JPS58142873A - Controller for printing pressure - Google Patents

Abstract

PURPOSE:To manufacture the title device, which can correspond sufficiently to the variety of type and cost thereof is low, by identifying and selecting the only printing information of a first memory storage, in which a plurality of printing informations are housed, by a second memory storage and outputting signals modifying printing pressure informations. CONSTITUTION:When the type number is applied in order to print a character ''A'' as the input of an identification table IDTBL, an identification information 1110 is outputted. The gate of an 8 gate AND gate AND is opened because a most left bit is 1 at that time. On the other hand, the quantity of increase memorized into a quorum item container is applied to one input of a full adder FA as it is because the output of the constant receiver is applied to the input of the 8 gate AND gate. Since 25 is housed into the quorum item container as the quantity of increase, 150+25=175 is outputted as the output of the full adder, a programmable monostable multivibrator PMLT becomes active for 3.5msec, and a printing hammer HMR is sprung out in the direction of the arrow for 3.5msec. When a left end bit is 0 as the case of the printing of the character ''A'', the printing hammer HMR is sprung out for 3msec.

Description

DETAILED DESCRIPTION OF THE INVENTION The description relates to an impact-type printing device, and more specifically, to the printing control of a printing device that prints characters toward paper mK via a printing ribbon. I as a printed word! When using typefaces called daisy wheels as shown in Figure 1, the printing pressure for each typeface must be unique to each character. Information regarding these printing pressures example d time 5i! Arranging the numbers on the memory device by the number of characters in the daisy wheel would be unsatisfactory from the point of view of providing an inexpensive printing device, that is, it would reduce the efficiency of the memory offset. Since there are cases where all the typefaces have the same pressing pressure, we prepared a nine-hour table by arranging the time numbers that correspond to the printing pressure so that they did not overlap, and each character was given the time ', the constant of the inclination in the table. Prepare an am tape #tube indicating what to feed. As a result, the time tape #
It is possible that 96 characters x 8 bits = 768 bits are required, but 8 types of 111 x 8 bits = 64 bits are sufficient.A new common sense is needed? -P#Hiro96
character x 4 pts) = 384 to 7 pts, but i*m
A total of 448 bits is sufficient for a method that uses a table, and a total of 768 bits is required for a method that does not use an identification table.

However, as the typeface used in Daisy Wheel became more diverse,
The time between the letter ``g'' and #a is a constant device, and the letter ``i'' is used as a constant device, and the letter ``i'' is printed at 9 times. Todoroki #1''1@ is unable to perform the proper W-shape because the pile of letters has increased dramatically.

The present invention overcomes the above drawbacks, is inexpensive,
The present invention provides a method that can solve the above problems.

This shows the m2EFi conventional technology, where IDTBL#i is a time table, PMI, Td
Prodala! Pull single tji! ff multivibrator, HD
is a hammer driver, and HMR is a printing handle! It is.

To explain the operation, when the daisy wheel finishes selecting characters to print a desired character, the number of the desired character is applied to the identification table. At this time.

9m clearance information consisting of F14 bits is output from the iron clearance table and applied to the input of the time table TMTBL. When receiving human power, the required time constant corresponds to any of the time constants of the table MTBL Hiro amsi and the required time constant is 1.
- Exit to Daramapur Monostable Multivibrator (PML〒). For example, character 1 has IIi foot count 1b0'. Then, the monoan jFv multivibrator (TMLT)
sets its own output to 6-I-C, and the hammer driver (HD) outputs 7J. In synchronization with this, the hammer driver () ID) energizes the printing hand v (HMR) K, so printing... The paper jumps in the direction of the arrow in the figure for a certain period of time, giving an impact to the type on the daisy wheel and finishing printing. It is a figure showing alms nine-ga. In the diagram: MTBL, PML, HD, li
MR is the same device as the kite in Figure 2, and ID'f'B
Is the identification daple different in configuration from the device in Figure 2? Muhiro full adder, AND is 8 gates and darts, C) isT
The configuration of the O m separate table, which is the Fi foot count storage, is as shown in JI4 details, and the first
In the identification table No. 11, although the time table does not contain eight types of data, for convenience, it is possible to output 4 bits. In other words, this rounding of 11111
The leftmost pit society of the m-separate table is an unused circle. Real #4 is designed to use this unused leftmost bit as a bit for instructing an increase in the time constant for increasing the printing pressure. Easy Kj from Rin 4E
In order to solve the problem, 0' is stored as the leftmost bit for the character M', and 1' is stored as the leftmost bit for the character M'. Now enemy tape # (IDTB
If a character number is applied to print a character as an input to L), ll-specific information '1110' is output as an output.At this time, the leftmost bit is '1', so it is an 8-gate ant game. The gate of Tom Nll is -(, On the other hand, since the output of the constant store is applied to the input of the 8 dart and gate, the increment stored in the foot storage I! This will add to human power.

Since 25 is stored as the increment in the constant storage, the output of the full adder is 150+25=175#atl car! In the case of 1rJI2[) and 1Wl, the Norodafmapuru monostable multi-devibrator becomes active with a relation of 3.5 and 14e, and is printed for JW purpose...) IMR is 5.5
whzac will jump out in the direction of the arrow ◇On the other hand, if you print the character 'mu°, the identification table IDTB will appear like a warehouse.
If the leftmost bit from L is '0', it is the same as the example in Figure 1.
During f15M&Iac, printing Hano HMR pops out.

As I said *@ above, it's true! By using At-j, it is possible to inexpensively produce mt that is sufficient to cope with the diversification of typefaces.According to this actual wAK, it is possible to cope with the diversification of typefaces by using y* equipment, which has a relatively small capacity. In addition, if the present invention is applied to a miter boot printing device, there is no need to add a full adder, 8 gates, etc. to the printer, and it can be done with a simple program modification. Sorry 0

[Brief explanation of the drawing]

l11IiI is a diagram showing the type wheel of the printing device, the second
The figure below shows a conventional example, and the third ail shows an embodiment of the present invention. Figures 1 and 4 are diagrams showing the structure of the identification cheagle according to the present invention. IDTBL...Table for each 5ell TMTBL...Fist/time constant table PMLT-
・・Tatami/Pudara Mable Monostable Multivibrator 1 (
D Seems Hammad Tsuiba 0NST e Yuki・
-Fist constant storer Fm...Full adder Applicant Canon Co., Ltd.

Claims (1)

[Claims] Stores multiple print pressure information set in advance.9I1
1 storage iron source and a selected friend at the same time as outputting rounded 1lj41 information coupled to the first storage iron source and selecting the only printing pressure information of the first storage device corresponding to a desired type; 9. A printing pressure control device comprising: a storage device configured to output a signal modifying printing pressure information;