Patent ID: 6498616
Filing Date: 2002-12-24
Classification: G06K

Abstract:
A print head of a printer comprising:a plurality of print elements; a driver formed of a volatile, relatively high-speed, storage section for storing correction data received from a source outside of the print head, and a plurality of drive elements for selectively supplying and adjusting driving power applied to respective corresponding ones of the print elements in accordance with print data representing an image to be printed and the correction data, wherein each of said print elements prints a dot when said driver supplies driving power thereto; a non-volatile, relatively low-speed, storage circuit for receiving the correction data from the outside source and storing the received correction data; and means for transmitting the correction data stored in the non-volatile storage circuit to the volatile storage section of said driver when said means is in a first state, and for transmitting the correction data from the outside source to the driver, without writing the correction data in said non-volatile storage circuit, when said means is in a second state.