JPS58217383A - Initial position setting system of carriage - Google Patents

Abstract

PURPOSE:To obtain an initial position setting system for a carriage for detecting obstacle in the section as well as control the moving of the carriage to its initial position by using a system in which the carriage is moved once to a reference position at the right end, inversed and then moved fully over all section to set it at the initial position on the left end. CONSTITUTION:When a carriage 4 is moved from any stop position (a) on the axle 3 between left and right-handed frames 1 and 2 to a reference position (c) on the left end and set there, control is made such that it passes without fail through all moving section and reaches there while confirming the presence of obstacle. Therefore, it is tested on whether the moving amount is normal or abnormal by a manner that it can pass through a path 1' from the position (a), reaches right end (b), reaches start position (a) through a path 2' shown by broken line by inversion, and then reaches the reference position (c) on the left end through the path 3'. In this case, since the path 2' becomes the return path of the path 1' and there is no need to confirm the presence of obstacle, high- speed drive of the carriage can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to an initial position setting method for controlling the movement of a printer carriage from an arbitrary stop position in a space movement section to an initial position.

(2) Between the conventional technology and the conventional serial printer, the carriage position is determined at a certain point on the carriage movement section, and printing is performed based on this position. This reference position is generally located at the left end. Conventionally, this carriage can be moved from any stop position during the movement section! When the ts is turned on or when the operation is necessary, the carriage is moved directly to a reference position near the left end, and the traveling position of the carriage is determined by detecting this reference position. Figure 1 Pigeon (Z
) shows a schematic diagram of the 7m alignment, in which the carriage 4 is configured to move on the axis 6 of the left and right frames 1-2, but when initializing from any stopping position on this axis 6, , a direct route (■) to the reference position tiL5 near the left frame 2 was used. Therefore, as shown in the figure, even if there is a fault W*6 on the right side of the carriage position and printing is not possible, the machine will not be able to detect it, and will receive the manual information after the initial settings and print. Failures were often discovered only during execution.

(3) Purpose of the Invention The present invention provides a nine-carriage initial position setting method in which when the carriage of a printer is moved from an arbitrary stop position in a space movement section to an initial position and is controlled, obstacles in the section are checked at the same time. That's true.

(4) Structure of the Invention In order to achieve the above object, the carriage initial position setting method of the present invention involves rounding the printer carriage to the initial position from an arbitrary position 1f in the space movement section, and then moving it once to the reference position at the right end. It is characterized in that after a round, it is moved all the way through the entire interval and set at the initial position at the left end.

(5) @Akira's Embodiment ts Figure 2 is a schematic explanatory diagram of the present invention, and Figure 5 is a flowchart showing more detailed operation.

In FIG. 2, the carriage 4 is moved from an arbitrary stop position Φ on the left and right frame 1-2 threshold III+6 to the left end reference position l.
The 4 digits are set by moving in the t direction, not directly as in the conventional example shown in Fig. 1, but always in the entire φ excitation area +! Ji k m Yushi 1f
Check the presence or absence of an object, etc. and control it to reach it. Therefore, from position ■ through route ■) to the right end @, 4′i n ,
The vehicle is reversed to reach the start position (2) along the broken line route (2), and further reaches the reference position 0 at the left end via the route (3), and a test is performed to see if this movement l1hf is normal. In this case, the route (■) is driven at high speed since it is not necessary to check for any faults on the return trip of the route (2).

Detection of @ and 6 is performed by a sensor, and "C" may also be used, but in this embodiment, the pulse P generated as the carriage moves is stopped when the carriage comes into contact with the frame.

To explain the above using the flowchart of the LIS diagram, in order for the carriage 4 to move 4!1 to the right from an arbitrary position, first the right movement amount counter t is cleared, and from the position tIt■, the carriage 4 moves rightward along the path ■ at low speed. Moving.

Then, the pulse P generated in synchronization with the movement of the carriage 4 causes the right 4I! Step the excitation amount C/R. It is checked whether the amount of rightward movement is within the specified value p, and if it is greater, it is assumed that there is an error in the moving wb mechanism and error processing is performed.

When it is detected that the pulse P does not return within the specified time and reaches the position @ of right frame 2 or comes into contact with an obstacle, it is reversed and the left movement amount counter shows the value from right frame 2 to left frame 1. Set the number t of 6 pulses P by moving. Moves from position @ along path ■ at speed ＾, and every time a pulse P occurs, subtracts the right and left movement amount counters,
When passing position Φ - Fake ridge 4f: Switch to low speed movement. Route along F route ■ (same as ρ, regulation 9) (
Check whether there is an error by checking if Lus P is returning □1 or not. If air is detected, perform air treatment, and if it freezes normally)
Move left to the deer where Kurusu P occurs, 1 ib, 1 counter i decrease '(V&, left flare - -
t#i knows that time 1 has been reached.

As mentioned above, the feature of this book 9i1811 is that when setting up the initial position 1 of the vehicle, it simultaneously checks the entire moving section at low speed for the presence of obstacles.
1f is fast moving wJ (this is to save time).

FIG. 4 is an explanatory diagram 1 of the actual drawing (2) of the present invention for realizing 14fJ6-9 flow +>A.

2 in the figure, when a space initial position setting command is given to the space control circuit 10, the right movement amount counter 11 is cleared and the comparator register (1) 13 indicates that the carriage 4 has moved from the left frame 1 to the right frame 2t. Set 11B to be counted.

Open the right input of AND gate 19.22. Further, the up/down signal specifies up, and the right movement amount counter 11 indicates the pulse P of the distant relative sensor 25 directly connected to the motor 24.
When detected, the count increases. This value A is compared by a comparator (1) 15. Here, until A crosses B, the high-speed signal of AND20 remains OFF', and space control circuit 10 drives carriage 4 at low speed. This 1l
If iA>8, AND19 sends a Sheller signal.

The pulse P from the centimeter 25 triggers the seventh table 17 to monitor the pulse P period, and if the carriage 4 contacts the right frame 2t or an obstacle and the pulse P is not generated for a certain period of time, the I/Pter 18 and AND gate 22
The operation sends a signal to the space control # circuit 10 to stop the vehicle carriage 4.

At this time, the position may be an obstacle or right frame 2, or 11('
In the case where the movement is impossible, it is determined that there is no time to complete the next movement to the left. The space control circuit 10 clears the comparator registers (1) 15 and (2) 14, and sets the left movement amount kak/r 12 to the value C that is counted when the carriage 4 moves from the left frame 1 to the right frame 2t. , the direction is specified to the left), and the up/down signal specifies the down direction, and the clock pulse P is detected for seven counts, and the carriage 4t is driven to the left.

In this case, since A>B in the comparator (1) 15, the high speed signal of the AND gate 20 is turned ON9, and the space control circuit 10 drives the carriage 4 at high speed.

When the carriage 4 moves, the right movement amount counter 11 and the left movement amount counter 12 count down, and when the right movement amount counter 11 reaches 0'', the output of the comparator (1) 15 turns OFF.Comparator (1) 15 output is O
When it becomes FF, the high speed signal of the AND gate 20 is designated as OFF, and the control circuit 10 moves the carriage 4 to the left at a low speed. If you move further, the left movement amount counter / 12
becomes 0″″. Then, the relationship between C/C and the value of comparator register (2) 14 satisfies D≧C, and
The gate 21 is turned on and a space initial position setting signal is sent to the control circuit *io. As a result, the secondary carriage 4 is stopped and the initial position setting is completed. In addition, during the leftward movement, the pulse P
If the cycle of is longer than the output time of the monostable 17, the space control # circuit determines that an obstacle has been contacted based on the AND25 (D output) and performs error processing.

(6) More than the effect of invention i1! As explained above, according to the present invention, when controlling the printer's intermediate shaft from an arbitrary stop position in the space movement section to the initial position, the obstacle 4 of the entire section is simultaneously controlled.
Perform rostral parsimony and further overlap routes with high-speed migration Mib6
It was designed to allow As a result, an abnormality in the middle spear operation can be discovered before the input 1 #li money receiver 1g is executed, so there is no need to waste printing paper or waste the printing execution time as in the prior art. Furthermore, in addition to reducing the confirmation time for all sections as much as possible by ensuring high-speed movement, the detection of the present invention also has the advantage of simultaneously inspecting the normality of other moving parts.

[Brief explanation of drawings]

Figure Is1 is an explanatory diagram of the conventional example, Figure 2 is an explanatory diagram of the principle of the present invention, Figure 6 is a flowchart showing the operation of the present invention, and Figure 4 is an explanatory diagram of the configuration of the embodiment of the present invention. 1 and 2 are frames, 6 is an axis, 4 is a bull's-eye, 6 is an obstacle, 10 is a space system #jump, 11 is a right shift lIb1 counter, 12 is a left movement amount counter, 13.14 is a comparator register ,1
5.16 is a comparator, 17 is a monostable, 18
is an inverter, 19 to 23 are AND gates, 24 is a motor, and 25 is a sensor. Patent applicant Fujitsu Ltd. sub-agent Patent attorney 1) Zen Saka 1 Figure 1-$2

Claims (2)

[Claims] (1) Inside the printer In order to set the printer from any position in the space movement section to the initial position, first move it to the rightmost reference position, then reverse it, move the entire section, and set it to the leftmost initial position. The carriage initial position setting method is characterized by: (2) The carriage initial position setting method according to claim 1, characterized in that the route after the overlapping section in the moving route of the front e-carriage is moved at high speed.