JPS61116566A - Printer - Google Patents

Abstract

PURPOSE:To facilitate disposal of a jammed paper and setting other auxiliary devices, by a construction wherein an auxliary device to be mounted on a main body of a printer is so supported that it can be moved between a use position and an off-use position. CONSTITUTION:When an automatic paper-supplying device 2 located at the use position is pushed rightward, the device 2 is moved rightward while being guided by rails 16, 17 to the off-use position. At this moment, the device 2 and the main body 1 of the printer are widely spaced from each other, and a platen 8 is exposed at the resulting opening 31. Accordingly,a jammed paper can be easily confirmed, and can be speedily removed. In addition, a home tractor or the like can be set into the opening 31.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printer having a printer main body and an auxiliary device mounted on the main body.

For example, printers that are equipped with an automatic paper feeder that feeds paper such as cut sheets and slips into the printer body, or auxiliary devices such as covers for the printer body, are mounted on the printer body. .

Auxiliary devices are usually attached to the printer body either removably or fixedly so that they cannot be removed. In this state, the paper path on the printer main body side, for example, the area near the platen, is covered by the auxiliary device. Therefore, when a paper jam occurs in the paper path of the printer body, the auxiliary device becomes an obstacle and it is difficult to remove the jammed paper.

If the auxiliary device is removable, it can be removed for processing, but it is very difficult to remove the auxiliary device every time a jam occurs.

In addition, the printer is sometimes used by replacing the auxiliary device attached to the printer with another auxiliary device, but with conventional printers, replacing the device is very troublesome, or
Sometimes it's impossible. For example, when replacing the automatic paper feeder that is removably mounted on the printer body with another auxiliary device, such as a home tractor that feeds long continuous forms, lift the automatic paper feeder upwards from the printer body. If the printer must be removed and then the home tractor installed, or if auxiliary equipment such as an automatic paper feeder is fixedly mounted on the printer body.

It is not possible to replace it with other auxiliary equipment.

[I] An object of the present invention is to provide a printer of the type described in Kanjun, which eliminates the above-mentioned conventional drawbacks.

1. The present invention proposes a structure in which an auxiliary device mounted on a printer main body is supported so as to be movable between a use position and a non-use position.

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

Figures 1 to 3 show an automatic paper feeder in the printer main body 1!
The printer main body 1 is an example of a printer equipped with auxiliary devices consisting of 2, as is well known.

Platen for wrapping printing paper 8. It has a deflector 10° provided around the platen to guide the paper, a print head 11, etc.

On the other hand, automatic paper feeder! 2 is also well known.

It has a hopper 3 that accommodates paper 5 to be printed (cut sheets in this case), and a back plate 4 is detachably attached to the hopper 3. Reference numeral 66 is a paper feeder that is driven to rotate in a clockwise direction. When the paper 5 passes between the paper feed roller 6 and the friction pad 7 placed opposite to it, multi-feeding in which multiple sheets of paper are sent out at once is prevented, and the paper is
The sheets are sent out one by one in the direction indicated by arrow A. The fed paper is conveyed while being wrapped around a platen 8 that rotates clockwise, and predetermined information is printed by a print head 11. Next, the sheet is discharged to a sheet discharge stacker 12 by a pair of sheet discharge rollers 9 of the automatic sheet feeder 2 as shown by arrow B. The paper discharge stacker 12 is also detachably supported by the mounting member.

13, 13a are support frames of the automatic paper feeder 2;
Reference numeral 14a indicates a side cover covering the outside thereof, and reference numeral 30 indicates a rear cover.

As mentioned above, the paper is transferred from the hopper 3 to the platen 8.

The paper is then sent to the paper discharge stacker 12, but the area of the platen 8 that constitutes this paper transport path is covered by the automatic paper feeder 2. Therefore, when paper jams in the paper conveyance path around the platen, it is difficult to remove it in the state shown in FIG. 2. Therefore, the printer according to the present invention is constructed so that the automatic paper feeder 2 can be moved from the normal use position shown in FIGS. 1 and 2 to the non-use position shown in FIG. In order to enable this operation, in the illustrated embodiment, guide rails 16.16a extending approximately horizontally are fixed to the support frame 13.13a of the automatic paper feeder 2, and each fixed support plate of the printer body l is fixed. 15° 15a to mating rail 17.1
7a is fixed, and the guide rails 16, 16a and the mating rail 17.degree. 17a are slidably fitted into each other as clearly shown in FIG. Therefore, if the automatic paper feeder 2 in the use position shown in FIGS. 1 and 2 is pushed to the right in the figure, the device 2
It moves to the right while being guided by a, and is brought to the non-use position shown in FIG. At this time, the automatic paper feeder! 2 and the printer main body 1 are wide open, and the platen 8 is exposed in this opening 31.

Therefore, the jammed paper can be easily confirmed and its removal work can be carried out quickly. The automatic paper feeder 2 may be moved by a drive device.

Another automatic paper feeder! When performing a printing operation with an auxiliary device other than 2, such as a home tractor, mounted on the printer body, the automatic paper feeder 2 is slid to the non-use position shown in FIG. Gotoku Home Tractor 2
Can be set to 0. Therefore, even if the automatic paper feeder 2 is detachable from the printer body 1, the auxiliary device can be replaced without lifting the device 2 upwards from the printer body 1 and removing it. Even if the auxiliary device cannot be attached to or detached from the auxiliary device, it is possible to replace the auxiliary device without any problem. In the illustrated example, when the home tractor 20 is set or used, an automatic paper feeding bag is used!
If there is a possibility that the back plate 4 of No. 2 and the paper discharge stacker 12 may get in the way, they can be removed as shown in No. 5@.

Note that, as is well known per se, the home tractor 20 illustrated in FIG. 5 has a pair of cases 21 (
The rack has a tractor 25 supported on a shaft 26 extending between the cases (only one case is shown in the figure). A sheet (in this case, a continuous form) 50 is guided by a guide member 23 supported by the case 2I as shown by arrow C, and the perforation (not shown) of the sheet is connected to the bin 22 of the belt driven in the direction of arrow E. Together, they receive a feeding action, are wound around the platen 8 of the printer main body 1, and are printed. After printing, the paper 50 engages with the pin 22 of the tractor 25 again.
It is transported in the direction of the arrow while being guided by a guide plate 24 attached to the case 21.

After using the home tractor, it is sufficient to remove it from the printer main body 1 and slide the automatic paper feeder 2 to the use position again.

In the above embodiment, an auxiliary device consisting of an automatic paper feed bag [2] is mounted on the printer main body 1, and this is movably supported. However, other auxiliary devices may be used.

For example, a cover for the printer body or a home tractor may be mounted on the printer body and supported movably.

Also, the timing of paper feeding differs when using the automatic paper feeder 2, when using the home tractor 20, or when just placing the cover.

The control mode, such as whether automatic paper feeding is possible or not, is slightly different, but in order to deal with this, it is possible to select the control mode with a manual switch installed on the printer body, or a micro switch on the printer body or auxiliary device side. , installing sensors such as photosensors and bringing auxiliary equipment to the position of use;
Alternatively, the sensor may be activated by a set of auxiliary devices other than the auxiliary devices brought to a non-use position, and a control mode suitable for the auxiliary device to be used may be automatically selected.

According to the present invention, by bringing the auxiliary device to a non-use position, it has become possible to dispose of jammed paper or to easily set other auxiliary devices.

[Brief explanation of drawings]

FIG. 1 is a side view of a printer according to the present invention, and FIG. 2 is a side view of a printer according to the present invention.
A partial sectional view showing a part of the figure broken away, Figure 3 is a rear view seen from the right side of Figure 1, and Figure 4 is a side view showing the automatic paper feeder in a non-use position. , FIG. 5 is a partially sectional side view showing a state in which the home tractor is set. 1... Printer body 8... Platen

Claims (2)

[Claims] (1) A printer comprising a printer main body and an auxiliary device mounted on the main body, wherein the auxiliary device is supported so as to be movable between a use position and a non-use position. (2) The printer according to claim 1, wherein the non-use position of the auxiliary device is set so that the platen of the printer body is exposed when the auxiliary device is brought to the non-use position.