JPH082031A - Printer with image reader - Google Patents

Abstract

(57) [Abstract] [Purpose] In standard form printing, to prevent misalignment of the form due to each set of the form when reading and printing form paper, and simplifying print position alignment. [Structure] A paper feeding mechanism that attaches an image reading device to a printing device and controls the paper after the reading process to return to the printing start position, thereby providing reproducibility between the reading position and the printing position. Configure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing apparatus for printing out on paper, and more particularly to paper feeding of a printing apparatus having a reading function for preprinted paper.

[0002]

2. Description of the Related Art A fixed form printing function, which prints character string data of a document editing apparatus by superimposing it on previously printed paper (fixed form paper), reads the fixed form paper with an image scanner and displays the read data. Japanese Patent Application Laid-Open No. 2-61756 proposes a method for enabling the creation of form data on the screen to simplify the creation of form data.

Further, there has been proposed a method in which a line type image sensor is provided in a printing device to read a fixed form sheet.
-353483 publication.

[0004]

However, in the conventionally proposed method, the reading of the standard form paper and the printing are separate operations. More specifically, in the former, the image scanner and the printing device are different devices, and when reading with the image scanner, an error occurs when setting the image scanner, and the same. An error occurs when the standard form paper of No. 3 is set in the printing device.

In the latter, although the image sensor is provided in the printing apparatus, reading and printing are separate operations, and the same error as in the former is inevitable.

For this reason, conventionally, there has been a problem that the character string is displaced from the printing position of the fixed form form at the time of printing.

In the conventionally proposed standard form printing, the shift at the time of printing is not sufficiently taken into consideration. Even if form data for designating a print position is created using an image etc. The print position is shifted due to the above problem, the operator has made several trial prints and performed an operation to correct the form data and adjust the print position to obtain the final printed matter, so the operation is complicated, In addition, there is an operational problem that the paper is wasted.

It is an object of the present invention to solve the above-mentioned conventional problems and provide a fixed form printing function with good operability.

[0009]

The object is to provide an image reading device in a printing device so that the fixed form paper read by the image reading device is not discharged from the printing device until the print start position of the fixed form paper is reached. It can be achieved by transporting.

[0010]

[Function] Since a series of operations from reading to printing of standard form paper is processed by the same transport system of the printing device, positional deviation at the time of paper setting is absorbed and there is no error between the form data and the paper setting. Can be provided.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in the block diagram of FIG. 2, a printing apparatus 1 with an image reading apparatus according to the present invention operates as a CPU (Central Processing Unit) 10 for controlling the printing apparatus 1 and when the printing apparatus 1 is powered on. Boot ROM (IPL) 1 that stores a program for
1, a program memory 12 for storing programs and data, a paper feed counter 13 for counting the paper length in conjunction with ON / OFF of a paper sensor 14, a print head 21 for printing print data by a wire impact method, The space mechanism 22, which moves by mounting the print head 21, the print head 21 and the space mechanism 22 are CP.
Print head controller 15 that controls according to data from U10, paper feed roller 4 that moves the paper for printing
1, 42 and the paper feed mechanism 41 for controlling the paper feed rollers 41, 42 according to the data from the CPU 10.
6, an image reader which is an image input device and reads image data for one line 3, and an image reader controller 17 which is located between the image reader 3 and the CPU bus 19 and which controls the CPU 10 to read data from the image reader 3. A printer I / F 18 for processing the processed image data and controlling data transfer with a higher-level device 4 typified by a word processor or the like for sending print data and a paper feed control command to the printing device 1, and each of the above components. It is composed of a CPU bus 19 connecting between the two.

In the printing apparatus 1 provided with the image reader 3 which is the image reading apparatus of the present embodiment, the printing section including the print head 21 and the image reading section including the image reader 3 are as shown in FIGS. The base frame 10
1 to 106, a paper feed roller 32 for feeding the paper 9,
41 and 42 and the print head 21 provided between the paper feed rollers 41 and 42 so as to be movable in the lateral direction, and a moving range of the print head 21 facing the print head 21. An image sensor 31 which is located between the platen 23 having a size including the paper feed rollers 32 and 41, has a length sufficient to read the lateral direction of the paper 9, and reads image data in the range of one horizontal line. And a paper sensor 14 for detecting the presence or absence of the paper 9.

The print head 21 is attached by a head moving motor (not shown) included in the space mechanism 22 so as to be movable in both left and right directions.
Print head 21 through print head controller 15
Can be moved in the left-right direction with respect to the paper 9, and the amount of movement can be controlled.

Further, since the paper feed rollers 41 and 42 are mounted so as to be rotatable in both directions, the CPU 10
Can move the paper back and forth (left and right direction in the drawing) through the paper feeding mechanism, and can control the moving amount thereof.

The program executed by the CPU 10 of the printing apparatus 1 is subdivided into various small processing programs executed by the CPU 10. The program is activated by storing a received data in a buffer (not shown) and a print command. Based on the data stored in the data buffer, the print processing for printing while sequentially controlling the print head 21 and the space mechanism 22 including the head moving motor through the print head controller 15, and the data activated by the paper feed command. Based on the data stored in the buffer, the paper feed rollers 32, 41 and 42 are set to the paper feed mechanism controller 16
The paper 9 is moved by rotating the paper 9 sequentially through
A paper feed process for changing the relative position of the paper 9 with respect to the print head 21, and a head moving motor in the space mechanism 22 based on data stored in a data buffer which is activated by a head feed command. The sheet 9 set in the printing apparatus 1 is activated by a head feeding process of moving the print head 21 by sequentially rotating the print head 21 to change the relative position of the print head 21 with respect to the sheet 9 and an image reading command. An image reading process of reading the above image as image data through the image sensor 31 and the image reader controller 17 and transmitting the image data to the higher-level device 4 is performed.

With respect to the paper feeding process during the image reading and printing process according to the embodiment of the present invention, as shown in the flowchart of FIG. Paper) 9
Is set and a paper feed command is issued by activating a switch or the like of the upper device 4 or the operation panel 2 of the printer 1, and the paper feed (line feed) motor 43 in the paper feed mechanism controller 16 is rotated in the forward direction. Paper feed roller 32
Is rotated and the paper feed process 201 is executed. Next, the image data reading process 202 issues an image reading command to the printing apparatus 1, causes the image sensor 31 to read the image (form image) located in the reading area on the paper 9, and causes the printer I / F 18 to read. The image data is transferred to the higher-level device 4 via the device. Next, as shown in FIG. 4, the sheet 9 contacts the sheet sensor 14 to perform a sheet presence / absence determination process 203. When the paper sensor 14 is turned on, the paper feed counter 13 starts counting and the paper feed roller 4
As shown in FIG. 5, the leading edge of the sheet 9 is conveyed to the position of the sheet feeding roller 42 behind the printing apparatus 1 via the sheet feeding device 1. Further, the paper feed rollers 41 and 42 are rotated, and when the trailing edge of the paper 9 passes the paper sensor 14 as shown in FIG. 6, the paper sensor 14 is turned off, the counting of the paper feed counter 13 is finished, and the length of the paper is obtained. The processes 204 to 205 are executed. The counted value of the paper feed counter 13 is stored in a memory including the paper feed counter 13. Also, the paper sensor 14
After the trailing edge of the sheet 9 has passed through, the sheet 9 is conveyed by a predetermined amount and the sheet feeding process is temporarily stopped (step 207). Paper here 9
Process to return to the paper cue position of the printer 1.
Prior to the processing, the return amount of the paper 9 is calculated 208
I do. The return amount is “paper feed counter value + paper 9
The distance that the trailing edge is fed by a predetermined amount after passing the paper sensor 14 (B in FIG. 6) −the distance from the paper sensor 14 to the paper cue position (A in FIG. 6) ”. The paper feed motor 43 is rotated in the reverse direction, and the paper feed rollers 41 and 42 are also rotated in the reverse direction, so that the paper 9
Is returned to the sheet feeding side as shown in FIG. 7, and the leading edge of the sheet is stopped at the sheet cueing position of the printing apparatus 1 (processes 209 to 211). When print data and a control command are received from the host device 4 in this state, the print operation can be executed and a desired print result can be obtained. Paper determination processing of FIG. 1 (203, 205, 2
In 10), if there is no response from the paper sensor 14 even after the lapse of a predetermined time, it is determined that a failure such as paper jamming has occurred, and error processing 212 is performed. 8 and 9 schematically show the state in which the reading of the paper 9 is started and the paper 9 is returned to the print start position.

[0018]

As described above, according to the present invention, the operation from the reading of the form sheet for printing to the stop of the form sheet at the printing start position can be performed in conjunction with each other. Since the printing start position does not deviate due to the paper setting compared to the case where the printing operation is separated, it is possible to solve the positional problem of fixed form paper and character string data, which is the biggest problem in fixed form printing, depending on the user. It is possible to provide a form printing system with excellent operability that can eliminate several trial prints, position misalignment correction by form data correction, and paper waste.

[Brief description of drawings]

FIG. 1 is a schematic flow diagram of a paper feed process of reading a fixed form print and printing.

FIG. 2 is a block diagram of a printing device with an image reading device.

FIG. 3 is a schematic configuration explanatory diagram of an image reading and printing apparatus.

FIG. 4 is an explanatory diagram of a sheet feeding operation.

FIG. 5 is an explanatory diagram of a paper feeding operation.

FIG. 6 is an explanatory diagram of a paper feeding operation.

FIG. 7 is an explanatory diagram of a paper feeding operation.

FIG. 8 is a schematic external view of a printing apparatus with an image reading device at the start of reading a sheet.

FIG. 9 is a schematic external view of a state in which the paper is returned to the print start position.

[Explanation of symbols]

1 ... Printing device, 2 ... Operation panel, 3 ... Image reader,
4 ... Host device, 9 ... Paper, 10 ... CPU, 12 ... Program memory, 13 ... Paper feed counter, 14 ... Paper sensor, 15 ... Print head controller, 16 ... Paper feed mechanism controller, 17 ... Image reader controller,
18 ... Printer I / F, 21 ... Print head, 22 ... Space mechanism, 31 ... Image sensor, 32, 41, 42 ...
Paper feed roller, 43 ... Paper feed motor.

Claims (1)

[Claims] 1. A print head, a first roller that conveys paper to the print head, a second roller that conveys paper that has passed through the print head, and drives the first and second rollers. In a printing apparatus including at least a line feed motor, a sheet detection unit that detects the presence or absence of a sheet, and a line-type image reading device in front of a print head, the first roller is driven to feed the sheet. After passing the sheet, the sheet detecting means is conveyed from the time when the leading edge of the sheet comes into contact to the point when the trailing edge of the sheet exceeds the sheet detecting means, and the amount of feed until the ON / OFF of the sheet detecting means is counted. A first counting unit and a second counting unit that feeds a predetermined amount of paper until the trailing edge of the sheet passes through the second roller after the trailing edge of the sheet passes through the sheet detecting unit and counts the fed amount of the sheet. hand It has once stops the line feed motor, a count value of said first counting means and second counting means,
Further, a paper feed amount is fed from the time when the paper comes into contact with the paper detection means, and a paper feed amount is calculated by adding a predetermined feed amount for conveying the leading edge of the paper to the printing position. A printing device with an image reading device, characterized in that the paper is returned to the front side and the paper is controlled to stop at the print start position of the printing device.