JPH02229064A - Printer - Google Patents

Abstract

PURPOSE:To prevent yellowing due to leaving paper while the temperature of a heater roller is lowered by providing a control part which turns a heater roller off when it is judged by a discriminating part that setting of the paper is completed. CONSTITUTION:When paper 12 on a hopper 11 is pulled up in setting the paper, presence of the paper 12 is detected with a first sensor 17. Then, when paper feed switch 24 is turned on in order to send the paper set on a tractor 13 to a preheater board 18 in a fixing device 14 and to a heater roller 19, a discriminating part 22 starts a time. When preliminarily determined specific time is timed with the timer, the discriminating part 22 discriminates presence of the paper 12 in a stacker 15. When the paper 12 is present, completion of setting of the paper is reported to a control part 23. The control part 23 turns the heater of the preheater 18 and the heater roller 19 off. Since the heater is turned off thereby when setting of the paper is completed after specific time has elapsed from start of setting the paper, the paper is never yellowed even in the case where printing operation is not performed just after setting the paper.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an output printer device for an information processing device,
In particular, the present invention relates to a printer device that prints on continuous paper.

[Conventional technology]

As a conventional output printer device of this type, there is one shown in FIG. This means that the paper 12 is placed in the hopper 11.
is set, and the paper 12 is supplied to a stacker 15 via a tractor 13 and a fixing device 14. In this case, printing on the paper 12 is performed by the printing mechanism section 1 of the tractor 13.
It will be held at 6.

When setting the paper 120, the paper 12 on the hopper 11 is pulled out and set on the tractor 13 while the first sensor 17 detects the presence or absence of the paper 12.

Then, a supply switch (not shown) guides the paper to a preheater plate 18 and a heater roller 19 in the fixing device 14, and the second sensor 20 detects that the paper is supplied to the stacker 15, and the setting of the paper 12 is completed.

[Problem to be solved by the invention]

However, in the conventional printer device, if the printing operation is not started within a predetermined time after the setting of the paper 12 is completed, the paper 12 will be left as is. Then, at the contact portion between the break heater plate 18 and the heater roller 19 and the paper 12, the paper 12 is heated by the heat of the heater.
The problem was that it turned yellow.

[Means to solve the problem]

The present invention includes a determination unit that determines whether or not paper setting has been completed after a predetermined period of time has elapsed from the start of paper setting, and a heater of a heater roller when the determination unit determines that paper setting has been completed. The invention is characterized by comprising a control section for turning off.

[Effect]

As a result, the heater of the heater roller is turned off after the paper is set, and the temperature of the heater roller is lowered, so that it is possible to prevent the paper from yellowing due to being left unused.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to FIG. 1 and FIG. 2.

FIG. 1 is a block diagram showing the main parts of a printer device according to the present invention. The printer device of the present invention is provided with an arithmetic device 21 consisting of a microcomputer or the like, and this arithmetic device 2
1 consists of a discrimination section 22 and a control section 23. Discrimination unit 22
This is to determine whether or not the paper setting is completed after a predetermined period of time has elapsed. That is, it provides a detection signal from the first sensor 17 that detects whether the paper 12 in the hopper 11 is being sent to the tractor 13 and a command to send the paper 12 mounted on the tractor 13 to the fixing device 14. Command signal from paper feed switch 24 and stacker 15
A built-in timer is started from the time when both the first sensor's detection signal and the command signal of the paper feed switch 24 become present. Let it start. When the time measured by the timer reaches a predetermined value, it is determined whether there is a detection signal from the second sensor, and if there is, it is determined that the sheet setting is complete and the controller 23 is notified of this fact.

The control unit 23 inputs a signal indicating completion of paper setting from the determination unit 22 through a preheater plate 18 and a heater roller 19.
This turns off the heater.

FIG. 2 is a flowchart showing the processing operation of the printer device of the present invention. First, when setting the paper, the paper 12 on the hopper 11 is pulled up (step 2). As a result, the first sensor 17 detects the presence of the paper 12 (step 2). Then, when the paper feed switch 24 is turned on to feed the paper 12 set on the tractor 13 to the preheater plate 18 and heater roller 19 in the fixing device 14 (step 2), the determination unit 22 starts a timer (step 2). ). When the predetermined period of time is counted by the timer (step ■), the determination unit 22 determines whether the stacker 1
Step ■) to determine the presence or absence of paper 12 in 5), paper 1
2 is present, it notifies the control unit 23 that paper setting is complete;
The control unit 23 includes a preheater plate 18 and a heater roller 19.
Turn off the heater (step ■). As a result, the heater is turned off when the paper setting is completed after a certain period of time from the start of paper setting, so the paper does not turn yellow even if the printing operation is not performed immediately after the paper is set. do not have.

〔Effect of the invention〕

As described above, according to the present invention, the presence or absence of paper in the stacker is detected when paper is set, and the time from paper setting to completion is measured in a clockwise manner, thereby determining whether or not paper setting has been completed. When it is determined that paper setting is complete, the heater is turned off, so the temperature of the heater roller and preheater plate can be lowered. In other words, it is possible to prevent paper from yellowing due to being left unused.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the main parts of the printer device of the present invention, FIG. 2 is a flowchart showing the processing operation of the printer device of the present invention, and FIG. 3 is a configuration diagram of a conventional printer device. 11...Hopper, 12...Paper, 13
...Tractor, 14...Fuser, 15
...Stacker, 16...Printing mechanism section,
17...First sensor, 18...Preheater plate, 19...Heater roller, 20...Second sensor, 21... Arithmetic unit, 22...Discrimination unit,
23... Control unit, 24... Paper feed switch.

Claims (1)

[Scope of Claims] A dry printer device having a paper fixing mechanism using a heater roller, comprising: a determination unit that determines whether or not setting of the paper is completed after a predetermined period of time has elapsed from the start of setting the paper; A printer apparatus comprising: a control section that turns off the heater of the heater roller when the determination section determines that setting of the paper is completed.