JPS62116458A - Separation device for recording medium after exposure in laser printer - Google Patents

Abstract

PURPOSE:To prevent the occurrence of erroneous peeling and to decrease the weight and the size of a whole device, by a method wherein a recording medium after exposure is ejected from a holding member for peeling and the peeled recording medium is fed to a conveyance part through relative movement between the holding member and the conveyance part. CONSTITUTION:A film fed by a set guide 11 is placed on a reciprocating flat bed 12, and is conveyed to an exposure part. The flat bed 12 is started to move toward its initial position, and continues to move as it is exposed at the exposure part. The film placed on the flat bed is adsorbed by an electrostatic adsorber 20. The flat bed is started to move toward its original position, and when the flat bed 12 is moved this side of a set guide 32, a reset pin 29 is ejected through and upward from the flat bed 12 by means of a solenoid 30 secured to the flat bed 12 to lift up the end surface of the film. The flat bed 12 is continued to move toward its original position, and the film is fed to a receive magazine 3 through the reset guide 32 and feed rollers 33-35.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for separating a recording medium after exposure of a laser printer.

(Background of the Invention) Conventionally, in a laser printer, a device that separates a recording medium after exposure from a holding member that holds the recording medium and sends it to a conveying section for conveying it to a receive magazine uses a suction cup,
It is generally configured to use a suction pump, a solenoid valve, or the like to suck the recording medium away from the holding member.

(Problems to be Solved by the Invention) Therefore, the entire device becomes quite large and heavy, and adjustment of the entire device also requires a considerable amount of time. In addition, paper ejection errors, static static, scratches, peeling electrification, etc. on the film surface are likely to occur frequently.

The present invention has been made in view of the above points, and provides a device for separating a recording medium after exposure of a laser printer, which is lightweight and compact, and does not cause paper ejection errors, static, scratches, peeling charging, etc. on the film surface. The purpose is to

(Means for Solving the Problems) The configuration of the present invention for achieving the above object is to record the post-exposure recording of a laser printer that separates the recording medium from the holding member holding the exposed recording medium and sends it to the conveying section. The medium separating device includes means for pushing up and peeling the recording medium from the holding member, and moving the holding member and the conveyance section relatively to send the separated recording medium to the conveyance section. It is characterized by

(Embodiment) The drawings show an embodiment of the present invention, in which FIG. 1 is a schematic configuration diagram of a laser printer, and FIG. 2 is an enlarged view of the main part of FIG. 1.

The main configuration of the laser printer is as follows.

The main body exterior part 1 is a floor type box that accommodates and supports the components of the apparatus. In order to facilitate maintenance, the supply magazine 2 and receive magazine 3 are removed, and the front cover 4 located above the middle can be opened to the front. In the event of any trouble, it can be solved by opening this location. It is now possible to do so. The supply magazine 2 stores silver halide photographic film (hereinafter simply referred to as film).
The film supply section 5 that takes out the film from the supply magazine 2 takes out the film from the supply magazine 2 using a rubber suction cup 6 and feeds the film to the feed roller 8 at the entrance of the first film transport section 7, in order to make it compact. No solenoid valves, pumps, etc. are used; only suction cups are used.

The first film transport section 7 transports the film sent from the film supply section 5, and the first film transport section 7 transports the film sent from the film supply section 5 onto the flat bed 1 using feed rollers 8, 9, a guide belt 10, and a center guide 11.
The feed rollers 8 and 9 are composed of a pair of adjacent rollers, and the feed rollers 8 and 9 are arranged in pairs above and below, and a guide belt 10 is arranged between the feed rollers 8 and 9. will be established. The guide belt 10 is a round belt, and is stretched between an intermediate roller 13 disposed between the upper and lower feed rollers 8 and 9 and one of the upper and lower feed rollers 8 and 9, respectively. Theft guide 11 is a guide plate disposed following the lower feed roller 9, and is a guide plate disposed following the feed roller 9 below.
The film sent from the camera is guided onto the flatbed 12. 14 is a photosensor detection plate provided with photosensors. At this time, a torque motor is used to synchronize the film transport with the movement of the flatbed 12,
The film is placed in the correct position on the flatbed 12. The flat bed section 15 holds the film sent from the first film transport section 7 and moves the film back and forth.
A ball screw 18 is slidably supported on the guide shaft 17 supported above and supported on the surface plate 16.
It is connected to a nut portion 19 of and is configured to reciprocate along a guide shaft 17 as the pole screw 18 rotates. An electrostatic suction cup 20 (see Japanese Patent Application No. 59-36760) is attached to the entire surface of the flat bed 12, and when feeding the film from the supply magazine 2 onto the flat bed 12, the flat bed 12
Almost at the same time as a photo sensor (not shown) detects that the film reaches a pair of left and right pins 21 that are fixed upright at the end opposite to the upper supply magazine 2,
By applying voltage to the electrostatic suction cup 20 mounted on the flat bed 12, the film will not be moved.
The deviation on the flat bed 12 can be maintained within 1f1. The held film is scanned at the same time as it passes under the pressing roller 23 provided under the CL lens holder 22, and is curled considerably (10 to 15 WM).
), it can be pressed uniformly onto the flatbed 12. When printing an image, the film can be kept small by scraping. A surface plate 16 that supports the flat vent 12 and the like is supported by a support base 24 supported by the main body exterior part 1 with a vibration isolating rubber 25 interposed therebetween. An image is recorded on the film on the flatbed 12 by the laser beam 27 from the optical section 26. In the film take-out section 2, which takes out the exposed film from above the flat bed 12, a reset bin 29 is vertically movably penetrated through the center of the end of the flat bed 12 on the receive magazine 3 side.
The attachment is fixed to a solenoid 30 fixed to the flat bed 12 by a member (not shown), and this solenoid 30 causes the reset pin 2i to protrude from the top surface of the flat bed 12 and to move the exposed film onto the flat bed 12. Push the film up from the flatbed 1
2. It is designed to be peeled off from above. In this embodiment, one reset bin 29 is provided at the center of the end as shown in FIG. 3, but if the recording medium is large, two reset bins 29 spaced apart as shown in FIG. 4 may be used. pin 29
is preferably provided on the flat bed 12 and configured to push up the film with two reset pins 29 spaced apart. The exposed film is accommodated in the receive magazine 3 while being guided by a guide belt 34.

The reset guide 32 is a temporary guide that guides the film peeled off from the flat bed 12 by the reset pin 29 to the feed roller 33 of the second film transport section 31.

The feed roller 33 is composed of a pair of adjacent rollers disposed following the reset guide 32, and the guide belt 34 is a round belt that extends between a pair of rollers 35 disposed apart above the feed roller 33. The exposed film is guided to the receive magazine 3. 36 is a photosensor detection plate provided with a photosensor. The electrical equipment section 37 is provided with a power source and the like.

And the film supply section 5, the first and second film transport sections? , 31, and the film take-out section 28 are integrated into a unit 38 for easy maintenance.
The entire feeding system can be completely removed from the main body exterior part 1 by simply removing the top cover 39 of the main body exterior part 1 and lifting up the unit. In addition, since a guide belt 10.34 is used in the feeding system to guide the film, the inside of the device can be seen at a glance by simply opening the front lid 4, making it easy to discover jams. It is.

The operation will be explained below.

The film is taken out from the supply magazine 2 by the suction cup 6 of the film supply section 5, and transferred to the first film transport section 7.
The film fed into the entrance is conveyed by feed rollers 8 and 9 while being guided by a guide belt 10, guided by a center guide 11, and fed onto a flat vent 12.

The film sent onto the flat bed 12 from the first film transport section 7 is transferred to the bin 21 on the flat bed 12.
Almost at the same time when it hits the photo sensor (not shown)
detects the film, from which the electrostatic adsorption W20 is turned on for several seconds, and the flat blade (12) begins to move to the exposure start position. Then, the torque motor of the first film transport section 7 feeds the film onto the flat bed 1z in synchronization with the movement of the flat bed 12. The leading end of the film that has come off the feed roller is fixed on the flat bellow l-12 by the suction force of the electrostatic suction cup 20, and the film is evenly placed on the flat vent 12. Then, when the flatbed I2 moves to the broken line position and returns to the film setting position (solid line position),
An image is recorded on the film on the flatbed 2 by the optical section 2G. Next, the flat head I2 moves from the reset guide 32 to the left position in the drawing. Then, the reset pin 29, which has been waiting below the top surface of the flat bed 12, is projected from above the flat bed 12 by the solenoid 30, and lifts up the end surface of the film. In this state, the flatbed 12 begins to move to the film set position (solid line position). Then, the end face of the film is picked up by a reset guide 32, and when the film reaches a rotating feed roller 33, it is caught and conveyed, and the exposed film is fed into the receive magazine 3 while being guided by a guide belt 34.

FIG. 5 shows a time chart of the operation of the laser printer. (, i) shows from the start of film supply to the entrance of the first film transport section, (b) shows from the entrance of the first film supply section to the bin of the flat head, and (
C) shows the period from the flat vent bottle to the start of exposure,
(d) shows the period from the start of exposure to the completion of exposure, (C) shows the period from the completion of exposure to the entrance of the second film transport section, and (f
) indicates the period from the entrance of the second film transport section to the completion of receiving.

(Effects of the Invention) As explained above, according to the present invention, the recording medium is provided with means for pushing up and peeling the recording medium from the holding member for the exposed recording medium, and the holding member and the conveyance section for the exposed recording medium are moved relative to each other. By moving the peeled recording medium to the conveying section, the entire device becomes lightweight and compact, eliminating paper ejection errors, and preventing static, scratches, and peeling electrification from occurring on the film surface. It's something that doesn't exist.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a schematic configuration diagram of a laser printer, FIG. 2 is an enlarged view of the main part of FIG. 1, FIGS. 3 and 4 are a plan view of a flat vent, and FIG. FIG. 5 is a diagram showing a time chart of the operation of the laser printer. 28 is a film take-out section, 29 is a reset bin, 30 is a solenoid, 31 is a second film transport section, 32 is a reset guide, 33 is a feed roller, 34 is a guide belt, and 4o is a film. Figure 1

Claims (1)

[Claims] A separating device for a recording medium after exposure of a laser printer that separates the recording medium from a holding member holding the exposed recording medium and sends the recording medium to a conveying section, comprising a means for pushing up and peeling the recording medium from the holding member, the holding member A device for separating a recording medium after exposure for a laser printer, characterized in that the separated recording medium is sent to the conveyance section by relatively moving a member and the conveyance section.