Service manual

VI-37
ABCDEFGHJ
1 2 3 4 5 6
FUSER DRIVE ASSY PL5.1
PWBA HBN DRV PL12.1
2.9.2 FUSER DRIVE CONTROL
MCU HL-4200
PL12.1
CONTROL LOGIC
J11
12 13 14 15 16
J41
29 28 27 26 25
GRY GRY
GRY GRY
GRY GRY
GRY GRY
GRY GRY
D/A FUSER MOTOR
2.9.1
FUSER DRIVE
DRIVE MECHANISM
1
J49
1 2 3
+24VDC
SWITCHED
RED RED
WHT WHT
BLK BLK
FUSER_U FUSER_V FUSER_W
DO-d
DO-e
(NORMAL SPEED)
(HALF SPEED)
DC COM
MOTOR DRIVE
MOT
FUSER DRIVE ASSY ON
DO-1d
(LOW SPEED)
DO-f
FUSER DRIVE ASSY OFF
1
FUSER CLOCK XFUSER ENA FUSER F/H FUSER CW/CCW
Phase
Step(3phases)
1
+
-
2
+
-
3
+
-
4
-
+
5
-
+
6
-
+
Motor type: Hybrid stepping motor Stepping angle: 3.75 Winding resistance: 1.4 10% / phase (25 C) Exciting sequence is shown in the table below.
FUSER_U
FUSER_V
FUSER_W
2.9 Fusing and Transportation