| 摘要 |
This invention relates to an image forming apparatus for forming an image using a pulse modulated signal based on an input image signal. A circuit for pulse-modulating an image signal and a circuit for driving a recording element are integrally formed on a single circuit board, or a circuit means for isolating a signal level of another circuit, e.g., a circuit for digitally processing an image signal or a circuit for generating a control signal from that of the pulse modulation circuit is arranged, so that a pulse modulation signal to be applied to the recording element is stabilized, and a high-frequency operation is allowed.
|
