JPS60225128A - Reader printer - Google Patents

Abstract

PURPOSE:To increase oscillations originating from scanning operation through a projection system and to eliminate its influence to be exerted upon an exposure image, and to obtain high resolving power by performing scanning exposure for copying a projection film image by the scanning operation of a printer side. CONSTITUTION:A print button is operated to turn on the motor 19 in a printer 7 and the clutch 22 of a reverse driven system 24. A photosensitive body 111 rotates and a pinion gear 17 engages a rack 18 to move the printer 7 to right. A pinion gear 39 and a pulley 37 are rotated through a rack 35 to take up a wire 36, and mirrors 8 and 10 move up to a printer optical path formation position. A lamp 2 turns on and the clutch 23 of a normal driven system 25 is turned on to move the printer 7 to left through the rotation of the pinion gear 17. The projection film image is scanned and the photosensitive body 111 is exposed thereto through a slit 49; and copy paper 13 is fed synchronously with the movement of the film image to an image forming part 12 to transfer the image.

Description

Detailed Description of the Invention Technical Field The present invention relates to a reader printer which is mainly used to enlarge and project an image on a microfilm onto a screen or printer for reading or printing, and in particular to a reader printer which prints by scanning exposure. Regarding the model reader printer.

BACKGROUND ART Conventionally, this type of reader printer scans and exposes a film image by scanning a projection system mirror or by scanning a film.

Problems to be Solved by the Invention In the conventional scanning method described above, the vibrations of the mirror and film during the scanning operation are magnified and projected onto the photoreceptor, so even if vibration countermeasures are taken, the problem cannot be overcome and the resolution is limited. There is.

Therefore, the present applicant has previously proposed a reader printer that can obtain high resolution by causing the printer, which is the side of the photoreceptor that receives exposure, to perform a scanning operation to prevent vibrations from expanding and affecting the exposed image.

This invention further develops the previous proposal, and allows the scanning and return movement of the printer to be performed without separately providing a drive source for the photoconductor or synchronously controlling the separately driven photoconductor and the printer. It is an object of the present invention to provide a reader printer that can more advantageously solve the above-mentioned conventional problems.

Means for Solving Problems In order to achieve the above-mentioned purpose, the present invention has a reader optical path and a printer optical path for projecting a film image onto a screen and a printer, and the printer is a reader printer that copies the projected film image by scanning exposure. A printer-side rotating member that is held movably in the projection film image scanning direction and rotates forward and reverse in conjunction with one rotation of the photoreceptor of the printer; A scan operating machine groove is provided which comprises an immovable fixed transmission member for scanning and reciprocating the movement of the M#.

The switching operation of the optical path switching mirror that switches between the reader optical path and the printer optical path is turned on in conjunction with the movement of the printer, as the case may be.

The rotating member on the printer side has, for example, a forward rotation driven system and a reverse rotation driven system with respect to the photoreceptor, and can be rotated forward or reverse by connecting/disconnecting or switching a clutch provided in each driven system or switching and connecting them. If so, forward and reverse rotation of the rotating BB material by one-sided rotation of the photoreceptor can be achieved with a simple structure and control.

The rotating member and the fixed transmission member on the printer side are generally of an integral transmission type or a friction transmission type. For engagement transmission type, a combination of gear and rack, for friction transmission type,
There are combinations of pulleys and belts or ropes, and combinations of gears and screw shafts that are screwed together as similar to the interlocking transmission type, but the transmission type and specific structure do not matter.

Operation: The reader optical path forming state is switched to the printer optical path forming state by operating the print button, etc., and the film image is projected onto the printer. In a printer, a photoreceptor is rotated in a fixed direction for scanning exposure of a projection film image. At this time, the printer-side rotating member is driven to rotate in the forward direction, and the movable printer is moved by the reaction of the transmission to the fixed transmission member. This allows the printer to
A scanning operation is performed in synchronization with the photoreceptor. Upon completion of the scanning operation, the printer-side rotating member is switched to reverse rotation, and the printer is moved in the opposite direction to the scanning operation due to the reaction of the transmission to the fixed transmission member. This will restore the printer.

Embodiment To explain the embodiment shown in FIGS. 1 to 12, FIG. 1 shows the main structure of the main body A, and FIG. 2 shows the front side of the main body A. The clamped microfilm is illuminated from below by a lamp 2 through a condensing lens 3. The image of the illuminated film is projected onto a screen 6 at the top of the front by a projection optical system 5 consisting of a projection lens 4 and several reflection mirrors.
The image is projected by switching to the printer 7 at the lower rear.

The projection optical system 5 includes an eleventh second reader mirror 819 that directs the projection optical path from the projection lens 4 toward the screen 6, and a printer first mirror 819 that directs the projection optical path from the projection lens 4 toward the printer 7. a reader optical path including a second mirror 10.11, in which the second mirror 9 for the reader and the first mirror 10 for the printer are switched between the solid line position and the virtual line position in FIG. 1 to direct the projection optical path toward the screen 6; It is an optical path switching mirror that switches and forms a printer optical path directed toward the printer 7.

The printer 7 includes an image forming section 12 including a photoreceptor 111 that receives scan exposure while rotating, and a paper feed section that feeds a stack of copy paper 13 one by one to the image forming section 12 and transfers the image thereon. 14. Completely equipped with a fixing section 15 that fixes the transferred image on the copy paper 13 after passing through the image forming section, and scanning light onto the photoreceptor 111 by means of two Accuride rails 16 installed horizontally on the bottom of the main body A. The projection film image is held movable in the scanning direction.

A pinion gear 17 that rotates forward and reverse in conjunction with one rotation of the photoreceptor 111 is provided at the rear upper part of the inside of the printer 7, with a part of the pinion gear 17 protruding from the top surface of the printer 7. It is engaged with a rack 18 fixedly mounted on the moving part of the printer 7. The photoreceptor 111 is rotationally driven in one direction by a motor 19 in the printer 7 via a drive gear 20 and a driven gear 21 (see FIGS. 1 and 7).
figure).

On the other hand, the pinion gear 17 is shown in FIGS. 1 and 7.

As shown in FIG. 8, the electromagnetic clutches 22 and 23 have a reverse rotation driven system 24 and a forward rotation driven system 25 for the photoreceptor 111 interposed therebetween. Depending on which of the electromagnetic clutches 22 and 23 is turned on, the It is rotated in reverse or forward direction in conjunction with the one-way rotation for the body.

The reverse rotation driven system 24 includes an interlocking gear 26 that meshes with the drive gear 20.
and an intermediate gear 27 connected to this gear 26 via a clutch 22, and the forward rotation driven system 25 is connected to the interlocking gear 2.
6 and an interlocking gear 28 having the same number of teeth as the gear 26;
It consists of an intermediate gear 29 connected to this gear 28 via a clutch 23 and having fewer teeth than the intermediate gear 27,
The pinion gear 17 is simultaneously meshed with both intermediate gears 27, 29 of the driven systems 24, 25 (FIGS. 7 and 8).

Next to the pinion gear 17 installation part of the printer 7, microswitches 30.31 are arranged in line in the axial direction of the gear 17, and each actuator is exposed to the top surface of the printer 7, and each microswitch f30.31 is connected to the printer 7. Operating protrusions 32, 33, and 34 are provided on the sides of the rank 18 to turn them on and off depending on the movement position of the rank 7. Note that the protrusion 32 is provided for operating the microswitch 30, the protrusion 33 is provided for operating the microswitch 31, and the protrusion 34 is provided for operating both microswitches 30131 (FIGS. 1, 9, and 10). .

A rack 35 along the moving direction of the printer 7 is provided on the front upper surface of the printer 7 opposite to the pinion gear 17 installation part, and a second reader mirror 9 as the optical path switching mirror and a first printer mirror are provided on the main body A side. A wire 36t connected to the mirror IO is provided with a pulley 37 that is wound or fed out to perform the optical path switching operation, and a pinion gear 39 connected to the pulley 37 via an electromagnetic clutch 38 is engaged with the rack 35. (Fig. 1.

Figures 11 and 12).

The mirrors 9 and 10 are held by a mirror holder 40 and are pivoted 41 near the upper end of the mirror 9. The feeding end of the wire 36 is tied to the upper end of the mirror 9, and when wound around the pulley 37, the wire 36 overcomes the weight of the mirrors 9 and 10 to form a downward moving leader optical path as shown by the solid line in FIGS. 1 and 11. When the pulley 37 becomes free by turning off the clutch 38, the mirror lifting force is lost, so the mirrors 9 and 10 are returned to the downward movement by their own weight and follow this movement. It is fed out from the pulley 37 while doing so.

A stopper 42 for regulating the stop position is provided at the downward return position of the mirrors 9 and 10, and a damper that comes into contact with this stopper 42 from a little before the return mirror 9 and 10 comes into contact to provide a buffering effect. A locking lever 44 that engages with the upwardly moved mirrors 9, 10 and holds the mirrors 9, 10 in that position is located at the upwardly moving printer optical path forming position of the o-mirrors 9, 10 where the o-mirrors 43 are attached. It is provided.

The lever 44 is biased by a spring 45 to a stopper 46.
The mirror is elastically held at the mirror locking position where it abuts, and a lock/id 47 is connected thereto.

A microswitch 48 is provided which is pressed and operated to turn off the clutch 38 when the Mi79+10 moves upward slightly beyond the locking position of the lever 44. 49
is an exposure slit on the top surface of the printer 7.

The operation will be described in detail below. In the reader state shown in FIG. 1, the printer 7 is in the central position shown in FIG. 3. Print button 50 provided next to screen 6 on the front of main unit A
When is pressed, the lamp 2 is turned off, the motor 19 in the printer 7 is activated, and the reverse rotation driven system 24 is activated.
Clutch 22 is turned on. This causes the motor 19 to move as shown in FIG.

The photoreceptor 111 is rotated in the direction of arrow a in FIG.
4 and 7, the pinion gear 17 is rotated in a fixed direction shown by an arrow in FIGS.
It is interlocked and rotated in the direction of arrow C (opposite direction to the photoreceptor 111) in FIGS. This pinion gear 17 meshes with the rack 18 while rotating in the direction of arrow C, so that the printer 7
is moved from the position shown in FIG. 3 to the rightward movement position shown in FIG. The pinion gear 39 is rotated via the rack 35 in conjunction with the movement of the printer 7, and the output IJ-
37 is rotated in the direction of the arrow in FIGS. 11 and 12 to wind up the wire 36, so that the mirror 9°lO is moved upward to the printer optical path forming position. Mirrors 9 and 10 are levers 44
When the housing is moved up a little beyond the locking position, the micro switch 48 is pressed and the clutch 38 is turned off and the boot 9-37 is released.

As a result, the mirrors 9 and 10 are released from the upward movement force and try to move downward by their own weight, but as the mirrors 9 and 10 move past the engagement position, they engage with the lever 44 which has returned, forming the printer optical path. It is locked in position and becomes a printer state.

Simultaneously with the operation of the print button 50, the paper feed section 14 in the printer 7 is also activated to initially feed the top sheet of the stacked copy sheets 13 to a position where it is detected by the sensor 51 and then waits therefor.

When the printer 7 reaches the position shown in FIG. 4, the microswitch 30 is pressed and operated by the protrusion 32 shown in FIG. The clutch 22 is turned off by the operation signal of the switch 30 at this time, and the printer 7 is stopped. After a predetermined period of time required for the photographing caused by this stop to be absorbed, the lamp 2 is turned on and the clutch 23 of the normal rotation driven system 25 is turned on.

By lighting the lamp 2, a film image is projected onto the printer 7 as shown by the imaginary line in FIG.

When the clutch 230 is turned on, the pinion gear 17 rotates the photoreceptor 111 in a certain direction by rotating the forward rotation driven system 2.
5 in the opposite direction to the arrow 0 (photoreceptor 111
(in the same direction as ) and moves the printer 7 to the position shown in FIG. 5 due to its engagement with the rank 18.

By moving the printer 7 from the position shown in FIG. 4 to the position shown in FIG. 5, the projected film image onto the printer 7 is scanned and exposed through the slit 49 onto the photoreceptor 111 rotating on one side. During the scan movement of the printer 7, the protrusion 33 in FIG.
f. The waiting copy paper 1 is removed by a push operation.
3 is fed to the image forming section 12 in synchronization with the movement of the film image formed on the photoreceptor 111, and the images are successively transferred.

When the printer 7 reaches the position shown in FIG. 5, the scanning exposure of the projection film image is completed, and the protrusion 34 shown in FIG. While the lamp 2 is stopped and the lamp 2 is turned off, the solenoid 47 is temporarily turned on and the lever 44 is pulled against the spring 45, thereby releasing the lever 44 from locking the mirrors 9 and 1o to the printer optical path forming position. The mirrors 9 and 1o return downward while letting out the wire 36, and enter the leader state.

In the printer 7, the image transfer onto the copy paper 13 is continued until completion, and the copy paper 13 after the transfer is fixed.
After that, the paper is ejected to the outside of the printer 7 and the main body A. When the paper ejection sensor 52 inside the printer 7 detects the rear end of the copy paper machine 3 from which the paper is ejected (FIG. 6), the clutch 22 of the reverse driven thread 24 is turned on for a certain period of time, and the printer 7
is moved to the initial position 1t in FIG. 3, and when the return is completed, the lamp 2 is lit again, the motor 19 is stopped, and the reader state is returned.

Note that until the motor 19 stops, the photoconductor 111, the fixing section 15, and the paper ejection section continue to operate, but the developing device, charger, etc. provided around the photoconductor 111 of the image forming section 12 are operated only for the necessary time. be done.

In the embodiment shown in FIG. 13, a pulley 61 is used as a rotary member that is rotated forward and backward in conjunction with one rotation of the photoreceptor 111 on the printer 7 side, and a stretchable pulley 61 is stretched along the moving direction of the printer 7. A small rope 62 is wound in the middle, and the printer 7 is caused to scan and return by the reaction of frictional transmission to the lobe 62 when the pulley 61 is rotated forward or backward.

Effects According to the present invention, since scan exposure for copying a projection film image is achieved by a scan operation on the printer side that receives the projection of the film image, vibrations caused by the scan operation are magnified in the projection system and the exposure is reduced. High resolution can be obtained without affecting the image.

In particular, since the scanning and return movements of the printer are performed in conjunction with one rotation of the photoreceptor in the printer, a special motor for scanning operation is not required.
Since synchronization with the printer scan operation of one-sided rotation of the photoreceptor for scan exposure is achieved naturally and no special synchronization control is required, the structure can be simplified and provided at low cost. Also, breakdowns and other troubles are reduced.

[Brief explanation of drawings]

Fig. 1 is an internal structure diagram of one embodiment, Fig. 2 is an external front view, Figs. 3 to 6 are partial internal structure diagrams showing the printing operation status of a part of the printer, and Fig. 7 is a photoreceptor driven by a motor. A front view of the drive system and its forward/reverse driven system, Figure 8 is a plan view of the forward/reverse driven system, Figure 9 is a partial perspective view of the back of the printer, Figure 10 is a front view of the top of the printer, and Figure 11. 12 is a side view showing the switching operation state of the optical path switching mirror, FIG. 12 is a front view of the switching operation section of the optical path switching mirror in FIG. 11, and FIG.
The figure is a rear view of a printer showing another embodiment. A... Main body, 5... Projection optical system, 6... Screen, 7... Printer, 9+10... Mirror (optical path switching mirror), 111... Photoreceptor, 13... Copy paper , 19... Motor, 22123... 11i magnetic clutch, 24... Reverse rotation driven system, 25... Forward rotation driven system, 3
5... Rack, 36 wire, 37... Pulley, 38... Electromagnetic clutch, 40... Mirror holder, 41... Pivotal support, 50-mount print button Applicant Minolta Camera Co., Ltd.\I- -) Continued from page 1 0 Inventor: Hajime Otsuki Azuchi-cho Camera Co., Ltd., Higashi-ku, Osaka City 0 Inventor: Yasuhide Ogura Within Azuchi-cho Camera Co., Ltd., Higashi-ku, Osaka City

Claims (2)

[Claims] (1) It has a reader optical path and a printer optical path that project the film image onto a screen and printer, and the printer copies the projected film image by scanning exposure; in a no-dar printer, the printer is held movably in the direction of scanning the projected film image. , a rotating member on the printer side that rotates forward and reverse in conjunction with one rotation of the photoreceptor of the printer, and an immovable fixed transmission member that receives transmission from the rotating member and scans and moves the printer back through the rotating member. A reader printer characterized by being equipped with a scanning operation mechanism consisting of (2) The reader printer according to claim 1, wherein the switching operation of the optical path switching mirror that switches between the reader optical path and the printer optical path is performed in conjunction with the movement of the printer.