JPS61278838A - Automatic photographic printing device - Google Patents

Abstract

PURPOSE:To utilize a dead space around an optical path area effectively by arranging a leading side passage and a discharge side paper passage on both the sides of the optical path area from an exposing mechanism to an exposing part and arranging accumulator parts and other elements along the paper passages. CONSTITUTION:The 1st accumulator part A1 is arranged on the outside of the paper passage PA and paper is led into the accumulator part A1 by opening a movable guide part 5. A paper feeding part 6 is arranged on the lower position adjacent to the exposing part 2. The paper feeding part 6 has a main feeding roller 61 and a pressing roller 62 arranged oppositely about the paper passage PB and the main feeding roller 61 is rotated intermittently in the forward or backward direction by a pulse motor 63 and has a function for regulating a paper transfer speed and a transfer distance due to exposing processing. The 2nd accumulator part A2 is arranged on the outside of the paper passage PB so as to be formed on the lower part of a paper discharge part 7.

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 photographic printing/developing system having a relatively compact and simple configuration.

(Problems to be Solved by the Invention) The present invention relates to an improvement in the transportation path of photographic paper, and its purpose is to have a compact and relatively simple configuration, and to be able to perform smooth exposure processing. An object of the present invention is to provide an automatic photo printing device.

[Means for solving problems]

The above problems are as follows: (a) an exposure section that projects a light image to be printed and prints it onto photographic paper; (b) an exposure mechanism that projects a light image corresponding to the negative film onto the exposure section; and (c) an exposure section. a paper feeding section that supplies unprocessed photographic paper to the
and (d) a paper discharge section for transporting the exposed photographic paper transferred from the exposure section to the development section. This problem is solved by an automatic photographic printing apparatus characterized in that discharge side paper paths connecting the two are formed on both sides of the optical path region extending from the exposure mechanism to the exposure section.

[Effect]

In the apparatus configured as described above, the photographic paper fed from the paper feeding section passes through the paper passage on the introduction side, reaches the exposure section, undergoes exposure processing here, and then passes through the paper passage on the discharge side. The paper is then transferred from the paper discharge section to the developing section. The inlet-side paper passage and the ejection-side paper passage are each formed along the optical path on both sides of the optical path area from the exposure mechanism to the exposure section, so that the dead space around the optical path area can be effectively utilized. For example, it becomes possible to form an accumulator section for accumulating photographic paper in this dead space, and it is possible to achieve miniaturization of the apparatus.

〔Example〕

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

In FIG. 1, ``■'' represents the main body of an automatic photo printing apparatus, and the inside of the main body 1 is shielded from light by a case 11 (partially omitted). An exposure section 2 is provided at the lower center of the main body 1, and an exposure mechanism 3 for projecting a light image corresponding to a negative film onto the exposure section 2 at the upper center. An inlet 12 for introducing photographic paper to be exposed to light (hereinafter simply referred to as "paper") and an outlet 13 for discharging the exposed paper are formed in the . In the main body 1, the paper passage generally extends downward from the inlet 12, passes through the first accumulator section AI, reaches the exposure section 2, and further passes through the exposure section 2, then extends upward and passes through the first accumulator section AI. 2
It is configured to reach the outlet 13 via the accumulator section A2. The paper path PA on the introduction side from the inlet 12 to the exposure section 2 and the paper path PB on the discharge side from the exposure section 2 to the exit 13 are connected to the exposure section 2 from the exposure mechanism 3.
They are formed on both sides of the optical path region I, sandwiching it therebetween.

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 1 and the first accumulator section AI. 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 stack section 7 for forming a paper loop in the second accumulator section A2 and conveying the paper.

Each component will be explained in detail below.

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 gear knob G for the bar passage between it and the base 21, and during exposure, the load guide 24 is raised or When the load guide 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 machine fJ13 includes, for example, cut filters (three primary colors of yellow, magenta, and cyan).
etc., a negative carrier 32 that holds a negative film F, a lens 33, and an electromagnetic solenoid 3.
A dark shutter 35 that opens and closes according to the operation of 4 is disposed in order from above, and a photometric element 36 is disposed around the lens 33 for detecting the light transmitted through the film and controlling the selection of a cut filter and the operation of the dark shutter 35. It is being 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 has four feeding rollers disposed facing the inlet 12 and a pressure roller 42, and the feeding roller 41 is rotated clockwise by a motor 43 having a built-in overrunning clutch. Furthermore, the pressure roller 42 is configured to be switchable between a rest position in which it is spaced above the feed roller 41 and an operating position in which it is pressed by the feed roller 41 by a link mechanism and a lever 44 (not shown). ing.

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 section 46 can be inserted into the main body 1 from the entrance 12, 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 AI is located outside the paper path PA, and paper is introduced into the accumulator section A1 by opening the movable guide section 5.

A11 is a loop detection sensor for detecting a paper loop formed in the first accumulator section AI.

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 attached 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.

Further, the shaft 52 has a pinion gear 54 fixed thereto.
and is connected to be rotationally driven by an electromagnetic solenoid 56 via a rank gear 55 that meshes with the binion gear 54.

In FIG. 1, R1 is a guide roller, and 60 is a turn guide consisting of a large number of rollers, whereby the paper transferred from the first accumulator section At is bent horizontally and supplied to the exposure section 2.

The paper feeding section 6 is provided at a downstream position close to the exposure section 2. The cough paper feed section 6 includes a main feed roller 61 and a pressure roller 6 that are arranged opposite to each other in the paper path PB.
2, the cough main feed roller 61 is intermittently rotationally driven in the forward or reverse direction by a pulse motor 63,
It has the function of regulating the paper transport speed and transport distance associated with exposure processing. 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 ml path PB and is formed below the paper discharge section 7, which will be described later. In this second accumulator section A2, at least one order of negative film 1 is stored.
It has an internal space large enough to store papers having a number of printed screens corresponding to the number of frames, for example 24 or 36. A21 is a loop detection sensor for detecting a paper loop formed in the second accumulator section A2.

As shown in an enlarged view in FIG. 3, the paper discharge section 7 includes two mechanisms, namely, a loop guide mechanism 8 for smoothly forming a paper loop in the second accumulator section A2 and transporting the paper loop; It is comprised of a conveyance mechanism 9 for conveying paper out of the main body 1 through an 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
A cam roller 7 is provided on the base end side of the mounting board 82 and is driven in accordance with the rotation of a cam 7, 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 bring the guide plate 51 into the closed position B (shape B indicated by the two-dot chain line in the figure), and the The lifting 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 (initial state) separated from the paper path PB. That is, when the cam 71 is rotated counterclockwise by reversing the motor 72, its large diameter portion is rotated by the cam rollers 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 pressure roller 42 and the feeding roller 41 are in a state where the paper Q is pressed between 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 feeding roller 41 and the pressure roller 42 are rotated by the drive of the motor 43 in the paper feeding section 4, and the paper sent out thereby passes through the movable guide section 5, the guide roller R1, the turn guide 60, and the exposure section 2. The paper is then conveyed to the paper feeding section 6, and the main feeding roller 61
The paper that has not reached this point is further conveyed by the rotation of this main feed roller 61, and is then transferred to the turn roller R2 and the hole punch section 1.
0 and 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.

During 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 reaches the main feed roller 61. After that, it is conveyed in synchronization with the circumferential speed of the main feed roller 61,
At this time, the feed roller 4 overruns in accordance with the rotational speed of the main feed roller 61 by 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 that is reversely transported is accumulated in a loop shape in the first achievator 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. This completes automatic paper loading.

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 standardize the image. Light conditions are determined.

The opening and closing of the cant filter and the dark shafter 35 in the light source 31 are then controlled according to this light marking 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, as the amount of accumulated paper decreases as the exposure process progresses, the tip of the paper loop rises and the loop detection sensor A, 11 detects the shrinkage of the loop. Motor 4 in
3 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.

On the paper that has undergone the exposure process, holes are punched at specific positions in the hole punch section 10 based on information input in advance according to the size and style of the printing screen. This punch hole is used as a cut position indication mark for automatically cutting the paper screen by screen after the subsequent development and drying process, or as a cant position indication mark in forced cutting to be described later. The paper is further conveyed by the main feed roller 61, passes through the force/taper section 20 and the hole detection sensor 30, and then reaches the paper discharge section 7.
will be transferred to.

The paper that has been guided by the paper guides 70a and 70b and has reached the paper introduction side of the second accumulator section A2 crosses the upper space of the second accumulator section A2, as shown by the two-dot chain line in FIG. The paper is transported while being guided by 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. , 74
b, and will not fall into the second accumulator section A2. Then, at the point in time when the tip Of& 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 paper on the plate in the second accumulator section A2 is accumulated, 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 regulation roller 85 rotates counterclockwise as the paper is transferred, and the entrapment prevention roller 86 is connected to the regulation roller 85 by a gear, so that it rotates clockwise in conjunction with this. Become. In this manner, by rotating the entrainment prevention roller 86 clockwise, paper conveyance abnormalities are prevented. That is, for example, as shown in FIG.
In a case where an overlapping portion J occurs in the paper portion to be conveyed, when the entrainment prevention roller 86 rotates clockwise, this overlapping portion J is rejected in a direction away from the paper portion to be conveyed, and as a result, The overlapping sheets of paper do not get caught between the guide roller R4 and the regulating roller 85, and smooth paper conveyance can be achieved.
The paper accumulated in the second Akiemulator section A2 is discharged from the main body 1 through the outlet 13 as described above, and is continuously supplied to an automatic developing device (not shown) at a constant speed corresponding to its processing speed. . In other words, in an automatic developing device, it is generally necessary to carry and develop the exposed paper at a specific, constant speed required for the prescribed development, but normally, the exposure processing in an automatic photo printing device is The speed is higher than the development processing speed in an automatic developing device.

Therefore, a second accumulator @
By providing A2 and storing exposed paper therein, development processing can be performed without stopping. In this way, the second accumulator section A2 not only prevents excessive tension from being applied to the paper during ejection, but also functions as a storage for exposed 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 8-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 automatically disconnects (hereinafter referred to as “
"Forced cut." ) is done.

Specifically, this forced cut is performed as follows. When the loop detection sensor A21 detects the contraction of the paper loop in the second accumulator section A2, the pulse motor 63 of the tepaver feed section 6 is reversed to transport the paper back to 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). If they overlap, they are performed after these other operations are completed. 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 the next exposure can be performed without any paper loss. can be done.

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. Then, 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 180 degrees counterclockwise. 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. Thereafter, the paper is conveyed in the paper discharge section 7 by the same operation as described in the case of paper loading.

By the way, until the return to the initial state is completed after the forced cut described above, the next paper is not transferred to the paper discharge section 7.
cannot be transported to Therefore, the longer the time required during this period, the lower the processing efficiency will be, which is undesirable.

Therefore, in order to alleviate such inconvenience, when discharging the forcibly cut paper, the rotational speed of the motor 72 is automatically controlled so that the transport speed is sufficiently higher than the processing speed of the automatic developing device. and fast-forwards the paper. This makes it possible to shorten the time loss from, for example, several tens of seconds to several seconds. Further, the rapidly fed paper may be stored in a paper aginimulator 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, the printing device and the developing device are separate units. Although the present invention is not limited to this, the present invention is also applicable to, for example, an automatic printing and developing device in which a printing section and a developing section are integrated. It is only necessary to provide a transport means having the same capabilities as the transport mechanism in the above-described embodiment at an appropriate position between the second accumulator section and the developing section.

(Effects of the Invention) As described above, according to the automatic photoprinting apparatus of the present invention, an inlet-side paper passage and an ejection-side paper passage are arranged on both sides of the optical path region from the exposure mechanism to the exposure section, and these paper Since the accumulator section and other elements are provided along the path, the space around the optical path area can be used effectively, making it possible to effectively downsize the device.

[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. 1...Body 11...Case 12.
...Inlet 13...Outlet A1...First accumulator section All...Loop detection sensor A2...Second accumulator section A21...Loop detection sensor 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 shutter 36... Photometric element L... Optical path area 4... Paper feeding section 41... Feeding roller 4
2... Pressure roller 40... Magazine 45
...Box body 46...Paper drawer part 5
...Movable guide part 51...Guide plate 54.
...Binion gear 55...Rack gear 6...
・Paper feed section 61...Main feed roller 62・
...Crimping roller 63...Pulsmoke 70
a, 70b...Paper guide 701.702...Circular guide part 7...Paper discharge part Day...Loop guide mechanism 9...Transportation mechanism R4...Guide roller R5...Loop formation Roller 82...Mounting board 8
5... Regulation roller 8G... Entrainment prevention roller 87... Cam roller 91... Discharge roller 92... Pressure roller 94... Mounting board 95... Cam roller 71... Cam 72...
...Motor 10...Hole punch part 20...Cutter part 30...Hole detection sensor Agent Patent attorney Tadashi Oi Hajime Maro'9

Claims (1)

[Scope of Claims] 1) (a) an exposure section that projects a light image to be printed and prints it onto photographic paper; (b) an exposure mechanism that projects a light image corresponding to a negative film onto the exposure section; (c ) a paper feeding section that supplies unprocessed photographic paper to the exposure section;
and (d) a paper discharge section for transporting the exposed photographic paper transferred from the exposure section to the development section. An automatic photographic printing apparatus characterized in that discharge side paper passages connecting the two are formed on both sides of an optical path region extending from an exposure mechanism to an exposure section.