JPH0323974A - Medium setting mechanism - Google Patents

Abstract

PURPOSE:To simplify a mechanism and to achieve the miniaturization of an apparatus and the improvement of cost by driving the first moving means allowing a platen to advance and recede and the second moving means closing and opening feed rollers by the same drive source. CONSTITUTION:When a platen 6 is allowed to recede by the first moving means 61 before the medium 1 fed along a feed passage 3 arrives at the position of the platen 6, the second moving means 8 of the same drive source is operated in connection with the first moving means 6 to open the second feed rollers 12. Then, the medium 1 is transferred in the direction reaching the part above the platen 6 by the first feed rollers 11 to be set between the platen 6 and a printing head 7 and, thereafter, the platen 6 is allowed to advance in the direction of the printing head 7 by the first moving means 61 and the second moving means 8 is operated in connection with the first moving means 61 to close the second feed rollers 12 to set the medium 1 between the platen 6 and the printing head 7. By this method, since the first and second moving means 61, 8 can be driven by a common drive source, a mechanism becomes simple.

Description

[Detailed Description of the Invention] [Summary] A media set that relates to a printer that prints on media of different thicknesses, such as bankbooks, and that can share the drive source of the platen moving mechanism and the drive roller retraction mechanism. Regarding the mechanism, it is an object of the present invention to provide a printer that can set media of different thicknesses between a platen and a print head using a single drive source, and that can reduce the size of the device and improve costs with a simple mechanism. The purpose is to set the gap between the medium and the print head according to the thickness of the medium set between the platen and the print head. A printer that performs printing includes: a first moving means for advancing/retracting the platen in the direction of the print head; first and second feed rollers provided facing each other at the front and back of the platen in a conveyance path; The second feeding roller shares a driving source with the first moving means, and moves at least one opposing second feed roller on the opposite side of the platen with respect to the medium transport direction in conjunction with the advancement/retraction of the platen by the first moving means. , a second moving means for moving the platen in the same direction as the advance/retreat of the platen, the first moving means moves the platen backward, and the second moving means interlocked therewith moves the second feed roller to the oven. after the media is transported above the platen by the first feed roller.
The first moving means moves the replaten forward in the direction of the print head, and the second moving means interlocked therewith closes the second feed roller.

[Industrial application field]

The present invention relates to a printer that prints on media of different thicknesses, such as bankbooks, and relates to a media setting mechanism that can use a common driving source for advancing and retracting a platen and a feeding roller retraction mechanism.

Recently, automatic deposit payment system 1 (
Automatic Teller Machine:
Automated transaction devices such as ATMs (hereinafter referred to as ATMs) and teller-operated counter-recording machines have built-in passbook printers that record transaction details in passbooks.

A passbook printer may also print on thin paper slips in addition to passbooks. Therefore, the distance between the print head tip and the media surface depends on the paper thickness. In other words, it is necessary to set the print gap optimally in terms of print quality, and also to ensure that when the passbook is set between the print head and the platen, the passed passbook or slip will be smoothly caught in the feed roller on the opposite side of the platen. It is necessary to open the feed roller, and the device is equipped with a platen moving mechanism and a feed roller retraction mechanism, but each has its own drive source, making the device large and costly. Therefore, a mechanism to improve this problem is desired.

[Conventional technology]

FIG. 4 is a side view illustrating a passbook printer, showing a transport path 3a that continues from the insertion slot 2 into which the passbook 1a is inserted, and a read/write (hereinafter referred to as R/W) that reads recorded data from the magnetic stripe of the passbook 1a using a magnetic head. section 4, printer section 5, and a feed roller R for transporting the passbook 1a. ~R3+ Presser rollers R4 to R6, sensor Sl, and reading sensor S2 are provided. The feed rollers R, ~R, are connected to the pulse motor.

Further, a detailed diagram of the printer section 5 is shown in FIGS. 5(a) and 0)). In the figure, 6a is a platen, 7a is a print head, 30 is a movable guide plate, 60 is a cam follower provided at both ends of the platen 6a in the longitudinal direction, 61a, 61b is a cam 62 is a rotating shaft, and 63 is a cam 61a, 61b. A coaxial pulley 64, a belt 70 a head mask, M2 a motor, 8a a lever, 9 a spring, 10 a plunger magnet (hereinafter referred to as PM), and S3 and S4 sensors.

Sensors S1 to S4, reading sensor S2, old pulse motor,
M2 and PMIO are connected to a control section (not shown). The movable guide plate 30 is connected to a drive source (not shown), and normally closes the top surface of the printer unit 5 as shown by the broken line in the figure to guide the entry of the bankbook 1a.

Further, the print head 7a is driven for printing while moving by a space motor (not shown) that is controlled by a control section.

With this structure, when the teller inserts the passbook 1a from the insertion slot 2 in the direction of arrow A, the tip is detected by the sensor S1, and the pulse motor MLM2 is driven. First, the passbook 1a is conveyed by the rotation of the feed rollers R1 to R3 by the drive of the pulse motor arm, and the record data of the account number and balance amount are read from the magnetic stripe by the R/W section 4.

In parallel with this, the cam 61 is driven by the pulse motor M2.
a and 61b are rotated in the direction of arrow D, and the platen 6a is retracted from the conveyance path 3. Then, the bankbook 1a is transferred, and the printable lines are set in the printer section 5 by the detection of the page mark and already printed lines by the reading sensor S2. At this time,
When the sensor S3 detects the tip of the passbook 1a, PMIO is excited, the lever 8a rotates, the presser roller R6 is opened, the passbook 1a passes through the positions of the feed roller R3 and the presser roller R6, and the sensor S When detected, PMIO is de-energized, the press roller R6 is closed, and the feed roller R3 generally feeds the printable line to a printable line.

Then, the movable guide plate 30 moves back as shown by the solid line in the figure by a drive mechanism (not shown) to open the top surface of the printer unit 5, and at the same time, the excitation of PMIO is released and the printer 8a is moved by the elasticity of the spring 9. Rotate and presser roller R6
is closed, and the pulse motor h2 is driven in the reverse direction so that the cam 6]. a, 61b rotate in the direction of arrow C, the platen 6a is pushed up, the platen 6a presses the passbook 1a against the print head 7a, a pressure sensor (not shown) detects the predetermined pressing force, and the thickness is detected. Based on the detection signal, the pulse motor N2 rotates by a predetermined number of steps, the cams 61a and 61b rotate in the direction of arrow D, the platen 6a moves downward by a dimension corresponding to the predetermined number of steps, and the bankbook 1a is printed. The gap of the head 7a is set appropriately.

Next, when the teller enters transaction data from a keyboard (not shown), it is sent to a host computer (not shown) along with account number and balance record data, where it is processed.
When the record data etc. are responded, the printer section 5 prints the passbook 1.
Transaction data including the deposit balance is printed on a.

When printing is completed, the passbook 1a is sent in the direction of arrow B, and then
/W part 4 stops, balance data of the transaction result is written on the magnetic stripe, and when the writing is completed, the passbook 1a is ejected from the insertion slot 2.

In this way, the passbook 1a is set in the printer section 5 and printing is performed.

Instead of the movable guide plate 30 described above, Conston springs 31 are fixed to both sides of the print head 7a as shown in FIG.
, 32b are disposed to cover the top surface of the printer section 5 and guide the entry of the passbook 1a.

[Problem to be solved by the invention]

According to the conventional method described above, when inserting a bankbook into the printer section, the cam mechanism that moves the platen away from/advances the conveyance path uses a pulse motor as its driving source, and the lever mechanism that opens the presser roller uses the PM as its driving source. , each of which is provided with a driving source, the device is large in size, and there are problems in that the cost is 1 and high.

The present invention provides a printer that can set media of different thicknesses between a platen and a print head using a single drive source, and that can reduce the size of the device and improve cost efficiency with a simple mechanism. It is intended to.

Means to solve problem C] FIG. 1 is a diagram showing the principle structure of the present invention.

In the figure, 1 is a medium, 3 is a conveyance path, 6 is a platen, and 7
is a print head, 61 is a moving means for advancing and retracting the platen 6 in the direction of the print head 7, and 11.12 is a first feed roller provided oppositely before and after the platen 6 and the print head in the conveyance path 3. and second
The feed roller 8 shares a driving source with the first moving stage 61, and is linked to the advancement and retreat of the platen 6 by the first moving means 61.
This is a second moving means that moves at least one of the opposing second feed rollers 12 on the opposite side of the platen 6 with respect to the direction in which the medium 1 is transported in the same direction as the platen 6 moves forward and backward.

Therefore, the platen 6 is retracted from the print head 7 by the first moving means 61, and in conjunction therewith, the second moving stage 8
to open the second feed roller 12, and after the medium 1 is transferred above the platen 6 by the first feed roller 11, the platen 6 is advanced in the direction of the print hand 7 by the first moving means 61. In conjunction with this, the second moving means 810 is configured to close the second feed roller 12.

[Effect]

When the platen 6 is moved backward by the first moving stage 61 before the medium l transported through the transport path 3 reaches the position of the platen 6, the second moving means 8 of the same drive source is interlocked and moved to the position of the platen 6. Open the No. 2 feed roller 12. Therefore, after the medium 1 is transferred upward to the platen 6 by the first feed roller H and set between the platen 6 and the print head 7,
The first moving stage 61 advances the platen 6 in the direction of the print head 7, and the second moving means 8 interlocks with this to close the second feed roller 12 and move the medium 1 to the platen 6.
and print head 7.

In this way, the first moving means 61 and the second moving means 8 can be driven by a common drive source, which simplifies the mechanism, making it possible to reduce the size of the device and improve costs. .

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 2 and 3. The same reference numerals indicate the same objects throughout the figures.

FIG. 2 is a diagram showing the configuration of the printer unit of the passbook printer according to the embodiment of the present invention, in which (a) is a side view of the printer unit, (b) is a plan view of the cam mechanism and lever mechanism, and (C) is the feed A plan view of the roller section and FIG. 3 are explanatory diagrams of the embodiment. In FIG. 2, the same names as in FIG. , the first feed roller 11, and the second feed roller 12, respectively. Further, the cams 61c and 61d in FIG. 2 correspond to the first 1,000-stage movement 61 in FIG. It corresponds to

As shown in FIGS. 2(a) and (1)), the printer section 5
In a, cams 61c and 61d and a roller opening/closing cam 65a are coaxially fixed to a rotating shaft 62. The presser roller R6 is held at the end of the lever 8b, and the lever 8b is rotatably supported by a rotating shaft 13 held by a bearing 31 provided on the lower surface of the lower plate of the conveyance path 3a11 12. . An engaging portion 14 is provided at the other end of the lever 8b, and the lever 8b is biased in the direction of arrow H by a spring 15. Further, one end of the lever 8c is coaxially and rotatably supported by the rotation shaft 13, and the other end is in contact with the roller opening/closing cam 65a via the cam follower 16. An engaging portion l7 is provided at an intermediate position of the lever 8c, and is configured to engage with the engaging portion 14 of the lever 8b.

Further, at the beginning of the descent of the platen 6a due to the rotation of the cams 61c, 61d in the direction of the arrow E, the cams 61c, 61d
The roller opening/closing cam 65a is shaped so that the lever 8c starts rotating after the lever 8c has rotated by a predetermined angle. Then, as the lever 8c rotates due to the rotation of the roller opening/closing cam 65a in the direction of arrow E, the engaging portion 17 engages with the engaging portion 14, and the lever 8c is rotated in the direction of arrow G about the rotation shaft 13. is configured to do so.

Further, as shown in FIGS. 2(a) and (C), a plurality of impellers 19 are rotatably provided on the rotating shaft 18 to which the feed reroller R3 is fixed, and the impellers 19 are made of rubber on the outer periphery of the small diameter roller. The blades are attached radially, and the feed roller R3
The pulse motor rotates the feed roller R3 and the rotation speed converting mechanism 21 causes the feed reroll roller R3 to rotate at a higher speed and in the same direction.

With this structure, when the passbook 1a is inserted through the insertion slot 2 and the tip is detected by the sensor S1, the feed rerollers R1 to R3 are rotated by the drive of the pulse motor, and the passbook 1a is conveyed. While reading is performed by the R/W unit 4, the rotation shaft 62 is rotated by the drive of the pulse motor M2, and the cam 65c is rotated as shown in FIG. 3(a).
, 65d and the roller opening/closing cam 65a rotate in the direction of the arrow E, the platen 6a starts to retreat, a predetermined timing ring is shifted, and the lever 8C rotates in conjunction with this, and the engaging portion 17 engages with the engaging portion 14 and the lever 8b
is rotated about the rotation shaft 13 in the direction of arrow G, and the presser roller R6 is opened.

At this time, as shown in FIG. 3(b), since the feed roller R3 is rotating, the impeller 19 is also rotating, and the bankbook 1
When a is conveyed to the printer section 5a, the impeller 1 rotating at high speed passes through the raised tip of the passbook l3 14.
Knock it down with the blade of 9 and go to ffjij
It is possible to prevent paper jams from popping out into the space above the conveyance path 3a of the printer section 5a, and to prevent wrinkles from occurring when printing on thin paper such as slips.

The tip of the thread 11M1a that was sent normally in this way is transferred to the sensor S4.
is detected, the pulse motor M2 rotates in the reverse direction, and the cam 6
1c, 61d and the roller opening/closing cam 65a rotate in the direction of arrow F, and the platen 6a is pushed up. At the same time, the reher 80 rotates to release the engagement between the engaging portions 17 and 15, and the spring 5 Due to the elasticity, the reher 8b rotates in the direction of the arrow H around the rotating shaft 3, and the presser roller R6 is closed.

The platen 6a presses the passbook 1a against the print heel 7a, detects the predetermined pressure, rotates the pulse motor M2 in the direction of arrow E by a predetermined number of steps, lowers the platen 6a, and sets an appropriate print pressure. In this case,
Even if the platen 6a is slightly lowered, the presser cams 61c and 61d rotate within a predetermined angle, so the presser roller R6 maintains the closed state.

In this way, the advancing/retreating of the platen 6a and the closing/opening of the presser roller R6 can be operated by the same drive source with a simple mechanism, thereby making it possible to reduce the size of the apparatus and improve costs. Also, the printer section 5
When the passbook 1a is conveyed to the passbook 1a, the impeller 19 rotating at high speed coaxially with the feed roller R3 knocks off the raised tip of the passbook 1a downward, thereby preventing jamming or wrinkles in thin paper such as the passbook 1a or slips. can be prevented.

[Effects of the Invention] As explained above, according to the present invention, the first moving means for advancing and retracting the platen and the second moving means for closing and opening the feed roller are driven by the same drive source. This has the effect of simplifying the mechanism, reducing the size of the device, and improving cost I.

[Brief explanation of drawings]

Figure 1 is a diagram of the principle structure of the present invention, Figure 2 is a diagram of the printer section of a passbook printer showing an embodiment of the invention, Figure 3 is an explanatory diagram of the embodiment, and Figure 4 is a diagram of the book. FIG. 5 is an internal side view of a passbook printer to which the invention is applicable, FIG. 5 is a layout diagram of a conventional example without the printer section shown, and FIG. 6 is a plan view showing a different example of a passbook guide. In the figure, 1 is a medium, la is a passbook, 3 and 3a are conveyance paths, 6 and 6a are platens, 7 and 7a are print heads, 8 is a second moving means, 88 to 8c are lehars, and 11 is a first feeder. roller, 12 is a second feed roller, 19 is an impeller, 61 is a first moving means, 61a
, 61b are cams, R1 to R3 are feeding rollers, and R4 to R6 are presser rollers. 17 -486 1Mi% ±≧

Claims (1)

[Scope of Claims] Media (1) of different thicknesses are conveyed through the conveyance path (3) by opposing feed rollers that protrude from both sides into the conveyance path (3) and are transferred to a platen (6) and a print head (7). ) in which the printer prints using the print head (7), the printer comprises: a first moving means (61) for advancing and retracting the platen (6) in the direction of the print head (7); first feed rollers (11) provided oppositely before and after the platen (6) and the print head (7) of the conveyance path (3);
and a second feed roller (12), and the first moving means (
61), and in conjunction with the advancement and retreat of the platen (6) by the first moving means (61), the platen (6) is moved in the direction in which the medium (1) is transported. a second moving means (8) for moving at least one opposing second feed roller (12) on the opposite side of the second feed roller (12) in the same direction as the advance and retreat of the platen (6); The moving means (61) causes the platen (6) to retreat from the print head (7), and in conjunction with this, the second moving means (8) moves the second feed roller (12)
) in the same direction, and after the medium (1) is transported above the platen (6) by the first feed roller (11), the first moving means (61) moves the platen ( 6) is moved forward in the direction of the print head (7), and in conjunction with this, the second feed roller (12) is moved in the same direction by the second moving means (8). Media set mechanism.