JPS6292872A - recording device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording apparatus, and more particularly to a recording apparatus equipped with an automatic paper feeder.

[Prior Art] Many recent recording devices are equipped with an automatic paper feeder.

The functions of this automatic paper feeder are as follows:
This is a series of operations that automatically feeds the recording paper, raises the paper presser (paper bail), and presses down the head of the paper when the recording paper reaches a predetermined position.

[Problems to be Solved by the Invention] Incidentally, in such an automatic paper feeding device, paper feeding is performed until the recording paper reaches the paper presser, so the print start line after automatic paper feeding inevitably reaches the upper limit. exists,
It was restricted.

Therefore, if the operator wants to print on the first line of the recording paper, he must manually reverse the platen, release the recording paper from the paper holder, and then print.

However, if you start recording with the paper presser released from the paper presser and continue to line feed the paper, the leading edge of the paper will hit the paper veil, making it difficult to record smoothly. .

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides means for setting the amount of line feed to the recording start position of the recording paper, and detecting the amount of line feet by an automatic paper feeder. The paper presser is configured to separate the paper presser from the platen when the recording paper has not reached the position of the paper presser, and to press the paper presser against the platen when the recording paper reaches the position of the paper presser. .

[Operation] If the above-described structure is adopted, the position of the paper presser can be controlled according to the recording start line, and the inconvenience of restricting the movement of the recording paper will not occur.

[Embodiments] Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

[First Embodiment] FIGS. 1 to 7iTJG illustrate a first embodiment of the present invention, and FIG. 1 shows a schematic configuration of the entire recording apparatus.

In the figure, reference numeral 1 indicates a keyboard, and keystrokes from this keyboard are sent to the CPU 4a in the main body 4 of the apparatus.

CPU4a is ROM (read only memory) and RA
Performs arithmetic processing based on the data stored in M (random access memory) 4b and 4c, and displays the display 2.
It is possible to perform recording processing according to the contents of the printer processing section 4d by displaying the information on the printer processing section 4d, operating the cam drive motor 3, which will be described later.

Further, as shown in FIG. 2, the CPU 4a, which is the main control section, is connected with a line feed amount setting section 5 and a line feed counter 6 during automatic paper feeding, and performs operations as described later.

Specifically, as shown in FIG. 3, the line feed amount setting unit 5 has a storage area 7 in RAM 4C, and the line counter 6 also has a storage area 7 in RAM 4C. It has a storage area as shown by reference numeral 8 in the figure.

On the other hand, the paper presser (paper veil) is shown in Figures 4 and 5.
The drive mechanism is shown.

In both figures, the reference numeral 9 indicates a cam, and this cam is fixed to the output shaft of the motor 10.

On the other hand, the one indicated by numeral 11 is a paper presser, and both ends of the paper presser are attached to arms 1.
It is rotatably supported on one end of 2.

The other end of the arm 12 is rotatably supported on the upper end of the link 13.

Further, a long hole 12a is formed in the middle of the arm 12,
A pin 14 protruding from a side plate (not shown) is slidably fitted into the elongated hole 12a.

The lower end of the link 13 is fixed to a shaft 15 rotatably supported on a side plate, etc., and a cam lever 16 is attached to the shaft 15.
One end of the cam lever 16 is fixed, and the other end of the cam lever 16 is in contact with the circumferential surface of the cam 9.

The reference numeral 17 indicates a platen.

Since the drive mechanism of the paper presser is configured as described above, when the tip of the cam lever 16 is in contact with the rectangular cam surface of the cam 9, the weight of the paper presser 11, arm 12, link 13, cam lever 16, etc. (or by the tensile force of a spring not shown) cam lever 16, link 13
is rotated clockwise in FIG. 4, the arm 12 is pulled toward the cam 9, and the paper presser 11 comes into contact with the platen 17.

When the tip of the cam lever 16 comes into contact with the circumferential surface of the longer diameter side of the cam 9, the paper presser 11 separates from the platen 17, contrary to the above description.

Based on the structure described above, the following control is performed in this embodiment.

That is, in this embodiment, the setting value [A
In the case of LF-MEM column = 6 (row), the fed recording paper (not shown) reaches the position of the paper presser 11 and the motor 10 is activated so that it is sandwiched between the paper presser 11 and the platen 17. The cam 9 is controlled via the cam 9.

In addition, if the set value [ALF-MEM] <6, the recording paper does not reach the position of the paper presser 11, so the cam 9 is rotated so that the circumferential surface on the longer diameter side contacts the tip of the cam lever 16. , release the paper presser 11 from the platen 17,
The paper presser is controlled to facilitate the passage of the recording paper and lower the paper presser after the recording paper passes under the paper presser.

That is, the timing when the recording paper reaches the paper presser foot 11 is [ALF-M
EM] and the count value of counter 6 that counts the amount of line feed after recording has started [L
Calculated by the value of F-CTI, [ALF-MEM]
+ When [LF-CT]=6, a command to lower the paper presser is issued.

Next, details of the control operation will be explained with reference to flowchart 8 shown in FIGS. 6(A) and 6(B).

FIG. 6(A) shows the control operation of the paper presser 11, and FIG.
B) shows the control operation of the line feed counter.

As shown in FIG. 6(A), the control operation of the paper presser foot 11 is started, and at the same time, the operator first manually sets the printing start line by pressing the key (it does not have to be set every time).
and its setting value [A L F -MEM] is RAM
4c is stored in the storage area 7, and paper feeding is started.

Subsequently, in step S1 [A L F -MEM
It is determined whether the value of C + [LF-CTI has reached 6 or not, and if it has reached the value, the paper presser 1 is
1 and sandwich the fed recording paper between it and the platen 17.

Note that the line feed counter is provided on the platen 17 side and counts the step feed of the platen 17.

On the other hand, in step S1 [A L F -MEM]
+ [If the value of LF-CTI has not reached 6, the routine moves to the routine shown in FIG. In step S4, the line feed counter is counted up, and as shown in FIG.
) Return to the routine shown in ).

The same applies when it is determined in step S3 that line feed is not performed.

By performing the above-described operation, the paper presser 11
This allows for smooth paper feeding without interfering with recording paper feeding.

[Second Embodiment] In the above-described embodiment, we focused on the line feed in the forward direction of the recording paper, and considered only the case where the line feed counter was counted up each time a line feed was performed. Sometimes it is sent backwards.

In such a case, control as shown in FIGS. 7(A) and 7(B) may be performed.

That is, as shown in FIG. 7(A), the paper feed flag [FB-
FLGI is provided, and this flag is set to ON when the paper presser is lowered, and set to OFF when it is raised.

Then, in step Tl, [PB-FLGI is O
If N, proceed to step T2, CALF-MEM]
+[It is determined whether the LF-CTI is smaller than 5,
If it is smaller, the process proceeds to step T3, where the paper presser is raised and the paper is fed in this state. If it is greater than 5, the process proceeds to step T4, which will be described later.

Further, if [FB-FLGI is OFF, the process advances to step T4, and [AL F-MEM] + [LF-C
It is determined whether TI is 6 or more. If TI is 6 or more, the process proceeds to step T5 and the paper presser is lowered. If TI has not reached 6, the process returns to step T2.

On the other hand, the line feed counter is controlled as shown in FIG. 7(B).

That is, when paper feeding is started, it is determined in step T6 whether or not a line feed (in the forward direction) has been performed. If line feed has been performed, a line feed counter is incremented in step T7, and step At T8, the process returns to the routine shown in FIG. 7(A).

Further, if it is determined in step T6 that line feeding in the forward direction has not been performed, step T9
It is determined whether or not reverse feeding has been performed. If reverse feeding has been performed, the line feed counter is counted down in step TIO, and the process advances to step T8.

If it is determined in step T9 that reverse feeding is not performed, the process returns to the routine shown in FIG. 7(A).

By configuring the apparatus to perform such control, the paper presser can be controlled more broadly, including line feeding in both forward and reverse directions, and paper can be fed smoothly.

E Effect] As is clear from the above description, according to the present invention, in a recording apparatus that feeds paper using an automatic paper feeder, the recording start position for the recording paper is manually set using a key, and the setting value is set by the paper presser. The paper presser is moved up and down depending on whether the position has been reached, so that the paper presser does not interfere with the movement of the recording paper during line feeding, and smooth paper feeding can be achieved.

[Brief explanation of drawings]

1 to 6 illustrate a first embodiment of the present invention, in which FIG. 1 is a schematic configuration diagram of the entire recording apparatus, FIG. 2 is a block diagram illustrating the main parts, and FIG. Explanatory diagram of storage area for storing line feed amount and line counter value, 4th
and FIG. 5 are side and front views of the paper presser drive mechanism, FIGS. 6(A) and (B) are flowcharts explaining the control operation of the paper presser and line feed counter, and FIG. 7(A), (B) is a flowchart illustrating the second embodiment of the present invention, and shows the control operation of the paper presser and line feed counter when the recording paper is line fed in the forward and reverse directions. ■...Control device 2...Display 3...
・Printer 4...Recording device 5...Line feed amount setting unit 6...Line counter 9...Recording paper 10...Paper presser 11...Platen work ~ O-fu- 1!7 Silence - Zuguchi, +7m Figure 2 Paper pressing five motions Isoyori - Soba n Figure 4 Eikishin, Kanhan Ki/Sei, Front - iψ to political line n Vushiq - size (Kamikata) (rIzud-11-H button Figure 6

Claims (1)

[Claims] In a recording apparatus equipped with an automatic paper feeder and a paper holding means for paper, a means for setting a line feed amount of the paper to a recording start position, and a means for detecting the line feed amount by the automatic paper feeder. If the recording paper does not reach the position of the paper presser, move the paper presser away from the platen.
A recording apparatus characterized in that the paper presser is configured to press the paper presser against the platen when the recording paper reaches the position of the paper presser.