5-14 Functional Information
EN
Motors
See “Timing Diagram” on page 5-50 for specific timing details for the
printer motors.
The Main Motor, MT1, is controlled by the Engine Controller Board.
The Main Motor drives the main Gear Assembly and rotates during
the Initial Rotation period (following power-on), the Print period, the
Last Rotation period, or whenever the printer’s Top Cover is opened
and closed.
Figure 5-9 Main Motor Control
The Main Motor is a DC brushless motor and is unified with the motor
drive circuit.
The CPU (IC501) sets the main motor drive signal (/MON) to “L” and
rotates the main motor. When printing at 1200 dpi, the CPU sets the
main motor rotation switching signal (/HALF) to “L” and decreases the
rotation speed of the main motor to half.
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