JPS61279844A - Automatic photographic printing device - Google Patents

Abstract

PURPOSE:To attain systematization with an automatic developing device by arranging a vibrator on the rear position of printing paper to be discharged in an accumulator part. CONSTITUTION:The accumulator part A2 is arranged on the upper part of a carrying mechanism to discharge printing paper smoothly and accumulate exposed printing paper, so that the exposed printing paper can be supplied to a developing part with a processing speed slower than a normal exposing processing speed in accordance with the processing speed of the developing part. Consequently, an exposing-developing process can be continuously executed and the systematization with the automatic developing device can be attained. The vibrator A24 is fitted to a side plate (b) on the paper discharge side in an upper space RU of the accumulator part A2 and horizontal (a direction contacting/separating to/from the rear of paper) vibration is applied to the printing paper by the vibrator A24, so that the printing paper is prevented from partial overlap and mutual adhesion and the smooth carrying of the printing paper can be attained. Thus, the systematization with the automatic developing device can be attained more easily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an automatic photoprinting apparatus for exposing and printing photosensitive materials.

[Technology background]

Generally, in automatic photo printing equipment, photosensitive materials,
For example, black and white photographic paper or yellow pigment material,
Color photographic paper, etc. (hereinafter referred to as "photographic paper") having a photosensitive layer containing a dye image forming substance such as a magenta dye substance and a cyan dye substance is sequentially transferred to an exposure section, where it is already A light image corresponding to the photographed and developed negative film is projected onto the photographic paper for exposure processing, and the exposed photographic paper is sequentially discharged. The exposed photographic paper thus obtained is transferred, for example, to an automatic developing device having a plurality of processing tanks for developing, fixing, stabilizing, washing, etc., and undergoes each processing step to become a finished product.

By the way, in recent years, from the perspective of speeding up the development process, end-users such as camera stores have begun to carry out a series of processing steps from developing the negative film to printing and developing it on photographic paper to obtaining the finished product. Therefore, it is desired to develop an automatic printing apparatus-automatic developing apparatus system having a relatively compact and simple configuration.

However, in systematizing such an automatic printing device and an automatic developing device, the processing speeds of the two devices are quite different, so it is difficult to operate both devices efficiently while conveying photographic paper smoothly in continuous Vt. There is a problem that.

[Problem that the invention seeks to solve]

The present invention solves the problems in systematization with an automatic developing device, and by temporarily stocking exposure method photographic paper in a smooth and safe condition, it can be continuously supplied to the developing section and automatically developed. It is an object of the present invention to provide an automatic photoprinting device that can advantageously achieve systemization with the device.

[Means for solving problems]

The above-mentioned problems are: (a) an exposure unit that projects a light image to be printed and prints it onto photographic paper; (b) a paper feed unit that transports the photographic paper in response to exposure processing; and (c) a paper feed unit. (d) an accumulator section that accumulates the exposed prints between the exposure section and the transport mechanism; the accumulator section The problem is solved by an automatic photographic printing apparatus characterized in that a vibrator is provided on the back side of the photographic paper to be ejected for applying vibrations to the photographic paper in the direction of approaching and separating from the photographic paper.

[Effect]

In the apparatus configured as above, the photographic paper passes through the exposure section intermittently according to the exposure processing speed by the operation of the paper feed section, is then transferred to the accumulator section and accumulated there, and is further developed by the conveyance mechanism. continuously supplied to the parts.

By providing an accumulator section upstream of the conveyance mechanism, not only can the photographic paper be smoothly discharged, but also the exposed photographic paper can be stored in this accumulator section, which provides the following advantages: 1.
Exposure photographic paper can be supplied to the developing section, which has a processing speed lower than the normal exposure processing speed, in accordance with the processing speed, and it becomes possible to perform the exposure and development processing steps continuously. Furthermore, in the accumulator section, a vibrator is provided on the back side of the photographic paper to be discharged, and this vibrator applies vibration to the photographic paper in a direction toward and away from it, so that the photographic paper overlaps locally. This prevents the paper from adhering to each other, and enables smooth conveyance of the photographic paper.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIG. 1, numeral 1 represents the main body of an automatic photoprinting apparatus, and the inside of the main body 1 is shielded from light by a case 11 (partially omitted). Then, the case 11 is level-adjusted by an adjuster 15 provided on its bottom plate so that it is installed horizontally at a predetermined height position.

An exposure section 2 is located at the lower center of the main body 1, and an optical image corresponding to a negative film is projected onto the exposure section 2 at the upper center.
An exposure mechanism 3 is provided for exposing photographic paper (hereinafter referred to as "photographic paper") to be exposed.
An inlet 12 for introducing paper (simply referred to as "paper") and an outlet 13 for discharging the paper after exposure processing are formed. Within the main body 1, the paper passage generally extends downward from the inlet 12 to the first accumulator section A.
1 to the exposure section 2, further passes through the exposure section 2, extends upward, and reaches the outlet 13 via the second accumulator section A2.

A paper path PA from the inlet 12 to the exposure section 2 and a paper path PB from the exposure section 2 to the exit 13 are formed on both sides of the optical path region from the exposure mechanism 3 to the exposure section 2, sandwiching the same. ing.

Further, along the paper path PA leading from the inlet 12 to the exposure section 2, a paper loop is formed in the paper feeding section 4 for sending out the paper drawn out from the magazine 40 attached to the main body l and the first accumulator section A1. A movable guide section 5 that contributes to formation is provided, and a paper feed section 6 is provided along the paper path PB from the exposure section 2 to the outlet 13.
, a hole punch section 10, a cutter section 20, a hole detection sensor 30, and a paper discharge section 7 for forming a paper loop in the second accumulator section A2 and conveying the paper.

The exposure section 2 includes a base 21 fixed to the main body 1 and the base 2.
A printing frame 23 for defining an exposure area 22 is arranged on the printing frame 1 through a paper passage. Reference numeral 24 denotes a plate-shaped or frame-shaped load guide provided on one end side of the baking frame 23. This load guide 24 is connected to a lifting motor 27 via a worm wheel 25 and a worm gear 26, and is moved vertically around its lower end. It is pivotably supported for rotation in the horizontal direction.

When automatically loading paper, the load guide 24 is lowered to the exposure area 22 to form a paper passage gap G between it and the base 21, and during exposure, the load guide 24 is raised or When 24 also serves as a baking frame, it remains in a lowered state. Reference numerals 28 and 29 are limit switches for detecting the upper and lower limit positions of the load guide 24 and controlling the operation of the lifting motor 27, respectively.

In the illustrated example, the exposure mechanism 3 includes, for example, a light source 31 having a built-in cut filter (three primary colors of yellow, magenta, and cyan), a negative carrier 32 holding a negative film F, a lens 33, and an electromagnetic solenoid 34. A dark shutter 35 that opens and closes when activated is arranged sequentially from above, and a photometric element 36 is provided around the lens 33 for detecting light transmitted through the film and controlling the selection of a cut filter and the operation of the dark shutter 35. . The light image supplied from the exposure mechanism 3 is directly projected onto the exposure section 2 without passing through other optical systems such as mirrors.

The paper feeding section 4 includes a feeding roller 41 and a pressure roller 42, which are disposed facing the inlet 12. The feeding roller 41 is rotated clockwise by a motor 43 having a built-in overrunning clutch. , the pressure roller 42 is moved between a rest position spaced above the feed roller 41 and a rest position by a link mechanism and lever 44 (not shown).
It is configured so that it can be switched between the operating position and the operating position in which it is pressed.

The magazine 40 includes a box main body 45 that stores rolls of paper to be exposed, and a paper drawer 46 that projects from the upper side wall of the box main body 45.

The paper drawer 46 can be inserted into the main body 1 from the entrance I2, and as shown in detail in FIG. 2, the upper guide plate 1a,
It is composed of a lower guide plate 1b and side plates 2a, 2b, and cutouts 3a, 3b are formed in the upper guide plate 1a and lower guide plate 1b for receiving the lower part of the pressure roller 42 and the upper part of the feeding roller 41. ing.

In FIG. 1, 50a and 50b are a pair of paper guides that guide the paper in the vertical direction, and 47 is a paper detection switch.

The first accumulator section A1 is located outside the paper path PA, and by opening the movable guide section 5, paper is introduced into the three-time accumulator section A1. All is a loop detection sensor for detecting a paper loop formed in the first accumulator section A1.

The movable guide section 5 has a guide plate 51 (indicated by a two-dot chain line) located on an extension of the paper guide 50a, and the upper end of the guide plate 51 is pivotally connected to a shaft 52. A tension spring 5 that separates the tip of the plate 51 to the outside of the paper path P shown by the two-dot chain line to open it.
It is connected to one end of 3.

The shaft 52 also has a pinion gear 54 fixed thereto.
and is connected to be rotationally driven by an electromagnetic solenoid 56 via a rack gear 55 that meshes with the pinion gear 54.
i In Fig. 1, R1 is a guide roller, 60 is a turn guide consisting of a large number of rollers, and these are:.

is transferred from the first accumulator section A1.
], 9 paper is bent horizontally and exposed part 2
supplied to The sound paper feed section 6 is provided at a downstream position close to the exposure section 2. The paper feed (part 6 is the paper
・] Main feed rows arranged facing each other in the passage PB
The feed roller 61 is provided with a roller 61 and a pressure roller 62, and the one feed roller 61 is intermittently driven to rotate in the forward or reverse direction by a pulse motor 63. R2 is a turn roller that turns the paper vertically upward.

70a and 70b are a pair of paper guides that guide the paper from the exposure section 2 almost vertically upward, and the paper guides 70a and 70b connect to the outlet 13 at their upper ends.
Arc-shaped guide portions 701 and 7 curved to the right toward
02 is formed, and a guide roller R3 is provided at the tip of the arcuate guide 702 of the paper guide 70b.

The second accumulator section A2 is located outside the paper passage PB and is formed below the paper discharge section 7, which will be described later. As shown in FIG. 5, the second accumulator part A2 has an internal space that is generally L-shaped as a whole, with an upper space RU extending in the vertical direction and a lower part of the upper space RU extending in the horizontal direction. It is composed of a lower space RL.

A fan A22 is provided above the upper space RU to blow air toward the upper space RU and to form an air flow between the paper introduced into the second accumulator section A2 and the paper discharged. It is being

In addition, in order to smoothly move the paper, a guide member A23 is provided on the side plate a disposed facing the paper path on the side where the paper is introduced in the upper space RU so as to face the back surface of the descending paper. is formed. As the guide member A23, a sliding member having a sliding surface with a small coefficient of friction with the paper or a rotating member such as a roller can be used.

As the material constituting the sliding member, for example, a fluororesin having a maximum coefficient of static friction with the photosensitive agent surface of paper of 0.1 or less, or a material whose surface has been treated with the same can be preferably used. Furthermore, the form or arrangement of the sliding member is not particularly limited; for example, as shown in FIGS. Rondos, such as body or semi-cylindrical shapes, can be provided at one or more locations.

A vibrator that applies vibration to the paper in the horizontal direction (direction toward and away from the back surface of the paper) is installed on the side plate facing the paper path on the side where the paper is discharged in the upper space RU. A24 is formed. As the vibrator A24, various types of vibrators that generate vibration mechanically or electrically can be used, such as one that uses eccentric rotation, one that uses intermittent operation of a solenoid, a ground plate spring, a piezoelectric vibrator, etc. be able to. The amplitude of the vibration of the vibrator A24 is set to 0 in order to give sufficient lateral vibration to the paper.
．． It is preferable that it is 5 mn+ or more. In addition, the frequency of the vibrator A24 does not need to be particularly high, and is at most 100H.
About z is sufficient.

A21 is a loop detection sensor for detecting a paper loop formed in the second accumulator section A2.

The lower space RL is formed to be located below the exposure section 2 from the lower part of the upper space RU, and its lower end is located below the bottom plate of the case 11 and is at the same level as the floor surface. By doing this, the dead space between the exposure section 2 and the bottom plate of the case 11 and the dead space between the case 11 and the floor surface formed by the adjuster 15 can be reduced.
It can be effectively used as a paper accumulator.

, F□1sfl RL□, 1-□ゎ. , Yo, Kae 1. It is formed by a loose bellows, and the bottom plate d
is movable in the vertical direction. Then, when using the device, #b゛TLt'I! IE+'zdG! 1Tit
TTl! , 'l-207-+: The internal space of the emulator section A2 is maximized, and when the device is to be moved, the bottom plate d is raised upward to the extent that it does not get in the way of movement.

This second accumulator section A2 accumulates papers having a number of printed images of at least one order, that is, the number of frames of one negative film, for example, +94*. a. □□□Chapter 4a
'I□Paper discharge section 7
As shown enlarged in the figure, there are two mechanisms, i.e. a second accumulator.
), part A2 inner case, 6-212. −
Bu. formation and the j, −2,
/L/-1 (DWa□Pt'l &: ir fi eeaa.7.-A ゛"Guide mechanism 8
and a conveying mechanism 9 for conveying the paper out of the main body 1 through the outlet 13.

The loop guide mechanism 8 includes a second accumulator section A.
A guide roller R4 for guiding the tip of the paper loop is provided on the paper discharge side of the second accumulator section A2, and a loop forming roller R is provided at an approximately intermediate position between this guide roller R4 and the guide roller R3 on the paper introduction side of the second accumulator section A2.
It is configured by arranging 5. The loop-forming roller R5 is pivotally attached to the distal end of a mounting board 82 whose base end is supported by a fulcrum shaft 81 via a mounting member 83. A regulating roller 85 is provided in the middle of the mounting board 82 at a position in contact with the guide roller R4 via the mounting member 84, and the regulating roller 85 and the guide roller R4 form a feed guide roller section. An entanglement prevention roller 86 is further connected with a gear to the regulation roller 85 . 8
Reference numeral 7 denotes a cam roller that is provided on the base end side of the mounting board 82 and follows the rotation of the cam 71, the details of which will be described later.

The conveying mechanism 9 constituting the paper discharging section 7 includes a discharging roller 91 located inside the outlet 13 and facing in the paper path PB.
and a pressure roller 92.

The discharge roller 91 has a built-in one-way clutch, is rotatable only in the clockwise direction, and is driven by the motor 72. The pressure roller 92 is pivotally attached to the tip of a mounting board 94 whose base end is pivotally supported by a fulcrum shaft 93 . Further, a cam roller 95 is provided at the lower end of the mounting board 94 and follows the rotation of the cam 71, the details of which will be described later.

The cam 71 is a shell-shaped eccentric cam with an enlarged diameter at one end.
This cam 71 has a built-in one-way clutch, is rotatable only in a counterclockwise direction about a camshaft 76, and is driven by the motor 72. 73 is a switch for detecting the rotational position of the cam 71.

In FIG. 3, 74a and 74b are paper guides, and 75 is a paper detection sensor provided inside the outlet 13.

Next, the operation of the printing apparatus configured as described above will be explained.

Paper loading is performed automatically as follows.

First, in preparation for transferring the paper, the electromagnetic solenoid 56 in the movable guide section 5 is activated to close the guide plate 51 (the state indicated by the two-dot chain line in the figure), and the exposure section 2 is raised and lowered. The motor 27 is operated to lower the load guide 24, thereby forming a paper conveyance path. In addition, in the paper discharge section 7, the third
As shown by the two-dot chain line in the figure, the loop forming roller R
5, the pressure roller 92, etc. are in a state separated from the paper path PB (initial state B). That is, when the cam 71 is rotated counterclockwise by reversing the motor 72, the large diameter portion of the cam 71 is separated from the paper path PB. 95 and 8
7 and pushes them up, the mounting boards 94 and 82 rotate around the fulcrum shafts 93 and 81, respectively, and as a result, the loop forming roller R5, the regulating roller 84 and The entrainment prevention roller 86 and the pressure roller 92 on the mounting board 94 rise.

Paper is fed in the above state.

As shown in FIG. 2, the magazine 40 is in a state in which one end of the paper is pulled out from the roll stored therein to the tip of the paper drawer part 46, and the paper drawer part 46 is brought into a rest position with the feeding roller 41. Loading of the magazine 40 is completed by inserting it between a certain pressure roller 42 (indicated by a two-dot chain line in FIG. 1) and lowering the pressure roller 42. At this time, the crimping motor 42 and the feeding roller 41 are in a state where the paper Q is clamped in the notches 3a and 3b of the paper pull-out section 46 in the magazine 40.

In this state, the motor 43 in the paper feeding section 4
Then, the pulse motor 63 in the paper feeding section 6 is driven. The motor in the paper feeding section 4
.

, the feeding roller 41 and the pressure roller are driven by the roller 43.
: 42 rotates and the paper A is sent out.

, ゛ passes through the movable guide section 5, the guide roller R1, the turn j IS guide 60, and the exposure section 2 to reach the paper feeding section.
[；゛・）、1 6 The paper has reached the main feed roller 61
□Daddy 8 is further conveyed by the rotation of this main feed roller 61.
"Pa1-:");
0. ,.

and passes through the cutter part 20. When the leading edge of the paper is detected by the hole detection sensor 30, the motor 43 in the paper feeding section 4 and the pulse motor 63 in the paper feeding section 6 are stopped, and the conveyance of the paper is temporarily stopped.

In the above paper conveyance, the circumferential speed of the main feed roller 61 in the paper feed section 6 is set higher than the circumferential speed of the feed roller 41 in the paper feed section 4, so that the paper does not reach the main feed roller 61. Thereafter, the feed roller 41 is transported in synchronization with the circumferential speed of the cough wheel feed roller 61, and at this time, the feed roller 41 overruns in accordance with the rotational speed of the main feed roller 61 due to the operation of the one-way clutch of the motor 43.

Next, the electromagnetic solenoid 56 in the movable guide section 5 is turned off to release the guide plate 51 from being restrained. The released guide plate 51 is brought into an open state as shown by the solid line in FIG. 1 due to the tensile force of the tension spring 53. In this state, the pulse motor 63 of the paper feed section 6 is rotated in reverse so that the leading edge of the paper is positioned slightly downstream of the main feed roller 61.
For example, the paper is returned to the position indicated by * in FIG. 1 and transferred.

At this time, by keeping the feeding roller 41 in the paper feeding section 4 in a stopped state, paper corresponding to the amount of paper for reverse transport is accumulated in a loop shape in the first accumulator section A1.

Then, in preparation for the next exposure process, the load guide 24 in the exposure section 2 is raised, and the exposure area 22 is opened.

However, if the load guide 24 functions as a baking frame, there is no need to raise it, and automatic paper loading ends when the load guide 24 reaches 0 or more.

The exposure section 2
Exposure processing is performed in . In this exposure process, the transmitted light density (LATD) of the negative film F is usually first measured by the photometric element 36, and the color balance and color density are automatically adjusted based on this, and further corrections are made by the operator. to determine bare light conditions.

Then, the opening and closing of the cut filter and dark shank 35 in the light source 31 are controlled according to this bare light condition,
Exposure is performed. When the exposure is completed, the paper feed section 6
The pulse motor 63 rotates normally to transport the paper a predetermined length, and the next unexposed area is transported to the exposure area 22 and exposed in sequence.

In the first accumulator section A1, when the accumulated paper decreases as the exposure process progresses and the tip of the paper loop rises and the loop detection sensor All detects that the loop has contracted, the motor in the paper feeding section 4 43
is activated, and the paper is fed until it reaches the level of the loop detection sensor All. Therefore, more than a certain amount of paper is always accumulated in the first accumulator section A1, and as a result, when the paper is conveyed in the forward direction by the paper feeding section 6, unreasonable tension is applied to the paper. This prevents paper from being fed smoothly and with high precision.

After the exposure process has been completed, a hole punch section 10 punches holes at specific positions on the paper based on information G input in advance according to the size and style of the printing screen. This punch hole is used as a cutting position indication mark for automatically canting the paper in one screen unit after the subsequent development and drying process, or as a cut position instruction mark for forced cutting described later.
D.

Used as a position indicating mark. Paper Hazara “iM”
'Qo-"r6""1'""4°0゛"-"
1゜20 and the paper discharge section via the hole detection sensor 30 [・7′″1!=M;1.″
・, 1° guided by the paper guides 70a and 70b and reaches the paper introduction side of the second accumulator section A2 (
.:.□ As shown by the two-dot chain line in FIG. 3, the paper is transferred beyond the upper space of the second accumulator section A2, while being guided by the paper guides 74a and 74b. At this time, the paper is transported by its own elasticity (so-called stiffness) with its tip along the arc-shaped guide portion 701 of the paper guide 70a, and after reaching the guide roller R4, the paper is transferred to the paper guide 74a. , 74b, and does not fall into the second accumulator section A2. Then, when the leading edge of the paper is detected by the paper detection sensor 75, the operation of the paper feeding section 6 is stopped, and the paper conveyance is stopped.

Note that the detection of whether or not the paper has been normally transferred in the upper space of the second accumulator section A2 is as follows.
For example, do the following: That is, the amount of paper transferred after passing the hole detection sensor 30 is monitored, and when the amount of paper transferred has almost reached a length corresponding to the conveyance distance between the hole detection sensor 30 and the paper detection sensor 75, the paper is transferred. If the leading edge of the paper is detected by the paper detection sensor 75, it is determined to be normal, but if it is not detected, it is abnormal and a warning is issued to that effect.

As described above, after the leading edge of the paper is detected by the paper detection sensor 75 and the paper transport is stopped, the motor 72 is reversed and the cam 71 is rotated 180 degrees counterclockwise, and the cam roller is rotated 180 degrees counterclockwise. 87 and 95 are lowered, and as a result, the loop guide roller R5, the regulation roller 85, the entrainment prevention roller 86, and the pressure roller 92 are lowered, resulting in the state shown by the solid line in the figure. In this state, the leading edge of the paper is pressed and fixed by the discharge roller 91 and the pressure roller 92, and on the paper introduction side of the second accumulator section A2, the paper is transferred to the loop forming roller R.
5, the paper feed section 6 is pressed down from above and bent downward, so the paper feed section 6 is pressed down again while the motor 72 is stopped.
When the paper is conveyed in the forward direction, the paper descends while being curved downward by the loop forming roller R5, and is accumulated in the second accumulator section A2 while forming a loop of an unspecified shape.

When the mass-market paper is accumulated in the second accumulator section A2, the motor 72 is rotated in the normal direction to rotate the conveying roller 91 clockwise to start discharging the paper. The paper is transferred from the second accumulator section A2 to between the guide roller R4 and the regulation roller 85, and further to the discharge roller 91.
and the pressure roller 92, and is discharged from the main body 1 through the outlet 13.

At this time, the regulating roller 85 of the loop guide mechanism 8 rotates counterclockwise as the paper is transferred, and the entrainment prevention roller 86 is gear-connected to the regulating roller 85, so it rotates clockwise in conjunction with this. It will rotate to . In this manner, by rotating the entrainment prevention roller 86 clockwise, paper conveyance abnormalities are prevented. That is, for example, as shown in FIG. 4, in a case where an overlapping portion J is generated in the paper portion to be conveyed, when the entrainment prevention roller 86 rotates clockwise, this overlapping portion J is caused to overlap the paper to be conveyed. As a result, the paper is not caught between the guide roller R4 and the regulating roller 85 in an overlapping state, and smooth paper conveyance can be achieved.

In addition, in the second accumulator section A2, an air flow is supplied between the paper on the introduction side and the paper on the discharge side by the fan A22, and this air flow prevents these papers from coming into contact with each other. . As a result, the paper can be introduced and discharged smoothly, and damage to the photosensitive agent layer due to contact with the paper can be prevented. Furthermore, by applying a moderate amount of air pressure to the entire inside of the paper loop, the shape of the loop is maintained stably, thereby preventing the paper from partially overlapping or becoming tangled.
1' Conveyed smoothly without sticking. In addition, the upper space of the second accumulator section A2 is located opposite to the paper passage facing the introduction side of the RU.
1'□■ i' A guide member A23 with low frictional resistance is formed.
□)] Piku.

Because of this, the paper is smoothly transferred downwards.
i, [” is written, and the lower space RL!:i is written.

i! ”OIt: , li2 (D 7 'r x A
Iy -968A 2 (7) 16B'1.
”;□:1:.

Vibrator A24 facing the paper passage on the discharge side of the RU
1. ’)・ is provided, which causes the paper to shake in the horizontal direction.
! I.

. 3. ．． Oh, wow. Yoka 14, He-7, Ka, 5□44
Todo, z, -rmxo: ('t@t, L, "2"< f!
<a41. z1. ”(=t l:.

Even if you do wear it, it will not last for a long time.
)□1 1.: Therefore, the paper is transferred smoothly to the second space.
:11:.

It is discharged from the humulator section A2.
□′□ :, ゛Page accumulated in the second accumulator section A2
:,.

L is discharged from the main body 1 through the outlet 13 as described above.
The processing speed of the automatic developing device (not shown) is
It is continuously supplied at a constant speed according to the requirements. That is,
□゛□ (1!, 1. Automatic developing equipment generally performs exposure processing.
, :.

It is necessary to convey and develop the paper at a specific, constant speed required for the desired development, but the exposure processing speed in automatic photoprinting equipment is usually faster than the development processing speed in automatic processing equipment. .

Therefore, by providing the second accumulator section A2 in the main body 1 of the printing apparatus and accumulating the exposed paper therein, the developing process can be performed without stopping. In this way, the second accumulator section A2 not only prevents undue tension from being applied to the paper when discharging the paper, but also functions as a storage for the exposure section paper.

Next, forced cutting of paper during paper ejection will be explained.

When the exposure operation in the automatic photo printing device is interrupted, the operation of the paper feed section 6 is stopped and paper is no longer supplied to the second accumulator section A2. The discharge roller 91 continues to be driven to only discharge the paper, and the paper accumulated in the accumulator section A2 gradually decreases. Therefore, if the paper continues to be ejected, the paper will break, so in such a case, when the paper accumulated in the second accumulator section A2 decreases and reaches a certain amount, the paper is partially removed by the cutter. 20, an automatic cutting operation (hereinafter referred to as "forced cut") is performed.

Specifically, this forced cut is performed as follows. When the loop detection sensor A21 detects the shrinkage of the paper loop in the second accumulator section A2, the pulse motor 63 of the paper feed section 6 is reversed to transport the paper back toward the cutter part 20 side. However, this reverse transport operation cannot be performed if the above-mentioned point in time when the loop detection sensor A21 no longer detects the paper is in progress during other operations (such as exposure or transport of paper in the forward direction by the paper feed section 6). Heavy 1fl v fs,,,CI;
T. ,,,6 Yu. A1,7. Ah, yeah. It will be held on 5I. Then, the hole detection sensor 30 detects the above-mentioned hole formed during the conveyance after exposure, and then the cutter part 2 The screen is forcibly cut at an appropriate position depending on the type of the burned screen.

The paper left on the paper feeding section 4 side due to the forced cutting is conveyed in the forward direction by the paper feeding section 6 by a length corresponding to the distance traveled backward.

As a result, the paper returns to the state before the reverse transport, and the next exposed area that has been exposed is set in the exposure section 2, so that no paper loss occurs (the next Exposure can be performed.

On the other hand, the paper transferred to the second accumulator section A2 after being forcibly cut is transferred in the forward direction by the conveying mechanism 9, and is supplied from the outlet 13 to the automatic developing device. When the rear end of the paper is detected by the paper detection sensor 75, the motor 72 is reversed and the cam 71 is rotated counterclockwise by 180 degrees. 85, the entrainment prevention roller 86, and the pressure roller 92 are raised and returned to the initial state shown by the two-dot chain line in FIG. From then on, perform the same operations as described for loading one paper.

Paper conveyance in the paper discharge section 7 is performed.

By the way, until the return to the initial state is completed after the forced cut described above, the 6-"
,: 2--Pa cannot be transported to the pile removal section 7. However, t□ means that the longer the time required during this period, the more
□' This is undesirable because the processing efficiency decreases.

Therefore, in order to alleviate this inconvenience, when discharging paper that has been forcibly canted, the
The rotational speed of the motor 72 is automatically controlled so that the i speed is sufficiently higher than the processing speed of the automatic developing device, and the paper is rapidly fed.This reduces the time loss from, for example, several tens of seconds to several seconds. It becomes possible to shorten the length. Further, the rapidly fed paper may be stored in a paper accumulator section provided in the automatic developing device, for example.

Although one embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications are possible. In the above embodiment, an example was described in which the printing device and the developing device were configured separately, but the present invention is not limited to this. For example, the printing section and the developing section are configured integrally. It also applies in automatic printing and developing devices. In this case, transport l in the above embodiment is carried to an appropriate position between the second accumulator section and the developing section! It is sufficient if the transfer means has the same function as the structure.

〔Effect of the invention〕

As described above, according to the automatic photo printing apparatus of the present invention, by providing the accumulator section upstream of the conveyance mechanism, it is possible not only to smoothly discharge the photographic paper, but also to
By accumulating exposed photographic paper in this accumulator section, the exposed photographic paper can be supplied to the developing section, which has a processing speed lower than the normal exposure processing speed, in accordance with the processing speed. It becomes possible to perform the development process continuously, and systemization with an automatic development device can be advantageously achieved.

Furthermore, in the accumulator section, a vibrator is provided facing the paper passage on the side where the photographic paper is discharged, so that vibrations are given to the photographic paper in the horizontal direction, and as a result, the photographic paper is locally This prevents the paper from overlapping and adhering to each other, thereby achieving smooth conveyance of the photographic paper.

[Brief explanation of drawings]

Fig. 1 is an explanatory view showing the entire internal structure of an embodiment of the present invention, Fig. 2 is an explanatory perspective view showing an enlarged view of the magazine and paper feeding section, and Fig. 3 is an enlarged view of the paper ejection section. FIG. 4 is an explanatory diagram showing a part of the paper discharge section, FIG. 5 is an explanatory sectional view showing the second accumulator section, and FIG. 6 is an explanatory diagram showing a guide member in the second accumulator section. FIG. 3 is a perspective view showing an example of a sliding member. 1...Body 11...Case 12.
...Inlet 13...Outlet A1...First accumulator section All...Loop detection sensor A2...Second accumulator section RU...Upper space RL...Lower space A2
2...Fan A23...Guide member A
21... Loop detection sensor A24... Vibrator PA
, PB...Paper passage 2...Exposure section 21...Base 22...
・Exposure area 23...Printing frame 24...Load guide 3...Exposure mechanism 31...Light source 32...
・Negative carrier 33... Lens 35... Dark shank 36... Photometric element 4... Paper feeding section 41... Feeding roller 42... Pressure roller 40... Magazine 45... box body
46...Paper drawer section 5...Movable guide section 51...Guide plate 54...Pinion gear 55...Rack gear 6...Paper feed section 61...Car feed reroller 62...Crimp Roller 63...Pulse motor 70a, 70b...
...Paper guide 701.702...Circular guide section 7...Paper discharge section 8...Loop guide mechanism 9...Conveyance mechanism R4...Guide roller R5...Loop forming roller 82...・Mounting board 8
5... Regulating roller 86... Entrainment prevention roller 87... Cam roller 91... Discharge roller 92... Pressing roller 94... Mounting board I95... Cam roller 71... Cam
□72...Motor
-10... Hole punch part, 20... Cutter part 30... Hole detection sensor □

Claims (1)

[Claims] 1) (a) an exposure section that projects a light image to be printed and prints it onto photographic paper; (b) a paper feed section that transports the photographic paper in response to exposure processing; (c) (d) an accumulator section that accumulates the exposed photographic paper between the exposure section and the conveyance mechanism; An automatic photographic printing apparatus characterized in that, in the accumulator section, a vibrator is provided at a position on the back side of the photographic paper to be discharged, for applying vibration to the photographic paper in a direction toward and away from the photographic paper.