JPS6276414A - Recorder - Google Patents

Abstract

PURPOSE:To use common recording paper and to simplify the recording paper and to reduce its cost by providing a reflection type optical sensor at the upper part of a recording paper storage box and detecting a fold in the back direction of the delivered recording paper. CONSTITUTION:When the recording paper 2 is delivered in the front direction, the uppermost part of the recording paper 2 is raised upward and brought into contact with the upper plate 1a and the reflection type optical sensor 6 detects the recording paper 2 and output is made ON (1). Then, when the recording paper 2 is further delivered and the fold 2 passes through the reflection type optical sensor 6 in the front direction from the back direction, the output is made from ON to OFF (1 0) and at this time, the fold 2a is detected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recorder using folded recording paper.

[Prior Art] In a recorder using a recreational folding recorder, the recording quality can be improved by detecting the crease and excluding the recording at this part, and the damage to the recording head caused by the crease can be reduced. can be achieved.

Conventionally, in order to detect the fold position, holes or marks were made in advance on the edges of the recording paper, and these were detected using various optical sensors.

[Problems to be Solved by the Invention] For this reason, it is necessary to process the recording paper in advance, which is complicated.Furthermore, with ordinary recording paper, there are problems such as the inability to detect folds.

In view of the above points, it is an object of the present invention to provide a recording apparatus that can detect folds without making any special modifications to recording paper.

[Means for Solving the Problems] The present invention is a recording apparatus in which a reflective optical sensor is provided at the top of a recording paper storage box to detect folds in the back direction of the recording paper being fed out. - [Embodiment] FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention.

In the figure, reference numeral 1 denotes a recording paper storage box in which unrecorded folded recording paper 2 is stored. This recording paper storage box 1
The recording paper 2 pulled out from the opening at one end is fed forward by rotating the roller 3, passing between guide rollers 4a and 4b, and is recorded by the recording head 5 at a recording position It5a. Further, a reflective optical sensor 6 for detecting folds (perforations) of the recording paper 2 is provided at a predetermined position on the upper plate 1a at the top of the recording paper storage box 1.

In other words, when the recording paper 2 is stored in the front-back direction of the recording paper storage box 1, a fold in the forward direction (perforation>2a) and a fold in the forward direction (perforation) 2b are created. When the recording paper 2 is brought up to 3 and fed out in the forward direction, the fold line 2a in the back direction of the recording paper 2 moves from the rear to the front while contacting the upper plate 14- as shown in FIG.

In other words, as shown in Figure 2(a), in the initial state,
Since the recording paper 2 is located at the bottom and the fold line 2a in the back direction is also located at the bottom, the reflected light from the reflective optical sensor 6 is not obtained, and its output is 0FF (0).

Next, as shown in FIG. 2(b), when the recording paper 2 is fed out in the forward direction, the top of the recording paper 2 is lifted upward and comes into contact with the upper plate 1a, and the reflective optical sensor 6 detects the recording paper. 2 is detected, and the output becomes ○\(1).

Then, as shown in FIG. 2(C), the recording paper 2 is roughly fed out, and the fold line 2a is unrolled! l) When passing through the type 1 optical sensor 6 from the back to the front, its output changes from ON to O.
FF <1→O), and at this time, the crease 2a is detected.

After that, as shown in FIG. 2(d), the fold 2a is
It moves further forward, and the output of the non-conforming optical sensor 6 becomes O.
FF (○).

Hereafter, the same operation is repeated.

In this manner, when the fold line 2a passes through the reflective optical sensor 6 from the rear to the front while contacting the upper plate 1a, the reflected light disappears and the position of the fold line 2a of the recording paper 2 is detected.

By the way, since the roller 3 is driven by a pulse motor (not shown), the position of the fold line 2a and the recording position 5a are
The length of the recording paper is converted into the number of drive pulses, and the point at which the fold 2a passes the reflective optical sensor 6 is the origin, and it is possible to know when the fold 2a reaches the recording (recording device 5a), and the recording head 5 In addition, it is possible to avoid recording on the fold line due to the fold line 2b.
Since the length of the fold line is also known, by converting this length into a drive pulse, it is possible to know when the fold line 2b reaches the recording position 5a, and it is possible to avoid recording with the fold line as well.

Furthermore, if the above operation is performed every time the recording paper 2 is fed and the reflective optical sensor 6 sequentially detects a series of folds 2a, consistent recording is possible without accumulating errors.

Further, if the number of folded sheets of the recording paper 2 is known in advance, the number of folds 2a of the recording paper 2 detected can be determined from the number of folds of the recording paper 2.
You can also know the remaining m of 2.

[Effects of the Invention] As described above, the present invention uses an optical sensor to detect the crease position without making any holes or markings on the recording paper. This makes it possible to simplify the recording paper and make it double-sided.Furthermore, by avoiding creases, the printed results are easy to see, and the recording head is not damaged by the creases, resulting in a longer service life.

[Brief explanation of drawings]

FIGS. 1 and 2 are explanatory diagrams showing one embodiment of the present invention. 1... Recording paper storage box, 2... Recording paper, 2a, 2b
... Fold line, 3... Roller, 4a, 4b... Guide roller, 5... Recording head, 5a... Recording position,
6... Reflective optical sensor

Claims (1)

[Claims] 1. A recording paper storage box that stores folded recording paper, a roller that pulls out the recording paper from an opening at one end of the recording paper storage box and feeds it forward, and a roller provided at the top of the recording paper storage box that allows the recording paper to be fed out in the back direction. A recording device comprising: a reflective optical sensor for detecting folds of the paper.