Patent ID: 11876940
Assignee: RICOH COMPANY, LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  B  G | IPC B  G  H

Claim 8:
9. An image forming apparatus comprising:
a first scanned medium that is scanned with a first optical signal based on first image data;
a second scanned medium that is scanned with a second optical signal based on second image data;
deflecting means for deflecting the first optical signal and the second optical signal;
synchronization detection signal generation means for generating a synchronization detection signal representing a first scanning start time to start scanning the first scanned medium; and
pseudo synchronization detection signal generation means for generating a pseudo synchronization detection signal with the synchronization detection signal, the pseudo synchronization detection signal representing a second scanning start time to start scanning the second scanned medium,
the pseudo synchronization detection signal generation means
based on a previously calculated period of the synchronization detection signal and a period of the synchronization detection signal counted on a particular surface of the deflecting means, generating a particular value for generating the pseudo synchronization detection signal, and
based on the generated particular value, starting generating the pseudo synchronization detection signal at a time at which the synchronization detection signal is enabled.