Toshiba e-studio281c - Drive Circuit of Developer Motor

e-STUDIO281c/351c/451c © 2005 - 2008 TOSHIBA TEC CORPORATION All rights reserved
DRIVE SYSTEM
9 - 8
9.4.2 Drive circuit of developer motor
Fig. 9-6
1) LGC board provides a signal to control the rotation of the developer motor (M11).
(DVMON: Developer motor ON signal)
When signal from LGC board is the level "L", the developer motor stops.
2) DVMCW signal controls the rotational direction of the motor. The motor rotates forward (CCW) but
does not rotate backward (CW) in actual movement. Namely, DVMCW signal is always output level
"H".
Signal level of motor circuit
Signal Level “L” Level “H” Remarks
DVMON ON OFF Developer motor ON signal
DVMCW CW CCW Developer motor rotational direction signal
DVMCK — — Developer motor reference clock signal
DVMPL Locked Unlocked Developer motor PLL signal
LGC board
Developer motor
DVMON
+24V
+5.1V
DVMCW
DVMCK
DVMPL
Gate array
#1