JPS5829468Y2 - Photographic print inspection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a photographic print inspection device that allows an inspector to visually judge the quality of printed photographic paper while automatically feeding the rolled photographic paper.

Conventionally, this type of photographic print inspection equipment is known as:
In this method, the roll of photographic paper to be inspected was not stopped during the inspection, but the inspection was carried out while the print frames to be judged were successively passing through the inspector's visual field.

Therefore, the examiner has to stare at a constantly moving image for a long time, resulting in eye fatigue and the accuracy of the test results.

The first purpose of the present invention is to eliminate such drawbacks and to provide a photographic print inspection device that can judge the quality of prints in a stationary state. The continuous inspection of rolls of photographic paper that have been printed one after the other is done in sequence, and since each customer has different photographing conditions and image quality, we can inspect photos with high inspection accuracy in sections for each customer. The object of the present invention is to provide a print inspection device, and the present invention will be described in detail below with reference to illustrated embodiments.

1. A horizontally long base having a feed-out shaft 2 driven at high speed by a motor 2' at one end and a winding shaft 3 driven at high speed by a motor J at the other end. A presentation section 4 is provided on the front surface of the base 1 for displaying several frames of prints to be inspected at one time.
Display elements 4' such as light emitting diodes are provided at the upper edge of the presentation section 4 at intervals between the frames, corresponding to the stop positions of each frame,
On the other hand, guide rollers 5 and 6 are pivotally supported on both sides of the presentation section 4.

7 is the winding shaft 3 and the guide roller 6 on the winding shaft 3 side.
A drive roller is pivotally supported on a base part 1 at an intermediate position, and the drive roller 7 is driven at high speed by a motor T' serving as its drive source, and can be moved toward and away from the drive roller 8 by a lever 8. A pinch roller 9 that is pressed against the drive roller T is provided as a pinch roller.

Reference numerals 10 and 11 denote photoelectric detecting sections provided at appropriate locations on the passage of the roll of photographic paper, for example, at the thin edge and lower edge of the presentation section 4; The detection section 11 is for reading cut marks C provided on the upper edge of the rolled photographic paper P for each frame of the rolled photographic paper P, and the other detecting section 11 is for reading the cut marks C provided at the upper edge of the rolled photographic paper P for each frame. This is to detect the sort mark S provided each time the customer changes.

On the other hand, 12 detects the motors 2', 3', ? according to the detection results of the detection units io, i1. ' is a control circuit for controlling the operation of a drive unit 13 having a cut mark C as an element. By the way, a counter 14 that outputs an output is connected, and the counter 14 and the detection section 11 for detecting the sort mark S are connected to an OR circuit 1.
2' to the drive control circuit 15 for the drive unit 13 so that the drive unit 13 is stopped each time the detection unit 10 detects a predetermined number of cut marks C or sort marks S. This is what I did.

Further, 16 is a display control circuit for controlling lighting of the display element 4' in relation to the drive control, and 16 is a display control circuit for controlling lighting of the display element 4' in relation to the drive control,
0 detects a cut mark, a signal is sent to the display elements 4' to sequentially light up the display elements 4' in the order in which they are arranged.
It is configured to be published in

Note that 17 is a guide roller provided at an appropriate location between the feed shaft portion 2 and the guide roller 5, and 18 is a tension roller provided at an appropriate location between the 1 drive roller 7 and the winding shaft portion 3.

With this configuration, the rolled photographic paper P to be inspected is set on the feed shaft 2, and the guide roller 17, the guide roller 5, the presentation section 4, the guide roller 6, the space between the drive roller 7 and the pinch roller 9, Once a part of the leader is passed from the tension roller 18 to the winding shaft 3 and set, a start switch (not shown) is turned on, and the motors 2', 3',
The drive section 13 having element 7' is operated to drive and transport the roll of photographic paper P at high speed, and the detection section 10 detects a predetermined number of cut marks C that have been previously provided at each frame interval on the roll of photographic paper P. If detected, the counter 14 in the control circuit 12 outputs an output signal, and a stop signal is output to the drive section 13 via the OR circuit 12' and the drive control circuit 15, and the roll of photographic paper P reaches the first predetermined number of frames. The printer stops with the print to be inspected displayed on the presentation section 4 provided on the front surface of the base 1.

During this time, the display control circuit 16 receives the output signal from the detection unit 10 and lights up the display elements A one after another, and when it stops, it outputs a signal to light up all of them. ', it is notified that all the prints should be inspected, and the prints in the stopped state can be inspected with high accuracy without getting tired.

When the inspection is completed in this way, a restart signal is issued to the drive unit 13 by a timer (not shown) or manually, and each part is reset by a reset circuit (not shown). All you have to do is continue testing for the test group.

However, when we reach the end of the continuation of the print for the customer,
The detection unit 11 continues to read the sort mark S, and the control circuit 12
Then, even before the counter 14 has counted the set number, the OR circuit 1 is activated by the detection signal of the detection section 11.
A stop signal is output from the drive control circuit 15 to the drive section 13 via the drive control circuit 2'.

In this case, the display control circuit 16 turns on only the number of display elements 4' corresponding to the current number on the counter 14, so the inspector only needs to inspect this display part. At this time, the prints of other subsequent customers will not be introduced into the presentation section 4, so it is possible to simultaneously inspect prints of different image quality, for example, with eyes more accustomed to the brightness of the previous customer's prints. Inspection errors caused by judging the next customer's prints can also be prevented.

In this way, once the prints for each customer have been completed, it is sufficient to continue the inspection for each customer in the same way, and as in the past, the prints that are constantly moving are inspected without knowing the classification of each customer. This makes it possible to perform inspections with higher accuracy than in the case of conventional methods.

As is clear from the description of the above embodiments, according to the present invention, the print to be inspected is introduced into the presentation section at high speed and presented in a stopped state, and is then inspected. In addition to reducing fatigue and increasing testing accuracy, this method also opens the door to linking it to a method that allows separate testing for each customer, so it has great practical value.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a block diagram, FIG. 2 is a plan view of the device, and FIG. 3 is a partially cutaway front view of the main part. DESCRIPTION OF SYMBOLS 1... Base, 2... Feeding shaft part, 3... Winding-up shaft part, 10... Detection part, 12... Control circuit, 13...
... Drive section, 4... Presentation section, 11... Detection section.

Claims (1)

[Scope of utility model registration request] A presentation section 4 for stopping and presenting a predetermined number of frames of a roll of photographic paper is provided on the front side of a base 1 which is provided with a feeding shaft 2 and a winding shaft 3 for the roll of photographic paper to be inspected. A detection unit 10 for reading the cut mark attached to each frame of the roll of photographic paper and a detection unit 11 for detecting the sort mark provided each time the customer changes are provided at appropriate positions on the paper passage.
Furthermore, when the detection section 10 detects a predetermined number of cut marks or when the detection section 11 detects a sort mark, the operation of the first drive section 13 for high-speed feeding of the rolled photographic paper is controlled. A photographic print inspection apparatus characterized in that a control circuit 12 is provided for stopping a print to be inspected in a state in which it is presented on the presentation section 4.