| 摘要 |
<p>Clocking circuitry for providing clocking signals in accordance with a preprogrammed sequence of rates. An addressable memory (11) is included having data defining such rates with a voltage controlled oscillator (VCO) (8) controlled via data from the addressable memory (11). An address producing means is controlled by the clocking signals of the VCO (8) to provide an address signal for the memory in response to each clocking signal. The clocking circuitry is used with a moving mirror (3) for a laser printer apparatus, the mirror (3) having a known repetitive movement which is used in establishing the preprogramed sequence of rates.</p> |
