JP3472148B2 - Booklet media printing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a booklet medium printing apparatus, and more particularly to a booklet printing apparatus for performing a printing operation on a spread page of a booklet medium such as a passbook so as to be orthogonal to a center hold unit. It is a useful technique. In this specification, the printing is referred to as “vertical printing”.
Such a passbook printed vertically is called a "vertical passbook". 2. Description of the Related Art FIG. 6 is an explanatory view of a printing mechanism of a passbook bookkeeping apparatus as a conventional booklet medium printing apparatus. In this printing mechanism, the vertical passbook is printed vertically by a platen (left) 9a, a platen (center) 9b, and a platen (right) 9c. The operation is performed while the print head 2 moves in both directions. Each platen 9 has a spring 10
a, 10b, and 10c are urged upward by respective springs 10. [0003] However, in the above-described printing mechanism, when printing is performed in the direction of a thin page or a thick page in a state where the thickness of the left and right pages is extremely different, the print head is applied to the thick page. When applied, a reaction force is generated that raises the print head (see the arrow in FIG. 1), and an appropriate impact is obtained until the booklet medium such as a passbook and the platen are lowered to the printing reference position by overcoming the reaction force. However, there is a problem of poor printing quality such that printing cannot be performed or printing becomes thin. SUMMARY OF THE INVENTION A booklet medium printing apparatus according to the present invention is characterized in that left and right page
Medium having printing means for performing printing operation by moving in the direction
In the character device, a thickness detecting means for detecting the thickness of the left and right pages of the booklet medium, and the thickness detecting means detects the thickness .
Number where the difference in thickness between the left and right pages does not affect printing
If it exceeds the value, print operation from the thicker page side ,
If the difference is less than the value that does not affect printing, print
Control means for controlling the operation from both directions
The shall be the feature. Embodiments of the present invention will be described below with reference to the drawings. Here, a passbook will be described as an example of a booklet, and a passbook entry device as a booklet medium printing device will be described as an example, but the present invention is not limited thereto. FIG. 1 is a schematic diagram of a printing mechanism of a passbook entry device according to an embodiment. In this printing mechanism, a print head 2 for printing on a passbook 1 is provided movably to both sides in the drawing.
The passbook 1 is transported between an upper guide 3 and a lower guide 4. The print head 2 has a function of transmitting power through a pulse motor and a belt (not shown) and performing printing on the passbook 1 while moving left and right. Transport roller 5
Is composed of a transport roller (left) 5a and a transport roller (right) 5b, and the power from a pulse motor (not shown) is transmitted via a shaft 6, so that the passbook 1 is perpendicular to the printing direction.
Has the function of transporting. The passbook clamp / transport roller 7 is composed of a passbook clamp / transport roller (left) 7a and a passbook clamp / transport roller ( right ) 7b. It is disposed at a position corresponding to the (left) 5a and the transport roller (right) 5b, and has a mechanism for pressing against the transport roller 5 by a spring (not shown). As described above, the power from the pulse motor (not shown) is transmitted in a state where the passbook clamp and the transport roller 7 are pressed against the transport roller 5, and the passbook 1 is transported. The roller displacement detector 8 comprises a roller displacement detector ( left ) 8a and a roller displacement detector ( right ) 8b.
When the passbook clamp and transport roller (left) 7a and the passbook clamp and transport roller ( right ) 7b clamp the passbook 1,
It has a function of detecting the amount of displacement (the amount of displacement) of each of the passbook clamp and transport roller (left) 7a and the passbook clamp and transport roller (right) 7b. Here, the amount of displacement of the passbook clamp and the transport roller (left) 7a is the same as the passbook 1 in the figure.
, And the displacement amount of the passbook clamp and the transport roller (right) 7b represents the right thickness of the passbook 1. Therefore, the passbook clamp and the transport roller (left) 7
The difference between the amount of displacement of the passbook 1 and the thickness of the right and left sides of the passbook 1 is the difference between the displacement amounts of the passbook clamp and the transport roller (right) 7b. In addition,
The roller displacement detector 8 is, for example, a mechanism that irradiates the passbook clamp and the transport roller 7 with light and obtains a difference in displacement amount based on a change in the incident angle of the reflected light. That is, passbook 1
If there is a difference between the left and right thicknesses, it is possible to determine which of the left and right sides is thicker by detecting the incident angle. The platen 9 is composed of a platen (left) 9a, a platen (center) 9b, and a platen (right) 9c. The platen 9 is connected to a solenoid (not shown) and has a mechanism that can be lowered at the same time. Turn on and lower,
It has a function to turn off and raise the solenoid when printing. The platen (left) 9a and the platen (center) 9
b and the platen (right) 9c are independent of each other, and have a mechanism that can operate independently according to the thickness of the passbook 1 in a printing state (solenoid off). Also,
The platen 9 is urged upward in the figure by a spring 10, and is pushed up to a printing reference position when the solenoid is turned off. FIG. 2 shows a block diagram of a printing mechanism control device of the passbook entry device according to the embodiment. This printing mechanism control device is configured by connecting the roller displacement detectors 8a and 8b, a print head control unit 11, and a transport drive control unit 12 to a main control unit 13. The print head control unit 11 controls the operation of the print head 2. The transport drive controller 12
Controls the operation of the transport roller 5, the passbook clamp, the transport roller 7, and the platen 9 to transport the passbook 1. The main control unit 13 controls the entire passbook bookkeeping apparatus. In the present embodiment, in particular, the main control unit 13 obtains a difference between the displacement amounts from the roller displacement detector 8 and determines whether the left or right side of the passbook 1 is thicker. Then, the printing direction is determined as described later.
The printing direction at the time of this printing is stored in a storage unit (not shown), and the printing direction is switched at the next printing according to the difference between the left and right sides of the passbook 1. Next, the operation of the printing mechanism according to the embodiment will be described. First, in FIG. 1, when the inhaled passbook 1 is conveyed by the conveying roller 5 and the passbook clamp and the conveying roller 7 by a pulse motor (not shown), the main control unit 13 shown in FIG.
Calculates the difference between the amount of displacement from the roller displacement detector 8 and
It is determined which of the left and right is thicker, and the printing direction is determined as described later. The decision depends on the thickness on the left side of passbook 1,
It is determined whether the difference from the thickness on the right side is larger or smaller than an arbitrary value Y. Here, Y is an arbitrary value, and the passbook 1
May be set appropriately so that the step between the left and right pages does not affect the printing. FIGS. 3 to 5 show operation explanatory diagrams of the printing mechanism of the embodiment. In FIG. 3, assuming that the thickness A on the left side and the thickness B on the right side of the passbook 1, AB> Y is satisfied. Therefore, the main control unit 1 determines from right to left as indicated by a white arrow in the drawing. The print head 2 is moved toward to print. In FIG. 4, assuming a thickness C on the left side and a thickness D on the right side of the passbook 1,
Since CD−Y is satisfied, the main control unit 1 performs printing by moving the print head 2 in both the left and right directions as indicated by white arrows in the drawing. 5, the left side in the thickness E of the passbook 1, when the right thickness F, F - E> for Y is satisfied,
The main control unit 1 performs printing by moving the print head 2 from right to left as indicated by a white arrow in the drawing. According to the passbook entry device of the above embodiment,
The difference between the left and right thicknesses of the passbook 1 is detected, and the printing direction is determined according to the difference, so that the printing is performed in the thin or thick page direction with the left and right pages extremely different. Without printing, printing can be performed in the direction from a thick page to a thin page. For this reason, it is possible to obtain an effect that a high-quality printing operation can be performed with an appropriate impact regardless of a difference in the thickness of the page of the passbook. As described above, according to the booklet medium printing apparatus of the present invention, the thickness of the left and right pages of the spread page of the booklet medium is detected, and the difference between the left and right pages is printed. Shadow
If the value exceeds the value that does not affect the printing, the printing operation is started from the thicker page side, so that high quality printing operation with appropriate impact can be performed regardless of the difference in thickness between the left and right pages of the spread page of the booklet medium The effect is obtained.

[Brief description of the drawings] FIG. 1 is a schematic diagram of a printing mechanism according to an embodiment. FIG. 2 is a block diagram of a printing mechanism control device according to the embodiment; FIG. 3 is a diagram illustrating the operation of the printing mechanism according to the embodiment; FIG. 4 is a diagram illustrating the operation of the printing mechanism according to the embodiment; FIG. 5 is a diagram illustrating the operation of the printing mechanism according to the embodiment; FIG. 6 is an explanatory diagram of a conventional printing mechanism. [Explanation of symbols] 1 passbook 2 Print head 7 Passbook clamps and transport rollers 8 Roller displacement detector 9 Platen 10 Spring

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Isao Kitabatake 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (56) References JP-A-9-300773 (JP, A) JP JP-A-7-144455 (JP, A) JP-A-6-55786 (JP, A) JP-A-4-163,075 (JP, A) JP-A-63-179771 (JP, A) JP-A-62-164130 (JP) , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B41J 19/00-19/74 B41J 11/20 B41J 25/304-25/316 G06F 17/60 G07D 9/00

Claims (1)

(57) against the facing pages of the Claims 1] book child media, left and right
In the booklet medium printing apparatus having a printing means for printing operation by moving the page direction, and thickness sensing means for detecting the left and right page thickness di of the booklet medium, the right and left of the thickness detection unit detects Page thickness
If the difference exceeds a value that does not affect printing, the printing operation is started from the thicker page side , and the difference affects printing.
If the number is less than or equal to the value, printing is performed from both directions.
A booklet medium printing device, comprising a control means for controlling the printing.