Serial printer with fixed interposer

Claim 2

An on-the-fly printer for serially printing along a print line, comprising a main frame, a type-carrying member in steady motion for bringing, in succession, to a print position, every character of a character set, with the direction of movement being substantially parallel to the direction of the print line, a print carriage movable along the print line for occupying in succession all possible positions pRinting along the print line, a printing member mounted on said print carriage comprising at least two printing hammers having printing heads at least partially superimposed, an interposer member mounted on said frame comprising a rigid crosspiece supporting a plurality of interposer elements, one interposer element being provided for each print position, interposed said interposer elements being between said type-carrier member and said printing hammers, the printing operations being effected by cooperation of said typecarrying member with one of the printing hammers through one of said interposer elements.

Claim 3

An on-the-fly printer for serially printing along a print line, comprising a main frame, a print carriage movable along the print line for occupying in succession all possible printing positions along the print line, a type-carrying member mounted on said carriage in steady motion for bringing in succession, to a print position, every character of a character set, with the direction of movement being substantially coincident with the direction of the print line, a printing member mounted on said print carriage comprising at least two printing hammers having printing heads at least partially superimposed, an interposer member mounted on said frame comprising a rigid crosspiece supporting a plurality of interposer elements, one interposer elements being for each print position, said interposer elements being interposed between said type-carrier member and said printing hammers, the printing operations being effected by cooperation of said type-carrying member with one of the printing hammers through one of said interposer elements.

Claim 4

An on-the-fly printer for serially printing along a print line, comprising a main frame, a print carriage movable along the print line for occupying in succession all possible printing positions along the print line, a type-carrying member mounted on said carriage in steady motion for bringing in succession, to a print position, every character of a character set, with the direction of movement being substantially coincident with the direction of the print line, a printing member mounted on said print carriage comprising at least two printing hammers having printing heads at least partially superimposed, an interposer member mounted on said frame comprising a rigid crosspiece supporting a plurality of interposer elements, one interposer elements being for each print position, said interposer elements being interposed between said type-carrier member and said printing hammers, the printing operations being effected by cooperation of said type-carrying member with one of the printing hammers through one of said interposer elements.

Claim 5

A serial on-the-fly printer, comprising a main frame, a first carriage movable along the print line, a type-carrying member in steady motion for bringing in succession to a print position every character of a character set, with the direction of movement being substantially coincident with the direction of the print line, said type-carrying member being mounted on said first carriage, a second carriage movable along the print line for occupying in succession all possible printing positions along the print line, in coincidence with the position occupied at any time by said first carriage, a printing member mounted on said second carriage comprising at least two printing hammers having printing heads at least partially superimposed, an interposer member mounted on said frame comprising a rigid crosspiece supporting a plurality of interposer elements, one interposer element being provided for each print position, said interposer elements being interposed between said type-carrier member and said printing hammers, the printing operations being effected by cooperation of said type-carrying member with one of the printing hammers through one of said interposer elements.

Claim 6

A serial on-the-fly printer, comprising a main frame, a first carriage movable along the print line, a type-carrying member in steady motion for bringing in succession to a print position every character of a character set, with the direction of movement being substantially coincident with the direction of the print line, said type-carrying member being mounted on said first carriage, a second carriage movable along the print line for occupying in succession all possible printing positions along the print line, in coincidence with the position occupied at any time by said first carriage, a printing member mounted on said second carriage comprising at least two printing hammers having printing heads at least partially superimposed, an interposer member mounted on said frame comprising a rigid crosspiece supporting a plurality of interposer elements, one interposer element being provided for each print position, said interposer elements being interposed between said type-carrier member and said printing hammers, the printing operations being effected by cooperation of said type-carrying member with one of the printing hammers through one of said interposer elements.

Claim 7

The on-the-fly printer of claim 1 whereby the printing heads of said printing hammers are entirely superimposed at, at least, a first and a second level and have a width substantially equal to two print positions, said interposer elements being alternatively provided with reliefs in correspondence of said first and said second level, for cooperating with a single one of said two hammers.

Claim 8

The on-the-fly printer of claim 2, whereby the printing heads of the said printing hammers are entirely superimposed at, at least, a first and a second level and have a width substantially equal to two print positions, said interposer elements being alternatively provided with reliefs in correspondence of said first and said second level, for cooperating with a single one of said two hammers.

Claim 9

The on-the-fly printer of claim 3, whereby the printing heads of the said printing hammers are entirely superimposed at, at least, a first and a second level and have a width substantially equal proximate to two print positions, said interposer elements being alternatively provided with reliefs in correspondence of said first and said second level, for cooperating with a single one of said Two hammers.

Claim 10

The on-the-fly printer of claim 1, whereby the printing heads of said printing hammers are partially superimposed on two different levels, and have each a width substantially equal to half the length of a print position.

Claim 11

The on-the-fly printer of claim 2 whereby the printing heads of said printing hammers are partially superimposed on two different levels, and have each a width substantially equal to half the length of a print position.

Claim 12

The on-the-fly printer of claim 3, whereby the printing heads of said printing hammers are partially superimposed on two different levels, and have each a width substantially equal to half the length of a print position.

Claim 13

A serial printer comprising: type-carrying means linearly movable adjacent a plurality of print positions, carriage means linearly movable in a parallel direction with respect to said type-carrying means, printing means disposed on said carriage means and comprising at least two printing hammers partially superimposed, and interposer means comprising a plurality of interposer elements equal to the number of printing positions disposed between said type-carrying means and said printing heads and fixed with respect to linear movement parallel to said type-carrying means and said carriage means whereby printing is effected on a printing medium by movement of one of said printing hammer in a direction perpendicular to said direction of linear movement which printing head movement is translated to said type-carrying means through one of said interposer elements.

Claim 14

A serial printer comprising: type-carrying means linearly movable adjacent a plurality of print positions, carriage means linearly movable in a parallel direction with respect to said type-carrying means, printing means disposed on said carriage means and comprising at least two printing hammers partially superimposed, and interposer means comprising a plurality of interposer elements equal to the number of printing positions disposed between said type-carrying means and said printing heads and fixed with respect to linear movement parallel to said type-carrying means and said carriage means whereby printing is effected on a printing medium by movement of one of said printing hammer in a direction perpendicular to said direction of linear movement which printing head movement is translated to said type-carrying means through one of said interposer elements.

Claim 15

The serial printer of claim 10 wherein said printing heads are entirely superimposed at, at least a first and a second level and have a width substantially equal to two print positions, said interposer elements being alternatively provided with reliefs corresponding with said first and second levels whereby alternate interposer elements cooperate with a single one of said printing hammers to effect printing.