DE1243431B - Device for optional print design - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

int. Cl .:

G06k

German KL: 42 m6 -15/08

Number: 1243 431

File number: J 25583IX c / 42 m6

Filing date: April 3, 1964

Open date: June 29, 1967

The invention relates to a device for optional Print image design in a printing unit with single-line type sequences moved in line direction, which is fed by a circulating, the characters of a print line receiving memory and in which the selection of the types to be printed by comparing the text character by character the print line with an image of the types located in front of the print points under simultaneous The corresponding print hammers are controlled.

In such printing units, it is generally assumed that the text entered in the memory of the printing unit is ready for printing, ie that the xs character to be printed at the -th position is also located at position η of the printing unit memory. In data processing systems in connection with which such printing units are essentially used, however, the data to be output in the course of a program, for example as calculation results without punctuation or otherwise in an order that does not always correspond to the desired order in the print image to be created, so that a rearrangement and possibly an addition of the text entered in the memory of the printer is necessary.

A device is also known by means of which information scanned from punch cards can be selected in two can be printed out in different arrangements. To this end, those are sensed Information with the help of differently addressed clock pulses via selectable distributors to different Places of a memory passed, the storage locations of which are permanently assigned to the printing elements. However, this facility is not very flexible and very expensive.

The rearrangement of the characters to be output can also be done in a known manner in that the Text made available for the print line within the data processing system with the aid of a program rearranged and then entered into the printer memory. Such rearrangement requires however, a significant number of operations may occur, particularly with single address machines and thus a disruptive computing time that is required before each such printing operation must be expended.

In a printing unit of the type described at the outset, this task is performed while avoiding the aforementioned Disadvantages solved according to the invention in that two additional Storage tracks are provided, of which the first, means for optional print design

Applicant:

IBM Germany International Office Machines

Society m. B. H.,

Sindelfingen (Wüitt.), Tübinger Allee 49

Named as inventor:

Dipl.-Phys. Friedrich W. Albrecht, Sindelfingen

the auxiliary address track, the addresses of those at the storage locations corresponding to the characters of the text track Contains places in which the respective text characters appear in the print image, and the second, the Auxiliary image track, the images of the types of the type carrier corresponding to the auxiliary addresses in its Basic position and the images of the on the type carrier contains adjacent types that take their place as a result of the shift, and that controlling the triggering of the print hammers selected by the auxiliary addresses In addition to the characters of the text track, the characters of the auxiliary image track are fed to the comparator.

In the case of a printing unit in which the images of adjacent types on the type carrier are in each case are generated by adding a binary 1, the device according to the invention is more advantageous Manner designed so that the type images contained in the auxiliary image track with each shift of the type carrier by one type width in each case from the previous type image through application a 1-adder or a counter can be obtained.

The auxiliary address and the changed type image are advantageously created once before starting to press by rearranging from the already saved address and the type image or by input using an external recording medium.

Another advantage of the device according to the invention is that optionally several of each other different print images can be generated from the same entered text of a print line can be provided by adding several pairs of auxiliary addresses with correspondingly changed type images are.

The invention is illustrated by means of an exemplary embodiment which is shown schematically in the figure for explanation is shown, described.

709 608/203

3 4

The printing unit of the exemplary embodiment has been applied. In this track, at those as type carriers, there are places which can be moved in line direction and which are occupied by characters in the PA track , type bar T, on which several sets of the addresses of those places in which the types in question are used, each in the same order , subordinate characters are to appear in the print image. In the present case, the type carrier T moves in the first place a 2, since the printing process of a line gradually passes the E in the first place of the PA track in the printing of the individual print points, so that each image D in the second Place should appear. EntDruckstelle one after the other each of the different speaking contains the second digit of the A '-track types of a sentence exactly once opposite. a 6, the fourth digit a 5 and the fifth digit

The printing unit also contains a rotating io a 4. Positions 3 and 6 of the A 'track should be empty

the permanent memory, for example a magnetic one.

drum. On the memory labeled B ₀ in the figure, there is also a second auxiliary track; the tracks of this memory are accommodated in the basic position for the auxiliary image track B _0. In this track according to a certain code applied characters are the coded characters of those types that are stored for the types on the type bar in 15 when the type bar is in the basic position in the print locations indicated by the order of the auxiliary address values on the type carrier. Find each time the type bar is shifted. In the present case, the characters in the ß _o -track position in the ß o -track position are also displaced by one position so that the B corresponds to address 2. In each case, there is an electrical image that speaks to the individual 20 in the second place of the type opposite to the pressure points. Address 6 belonging to F, in the fourth place the E (the characters to be printed are in the figure with and in the fifth place the D. The coding of the corresponding, arbitrary characters are available, since even in the character or their arrangement on the type bar 25, if the comparison result is positive, it is normally chosen so that no hammer is selected for each character at the address,
a bilateral point of the signs of S are now identified by a unique and possibly simple to print hammer triggering of function, for example, by adding ₀ -Track the signs of the binary 1 from the respective preceding symbol ER track along with the sign of PA-track the can be procreated. 30 comparator 11 'supplied, and the selection of the

On the track labeled PA of the print hammer memory takes place through the auxiliary address track A ',

the characters to be printed are located in a print whose characters are via decoder 12 'the AND-

row. It is normally assumed that switches 13 'are supplied. So it will now-

these characters are ready for printing, d. That means that the more compared in position 1 E with B, in position 2

Characters to be printed at the η-th position also on 35 G with F, in position 3 empty with empty, but without

Position η of the memory. This requirement needs an address, in position 4 H with E and in position 5

in the present case, however, not to be fulfilled, since F and D. Da no match occurred

the invention has resulted in a rearrangement of the characters, takes place in this first (in the figure with I

becomes possible. It is only assumed that the drawn pass) also no print hammer

the arbitrary distribution of the characters on the 40 stop takes place.

PA track is known. The type bar then follows one step

During the hold time after each step the left off; so that in the position T ₁ the B of the first

Type bar, the memory makes one revolution. Pressure point opposite. Accordingly, must

Normally, the read heads also correct the electrical image of the type bar.

the characters taken from the PA and B ₀ tracks are yawed. In the case of the auxiliary picture track B ' happens

Comparator 11 is supplied. In the event of a positive failure of this, the fact that the in the first auxiliary image track B ₀ '

In comparison, the print hammer is triggered using the upright characters on the type carrier

the AND switch 13. The selection of the characters to the right of them are replaced

term print hammer happens with the help of the on the be. This is how the auxiliary image track is created

Memory existing address track Λ, whose characters 50 B ₁ ', in which the B through C in the first place

Via the decoder 12 the AND switches 13 to the second place the F through G, in the fourth

be directed. Replace the E with F and in the fifth position that

As mentioned before, D is usually replaced by E.

sets that the characters entered in the P - ^ track will now be the characters of the B / track and

a print line is already ready for printing. Is 55 of the PA track controlled by the

if this is not the case, the print hammers determined in the following A 'track are compared. There-

proceeded: if there is a match in the second digit

For example, let the letter G be entered in the Pvi track, with the print hammer

an E in digit 1, a G in digit 2, which is excited in the sixth digit. In the sixth place

Position 3 is empty, an H in position 4, an F in 60 but type G. It will be

Place 5 and the sixth place is again empty. in the second pass (marked II), as in

The print image D, on the other hand, should have the following print image appearance, a G in the sixth position

have: The first position is empty, printed in the second position.

stand the E, the third position is empty, in the fourth the type bar now leads a further step

Place the F, in the fifth place the H and 65 to the left and get into position T ₂ , in which

in the sixth position the G. the C is in the first printing position. To the-

In order to carry out the desired rearrangement accordingly, the auxiliary image track B 'is corrected, in-

can, an auxiliary address track v4 'on the memory is the one in the B ₂ ' track in the first place the C

by D, in the second position G is replaced by H, in the fourth position F is replaced by G and in the fifth position E is replaced by F. In the comparison that now follows between the B ₂ ' and the PA track , there is a correspondence of the letters F in the fifth position, with the print hammer in the fourth position being activated. However, the F is currently in the fourth position, so that in the third pass (labeled III) at the fourth position, as required in the print image, an F is printed.

A further shift of the type bar into position T ₃ causes the D to enter printing point 1. The corrected accordingly, with B ₃ 'designated auxiliary image track contains therefore in the first place an E, at the second location, an I, in the fourth place a H and at the fifth place a G. In the process carried out in the following storage circulation compared with the PA -Track , a match of the letters E is discovered in the first position, with the print hammer 2 being activated. Since type E is currently in print position 2, an E is actually printed. Another correspondence is in the fourth digit with the letter H under control of the printing hammer located in the fifth digit. Since the type H is currently in the fifth position, an H is printed in the fifth position, as required in the print image. This means that all characters of the desired print image are printed, and the printing of the next line can be prepared by, for example, entering the text of the next print line into the PA track from a data processing system.

In many applications it will be a constant conversion of the text to be printed in the individual print lines. In these cases, the two auxiliary tracks, auxiliary address track A ' and auxiliary _{image track J3 0} ', only need to be created once before printing begins. The input of the characters can be done by rearranging the address track ^ i and the image track B ₀ by means of a program that is similar to the one for rearranging the characters of the P ^ l track within the data processing machine, but which in this case only has to be run through once needs to be. On the other hand, an input via an external data carrier, e.g. B. a punch card, possible directly in the two auxiliary tracks of the printer memory. This means that constant pressure information can also be entered. For example, invoice amounts delivered by the machine can be provided with the "DM" characterizing the amount of money and with punctuation marks.

If several different print images are to be generated one after the other from the characters of the PA track, all that is required is to arrange a corresponding number of pairs of auxiliary tracks on the memories, from which the desired one can then be called up by a command.

If the coding of the types located on the type bar is chosen so that each character can be generated from the preceding one by adding a binary 1, the generation of the corrected auxiliary image tracks B ₁ ' etc. can be relatively simple with the aid of a 1-adder or a Perform counter.

Claims (4)

Patent claims: 1. Device for optional print image design in a printing unit with single-line type sequences moved in line direction, which is fed by a circulating memory that accepts the characters of a print line and in which the selection of the types to be printed by comparing the text of the print line with an image character by character of the types located in front of the printing positions is carried out with simultaneous control of the corresponding printing hammers, characterized in that two additional memory tracks are provided on the rotating memory, of which the first (auxiliary address track A ') contains the addresses of those positions at the characters of the text track corresponding to the characters of the text track in which the respective text characters appear in the print image, and the second (auxiliary image track B ') the images of the types of the type carrier corresponding to the auxiliary addresses in its basic position and, after each shift of the type carrier by a type width, the images of the on d em type carrier contains adjacent types that take their place as a result of the displacement, and that the comparator (U ') controlling the triggering of the printing hammer selected by the auxiliary addresses is supplied with the characters of the auxiliary image track in addition to the characters of the text track. 2. Device according to claim 1 in a printing unit, in which the images of on the Type carrier neighboring types are generated by adding a binary 1, thereby characterized in that the type images contained in the auxiliary image track with each shift of the type carrier by one type width each from the previous type image can be obtained by using a 1-adder or a counter. 3. Device according to claims 1 and 2, characterized in that the creation of the Auxiliary address and the changed type image once before starting to press by rearranging from the already saved address and the type image or by entering via an external recording medium. 4. Device according to claims 1 to 3, characterized in that for optional generation several different print images from the same entered text of a print line several pairs of auxiliary addresses with appropriately modified type images are provided. Considered publications:
British Patent No. 858 410;
U.S. Patent No. 2,903,961. 1 sheet of drawings 709 608/203 6.67 © Bundesdruckerei Berlin