Image forming apparatus

Details Image forming apparatus Image forming apparatus

2005-12-14

2008-10-28

Glass, Erick (Department: 2837)

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Running-speed control

Reexamination Certificate

active

07443114

ABSTRACT:
A position detecting unit detects rotational position information of a plurality of motors. A phase difference control unit delays an excitation phase switching pulse of at least one of the motors by a predetermined amount on the basis of the rotational position information of the motors and predetermined time difference information.

REFERENCES:
patent: 5121327 (1992-06-01), Salazar
patent: 6278857 (2001-08-01), Monji et al.
patent: 2000-238374 (2000-09-01), None

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