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HAKUBA 26PPM Laser Printer - Base Engine Technical Manual
Version 1.0
Wiring Diagrams and Interconnections
DB7 PWBA HKB26 MCU <=> Motor Assy Main, Motor Assy Exit and Sensor Assy CRU
The following table shows the signal names for the PWBA HKB26 MCU <=> Motor Assy Main,
Motor Assy Exit and Sensor Assy CRU path:
The following table shows signal names and output levels for the PWBA HKB26 MCU <=> Motor
Assy Main, Motor Assy Exit and Sensor Assy CRU path:
Signal Name
Description
5VLD
+5V power source to the Laser Diode (0V when the CRU is not in place.)
/CRU
Signal which activates the 5VLD circuit (0V when the CRU is not in place)
/EXIT XB
Phase XB drive signal for the stepping motor (LOW when driving, and High when not driving)
/EXIT XA
Phase XA drive signal for the stepping motor (LOW when driving, and High when not driving)
/EXIT B
Phase B drive signal for the stepping motor (LOW when driving, and High when not driving)
/EXIT A
Phase A drive signal for the stepping motor (LOW when driving, and High when not driving)
/M RSV
/MALRM
Main motor monitor signal. Goes Low when the rotation of the Motor Assy Main is abnormal.
/MMOT ON
Main motor control signal to turn the Motor Assy Main on and off.
Pin
Signal Name
Signal Direction
C: Censor Assy CRU,
ME: Motor Assy Exit,
MM: Motor Assy Main
M: MCU
Trigger
HIGH
Level
LOW
Level
P25-3
5V LD
C => M
Level
5V
0V
P25-2
/CRU
C => M
Level
5V
0V
P32-5
/EXIT XB
ME <= M
Level
24V
0V
P32-4
/EXIT XA
ME <= M
Level
24V
0V
P32-3
/EXIT B
ME <= M
Level
24V
0V
P32-2
/EXIT A
ME <= M
Level
24V
0V
P29-9
/M RSV
MM <= M
Level
3.3V
0V
P29-8
/MALARM
MM => M
Level
3.3V
0V
P29-7
/MMOT ON
MM <= M
Level
3.3V
0V
Summary of Contents for b 6100
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Page 396: ...12 26 Hakuba 26PPM Laser Printer Base Engine Technical Manual Version 1 0 Parts List...