JPS5814788A - Printer - Google Patents

Abstract

PURPOSE:To contrive to enhance operatability of a printer, by a method wherein a counter for form feed is provided and the form feed is performed by the counter, in a printer provided with an automatic sheet feed function. CONSTITUTION:In a printer with a TOP OF HOME sensor, when a form feed signal (a) is inputted, it is discriminated whether or not the recording paper is set by automatic setting (b). When the paper is automatically set, the answer to the question (b) remains YES until the paper is discharged, and the form feed is conducted by using a form feed (FF) counter. Namely, the FF counter is first set at an initial value, it is subjected to subtraction for every single line feed such as a line feed in printing, and is reset to the initial value when the count value is reduced to 0. Also in a printer with a TOP OF HOME counter, the FF counter can be used similarly.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a printer device, and in particular, in a printer device having auto sheet feed and auto set functions, a form feed control counter is provided,
The form feed control counter is used to perform form feed during auto sheet feed and auto set, thereby improving the operability of the counter device.

Generally, the home position for form feed (TOPOF
HOME) In printers with or without a detection sensor, recording paper is set at the print start position when auto sheet feeding and auto setting are performed. TOP OF HOME
) In a printer device equipped with a detection sensor, this printing start position becomes the actual home position of the recording paper. Therefore, when continuous recording paper is set seven times by auto-setting, the next form feed signal (FF) will set it at the position of the home position detection sensor, but this is different from the home position on the recording paper. To correct this, I had to manually move the recording paper so that the home position detection sensor matched the home position of the recording paper. In this way, even if the recording paper is easily set using auto-setting, when using form feed, the recording paper must be moved manually. In addition, auto-set for each sheet,
When performing automatic sheet feeding, the amount of paper feed must be determined by counting the amount of print to automatically feed out the chart paper after printing is completed.If this is not done, the amount of feed ( For example, in the case of A4 size recording paper, A
I try to set it to all 4 sizes or about half of the size. In addition, if there is no sensor for detecting the home position, a counter for detecting the feed amount of one sheet of recording paper is provided in place of the sensor, and the counter detects the home position (TOP OF
HOME) is being detected.

The present invention has been made in order to solve the above-mentioned drawbacks of the prior art.The counter device is provided with a counter for form feeding, and the counter is used to perform form feeding, thereby making it possible to operate the printer device. Fig. 1 is a schematic diagram showing the main parts of a printer to which the present invention is applied, showing the setting state of recording paper in auto set or auto sheet feed. 2 is a continuous recording paper, 2 is a paper guide plate, 3 is a paper foot roller, 4 is a paper pail, 5 is a platen, and A is a print start position. In Figure 1, if form feed (FF) is performed using continuous paper, TOP OF H
Since the amount of movement of the recording paper is determined by the OME sensor or the TOP OF HOME counter, the cue position of the next page is different from the cue position of the previous page. Therefore, in the present invention, when recording paper is set by auto set or auto sheet feed, a form feed counter (this form feed counter can be used in combination with the TOPOF HOME counter)
Set a certain value in , and from now on, form feed will be performed based on this value.

Figure 2 is a form feed (FF) flowchart of a printer device with a TOP OF HOME sensor;
FIG. 3 is a form feed flowchart for a printer without a TOP OF HOME sensor.
In printers equipped with an OP OF HOME sensor, the recording paper is fed to the position of the 'rop OF HOME sensor, so when setting the recording paper on the platen, the recording paper must be aligned with the home position, and , TOP OF HOME sensors, etc., the 0 position of the TOP OF HOME counter must be aligned with the home position of the recording paper.

FIG. 4 is a flowchart when the present invention is applied to a Brita device with a TOP OF HOME sensor. First, when a form feed key or a form feed signal is input, a jump is made to the form feed flow. At this time, it is determined whether or not the recording paper is the recording paper that was set by auto-set. If not, the process goes to the flow shown in Figure 2, and if it is the recording paper that was set by auto-set. In this case, auto set will be YES until the set recording paper is ejected (for continuous paper, it will be YES until the last page is ejected), and form feed will be performed using the form feed counter (FF C0UNTER). . First, the form feed counter is set to an initial value of 660 (1
If the line feed amount for one line is 760 inches with 1 inch stock form paper, then 11 (inches)
x6o=660)a This form feed counter is a 660-decimal counter that is decremented every line feed such as a line feed during printing, and is set to 660 again when it reaches 0. 1/1, the form feed counter is set to 660, and if 230 lines of line feed are performed during printing, the subsequent form feed will be 430 lines.

FIG. 5 is a flowchart when the present invention is applied to a printer device without a TOP OF HOME sensor. In this case, the TOP OF HOME counter is preset to 660 when the power is turned on, and then
Operates as a sexagesimal counter, and 0 is Ho FF
C0UNTER), and when used, the TOP OF HOME counter is set to 66 by the auto-set flow, as shown in the flowchart shown in Figure 3.
Just set it to 0.

As explained above, according to the present invention, not only can form feed by autoset be easily performed, but also one
Ejection of the recording paper after printing is completed on a sheet-by-sheet basis can also be easily performed by fully utilizing this form feed function.

If this form feed is not used, then the recording paper is fed as follows: (1) A line feed for the entire page (297 rnm in the case of A4 size) is performed.

(2), memorize the feed amount S at Imaushi, and set it to 297mm.
-S Perform line feed for mrn.

In (1), there will be an extra feed of 9, and in (2), the feed amount S must be counted at all times, so there are disadvantages such as complicated circuit configuration or software. be.

As is clear from the above description, according to the present invention, a form feed counter is provided and the form feed is performed using the counter during auto sheet feed and auto set, thereby improving the operability of the counter device. can be improved.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of the main parts of a printer to which the present invention is applied, Fig. 2 is a form feed flowchart of a printer with a TOP OF HOME sensor, and Fig. 3 is a form feed flowchart of a printer without a TOP OF HOME sensor. FIG. 4 is a flowchart of form feed of a printer device, and is a flowchart when the present invention is applied to a printer device with a TOP OF HOME sensor.
FIG. 5 is a flowchart when the present invention is applied to a printer device without a TOP OF HOME sensor. ■ Recording paper, 29 paper guide plates, 3 paper feed rollers,
4.Paper Pail, 5.Platen. Patent applicant Ricoh Co., Ltd.

Claims (1)

[Claims] CI). A printer device having an auto sheet feed and auto set function, which has means for automatically winding recording paper around a platen by auto sheet feed and auto set, and the recording paper reel is provided with a form feed control counter in the means. A printer device characterized in that the counter can be set to a predetermined value. (2) A patent characterized in that, in a printer device equipped with a form feed position detection device, the output signal of the form feed position detection device is disabled while the auto sheet feed and auto set are in use. A printer device according to claim (1).