DE1221043B - Device for determining the end of printing on a high-speed printer - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

G06k

German class: 43 a-41/03

Number: 1221043 ) ^. _Li

File number: O 8753IX c / 43 a

Filing date: May 15, 1962

Opening day: 14th Wed 1966

5.?.

The invention relates to an apparatus for defining the end of printing on one of a Storage device fed high-speed printer, its types to one or more type sequences moved together in the pressure area relative to the pressure release elements and the writing pad and that in any assignment position between types and pressure release devices can start with a printout of the memory contents.

This relative movement can be caused by reciprocating or endless type carriers, but also by Type drums are caused.

Basically, in a line printer, the completed printout of a line must be sent to a control unit be reported which the paper circuit, the 'storage of new information or other triggers necessary functions. The printing of a new line can only begin if on the one hand these functional sequences are completed and on the other hand the type carrier in a new print start position has arrived.

The impulses "storage ended", "paper switching ended" or the like can be relatively easily deploy. It is more difficult to combine the impulses “start of printing” and “end of printing” triggered with the movement of the type carrier.

In known line printers, a printing cycle is given by the path of the type carrier that is required is to run all different types past each pressure release element once. Just within this "type path" exists between storage cells, pressure release organs and types or type sequences of the type carrier that assignment state in which a proper imprint is possible. It is not possible to print outside the »type path«. Beginning and end of one The printing cycle is given by the beginning and end of the type path and can be specified by the type carrier be determined by yourself.

Thus, in a known printing unit, end contacts are provided which are a reciprocating type carrier operated in its respective end positions.

In another printing unit there are several, each one printing cycle on an endless type carrier assigned type sequences (groups) located one on top of the other are provided, between which type-free Areas lie. The start and end of printing can be synchronized with the type carrier Define moving contacts that are actuated at the beginning and at the end of the type path.

Device for defining the end of printing
a high-speed printer

Applicant:

Olympia Werke A. G., Wilhelmshaven

Named as inventor:

Dipl.-Ing. Theo Hense, Litzelstetten near Konstanz

Such printing units have disadvantages. The type carrier reports the beginning and end of the "Typweges" in a simple way, but there is often a significant loss of time.

If, for example, the message "Type path start" appears, triggered by the type carrier, the messages "Storage finished" or "Line feed finished" do not have to appear before the printing unit run through a full, unused »type path« until the next message "Type path start", i.e. if all three messages are present at the same time, the impulse "start of printing" is triggered. Even with printing units with endless type carriers, it can happen that the Messages »Storage finished« or »Paper circuit finished« are only available when the type carrier has just overflowed its initial print position and the corresponding contact. Although in Printer if all the prerequisites for a new print cycle have been created at the correct time, this can but do not start, because the ready messages required to trigger the »start of printing« impulse the paper circuit and the memory are not available in time.

To avoid dead times, which in their summation in the long run greatly reduce the printing speed, to avoid, a known drum printing unit is controlled so that in any assignment position between types and pressure release devices, a printout of the memory contents can be started. To express a complete Line, the type drum needs a full turn. Right at the beginning of the following turn then takes place the storage of new data as well as the switching of the paper to the next one Pressure cell instead. Immediately afterwards the printing of the next line begins, which in turn starts again one full rotation of the type drum, calculated from the start of printing, is required. A special Circuit ensures that the type drum

609 589/126

3 4

makes one complete revolution at a time, with a larger or smaller number

that a print cycle has started. of different types, the duration of a transit

A printing unit has also been proposed, running all different types at all printing on its endless, movable in line direction place a print line in an advantageous manner according to type carrier the 5 needs summarized in type sequences by shifting the signal reader relative types without intervening type-free spaces ^{to the} marking device arranged any desired length. It works with a matrix setting.

arranged storage elements together, which have As a recording medium for the print end pulse

diagonally routed call lines and a syn- can each be made of magnetizable material

chronologically with the type carrier moved allocator of ¹⁰ existing print types or one synchronous with the

continuously appearing call pulses on type movable magnetic tape are used,

will call. The call contacts of the allocator If the new device is at any

are attached without interruptions by the command center within the printer housing

contacts or spaces close together. is to be, Jcann. as a recording medium with pre.

This printing unit can also be in any part with the drive device of the type assignment position between the type carrier and the carrier-coupled rotating magnetic disk, pressure release devices with the imprint of a line are used,

kick off. To generate the pulse »Pressure ^IQ conjunction with magnetic recording start" are only the messages "storage carriers are used for marking, reading and Löbeendet" and "paper circuit stops" require ² ° research the print start pulses to look famous sary. electromagnetic pick-ups used. they are

The end of printing is marked by a counter, which is easier to manufacture than electronic counters and whose number of counting points is the same as the number of different counters. The counter becomes a sufficient adjustment possibility with each change,
pulse »print start« switched on, which appears, 25 In special cases it can be advantageous if both the storage process and if the recording medium is a rotating electrical line connection from the previous printout of static memory and as write, read or write, and is used by the impulses that the erase heads capacitor plate. Call up matrix memory, switched to another. If the target has a purely mechanical device for the fixed counter has reached its end position, all 30 laying of the end of printing have to be used, all type release recording media can once happened synchronously with the type carrier organs as different types. The end pulse of the counter moved rotating plate with axially displaceable pins on the circumference via a control device in a line switching direction and the storage of new information. In this case, the marking device is a printing unit memory. 35 times mounted double-armed lever provided, the

There was a need to use the counter to counter the force of a return spring Generation of the print end pulse by other electronic devices that can be excited each print start pulse or mechanical devices for direct magnet is pivotable. As a signal reader, or to replace indirect type displacement measurement, which is in the range of motion of the set pins are constructed more simply than a counter and the 40 spring contacts can be provided by each and every one of them allow the printing mechanism to be closed quickly to another pen set. Behind the spring type follow with a changing number of differential contacts, an overrun spring can be provided which adaptable types. move the set pen to its rest position

The object on which the invention is based resets when it goes under the overrun spring solved in a simple manner in that a in 45 passes through.

In a further embodiment of the invention

A marking carrier with one assigned to it is one with a slot as the recording carrier

Marking device provided by one of which the provided washer, which is slightly in axial

The end of the storage of the information to be printed is slidable on the drive shaft for the direction

Mations characterizing pulse or from a 50 sliding contact of the allocator is arranged. the

depending on this and one at the end - slotted disc acts with a brake clutch

movement of the paper feed generated signal, which are used both for signal marking and

Occurring pulse can be excited, and one at the end of a serves to delete the signal. The print start

Each pass of all different types of signal energizes the clutch that drives the slotted disc

rigidly connects all print points of a print line on the marking 55 with the drive shaft of the allocator,

The signal "end of printing" is supplied by a photocell which

more speaking and at the same time the final print impulse is exposed when the slit on the pane

gender signal reader and a device to pass between it and a lamp. Here-

Deletion of the marking are provided. through is also the clutch of the

A particular advantage of the new device is that the brake clutch is off and the brake is on, it that the end of printing emitting pulse after so that the slotted disc after de-energizing the

Passing the signal reader is deleted. Everyone the clutch until the next impulse »start of pressure« The printing triggering impulse is released at the beginning of each loose on the drive shaft for the sliding contact of the Passage of all different types slides on all assigners and thereby in their angular position Print spots in a print line remain on the recording 6g,

enrolled. 'The invention is illustrated by the following

Explained when exchanging the type carrier and the memory writing of exemplary embodiments. It

matrix for adapting the pressure to type sequences shows ^:

5 6

Fig. 1 em block diagram of a printing unit operated with movement of the type sequence. Of the

His new device for type path measurement, the path that each type 21 takes in front of the pressure release elements

F i g. 2 is a schematic representation of the pressure 11 to 19 must cover so that a complete

Work according to Fig. 1 is printed in connection with a first line, is calculated from: (Number of

Embodiment of the invention, 5 different types - 1) · width of a type.

3 shows a second embodiment of the invention. A paper web 1000 and an ink ribbon 101 are

dung, between the pressure release elements 11 to 19 and

Fig. 4 shows a third embodiment of the invention, the type 21 performed in a known manner, the pre

, Fig. 5a and 5b details of the execution thrust of the paper web 1000 takes place perpendicular to the loading

fojrm according to Fig. 4, io movement of types 21, the advance of the ribbon

6 shows a further embodiment of the invention 101 in the row direction.

manure. Each pressure release element 11 to 19 is over at Block diagram according to FIG. 1, the known, not shown here amplifier with a

Printing points of the printing unit 500 via lines associated column line 011a to 019 a of the ring

501 from the matrix memory 502 connected to print pulses * 5 core matrix 76, the lines of which are supplied in the present, which an information provider 504 only records the values "0" to "9" via the case. Information lines 503 and digit line 505 The column pulses are generated via a counter 49 is stored in the matrix memory 502. The positions are supplied, the stages 011 to 019 to the respective line 505 is connected to a position counter 506 connected to column lines OHa to 019a sen, from which the column lines 507 originate, are a °. The column pulses 85 pass over the loop which the column pulses in the memory 502 device 51 in the counter 49. The device for reach. Storage is not of interest here, however. Self-

The impulses for calling up the matrix memory can be understood by any suitable matrix

502 can work together in the printing unit 500, for example in memory with the printing unit.
Connection to a light barrier, which is interrupted at the intersections of line and column types of the type carrier and released by the ring cores 0011 to 9019 spaces arranged by the ten lines, are themselves generated by diagonally routed call lines O ₀ . The call impulses are called via the Lei to O ₉ .

tion 514 in a control device 509, from which via a drive connection 32, in which a device

it can be arranged via lines 510 in the matrix memory 502 30 drives 33, there is an allocator

can be entered. 34 with the drive of the endless type carrier 91

Via electrical, magnetic or mechanical connection. The allocator consists of one Connecting means, which in FIG. 1 generally have sliding contact 35, a disk 79 made of insulating material 512 are designated, there is an operative connection and the contacts 00, 10, 20 ... 90, which are on a between the printing unit 500 and a type path 35 circular path in the range of motion of the knife 513, which is caused by initial pressure pulses that are sliding contact 35. A contact ring 36 is Via a line 517 from the controller 509 pulls with the sliding contact 35 continuously conductive turned on. Tied closer to later.

The type odometer 513 generates each contact 00, 10, 20. Connected via a circuit point 000, 100, 200 ... 900, on line 519, and connecting lines to each one of the diagonal lines O ₀ to O of the Druckendimpuls information to the ring core matrix 76 is connected 520, and 522 ₉ passes. In the present referrer 504 and on the paper switching device the case, the contact 00 of the assign-521 corresponds. The information provider 504 is encouraged to enter 45 ners with the terminal 000, the contact 20 with the new information in the memory 502, terminal 200, etc., so that the sliding contact 35 during the paper circuit 521 in itself is moving in the direction of the arrow 38 triggers a line break in a known manner. on the other hand the connection points 000,100, 200 ... 900 with .1 If a signal "storage completed" is connected via the ring-shaped contact 36,
a line 508 and via a line 518 a 50 F i g. 2 shows a so-called assignment position, the signal "paper circuit completed" together with the types 1 to 9 currently in the correct control device 509 Line 517 is on. The sliding contact 35 of the assigner 34 is the type odometer 513 is delivered and one thereby on the contact 00 and connects the Konneuen passage of all different types on 55 clock ring 36 with the terminal 000 for the all pressure points of a print line initiates. Diagonal line O _{0 of} the toroidal core memory 76, all of them

F i g. 2 shows in schematic form a particular memory element 1011 to 9019 with one another

Embodiment of the invention in connection with other connects whose valence, even if in

with a printing unit whose endless type carrier no value is stored for them, the arrangement of the

is guided and moved by two wheels 22 and 23, 60 types 1 to 9 in front of the pressure release elements 11 to

which corresponds to the axes 24 and 25 in the direction of the arrow 19.

29 rotate. The type sequence becomes one step to the left

Distances 26 have been shifted between types 21, the sliding contact 35 of the viewer wanders, the light beam from a light source 27 falling on the contact 10, whereby it exposes the slide, a photocell 28 and thus the orthogonal line O ₁ switches on. These diagonal pulses 81 for calling up the memory matrix 76 to line also connect precisely those memory cells to be generated. It is also possible to use any other combination that uses the current arrangement of the pulse generators, which corresponds to the type 21 in front of the pressure release devices.

7 8

2 shows that the allocator 34 is connected to the connection point 44 via the amplifier 125.

any relative position between types and guided, from where he has already described

Pressure release devices always trigger the correct assignment processes.

between types 21 and the diagonal lines O ₀ With 126 the extinguishing head of the device is

until O ₉ does. 5 draws.

According to FIG. 3, in which a magnetic memory

the time pulse 135 synchronized with the type movement is used, can be

81 of the photocell 28 via a line 31, a speaking modification of the invention

Switch 41, an amplifier 42 and a line 37 device also contain an electrostatic storage disk

created. io be provided. As read, write and erase heads

The on-switch 41 is via a line 84 with capacitor plates are then used,

a changeover switch, for example a flip-flop 45 F i g. 4 shows a mechanical device for the

in conjunction, the generation of an end-of-print signal from pulses 82 and 83. On the already in

is controlled. A pulse 83 always appears then Fig. 3 shown wave 32δ is a circular

on the line 46, and on the switch-on side 45 a 15 plate 144 attached, near the periphery of pins 145

of the changeover switch 45 when the column input counters are arranged to be easily displaceable in the axial direction.

49 emits an end impulse »entry finished«. A double-armed winch with a single bearing at 142

Toggle switch 45 turns on switch 41, and lever 141 turns on a pin when it

on the impulses 81 the passage to the allocator against the force of a spring 143 from an electric

34 permitted. 20 magnets 140 is pivoted. The excitation impulse

From the line 46, a line 123 leads over for the magnet 140, the pressure start pulse is an amplifier 122 to an 83 known per se, which is fed via the line 123,
electromagnetic writing head 121, the impulses Each set pin 145 meets on its movement the types of the type carrier 91, or if this trajectory with a spring 146, which consists of a non-magnetizable material, closes a contact that closes one pole of a tension in magnetic tape inscribes which, in FIG. 2, places source 148 at connection point 44. Which is not shown like this. The impulse for the start of printing, the resulting impulse switches over the changeover switch 45, which switches the switch 45 and the switch 41 on and the switch 41, as described, switches the memory, so it is also used to call and release over the line 47 in the printing start of printing on the types or on a 30 work further functions, for example a line synchronous with the types moving magnetic tape circuit, off.
to mark. F i g. 5 a shows in detail the device for

Adjustable compared to the one shown in FIG. 2 through the set pin 145 housing 127, a read head 124 with a pulling disk 144 and a read amplifier 125 belonging to the contact spring arrangement are provided. As soon as the 35 146, which establishes the connection of one pole of the current magnetized point on one of the types of the type source 148 with the point 44,
sequence 91 or on the magnetic tape under the read. 4. The return spring "end of printing" is clearly visible as a pulse 82 via point 147, against which the respectively set 44 runs on the switch-off side 45 b of the switch 45 40 pin 145 in order to return to its rest position, the switch 45 in his "off" position to be put.

resets, the switch 41 turns off and so the F i g. 6 represents a further mechanical version

Prevents impulses 81 from passing through the amplifier 42 approximately the form of the invention that is transmitted through the lines

to get to allocator 34. 47 and 46 in exchange with the device according to

The pulses 45 F i g. 2 can be connected to the printer

Start of print and end of print for other switching operations,

utilize the gears in the printing unit. According to FIG. 6 one

Behind the read head 124, a Erschvorrich- plate 113 is provided with a slot 114, the loose

tion 126 arranged, which slides on a type or on the shaft 32. Fixed to the shaft 32 are

erases the pulse written on the magnetic tape. .50 a slotted disk 119 and the sliding contact 35 of the

3 schematically shows a second execution assignment 34 connected.

form of the invention, the illustration of which can easily be seen in The disc 113 acts with a brake 118 and

the F i g. 1 can be incorporated. a clutch 112 together. The clutch 112

The recording medium for the initial print is via slip rings 109 and 111, grinding brushes

impulse is a magnetizable disc 135, at 55 107 and 108 and an amplifier 101 current from

for example made of nickel, provided which is fed to a switch 45. As soon as this

Shaft 32 b sits, and has excited via the gear 33 for the treatment 112, it attracts the disc 113 and

Allocator 34 and the. Type carrier 91, from del provides a rigid connection between it and the

Main drive shaft 32 is driven. The over-wave 32 ago, whereby the pressure start pulse

Setting of the gear 33 must be chosen so that 60 is fixed.

the magnetic disk 135 less than one revolution. The slot 114 of the disk 113 runs between executes, while the type carrier 91 imprints a light source 116 and a photocell 115 one line covers the necessary distance. . and thus generates the print end pulse, which is called

Via the line 123 and an amplifier 122 pulse 82 via an amplifier 117 to the Abwird Each print start pulse reaches the write head 121 65 branch terminal 44. Pulse 82 represents, as already fed. The disk 135 rotates in the direction of the arrow. mentioned above, via the switch 45 and the The IM switch 41 written by the write head 121, the pulse line 31 for the pulses pulse is read in the reading device 124 and 81 from.

Via a line 104, an amplifier 102 and a line 105 , a pulse is sent from the switch-off side 45 b of the switch 45 to the magnetic brake 118. As soon as the switch 45 switches over, the brake is applied, immediately separating the disc 113 from the already de-energized clutch and holds her in this position.

The devices described above represent only exemplary embodiments of the invention Device represents. Numerous other embodiments are conceivable, all after Basic ideas of the invention are constructed.

Claims (15)

Patent claims: 1. Device for setting the end of printing on a high-speed printing unit fed from a memory device, the types of which are combined into one or more type sequences in the printing area relative to the pressure release elements ^ao and the writing pad and that in any assignment position between types and pressure release elements with a printout of the memory content can begin, characterized in that a marker carrier (91, 135, 144, 113) which can be moved in a defined time relationship to the type sequences with a marking device (121, 141, 142, 143, 140; 112, 118) assigned to it, the can be excited by a pulse that marks the end of the storage of the information to be printed or by a pulse that occurs as a function of this and a signal generated at the end of the paper feed, and one at the end of each pass of all different types at all print locations of a print line the mark of the pulse on the marking carrier (91, 135, 144, 113) responsive signal readers (124, 146, 115, 116) generating the final print pulse and a device (126, 147, 118) for erasing the marking are provided. 2. Apparatus according to claim 1, characterized in that the duration of a run of all different types at all print points of a print line by shifting the signal reader (124, 146) relative to the marking device (112, 141, 142, 143, 140) is adjustable. 3. Device according to claims 1 and 2, characterized in that one of the printing types (910) made of magnetizable material is provided as the marking carrier. 4. Device according to claims 1 and 2, characterized in that the marker carrier is a magnetic tape movable in synchronism with the types. 5. Device according to claims 1 and 2, characterized in that the marking carrier is a rotating magnetizable disk (135) coupled to the drive device (32, 33) of the type carrier. 6. Device according to claims 1 to 5 with magnetizable marking or recording media, characterized in that electromagnetic transfer heads (121, 124, 126) are provided for marking, reading and deleting the initial print pulse. 7. The device according to claim 1, characterized in that a marking carrier electrostatic storage and as write, read or. Erase heads used capacitor plates will. 8. The device according to claim 1, characterized in that a marker carrier driven synchronously to the type carrier rotating pin plate (144) is provided which carries axially displaceable pins (145) on its circumference. 9. Apparatus according to claims 1 and 8, characterized in that a simply mounted (142), double-armed setting lever (141) is provided as the marking device, which can be pivoted against the force of a return spring (143) by an electromagnet (140) which can be excited by each initial pressure pulse is. Device according to Claims 8 and 9, characterized in that the signal reader is a spring contact (146) which is closed by each set pin (145). 11. Device according to claims 1, 8, 9 and 10, characterized in that for To clear the signal, an overrun spring (147) is provided, which drives the respective set pin (145) returns to its rest position when it passes under the spring (147). 12. The device according to claim 1, characterized in that a disc (113) provided with a slot (114) is provided as the marker carrier, which disc (113) is easily displaceable in the axial direction on the drive shaft (32) for the sliding contact (35) of the allocator (79 ) is arranged. 13. The device according to claims 1 and 12, characterized in that a brake clutch (118, 112) is provided as a marking device, the coupling part (112) is excited by the initial pressure pulse, and the disc (113) fixed to the drive shaft (32) for the Sliding contact (35) of the allocator (79) connects. 14. Apparatus according to claims 12 and 13, characterized in that a photocell (115) is provided as a signal reader, which generates the final print pulse when the slot (114) passes by in conjunction with a lamp (116) . 15. The device according to claims 1, 12, 13 and 14, characterized in that the photocell (115) is connected via an amplifier (117) to a changeover switch (45) which starts the coupling (112) for the slotted disc (113) - and the brake (118) switches on. Considered publications:
German Auslegeschrift No. 1 076 420;
British Patent No. 890,218;
U.S. Patent No. 2,776,618. For this purpose 2 sheets of drawings 609 589/126 7.66 © Bundesdruckerei Berlin