JPH01180375A - Printer - Google Patents

Abstract

PURPOSE:To enable cut-forms and a continuous form paper to be simultaneously set and enhance operability, by detaching an automatic paper supplying device or moving a hopper guide in the automatic paper supplying device to form a space for setting the continuous form paper to a platen. CONSTITUTION:A hopper 108 and a paper support 115 are depressed downward by a lever 117, and a plurality of sheets of cut-forms are set in the state of being clamped between the hopper 108 and the paper support 115 on one side and rollers 118, 119 on the other side. With the rollers 118, 110 rotated by a clutch 120, the cut-forms are separated from an automatic paper supplying device, by one sheet at a time, and are fed to the side of a printing head. The rollers 118, 119 are moved following a hopper guide 105, so that when the hopper guide 105 is moved leftward or rightward, a space S can be formed. By utilizing the space S, a continuous form paper can be set in position while the automatic paper supplying device 100 is left fitted to a main body 1 of the printer. With the paper support 115 detached, the depth size of the printer is reduced, so that the cut-forms and the continuous form paper located respectively on the upper and lower side of a stacker 40 can be easily taken out. This effect is augmented when the automatic paper supplying device 100 is detached.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer that is an output device for electronic computers, word processors, etc., and particularly relates to a printer that can print on both single sheets and continuous sheets.

[Conventional technology]

2. Description of the Related Art Conventionally, a printer for printing on paper using a print head, such as an electronic computer or a word processor, has a configuration as shown in FIG. That is, a print head 2 and a platen 3 are arranged opposite to each other on the upper part of the printer main body 1.
A cut sheet 5 is placed on a horizontal table 4 provided at the upper front of the paper insertion side of the printer main body 1, and the cut sheet 5 is sent onto the platen 3 by conveyance rollers 6 provided on both sides of the platen 3 for printing. Printing was performed using head 2. Furthermore, when printing on continuous paper 7, as shown in FIG.
The continuous paper 7 was fed onto the platen 3 through the horizontal table 4. Note 9
is a cover that covers the printed area.

According to the conventional printer as described above, it is easy to set the cut sheet 5 and has excellent operability, and since the cut sheet 5 is inserted straight from the side, printing can be performed without bending it. Further, since the conveyance rollers 6 are disposed before and after the print head 2, the cut sheet 5 can be completely held and conveyed, and even short sheets 5 can be printed.

However, when printing on the continuous paper 7, it is necessary to release the drive by the transport roller 6 and drive it by the pull tractor 8, so it is necessary to pull up the upper roller of the transport roller 6 to create a gap, which complicates the mechanism. There was a problem. However, when printing on the single sheet 5, it was necessary to remove the continuous paper 7 from above the platen 3, which was a troublesome operation.

In order to solve this problem, a printer proposed by the applicant of the present invention and disclosed in Japanese Patent Application Laid-open No. 159186/1983 is known. In this proposal, as shown in FIG. 9, a pull tractor 8 is disposed at the lower part of the output side of the printer main body 1, and the continuous paper 7 is wound around the platen 3 from below and pulled out backwards without passing through the conveyance roller 6. It is something. According to this proposal, when printing on continuous paper 7, the conveyance roller 6
On the other hand, even when printing on the single sheet 5, there is no need to remove the continuous paper 7 from the platen 3, and simultaneous setting can be achieved.

Therefore, it is possible to print on the continuous paper 7 and the cut sheet 5 at the same time, and it is also possible to save the printing on the continuous paper 7 as a record.

[Problem to be solved by the invention]

However, according to this proposal, when the continuous paper 7 is set for the first time, the continuous paper 7 must be set from the rear lower part, and there is a problem that the operability of winding it around the platen 3 is poor.

The present invention solves the problem of complicating the mechanism due to the installation of a drive release mechanism for the transport roller, which was a problem when printing on both single sheets and continuous paper with one printer as described above, or on continuous paper. The purpose of the present invention is to solve the problem of operability when setting paper onto a platen, and to provide a printer that has a simple structure and can easily print on single sheets and continuous paper.

[Means to solve the problem]

The present invention provides a printer capable of printing on both single sheets and continuous paper, in which a table on which the single sheets are placed is provided in front of the printing section, and an automatic sheet feeder for the single sheets and the continuous paper are provided below the table. A guide section for inserting the sheet into the printing section is provided, and a drive means for the continuous sheet is provided at a lower portion on the discharge side of the sheet conveyance path.

The automatic paper feeding device is detachable from the printer main body, and the paper feeding device has a hopper guide shaft, a pickup roller shaft, and a separation roller shaft arranged side by side between a pair of opposing brackets, and a hopper guide shaft below the pickup roller shaft. The shaft is provided to be movable in the vertical direction, and a pair of hopper guides are supported by a hopper guide shaft and a pickup roller shaft or a separation roller shaft, and each of the pair of hoppers is attached to each hopper guide with both hopper guides. The printing part side of each hopper engages with a hopper shaft, a block is slidably provided on the hopper shaft, and a pair of links are provided between each hopper and the block. and a compression spring between the hopper guide or bracket,
The pickup roller shaft and separation roller shaft are rotatable relative to the bracket, and both shafts are provided with a pickup roller and separation roller, and an idle gear is provided between the shafts. A clutch is provided on the separation roller shaft, and the clutch is connected to a drive source within the printer body via a clutch gear.

[Effect]

According to the above configuration, by removing the automatic paper feeder or moving the hopper guide in the automatic paper feeder, a space for setting continuous paper on the platen can be created and the setting can be easily performed. There is no need to release the driving conveyance roller, and there is no need to remove the continuous paper from the platen when printing single sheets, so it is possible to set single sheets and continuous paper at the same time, and the operability is significantly improved.

〔Example〕

Embodiments of the printer according to the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. Parts that are the same or equivalent to those of the conventional example shown in FIG. The configuration of the conveyance path 10 and the automatic paper feeding device 100 is shown in FIG. A guide section 10 is provided below the horizontal chiffle 4 in the printer main body 1 for inserting the continuous paper 7 from the outside and guiding it to the platen 3. As shown in FIG. 2, the horizontal table 4 is provided within the printer body 1 on the rear discharge side of the printing section 2 and the platen 3. A paper presser 11 is provided on the upper surface of the guide section 10 and is elastically biased to press the continuous paper 7 in the direction of the guide section 10 . Further, as shown in FIG. 2, the cover 9 is rotatable upward using the vicinity of the end of the printer body 1 on the discharge side as a fulcrum.

During manual operation, the ticket 5a is inserted from the upper surface of the horizontal table 4, is conveyed by the conveyance roller 6, and reaches the lower part of the print head 2.

The print head 2 prints on the cut sheet 5 between the print head 2 and the platen 3, and after printing, it is discharged to the suit car 40 side by the conveyance roller 6 or returned to the horizontal table 4. .

3 to 5 show the automatic paper feeder 100. FIG. Fig. 3 is a sectional view, Fig. 4 is a top view, and Fig. 5 is a v--
■It is a sectional view taken along the cutting line.

Reference numeral 101 denotes a pair of opposing brackets, including a hopper guide shaft 102 and a pickup roller shaft 10.
3. A separation roller shaft 104 is provided. Shafts 103, 104 can rotate. A pair of opposing hopper guides 105 are slidably provided on the hopper guide shaft 102 and the separation roller shaft 104. 1
06 is a holder for holding the hopper guide 105 to the shaft 102. A pair of hoppers 108 are provided inside the hopper guide 105, which are pivotally supported by pins 107 on the left end side in FIG. 3 and on the front side as a printer. A compression spring 109 is interposed between the right end side of the hopper 108 and the hopper guide 105, and presses the hopper 108 upward. Therefore, hopper 10
8 is pivotally supported by a pin 107, so that the right end side rotates. There is a hopper shaft 110 below the pickup roller shaft 103, and the hopper 10
8 is engaged with a hopper shaft 110. The rotation of the hopper 108 is carried out by the sliding movement of a hopper shaft 110. A block 111 is slidably provided on the hopper shaft 110, and a shaft spring 112 is provided between the hopper guide 105 and the block 111 to position the block 111 in the middle of the hopper guide 105. Hopper 108 and block 1
A link 113 is provided between the two. The links are connected by pins 114 and are flexible. A F-shaped paper tray 115 is placed on the link 113, and its right end is engaged with the hopper shaft 110. Hopper 10
8 and paper tray 115 are arranged at the same horizontal position, and a plurality of sheets are placed on them. The symbol R in FIG. 4 indicates the width range in which the tickets are placed, and the hopper guide 105 also serves as a member that indicates the width range R. 1
16 is a lever shaft, and a lever 117 is provided between the lever shaft 116 and the hopper shaft 110. When the lever 117 with the lever shaft 116 as an axis pushes down the hopper shaft 110 against the compression spring 109, the hopper 108 and paper tray 115 also move downward. is fixed.

A clutch 120 is also provided on the shaft 104.

A clutch gear 121 is provided between the shafts 103 and 104. 122 is a conveyance roller, and 123 is a paper guide.

The automatic paper feeder 100 is attached to the printer main body in the hole 124 of the bracket 101, and at this time the clutch 1
It is connected to the drive source on the main body side via 20. shaft 1
03 and 104 rotate the rollers 118 and 119 in the same direction due to the presence of the clutch gear 121.

The lever 117 pushes down the hopper 108, paper tray 115, and the hopper 108, paper tray 115, and rollers 118.11.
Set the cut sheets in such a way that multiple sheets are sandwiched between the sheets. When the rollers 118 and 119 are rotated by the clutch 120, each ticket is separated from the automatic paper feeder one by one and sent toward the print head.

The rollers 118 and 119 follow the hopper guide 105, and FIG. 6 shows the hopper guide 1 on the right side.
05 moved to the left. By moving the hopper guide 105 left and right in this way, a space S can be formed, and this space S can be used to set continuous paper while the automatic paper feeder 100 is attached to the printer body 1. can. Also, if the paper tray 115 is removed, the depth of the printer will be shortened, so the stacker 40
It becomes easy to take out single sheets on the upper printing table and continuous sheets on the lower side of the stacker 40. Furthermore, continuous paper pull tractor 8
It is also easy to set up. This effect becomes even easier when the automatic paper feeder is removed.

In the above embodiment, the compression spring 109 is the block 11
1 and the bracket 101, or between the hopper 108 and the bracket 101.The hopper guide 105 may also be supported by the shafts 102 and 103.The conveyance roller 122 is driven by the clutch gear 121. This is done through interlocking gears.

〔Effect of the invention〕

As explained above, according to the present invention, single sheets.

It is possible to obtain a printer that has good operability for continuous paper, has a simple structure, and can easily print.

[Brief explanation of the drawing]

FIG. 1 is a schematic example showing a printer according to an embodiment of the present invention, and FIG. 1 is a perspective view of the printer shown in FIG.
Figure 4 is a cross-sectional view and top view of the automatic paper feeder used in the printer shown in Figure 1, Figure 5 is a cross-sectional view taken along the v--■ section line in Figure 3, and Figure 6 is a cross-sectional view of the automatic paper feeder used in the printer shown in Figure 1. The hopper guide of the automatic paper feeder shown in the figure is a top view of the hopper guide in a moved state, and FIGS. 7 to 9 are schematic diagrams showing a conventional printer. 1... Printer body, 2... Print head, 3...
Platen, 100... Automatic paper feeder, 101... Bracket, 102... Hopper guide shaft, 10
3...Pickup roller shaft, 104...Separation roller shaft, 105...Hopper guide, 10
8... Hopper, 110... Hopper shaft, 1
11...Block, 113...Link, 115...
・Paper tray, 118...Pickup roller, 119・
...Separation roller, 120...Clutch, 121...
Clutch gear, 122...conveyance roller. Tea 1121 Fig. 2 Leather Fig. 3 Fig. 4 Fig. I5 No. 7 Mouth No. 9

Claims (1)

[Claims] 1. In a printer capable of printing on both single sheets and continuous paper, a table on which the sheets are placed is provided in front of the printing section, and under this table there is provided a table that can be attached to and detached from the printer body. An automatic sheet feeding device for single sheets is provided, and a guide section for inserting continuous sheets into the printing section is provided below the automatic sheet feeding device when the automatic sheet feeding device is installed in the printer body. A slip conveyance/discharge mechanism and a continuous paper drive means are provided below the conveyance/discharge mechanism, and the automatic paper feeding device has an opposite one.
A hopper guide shaft, a pickup roller shaft, and a separation roller shaft are provided side by side between the pair of brackets, a hopper shaft is further provided below the pickup roller shaft so as to be movable in the vertical direction, and the pair of hopper guides are connected to the hopper guide shaft. and a pickup roller shaft or a separation roller shaft, each of a pair of hoppers is pivotally supported by each hopper guide between both hopper guides, and the printing section side of each hopper is engaged with the hopper shaft, A block is slidably provided on the hopper shaft, a pair of links are provided between each hopper and the block, a compression spring is provided between the hopper and the hopper guide or bracket, and a pickup roller shaft and a pair of links are provided between each hopper and the block. The separation roller shaft is rotatable relative to the bracket, and both shafts are provided with a pickup roller and separation roller. Furthermore, there is an idle gear between both shafts, and a clutch is provided on the separation roller and the shaft. 1. A printer characterized in that the clutch is connected to a drive source within the printer main body via a clutch gear. 2. The printer according to claim 1, wherein an end portion of the paper tray engages with a hopper shaft, and a central portion is placed on a pair of links. 3. The printer according to claim 1, wherein the automatic paper feeding device is mounted by engaging the locking portion of the bracket with the printer main body. 4. The printer according to claim 1, characterized in that a shaft spring is interposed between each hopper guide and the block. 5. The printer according to claim 1, wherein each hopper guide is slidably supported on each shaft.