JPH03253825A - Image recording device for microfilm - Google Patents

Abstract

PURPOSE:To reduce film jamming by putting a film clamping means in operation and clamping the tip of a film at the start of automatic loading. CONSTITUTION:The tip of the film F clamped between rollers 80 and 81 is sent to between members 84 and 85 of the film clamping means 82. When the tip of the film F reaches the part between the members 84 and 85, a sending-out motor is turned off temporarily and a cam motor is turned on at the same time. The cam motor is turned on while a cam 88 makes one turn and a pressure member 84 presses a receiving member 85 across the tip of the film F to fold the tip of the film F lengthwise. Consequently, the possibility of film jamming at the time of the automatic loading is eliminated.

Description

[Detailed Description of the Invention] The present invention conveys a microfilm sent out from a film storage section to a film winding section via a film running path, and an optical unit in the middle of the film running path. The present invention relates to an image recording device that records an image on a film using a laser beam emitted from a laser beam.

In recent years, various devices have been provided that record images one frame at a time on a long microfilm using a laser beam. This type of device generally consists of a raw film cartridge for supplying unexposed raw film, a laser beam optical unit, a take-up cartridge for sequentially winding recorded film, and an optical unit for exposing raw film to an optical unit. It is comprised of a film transport mechanism that transports the film to a position and further transports it to a winding cartridge, and a control mechanism.

By the way, in this type of image recording device, when the film is automatically set up (autoloading) in the travel path, the leading edge of the film gets caught in the cut in the guide member installed in the path, causing a so-called jam. It has some problems. Particularly, when the remaining amount of raw film becomes low, the portion of the film with strong curling tendency is fed out, and the occurrence rate of jam increases.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an image recording device that can correct the curling tendency of the leading edge of the film and prevent film jams during autoloading as much as possible. .

In order to solve the above-mentioned problems, the image recording device according to the present invention includes a film clamping means that clamps the film to form a longitudinal fold at approximately the center of the film. The film clamping means is provided near the exit of the film accommodating section, and is operated at the start of autoloading. That is, by operating the film clamping means to clamp the leading edge of the film (once) at the start of autoloading, a longitudinal fold is formed at the leading edge of the film.

This strengthens the stiffness of the leading edge of the film, corrects curling, improves straightness, and reduces film jams.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Below, embodiments of a laser beam image recording device for microfilm according to the present invention will be described with reference to the accompanying drawings.

First, the overall configuration of the laser image recording apparatus will be described with reference to FIGS. 1 and 2.

This device is a desktop type in which all parts are housed in a main body frame (1), with the arrow (A) pointing toward the front.

The raw film cartridge (50) and the take-up cartridge (100) can be attached to a holder (not shown) that is slidably installed on the front right side of the main body frame (1). A film reel (95>) wound with exposed raw film is rotatably housed, and the raw film is sent out from between a feed-out drive roller (80) and a rotatable pinch roller (81>) in contact with the feed-out drive roller (80).

A film reel is housed in the cartridge (100), and the recorded film is wound up by rotating the film reel (145) in the direction of arrow (a) in FIG.

The film travel path is constituted by a film path unit (150) installed on the left side of the main frame (1) on the front side. This unit (150) is indicated by the arrow (
A guide member (160) that roughly guides the film sent out from the raw film cartridge (50) in the film running direction indicated by C), a slack detector (161),
The guide member (162) includes a guide member (162), a main roller (170), a guide member (179), a slack detector (181), and a guide member (182).
(182) has a one-sided taratch roller (163) that can rotate only in the film transport direction, and a drive roller (18).
3) and a rotatable pinch roller (16) in contact with them.
4), (184) are installed. Guide member <1
60) is equipped with a film cutter (169), a light emitting element LED for film detection and a photosensor (SEI), and a guide member (182) is equipped with a light emitting element LED and a photosensor (SE2) for film detection. ing.

The sag detectors (161) and (181) are to ensure good running of the film for the stability of image recording. ) to (SE6) are installed in 24- sets. In addition, the main roller (170)
can be driven to rotate in the direction of arrow (b), and pinch rollers (171) and (172) are rotatably in contact with the periphery thereof.

The optical unit (200) is an integral unit of a semiconductor laser (not shown), a polygon mirror for beam scanning, an fθ lens, etc., and a laser modulated on a microfilm held on the outer peripheral surface of the main roller (170). Irradiate the beam and record the image. In this recording device, 1
A 6 mm wet silver halide film is used to reduce the normal A4 size image to 1724 and record the image at a density of 96Q ODPI.

On the other hand, the optical unit (2) is located at the rear of the main body frame (1).
00), a power supply unit (10) for driving the film pass unit (150), etc., and various control boards (11).
) are accommodated.

Here, the running of the film will be explained.

Film is automatically loaded (autoloading). First, the film sent out from the delivery rollers (80) and (81) is conveyed to the slack detector (161) via the guide member (160), and then the film is further conveyed to the slack detector (161) by the one-sided latch roller pair.
163) and (164) to the main roller (17).
0), wraps around the outer peripheral surface of the main roller (170) in the direction of arrow (b), and passes through the pinch roller (171).
, (172), it is brought into close contact with the main roller (170), and is conveyed to the slack detector (181) via the guide member (179) by rotation of the main roller (170). Furthermore, slack control rollers (183), (18
4), a conveying force is applied to the winding cartridge (100
) is wound onto the film reel (145).

On the other hand, image recording by the optical unit (200) uses the laser beam scanning (scanning perpendicular to the top of the paper in FIG. 2) by the aforementioned polygon mirror as the main scanning, and the film is transported by the rotation of the main roller (170). is performed as a sub-scan. At this time, the main roller (170) is rotated at a constant speed.

When the film is detected by the photosensor (SE3) in the slack detector (161), the drive of the delivery roller (80) is stopped, and when the film is no longer detected by the photosensor (SE4), the delivery roller (80) is stopped. The photosensor (80) is rotated in the slack detector (181).
When the film is detected in SE5), the roller (183)
, when the film reel (145) is rotated and the photo sensor (SE6) no longer detects the film,
Stop those drives. The above slack control is also performed during automatic film loading.

When the desired recording is completed, the cutter (169) is operated to cut the film and wind the cut film onto the film reel (145).

In the above configuration, during autoloading, the film is mainly loaded directly in front of the cutter (169), in the guide (173),
The vicinity of (174) and the winding cartridge (100)
Easy to jam in the introduction to. Such a film jam is caused by the fact that the film develops a so-called curl while being wound onto the film reel (95), and the leading edge of the film tends to curl. Therefore, in this embodiment, a film clamping means (82) was installed just before the cutter (169).

As shown in FIGS. 3 and 4, the film clamping means (82) is arranged between the side frame (s3) and the holding member (84) and the support member (85) in the vertical direction. It is movably attached to both members (84), <85).
The opposing surfaces are formed by gently sloping peaks and valleys at the same angle. The receiver member (85) is a compression coil spring (86)
, <as). The holding member (84>) is urged upward by tension coil springs (87), (87), and a cam (88) is in pressure contact with the upper surface.The cam (88>) is supported by a motor (not shown). shaft(
Arrow (d) from the solid line position in Figure 3 with 88a) as the fulcrum
It is driven one rotation in the direction. The holding member (84) has a cam (
88) is in the solid line position in FIG.
) to maintain a predetermined gap through which the film (F) can pass. Then, as the cam (88) rotates in the direction of arrow (d), the holding member (84) moves downward, and
When rotated, the receiver clamps the film (F) with the member (85>) (see Figure 4).This forms a longitudinal fold in the center of the film (F).The cam (88)
When further rotated in the direction of arrow (d), the holding member (84
) returns upward due to the spring force of the tension coil springs (87) and (87).

The above operations are executed at the start of autoloading. The details will be explained with reference to FIGS. 5 and 6.

Autoloading is started by turning on a film set-up switch on an operation panel (not shown). When the switch is turned on, the delivery motor is turned on,
The delivery rollers (80) and (81) are rotationally driven.

With this, the leading edge of the film (F) sandwiched between the rollers (80) and (81) is brought closer to the film sandwiching means (82).
(84) and (85) [see FIGS. 5(a) and (b)]. When the leading edge of the film (F) reaches between the members (84) and (85), the feed motor is temporarily turned off, and at the same time, the cam motor is turned on.

The cam motor is turned on while the cam (88) rotates once, and when the cam (88) rotates 174 times, the holding member (84)
The receiver presses the member (85) through the tip of the film (F) [see Fig. 5(C)] to create a longitudinal crease at the tip of the film (F). When the cam (88) rotates once, the cam motor is turned off and the feed motor is turned on, so that the film (F) is fed into the film path unit (150). Thereafter, the film (F) is passed through the sag detector (1
61) to the main roller (170), and further introduced into the take-up cartridge (100) through a slack detector (181). Details of the control here will be omitted.

On the other hand, when the predetermined image recording is completed, the cut/wind switch on the operation panel is turned on, and the cutter (169) operates to cut the film (F).

The cut recorded film is transferred to the main roller (170
) etc., the winding cartridge (10
0) is stored inside. On the other hand, for the raw film upstream from the cutting position, by reversing the feed motor, the leading end of the raw film is rotated between the feed rollers (80) and (al).
be pulled back to. Therefore, the next autoloading will be started from this state.

That is, at the start of autoloading, the film (F) is creased in the longitudinal direction at the center of its tip, the curl is corrected, the film is made stiffer, and its straightness is improved. This allows the cutter (169), guide (
173), (174), etc., are transported without getting caught in the cuts in the guide member.

Note that the image recording apparatus according to the present invention is not limited to the above-described embodiments, and can be variously modified within the scope of the gist.

For example, the film clamping means (82) can adopt various configurations, and the driving means of the cam (88) may be a solenoid instead of a motor. It may also be installed immediately after the delivery rollers (80) and (81).

Alternatively, if the raw film cartridge (50) has a structure that can be divided into two parts in the vertical direction at the feed rollers (80) and (81), a film clamping means is provided in the divided part and the film is inserted into the cartridge. (50) It is also possible to have a configuration in which a crease is formed when the device is attached to the device.

As is clear from the above explanation, according to the present invention, the film clamping means provided near the exit of the film accommodating section is activated at the start of autoloading, so that the abbreviation of the leading edge of the film is A longitudinal crease can be formed in the center, which makes the leading edge of the film stronger, improves straightness, and eliminates the risk of film jamming during autoloading.

[Brief explanation of drawings]

The drawings show an embodiment of the image recording device according to the present invention, and the first embodiment
The figure is a perspective view showing the schematic structure of the laser image recording device.
The figure is a front view illustrating the film travel path, Figures 3 and 4 are front views of the film clamping means, Figure 5 is an explanatory diagram of the operation of the film clamping means, and Figure 6 is when autoloading starts. FIG. (50>...Raw film cartridge, (80), (
81)...Feeding roller, (82)...Film clamping means, (84)...Press member, (85)...Buffer member, (88>...Cam, (100) ... Winding cartridge, (150) ... Film pass unit, (170) ... Main roller, (200) ... Optical unit, (F) ... Film. 12-

Claims (1)

[Claims] 1. The microfilm sent out from the film storage section is conveyed to the film winding section through the film running path, and the film is placed on the film by a laser beam emitted from an optical unit in the middle of the film running path. In an image recording device for recording an image, a film clamping means is installed in the vicinity of the exit of the accommodating part so as to be able to clamp the film, and the clamping operation creates a longitudinal crease at approximately the center of the film; An image recording apparatus comprising: a control means for operating the film nipping means at the start of a process for automatically loading a film into the film running path.