JPH0876336A - Concentration measuring unit and its mounting structure - Google Patents

Abstract

PURPOSE: To retreat a density measuring unit from the attaching/detaching operation area of a carrying part in the case of opening a processing part. CONSTITUTION: When the carrying part 54 is opened, the density measuring unit 50 is rotated around a shaft until a plate piece abuts on a stopper. Thus, the density measuring unit 50 is positioned on the upper plate of a drying part 52 and retreated from the opening locus of the carrying part 54. Therefore, the carrying part 54 is opened with center at a hinge 56. Then, lifting weight is reduced by an amount equal to the weight of the unit 50 and maintenance is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a density measuring unit for measuring print density and a mounting structure for the density measuring unit.

[0002]

2. Description of the Related Art A printer processor is provided with a densitometer for measuring the density of a print processed in a processing tank in order to manage maintenance of printing conditions. This densitometer is integrally assembled to the discharge port of the drying processing section so that the density of the print can be measured in a series of printing processes. The drying processing unit has a structure that can be attached to and detached from the printer processor for maintenance of the rack arranged in the processing tank.

Therefore, at the time of maintenance, the densitometer may break down due to an impact when the dry processing section is removed, and the densitometer must be lifted together with the dry processing section.
The increased weight hindered maintenance work.

Further, since the conventional densitometer can be used in a series of printing processes, it is not very convenient.

[0005]

In consideration of the above facts, the present invention takes the above-mentioned facts into consideration. When removing the drying processing section, the concentration measuring unit is retracted from the attachment / detachment work area of the drying processing section, and the density of the print is manually changed. The purpose is to be able to measure.

[0006]

A density measuring unit according to claim 1 is incorporated in a density measuring unit attached to a printer processor from a path different from a transfer path of a print transferred from the printer processor. The feature is that a hand-feeding mechanism that can hand-feed prints is provided so as to correspond to the densitometer.

According to a second aspect of the present invention, in the mounting structure of the concentration measuring unit, the printer processor is such that a drying processing unit for drying the print processed in the processing tank and discharging it to the outside of the machine is detachable from the processing tank. In the mounting structure of the concentration measuring unit to be attached to, the concentration measuring unit is pivotally supported by the printer processor so as to be retractable from the attachment / detachment work area of the drying processing unit.

[0008]

The density measuring unit according to the first aspect is mounted on the printer processor and measures the density of the print conveyed from the printer processor by the built-in density meter.

The density measuring unit is provided with a hand feeding mechanism, and the print to be measured can be manually fed from a path different from the path of the print to be conveyed so as to face the densitometer. . Therefore, the densitometer can be used independently from the processing steps of the printer processor.

In the mounting structure of the concentration measuring unit according to the second aspect, the concentration measuring unit is rotatably supported by the printer processor in which the drying processing section is attachable to and detachable from the processing tank.

Therefore, when the drying processing section is removed, the concentration measuring unit is swiveled and retracted from the attachment / detachment work area of the drying processing section so that the built-in concentration meter will not be impacted and the weight to be lifted will be increased. Maintenance work becomes easier because the number of concentration measurement units is reduced.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 6 and 7 show the outline of a printer processor 10 in which a density measuring unit 50 according to this embodiment is adopted. (Schematic Description of Printer Processor) The photo printing unit 12 constituting the printer unit of the printer processor 10 has a structure in which a paper magazine 14 in which photographic printing paper P is stored can be loaded. The photographic printing paper P sent out from the paper magazine 14 is cut into a desired length by the cutter 16, and then placed on the suction belt 18 and stopped to be conveyed on the optical axis S of the exposure light beam.

A large number of small holes are formed in the suction belt 18 over the entire area, and a suction force for sucking the printing paper P from the suction fan 22 is applied through the small holes formed on the upper surface of the duct 20. It is supposed to be done.

The casing 10 of the printer processor 10
On the upper surface of A, a light source box 26 in which a light source 24 is arranged
Is provided. The side wall of the light source box 26 is opened, and the diffusion box 28 is inserted into this opening.
A mirror and a diffusing plate are provided in the diffusing box 28 so that the light amount of the light source 24 is large at the exit and is flat.

At the bent portion of the diffusion box 28,
The light rays of the light source whose color tone is adjusted by the three sets of CC filters 30 arranged in the light source box 26 are bent from the horizontal direction to the vertical direction.

The light beam bent in the vertical direction passes through the negative film N set on the negative carrier 32 placed on the casing 10A and becomes an exposure light beam. The exposure light beam passes through the exposure lens unit 34 and forms an image of the negative film N on the photographic printing paper P arranged in the lower area.

Here, the photographic paper P on which the black shutter 35 has been opened and the image printing has been completed is guided by the guide roller 3
6 and the pressing roller 38, the conveyance path 40
And is conveyed to a processing tank 42 where each processing of development, bleach-fixing, and washing with water is performed.

Finally, the photographic printing paper P, which has been washed with water in the washing tank, is conveyed to the drying processing section 44 disposed above. The photographic printing paper P that has been subjected to the drying processing in the drying processing section 44 is discharged to the outside of the machine through the discharging path 48 or the density measuring unit 50 through the conveying path 46 provided with the conveying direction switching mechanism.

The drying processing section 44 is divided into a drying section 52 and a conveying section 54 in a plan view. The drying unit 52 is installed on the printer processor 10 side,
The transfer section 54 can be opened and closed with respect to the processing bath 42 by a hinge 56 (see FIG. 5). (Concentration Measuring Unit) As shown in FIGS. 1 and 2, main components of the concentration measuring unit 50 are housed in a housing 58, and a base plate 60 is arranged at the lower end of the housing 58. . At the end of the base plate 60, the opening 6 formed in the upper plate 52A that covers the drying unit 52 is formed.
Cylindrical body 6 protruding from 2 and entering the housing 58
The base end of 4 is fixed.

A shaft 66 is inserted through the cylindrical body 64. The lower end of the shaft 66 is inserted into a socket 68 attached to the side wall of the printer processor 10 via a bracket 67, and is fixed by a screw 70 so as not to rotate. At the top of this socket 68, the ring 7
2 is arranged to support the lower end of the cylindrical body 64. As a result, the base plate 60 is adapted to rotate integrally with the cylindrical body 64 around the shaft 66.

A plate piece 74 projects horizontally from the lower end of the cylindrical body 64. This plate piece 74 abuts on a stopper 76 standing on the bracket 67,
As shown in FIG. 4, the cylindrical body 6 is moved to a position retracted above the drying unit 52 from the state in which the concentration measuring unit 50 is set.
The turning range of 4 is restricted. The concentration measuring unit 50 is set in the magnet 1
It is fixed at 18, 120.

As shown in FIG. 1, the upper plate 54 of the transport unit 54
A slit 80 is formed in A. The photographic printing paper P that has been dried is transported to the slit 80 in the direction of the arrow A by the transport roller 82 arranged at the most downstream side of the transport unit 54, and further, the slit 84 formed in the base plate 60 (see FIG. 2). (Refer to FIG. 4), and is sent into the concentration measuring unit 50.

The printing paper P sent into the density measuring unit 50 is nipped and conveyed by the roller 86 and the skewer roller 88, further nipped and conveyed by the roller 90 and the skewer roller 92, and discharged from the slit 94 to the outside. It A gear 96 is attached to the left shaft end of the roller 86, and a gear 98 is attached to the left shaft end of the roller 90.
They are attached to each other, and the driving force is transmitted from the motor 102 via the driving force transmission mechanism 100.

A drive gear 104 is arranged at the right shaft end of the roller 86 and meshes with a driven gear 106 arranged at the right shaft end of the skewer roller 88. Further, the drive gear 108 is arranged at the right shaft end of the roller 90, and the driven gear 110 arranged at the right shaft end of the skewer roller 92.
Is meshing with. A boss portion of a knob 112 arranged outside the housing 58 is connected to a shaft portion of the drive gear 108, so that the roller 90 can be manually rotated from outside the concentration measuring unit 50.

The nip member 114 is provided at the shaft ends of the roller 86 and the skewer roller 88, and the roller 90 and the skewer roller 92.
Is provided, and the nip force is applied in the direction in which the roller surface is in close contact.

On the other hand, between the roller 86 and the roller 90,
A cradle 122 is provided. A densitometer 116 is arranged so as to face the pedestal 122 so that the density of the printing paper P can be measured. A hinge (not shown) is formed at the end of the densitometer 116, and the housing 5 is tilted.
It is possible to go in and out of the opening 124 formed in the upper surface of the No. 8.

Next, the operation of the concentration measuring unit according to this embodiment will be described. As shown in FIGS. 3 and 4, when measuring the density of the printing paper P transported from the printer processor 10, the density measuring unit 50 is set so as to straddle the transport unit 54. At this time, the magnet 118
The magnet 120 is fixed so as not to wobble.

Here, as shown in FIGS. 1 and 2, the photographic printing paper P which has been dried by the conveying roller 82 is indicated by an arrow A.
Is conveyed in a direction, passes through the slits 80 and 84, is sandwiched and conveyed by the roller 86 and the skewer roller 88, is positioned on the receiving table 122, and the concentration of the densitometer 116 is measured. The photographic printing paper P whose density has been measured is nipped and conveyed by the roller 90 and the skewer roller 92, and discharged from the slit 94 to the outside.

On the other hand, when the density measuring unit 50 is used alone, the photographic paper P1 is inserted through the slit 94 and the knob 112 is rotated counterclockwise while being sandwiched between the roller 90 and the skewer roller 92, and the pedestal 122 is used. Sent to the top of
The leading end of the photographic printing paper P1 in the insertion direction is the roller 86 and the skewer roller 8.
Hold it between 8 and. At this time, if the densitometer 116 is rotated so that the photographic paper P1 can be seen through the opening 124 of the housing 58, the alignment can be facilitated. next,
The densitometer 116 and the printing paper P1 are made to face each other, and the density is measured.

Further, when performing maintenance of the processing tank 42, as shown in FIG. 4, the concentration measuring unit 50 is rotated around the shaft 66 until the plate piece 74 hits the stopper 76. As a result, the concentration measuring unit 50 is located on the upper plate 52A of the drying unit 52 and retracts from the open locus of the transport unit 54. Therefore, as shown in FIG.
The transport unit 54 can be opened around the hinge 56.

At this time, since the concentration measuring unit 50 is separated from the opened transporting section 54, the weight to be lifted is reduced by the amount of the concentration measuring unit 50, and the maintenance becomes easy.

[0032]

Since the present invention has the above-mentioned structure, the concentration measuring unit can be evacuated from the attachment / detachment work area of the drying processing section when the drying processing section is removed. In addition, the print density can be manually measured independently.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a main part of a concentration measuring unit according to the present embodiment.

FIG. 2 is a cross-sectional view of a concentration measuring unit according to the present embodiment.

FIG. 3 is a perspective view showing a turning motion of the concentration measuring unit according to the present embodiment.

FIG. 4 is a perspective view showing a swirling motion of the concentration measuring unit according to the present embodiment.

FIG. 5 is a perspective view showing a state in which a conveyance section of the printer processor provided with the density measuring unit according to the present embodiment is opened.

FIG. 6 is a schematic diagram showing an overall configuration of a printer processor.

FIG. 7 is an overall perspective view of a printer processor.

[Explanation of symbols]

 50 Concentration measurement unit 64 Cylindrical body 66 Shaft 112 Knob (hand feed mechanism)

Claims (2)

[Claims] 1. A density-measuring unit attached to a printer processor, which is capable of manually feeding a print from a path different from a transportation path of a print transported from the printer processor so as to correspond to a built-in densitometer. A concentration measuring unit characterized by being provided. 2. A mounting structure of a concentration measuring unit, wherein a drying processing section for drying a print processed in a processing tank and discharging it to the outside of the machine is attached to a printer processor detachable from the processing tank, A mounting structure for the concentration measuring unit, wherein the concentration measuring unit is axially supported by the printer processor so as to be retractable from the attachment / detachment work area of the drying processing unit.