at a position facing the original screen directly below the rod lens array 15 is fixed to the outer periphery of this fluorescent lamp, and the illuminance of a small area of the original image 1 to be copied is fixed. Is set to be large.

Bearings 25 are provided above and below the left and right sides of FIG. 5, and a winding means 26 for the light-shielding film 34 is rotatably supported by the bearings 25. That is, in the winding means 26, the shaft 28 is fixed to one end of the winding pipe 27, and the shaft 29 is rotatably loosely fitted to the other end of the winding pipe 27. A coil spring 31 is provided between the shaft 28 and the shaft 29 inside the take-up pipe 27 so that a light-shielding film 34 is formed.
In order to give a tension to the, it is connected in a fixed state with a certain amount of winding. The shaft 29 is fixed to the belt wheel 21 via an extension rod 30.

Further, the opening 2 is parallel to the carrier 14.
A pair of light-shielding film guides 32, 32 are provided at intervals wider than the opposing sides of d. One end of the light-shielding film 34 is fixed to the winding pipes 27, 27, and the other end is a carrier via an angle 33. It is fixed to 14. The light-shielding film 34 is additionally wound a predetermined number of times around the winding means 26, 26 in consideration of the movement range of the carrier 14.
When the coil spring 31 is attached, the coil spring 31
Rotational force is applied to the left take-up pipe 27 counterclockwise, and rotational force is applied to the right takeup pipe 27 clockwise.
As shown in FIG. 4, the light shielding film 34 acts to shield the photosensitive film 9c from light except for the projection portion of the rod lens array 15. In the carrier 14, the projection portion of the rod lens array 15 is out of the opening 2d and the front surface of the photosensitive film 9c is in a slight movement range to the right or left from the standby position at the left end or the right end in FIG. It is in a light-shielding position where it is shielded by the light-shielding film 34. In the present invention, the optical means 15 is provided within the range of the light shielding position.
While moving, it tries to perform the battery check described later.

FIG. 1 shows a circuit block of the above device. When the lock switch LKsw is on, the control means 41
Since the signal P1 of the output H is supplied from the voltage stabilizing circuit 42 to the voltage stabilizing circuit 42, the voltage stabilizing circuit 42 operates, and the electric power from the power source E is transmitted via the motor driving circuit 43 and the lighting driving circuit 44 to the motor 23 and the lighting means. 24, and can be copied. On the contrary, when the lock switch LKsw is off, the signal P1 of the output L is supplied to the voltage stabilizing circuit 42, so that the copy operation is not performed. The rotation direction of the motor 23 is controlled by the output signals P2 and P3 supplied from the control means 41 to the motor drive circuit 43. For example, when the signal P2 is H and the signal P3 is L, the motor rotates normally and the signal P
When 2 is L and the signal P3 is H, the motor is rotated in the reverse direction, and when both signals P2 and P3 are L, the motor is controlled to stand by or stop. The blinking of the illuminating means 24 is controlled so as to be lit when the control means 41 supplies the signal P4 of the output H to the illuminating drive circuit 44. The voltage detecting means 45 of the power source E is connected between the power source E and the control means 41. A resistor R and a capacitor C constitute a filter, which is for preventing noise to the voltage detecting means 45 and prevents the voltage detecting means 45 from operating in response to a sharp voltage fluctuation in a short time. When the voltage detecting means 45 detects that the voltage of the power supply E is low, the signal P5 of the output H is supplied to the control means 41, and when the power supply voltage is still high, the output L
Is supplied. The display 46 indicates the power supply voltage OK or the copy preparation OK by a green lamp, for example, and the display 47 indicates the power supply voltage NG or a trouble by a red lamp, for example. It is controlled by 41 and lights up or blinks. The start switch Ssw is a switch that starts copying when the lock switch LKsw is on and the display 46 is on, and is a switch that performs only a battery check when the lock switch LKsw is off.

When the lock switch LKsw is turned on and the start switch Ssw is turned on as shown in the output waveform of FIG. 2, a signal P1 of the output H is generated from the control means 41 to bring the stabilizing circuit 42 into the operating state. .. Control means 4 at the same time
Since the signal P4 of the output H is generated from 1, the fluorescent lamp 24 is turned on. The brightness B of the fluorescent lamp increases with time, and becomes almost constant after a certain period of time. During this period, the copy operation is not performed as a waiting time. Further, the consumption current hardly changes even if the brightness of the fluorescent lamp changes. The carrier 14 is now at the left end of FIG. 5, and the limit switch L
When sw1 is on, a short-time forward rotation signal F is generated as a drive signal for the motor 23 almost simultaneously with the lighting of the fluorescent lamp, and the motor 23 rotates normally. The current value I of the power source E is momentarily increased by the rotation of the motor, and when the motor is rotated at a constant speed, it settles at a constant current that is the sum of the currents of the motor and the fluorescent lamp. The voltage Vb of the power source E drops sharply once due to its internal resistance, but immediately becomes a stable voltage value. This stabilization time is t
If the value is 1, the power supply voltage is checked at the subsequent time t2. The power supply voltage Vb at this time is the voltage detection means 45.
Is sufficiently higher than the voltage level Vt at which the IC operates (solid line shown)
Then, the signal P5 of the output L is supplied from the voltage detection means 45 to the control means 41, and the green lamp of the power supply voltage OK is lit on the display 46 by this. At this time, the carrier 14 slightly moves to the right, but has not yet reached the position where the film 9 is exposed in the light blocking position. Therefore, this time, when the short-time reverse rotation signal R is supplied as the drive signal of the motor 23, the current and voltage are stabilized at the time t3 in the same manner as described above, and the power supply voltage is checked again at the next time t4, and subsequently, Return the carrier 14 until the limit switch Lsw1 is turned on. Therefore, even after performing the battery check, one of the limit switches is always on, and the position of the optical means is not unclear.

If the power supply voltage is OK according to the check at the time of this return, the motor 2 is used for the subsequent copy operation.
The normal rotation signal F is supplied as the drive signal of No. 3. Motor 2
The forward rotation of 3 causes the carrier 14 to move to the limit switch Lsw.
While moving to the right from the light-shielding position in which 1 is turned on and the optical means 15 moves the exposure position, the illumination means 24 illuminates a small area of the original image while projecting on the instant film 9 via the optical means 15.・ Form an image. The optical means 15 moves the exposure position from the left to the right to copy the original image on the film 9, reaches the right light-shielding position, and turns on the limit switch Lsw2 to stop. When the start switch Ssw is pressed in this state, the battery check operation is performed within the light-shielding position on the right side this time.

At the time of the first check, the brightness B of the fluorescent lamp is still on the rise as shown in FIG.
At the time of checking at the time of returning again, the brightness B of the fluorescent lamp is sufficiently increased and stable, so that the original image is illuminated with a predetermined brightness at the time of the above-mentioned copying thereafter, and the exposure amount is reduced. There is no shortage.

If the power supply voltage Vb is lower than the voltage level Vt at which the voltage detection means 45 operates as shown by the dotted line at the time of checking the power supply voltage, the voltage detection means 4 is detected.
A signal P5 (shown by a dotted line) of the output H from 5 is supplied to the control means 41, whereby the red lamp of the power supply voltage NG is lit on the display 47. Next, when the motor 23 is rotated in the reverse direction and the power supply voltage is checked again at time t4, if the power supply voltage is NG again, the signal P4 of the output L is output as shown by the dotted line.
Is supplied to the illumination drive circuit 44, the fluorescent lamp 24 is turned off, the brightness B becomes 0 as indicated by the dotted line, the drive signal is not supplied to the motor 23, and the copy operation is disabled.

When the power supply voltage is OK, it may be possible to omit the reversal of the motor and perform the check again, and set to continue the copy operation. The power supply voltage is N
In case of G, you may turn off the fluorescent light immediately. In this case, the return power can be secured accordingly.

When the lock switch LKsw is turned off and the start switch Ssw is turned on, only the power supply voltage at that time can be checked and the copy operation is not started.

Further, in the above embodiment, when the power source voltage NG is set, copying is not possible immediately, but the normal voltage level V
Since t is set to be slightly higher than the minimum operating voltage of the device with a margin, it may be possible to make several to tens of copies even with the power supply voltage NG. Therefore, in order to remedy this, a predetermined operation may be set so that a copy can be made, for example, when the start switch Ssw is pressed again within a certain period of time.

FIG. 3 shows a flow chart showing a schematic operation of the present apparatus, and the operation will be described based on this.

First, when the lock switch LKsw is off,
When the start switch Ssw is turned on (a), the power supply voltage is checked (b), and if the result of the determination (c) is that the power supply voltage is OK, the OK lamp is turned on (d) on the display 46. As described above, since the lock switch LKsw is off (e), the OK lamp is turned off (g) after the timer (f) measures a predetermined time, and the process returns to the first (a).

As a result of the judgment (c) of checking the power supply voltage,
If the power supply voltage is NG, the display 47 turns on the NG lamp (h). As described above, since the lock switch LKsw is off (i), the NG lamp is turned off (g) after the timer (f) measures a predetermined time, and the process returns to the first (a).

Next, when the lock switch LKsw is turned on in advance, if the power supply voltage is OK, the OK lamp blinks (j), the copy operation (k) is performed, the OK lamp is turned off (m), and the first ( Return to a).

When the lock switch LKsw is on,
If the power supply voltage is NG as described above, the NG lamp is turned on (h), and it is judged whether or not the start switch Ssw has been pressed again within a fixed time t0 (n). Since it is not performed, the NG lamp is turned off (g) after the predetermined time is measured by the timer (f), and the process returns to the first (a).

When it is desired to make a copy even with the power supply voltage NG, the start switch Ssw is pressed again within a certain time t0 as a predetermined operation. Determining that it has been pressed (n)
If you do, OK is further in the state of NG lamp lighting (h)
The lamp blinks (j), the copy operation (k) is performed, and
Both the K lamp and the NG lamp are turned off (m), and the process returns to the first (a). That is, the blinking of the OK lamp and the lighting of the NG lamp indicate that the power supply voltage is not sufficient for copying.

As a predetermined operation for performing the copy operation when the power supply voltage is NG, the NG lamp is lit for a certain time and the start switch Ssw is pressed again within this lighting time, or the start switch Ssw is set within a short time. It can be performed by various operations, such as pressing the switch several times or pressing the start switch Ssw for a certain time or longer.

In the above embodiment, the lock switch LKsw
Is a switch such as a slide switch that holds the on or off state, but the lock switch LKsw may be a push switch, and when the lock switch LKsw and the start switch Ssw are pressed at the same time, the copy operation is performed. In addition, various modifications can be made such that only the power supply voltage is checked when only the start switch Ssw is pressed.

In the above embodiment, the voltage level Vt for checking the power supply voltage is set at one location, but as another embodiment, for example, two voltage levels Vt1, Vt2 are preset as the check level. If the voltage level is Vt1 or higher, the power supply voltage OK lamp is turned on, and if the voltage drops slightly and the voltage level Vt1 or lower is detected, the power supply voltage N
The G lamp is turned on, and the power supply voltage NG lamp is made to blink when the voltage level Vt2 or less is detected by further lowering so that the copying operation can be performed by the above-described predetermined operation while the power supply voltage NG lamp is turned on. You can When the power supply voltage NG lamp starts to blink, the copying operation is of course impossible. The display method is not limited to the above example,
Various displays (including non-lighting) are possible.

As yet another embodiment, when the power supply voltage NG is detected, the control means 41 sets the number of sheets that can be copied thereafter, displays the number on an appropriate display, and makes a copy by a predetermined operation. Count down to
The copy operation may be disabled when the count reaches 0.

[0034]

According to the present invention, the lighting means is turned on and the driving means is started prior to the copying operation, and the power supply voltage is detected before the brightness of the lighting means is sufficiently increased. It becomes unnecessary and can shorten the time. Even if the brightness is insufficient, a current almost equal to the load current at the time of copying flows, a correct battery check is possible, and the film is not exposed.

[Brief description of drawings]

FIG. 1 is a circuit block diagram showing an embodiment of the present invention.

FIG. 2 is an output waveform diagram.

FIG. 3 is a flowchart illustrating an operation.

FIG. 4 is a sectional view showing a schematic configuration of an embodiment of the present invention.

FIG. 5 is a partially cutaway plan view of the same.

[Explanation of symbols]

 1 Subject 9 Instant Photosensitive Material 9c Photosensitive Surface 15 Optical Means 23 Driving Means 24 Illuminating Means 41 Control Means 45 Voltage Detecting Means

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Susumu Hasegawa 934-13 Shikato, Yotsukaido-shi, Chiba Stock company Seikosha Chiba Works (72) Inventor Masanori Fujita 4-1-1 Taihei, Sumida-ku, Tokyo In-house Seikosha (72) Inventor Tadahiko Yamaoka 4-1-1 Taihei, Sumida-ku, Tokyo Incorporated Seiko-sha (72) Inventor Hiroshi Sudo 4-1-1 Taihei, Sumida-ku, Tokyo Inside the Seiko building

Claims (1)

[Claims] 1. An illuminating means for illuminating a subject, an optical means for forming a narrow area of the subject on a photosensitive surface of an instant photographic photosensitive material, a driving means for scanning the optical means in parallel with the subject, and a power supply voltage. And a control means for controlling the illuminating means, the optical means, the driving means and the voltage detecting means, the control means turning on the illuminating means and driving the driving means before the copying operation. An instant photocopier, wherein the means is started and the voltage detecting means is controlled to detect the power supply voltage before the brightness of the illuminating means is sufficiently increased.