Electronic printer having a single tracing element for tracing out alphanumeric characters

A printer according to claim 4, wherein said storing means include a read only memory where the instructions for tracing each character are stored in form of a routine addressable by coded input signals, comprising a counter conditionable by said input signals for starting to count, and means for causing said addressing means to address the subsequent instructions of each routine by supplementing said input signals with the counting signals of said counter.

An electronic printer having a single tracing element for tracing alphanumeric characters, comprising spacing means for relatively moving said tracing element and the paper in a letter spacing relationship, storing means for storing addressable numerical instructions for each one of said characters, addressing means for addressing each time the instructions of a predetermined character, control means conditioned by said addressed instructions, driving means controlled by said control means for driving a pair of electromagnets each having a movable member, and kinematic means supporting said tracing element and connected to said movable members for converting the movements of the said two movable members into the movements of said tracing element along a pair of coordinates, said kinematic means comprising a group of hinged arms, the hinges of which are formed by flexible leaf springs.

An electronic typewriter, comprising a single tracing element for tracing alphanumeric characters, spacing means for relatively moving said tracing element and the paper in a letter spacing relationship, a read-only memory for storing addressable numerical instructions for each one of said characters, driving means adapted to be controlled for driving said tracing element as to move along a pair of coordinates, an entry keyboard, and an encoder for producing in response to the depression of each key of said keyboard a code addressing the said memory for extracting the instructions to cause said tracing element to trace a corresponding character, printing control means operable for conditioning said driving means according to a character to be printed, detecting means for detecting the position of said tracing element, D/A converting means for converting the numerical instructions so addressed into command signals, comparison means for comparing the signals given by said detecting means and by said converting means, and servo control means conditioned by said comparison means for controlling said driving means.

An electronic printer having a single tracing element for tracing alphanumeric characters, comprising spacing means for relatively moving said tracing element and the paper in a letter spacing relationship, driving means for shifting said tracing element along a pair of coordinates parallel to the printing plane independently of the said letter spacing, for tracing each character, storing means for storing a set of addressable instructions for each one of said characters, addressing means conditionable for sequentially addressing the instructions of a predetermined character, detecting means for detecting the instantaneous speed of the said tracing element, comparison means for comparing the signals of said detecting means and the signals corresponding to said instructions and servo control means conditioned by said comparison means for controlling said driving means.

An electronic printer having a single tracing element for tracing alphanumeric characters, comprising spacing means for relatively moving said tracing element and the paper in a letter spacing relationship, driving means for shifting said tracing element along a pair of coordinates parallel to the printing plane independently of the said letter spacing, for tracing each character, storing means for storing a set of addressable instructions for each one of said characters, addressing means conditionable for sequentially addressing the instructions of a predetermined character, detecting means for detecting the instantaneous acceleration of said tracing element, integrating means for the signals of said detecting means, comparison means for comparing the signals of said integrating means and the signals corresponding to said instructions and servo control means conditioned by said comparison means for controlling said driving means.