Lexmark W812 - And Detack Saw (3;3)

5-26 Service Manual
4022-XXX
Engine Board <−> HVPS <−> Toner Cartridge (BCR and
Mag. Roll), Transfer Roller and Detack Saw (3/3)
CAUTION: High voltage is applied to the CR (JP001/JP002), DB (JP003/JP004),
TR (P/J136 to P/J1361), and DTS (P/J135 to P/J1351); therefore, do not touch them
during power-on and do not come into contact with the electric conductor.
Note: The CR (JP001/JP002), DB (JP003/JP004), TR (P/J136 to P/J1361), and
DTS (P/J135 to P/J1351) cannot be measured in a field.
Engine Board <−> HVPS <−> Clutch Registration, Sensor
Registration and Sensor Option1 (1/1)
The P/J13 - P/J131 are described partially.
Signal names for Engine Board ↔ HVPS ↔ Clutch Registration and Sensor Registration
Signal Name Explanation
/REGI CLUTCH ON A clutch registration control signal. When this signal is set low, the clutch
registration is activated; otherwise, the clutch registration is released.
/REGI SNR ON A signal sent from the sensor registration. This signal is set low when the
sensor registration receives the light.
/OPT1 ON A signal sent from the sensor option1. This signal is set low when the sen-
sor option1 receives the light.
ENGINE
BOARD
P/J13
/REG CLUTCH ON
2
19
24V
P/J131
HVPS
3.3V
P/J26
1
2
3
1
2
3
P/J28
/OPT1 ON
LG
Pull up 3.3V
/REGI SNR ON
LG
3
2
1
P/J281
P/J261
1
2
3
4
4
3
2
1
P/J1331
/REGI CLUTCH ON
Clutch Regi
Drive Asm
Sensor Regi
3
2
1
24V
Sensor Option 1
P/J133
Pull up 3.3V
2
19