JPH0458393B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a front inserter, which is one form handling method for a serial printer.

[Conventional technology]

Conventionally, the front inserter mainly has the function of inserting copy slips into the printer one by one, sucking in, printing, and ejecting the slips, but there are restrictions on the medium (slip) in order to allow the front inserter to insert the slips successfully. It is normal that there is. Particularly in the case of copy slips, the edges are glued so that the edges of the slip can be properly placed on the opening/closing portion between a pair of opposing rollers. Since the slip is usually inserted from above, it is necessary to glue the bottom edge of the slip.

[Problems to be solved]

However, slips that are not designed for use with a front inserter usually have their top edges glued. In this case, there was a problem in that it was extremely difficult to hold the slip into the opening of the feed roller of the front inserter because the lower end was disjointed.

[Means for solving problems]

The present invention solves the above problems,
When the printing paper with glued edges is inserted,
In a front inserter in which the end portion contacts a retractable stopper and is temporarily stopped, and the end portion is further sandwiched between a pair of rollers and fed to perform predetermined printing, the stopper Two types of rollers are provided, one located above and one below the roller.

〔Example〕

Next, the embodiment will be described with reference to FIGS. 1 to 3.

FIG. 1 is a perspective view of a main part of a front inserter according to the present invention, and FIGS. 2 and 3 are side views showing states in which a slip is inserted into the front inserter from above and below, respectively.

In the figure, the front inserter of the printer is an upper guide 1 and a lower guide 11 (see Figure 2, respectively).
, the platen 3 and card holder 4 (see Figure 2) facing each other in the center, and the four sets of feed rollers 5 (see Figure 2) and pressure rollers 6 facing each other below them, and between each pressure roller 6. It consists of a pair of stoppers 7 and 8 (having L-shaped tips 7a and 8a, respectively) arranged on the left and right sides.

Here, the L of the pair of stoppers 7 on the left in FIG.
The shaped part 7a is disposed corresponding to the lower part of the pressure roller 6, and the L-shaped part 8a of the right pair of stoppers 8
is arranged above the pressure roller 6. Each of the stoppers 7 and 8 can swing freely using its lower part as a fulcrum, but normally the L-shaped parts 7a and 8
a is located at a position that blocks the gap between both rollers 5 and 6, respectively.

Next, the operation will be explained. First, the case where the slip 2a with its lower end glued in FIG. 2 is inserted into the front inserter from above will be explained.

In FIG. 2, the slip 2a with its lower end glued is guided by the guide 1 in the left half of the front inserter in FIG. 1 and inserted from above. The slip 2a passes between the card holder 4 and the platen 3 as shown in FIG. 2, and then rides on the L-shaped portion 7a of the stopper 7 between the feed roller 5 and the pressure roller 6 and stops there.

Here, the pressure roller 6 is moved inward. Then, the contact point of both rollers 5 and 6 is L-shaped part 7a.
Since it is located higher up, the slip 2a is sandwiched between both rollers 5 and 6. Therefore, if the pressure roller 6 is clamped and the stopper 7 is released to the left in FIG.
It remains sandwiched between 6 and 6 as described above, and can be fed downward to perform predetermined printing.

Next, FIG. 3 shows the case where a slip 2b whose upper end is pasted is inserted from below. This slip 2b
is inserted from below the front of the printer along the guide plate 11 in the right half of the front inserter in FIG. The inserted slip 2b is stopped by the L-shaped portion 8a of the stopper 8, but in this case, the contact points of both rollers 5 and 6 are located below the L-shaped portion 8a. Therefore, when the roller 6 is moved and clamped, the slip 2b is sandwiched between the rollers 5 and 6. Therefore, after releasing the stopper 8, the slip 2b can be fed upward.

As a result, two types of slips can be used with the same front inserter by simply changing the height positions of the stoppers 7 and 8 on the left and right sides of the front inserter.

The sensors 12 and 13 (see FIG. 1) detect which guides 1 and 11 contain the slips 2a and 2b, and specify the feeding direction of the slips.

〔Effect of the invention〕

As explained above, the present invention uses two types of stoppers for stopping the paper in the same front inserter, one of which is placed below the roller and the other above the roller.
When inserting a slip with adhesive at the bottom end, it is inserted from above and brought into contact with one of the stoppers, and when inserting a slip with adhesive at the top end, it is inserted from below and brought into contact with the other stopper. Ensure that the edges of the slip are properly sandwiched between the rollers,
This has the effect that slips can be inserted and sent smoothly and reliability can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a main part of a front inserter according to the present invention, and FIGS. 2 and 3 are side views showing states in which a slip is inserted into the front inserter from above and below, respectively. 1, 11... Guide, 2a, 2b... Slip, 3... Platen, 4... Card holder, 5... Feed roller, 6... Pressure roller, 7, 8... Stopper,
7a, 8a...L-shaped part, 12, 13...sensor.

Claims (1)

[Claims] 1 When a printing paper with a glued end is inserted, the end comes into contact with a retractable stopper and is temporarily stopped, and then the end is sandwiched between a pair of rollers and fed to a predetermined position. 2. A front inserter for printing, characterized in that the stopper is of two types, one located above and one below the pair of rollers.