JPH0569614A - Printer - Google Patents

Abstract

PURPOSE:To improve an operating property by a method wherein an arm which interlocks a pressure roller operating lever with a raising and lowering operation of a sheet guide, is provided. CONSTITUTION:Two pressure rollers 6 come freely in contact with a platen 5 and are freely separable therefrom, and coming in contact with the platen 5 of the pressure roller 6 and separating therefrom are performed with a pressure roller operating lever 3 via a pressure spring 8, a spring shaft 9, a spring gear 10, and a lever gear 11. A sheet guide 1 is connected to the pressure roller operating lever 3 via a pushing up arm 2, and the coming in contact with the platen 5 of the pressure roller 6 and separating therefrom and the raising and lowering operation of the sheet guide 1 are performed by interlocking them with each other. Since operation, of the formed by interlocking them with each other. Since operation, of the sheet guide both in the case of printing a cut form and in printing continuous forms is interlocked with operation of the pressure roller operating lever, thus an operating property is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer, and more particularly to a printer for switching between single-cut printing and continuous form printing.

[0002]

2. Description of the Related Art Conventionally, in this type of printing apparatus, the pressure roller operating lever and the sheet guide are not interlocked with each other so that the user presses the pressure roller against the platen and then the user presses the sheet guide. When starting up and printing single sheets, or when printing continuous sheets, the user lowered the sheet guide after separating the pressure roller from the platen with the lever.

[0003]

In the above-described conventional printing apparatus, the pressure roller operation lever and the sheet guide raising / lowering operation are not interlocked, and after the pressure roller is pressed against the platen by the user, When the sheet guide is started up and single sheet printing is performed and continuous form printing is performed, there is a drawback that the operability is poor because the user lowers the sheet guide after separating the pressure roller with the platen with the lever. .

[0004]

SUMMARY OF THE INVENTION A printer according to the present invention comprises a platen, a pressure roller that can be brought into and out of contact with the platen, a lever for operating the pressure roller to come in and out of contact with the platen, and this lever. The sheet guide is provided in connection with a sheet guide, and when the lever is operated in the contact direction of the pressure roller, the sheet guide is raised, and when the lever is operated in the direction of separating the pressure roller, the sheet guide is lowered. It has an arm for interlocking.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a side view of an embodiment of the present invention when printing a continuous form, and FIG. 2 is a side view of the present embodiment when printing a single form.

In this embodiment, the platen 5 facing the print head 4 and the platen 5 mounted on the roller holder 7 are mounted.
Two pressure rollers 6 which can be freely contacted and separated from each other, and a pressure for operating the contact and separation of the pressure roller 6 with respect to the platen 5 via a roller holder 7, a pressure spring 8, a spring shaft 9, a spring gear 10 and a lever gear 11. Roller operating lever 3
This pressure roller operating lever 3 and sheet guide 1
And a push-up arm 2 which is provided so as to be connected to and which interlocks the two.

In this embodiment, in the case of continuous form printing, the arrangement is as shown in FIG. 1, the pressure roller 6 is separated from the platen 5, and the sheet guide 1 also falls substantially in parallel. There is. In the case of single-cut printing, as shown in FIG. 2, when the user tilts the pressure roller operating lever 3 to the left (direction of arrow F), at the same time, the push-up arm 2 raises the sheet guide 1. Further, the lever gear 11 turns counterclockwise, and the spring gear 10 meshing with the lever gear 11 turns clockwise. A pressure spring 8 is attached to a spring shaft 9 fixed to a spring gear 10, which pushes up a roller holder 7 holding a pressure roller 6 to lift the pressure roller 6
Is pressed against the platen 5 and printing is performed by the print head 4. In this way, the movement of the pressure roller operating lever 3 and the rising / falling operation of the sheet guide 1 are interlocked.

[0009]

As described above, according to the present invention, a pressure roller operating lever for pressing the pressure roller against the platen and raising the sheet guide at the same time, and lowering the pressure roller from the platen and lowering the sheet guide at the same time. By having an arm that interlocks the rising and falling operations of the seat guide, there is an effect that operability can be improved.

[Brief description of drawings]

FIG. 1 is a side view when printing a continuous form according to an embodiment of the present invention.

FIG. 2 is a side view of the present embodiment at the time of single-cut printing.

[Explanation of symbols]

 1 sheet guide 2 push-up arm 3 pressure roller operating lever 4 print head 5 platen 6 pressure roller 7 roller holder 8 pressure spring 9 spring shaft 10 spring gear 11 lever gear

Claims (1)

[Claims] 1. A platen, a pressure roller that can be brought into and out of contact with the platen, a lever for operating the pressure roller to come in and out of contact with the platen, and the lever provided so as to be connected to the lever and a sheet guide. And an arm that interlocks so as to raise the sheet guide when the lever is operated in the contact direction of the pressure roller and lower the sheet guide when the lever is operated in the releasing direction of the pressure roller. Printing device.