Driving circuit, printed wiring board, and print head with clock inverting circuits

摘要

A print head includes a driving circuit having a cascaded series of driver integrated circuits mounted on a printed wiring board. Differential clock signals are supplied to the driver integrated circuits to synchronize the transfer of print data through the cascaded series. Even-numbered driver integrated circuits and odd-numbered driver integrated circuits are connected differently to the clock signal lines, but the even-numbered (or odd-numbered) driver integrated circuits generate an inverted internal clock signal, thereby compensating for the difference. This enables the clock signal lines to be mutually adjacent and to have a weaving layout that yields improved noise immunity.