Abstract: An electric control device for printing apparatus in which electric signals, representing letters and the positions of words formed by the letters, are transmitted from a keyboard to storage means in which the signals are stored in their sequence of generation. The storage means includes two one-character, seven-bit dynamic shift registers, coupled in series, through which the signals are shifted. A typewriter printing mechanism is coupled to the storage means, and it prints the stored text word by word, each formed by the letters represented by the signals stored in the storage means. A control unit coupled to the printing means, keyboard and storage means controls the input of the signals to the storage means, and the read-out and printing of the signals by the printing means, so that the signals are transmitted into and out of the storage means and printed word by word in the sequence in which they were generated.

Abstract: An ink jet character recording apparatus comprises a first deflection electrode for deflecting the stream of ink droplets ejected from a nozzle in a direction perpendicular to the direction of relative movement between a recording paper and the nozzle, a second deflection electrode for deflecting the stream of ink droplets in a direction substantially perpendicular to the direction of deflection effected by the first electrode, and an ink collector for collecting the ink droplets.

Abstract: A printing device employs a printing drum on the peripheral wall of which a plurality of character types are arranged in the axial direction and in the circumferential direction. The axial movement and rotation of the drum are independently controlled by comparing the position of a new character type on the drum to be printed with that of the immediately preceding one of already printed character types thereon at each printing step in response to electric printing information. A hammer is disposed close to the outer periphery of the drum. The hammer advances step by step in printing in the axial direction of the drum independently of the drum to determine the printing position with respect to a record sheet and selectively strikes the opposed surface of the drum through the record sheet. The printing device can thus attain a mechanical driving system for the drum and hammer which has the simplest construction, the least probability of trouble, and a highest possible printing speed with ease.

Abstract: An ink pressurizing apparatus for an ink jet recorder comprising an ink storage having an ink inlet port through which to conduct ink from an ink tank to said storage and an ink outlet port through which to deliver ink to a nozzle for ejecting the ink in fine particles and partly formed of elastic material; a plunger mechanism for depressing the elastic material to apply pressure to the ink held in the ink storage; and a valve for preventing the back flow of ink from the ink inlet port to the ink tank.

Abstract: An information input device includes first and second counting means serially connected so as to be cyclically driven, a matrix circuit having row lines connected to an output from the first counting means and column lines, and a timing count value selecting circuit consisting of a plurality of AND circuits the respective one gate of which is connected to the respective column line of the matrix circuit and the respective opposite gate of which is connected to an output from the second counting means. The timing count value selecting circuit is adapted to select count values of the first and second counting means on a count timing basis by both an output of the column line selected at the intersection crossed by the row line which is selected by the output of the first counting means through the operation of the input key and an output from the second counting means.