Toshiba e-STUDIO2500c, Service Manual, Page: 339 / 402

15
May 2006 © TOSHIBA TEC e-STUDIO2500c/3500c/3510c FUSER UNIT / PAPER EXIT SECTION
15 - 15
15.5.3 Exit motor control circuit
The exit motor is a stepping motor driven by the control signal output from the engine CPU on the LGC
board and rotates the exit roller.
The exit motor is driven by the pulse signal (EXTMA, EXTMB, EXTMC, EXTMD) output from the motor
driver. These pulse signals are formed based on the reference clock (EXMCK) and output only when
the enable signal (EXMEN) is a high level. Also, the rotation speed or direction of the motor can be
switched by changing the output timing of each pulse signal.
Fig. 15-7
* CW: Clockwise rotation, CCW: Counter clockwise rotation viewing from the axis
Signal Function
Status
High level Low level
EXMCK Reference clock --- ---
EXMEN Enable signal ON OFF
EXMCW Rotation direction signal CCW CW
EXMRST Reset signal Normal operation Reset
IC53
Engine CPU
EXMEN
EXMCK
Exit motor
EXMRST
EXMCW
EXTMB
EXTMA
EXTMD
EXTMC
IC5
Motor driver
LGC board
+24VD2 +24VD2 +5.1VB
SG PG
IC25