JPS61246076A - Resetting system for cut sheet feeder - Google Patents

Abstract

PURPOSE:To enhance efficiency of a printing operation, by a system wherein it is discriminated whether a paper is in the state of being not yet sucked in, the state of being sucked in but not yet printed or the state of being sucked in and printed, and when a resetting command is supplied, the paper is discharged only when the paper is in the state of being sucked in and printed, whereby an unprinted paper is prevented from being discharged even in a resetting operation. CONSTITUTION:An external data (a) and a suction button signal (b) are inputted to a printer controller 11, a program and data are read from a memory 12 to control the entire part of the printer, and a line feeding controlling part 13 performs a line feeding operation as well as paper sucking-in and discharging operations. A printing-controlling part 14 performs a printing operation on the paper thus sucked in, while a cut sheet feeder controlling part 15 designates the state of a slip paper to a main body 16 of the cut sheet feeder, thereby controlling discharging or non-discharging when a resetting command is supplied. The control of the paper is divided into three conditions: (1) before sucking-in, (2) after sucking-in and before print, and (3) after sucking-in and printing. In the controlling part 15, one of the conditions (1)-(3) is stored in a register 121, and a discharging operation is conducted only in the condition (3), while it is not conducted in the conditions (1), (2). Accordingly, an efficient printing operation can be performed.

Description

[Detailed Description of the Invention] (Summary) The present invention provides a cut sheet feeder of a printer that controls the suction, printing, and ejection of cut sheets, whether paper is fed before suction, after suction and before printing, or after suction and printing. Of the three states, a means is provided to eject paper in response to a reset command only in the state after suction printing, so that unprinted paper is not ejected by the reset operation.

[Industrial application field]

The present invention relates to a processing method at the time of resetting a cut sheet feeder of a printer that controls the suction, printing, and ejection of cut sheets according to the state of the sheets.

[Conventional technology]

Conventionally, printers have been used that are equipped with a cut sheet feeder that controls cut sheets rather than continuous sheets.

FIG. 3 is a perspective view of this type of printer with a cut sheet feeder. In the figure, a suction command, a print code, etc. are input from an external processing device, and under the control of the cut sheet feeder 2 shown in the figure, a cut sheet 4 is taken out from the paper tray 3, sucked into the printing unit 1, and printing is executed. After that, the p-printed paper is ejected to the paper tray 5 using an ejection command.

[Problem that the invention seeks to solve]

A conventional printer with a cut sheet feeder is configured to eject the paper remaining in the printing section when the printer is reset. This is done so that after the reset operation, the top edge of the new paper will start rolling. However, if the reset operation is performed after sucking in a new sheet in advance by manual operation of the operator i1 or by means such as a suction button, there is a drawback that unprinted sheets are also ejected. This situation occurs with word processor programs currently in circulation. These word processors often send a reset command at the beginning of a sentence. In such a printer, when the operator starts the word processor after sucking in the paper using the above-mentioned means, the paper is ejected.

SUMMARY OF THE INVENTION An object of the present invention is to provide a reset processing method for a cut sheet feeder of a printer that controls cut sheets, in which the state of the sheets is distinguished and unprinted sheets are not ejected.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a cut sheet feeder of a printer that controls cut sheets to determine whether the paper is before suction, after suction and before printing, or after suction printing. It is equipped with means for distinguishing which of the three states it is in, and means for ejecting paper only when it is in the state after suction printing when a reset command is issued, and does not eject unprinted paper even during the reset operation. This is how it was done.

[For production]

In the above configuration, even if the operator performs a manual operation or inhales using the suction button, etc., as long as printing is not performed, the unprinted paper will not be ejected even if a reset command is issued, and only the printed paper will be ejected. Since the paper is ejected, efficient printing operations can be performed.

〔Example〕

Fig. 1 is an explanatory diagram of the configuration of an embodiment of the present invention υ, Fig. 2 (
α) to (s) are flowcharts showing operations for each state of the embodiment of the present invention.

In FIG. 1, a printer control 11 consisting of a microprocessor (MPU) receives external data and the above-mentioned suction button signal off, reads programs and data from a memory 12, and controls the entire printer. The line feed control section 13 under its control performs a printing feed feed operation, as well as paper suction and paper ejection operations, which are essential parts of the present invention.

The print control unit 14 performs a printing operation on the paper after suction. Next, the cut sheet feeder control section 15 is a main part of the present invention, and specifies the state of the cut sheet for the cut sheet feeder main body 16, and performs ejection and discharge at the time of a reset command.
Control non-emissions.

Note that the state of this paper is stored in register 1 of one part of memory 12.
It will be remembered for a while.

This paper control is divided into the following three states as described above. That is, (1) the paper is before being sucked. (There is no paper in the printing section.) ■The paper is in the printing section even though it has been sucked.

■The paper has been sucked and printed.

Then, in the cut sheet feeder control unit 15, the states of ■ to ■ are specified according to each operation procedure such as power-on, paper suction, printing operation, and paper ejection, and the register 121 is
In response to a reset command, the ejecting operation is not performed in the states ① and ②, and the ejecting operation is performed only in the state ①C.

FIGS. 2(α) to 2(e) are flowcharts showing each of the above-mentioned operating procedures and the designation of states ① to ② when a reset command is issued.

In the same figure (ci is the time when the power is turned on), since the previous state is not known at this time, the discharge operation is performed and the initial setting is made to the state shown in (2).

(b) in the same figure shows when paper is sucked in), and when the operator presses the suck button or receives a suck command, new paper is fed into the printing section, and the state shown in (■) is created.

(C) in the same figure is when printing is executed), the specified printing is executed, and
state.

In <d) of the same figure, the paper is ejected #ltl#, and the ejecting operation is performed to bring the state to ■.

Figure (e) shows the reset process when an external set command is issued, and the paper ejection operation is performed only in the state of (6) in the figure (6), resulting in the state of ■, but the state before printing is shown in (6). ■
In , ■, the ejection operation is not performed.

[Effects of the Invention] As explained above, according to the present invention, in the cut sheet feeder of a printer, it is possible to determine whether the paper is in one of six states: before suction, after suction and before printing, or after printing by a person. The paper is ejected only when the reset command is issued and the paper is in the state after suction printing. With this, even if there is a reset command, unprinted paper is not ejected, and only printed paper is ejected, making it possible to perform an efficient printing operation.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the configuration of an embodiment of the present invention, Fig. 2 (cL)
〜(#) is a flowchart showing the operation of the embodiment of the present invention, and FIG. 6 is a perspective view of a printer with a cut sheet feeder. In the figure, 1 is a printing section, 2 is a cut sheet feeder, and 6 is a paper tray. , 4 is a cut sheet, 5 is a paper receiver, 11 is a printer control, 12 is a memory, 121 is a paper status storage register, 13 is a line feed control section, 14 is a print 71tlJ control section,
15 is a cut sheet feeder control section, and 16 is a cut sheet feeder main body.

Claims (1)

[Claims] In the printer's cut sheet feeder, which controls the suction, printing, and ejection of cut sheets using suction commands, print codes, ejection commands, etc., the paper is in three states: before suction, after suction and before printing, and after suction and printing. It is provided with a means for distinguishing which of the two is present, and a means for ejecting paper only when the paper is in a state after suction printing when a reset command is received, so that unprinted paper is not ejected even during the reset operation. A cut sheet feeder reset processing method featuring: