Printer controller with addressable buffer memory

Details Printer controller with addressable buffer memory Printer controller with addressable buffer memory

1993-06-28

1995-10-03

Wiecking, David A.

Typewriting machines

Carriage or carriage-moving or movement-regulating mechanism

Carriage-feed mechanism

400279, B41J 1914

Patent

active

054546516

ABSTRACT:
A printer controller is for controlling a serial dot printer. The printer prints a dot picture on a paper by reciprocally scanning a recording head in horizontal forward and backward directions. The printer controller includes a buffer memory for storing print data in a dot pattern, a print starting address register for transferring the print data from the buffer memory to the recording head, a print end address register, an address counter, a print timing register for drive controlling the recording head, and a print timing pulse generator. The printer controller corrects vertical misregistration of print in the forward and backward printing by adjusting a set value of the print starting address of the print starting address register or a set value of the print timing register.

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