HP LASERJET ENTERPRISE M775dn - Page 41

DC controller
The DC controller controls the operational sequence of the printer.
Figure 1-3 DC controller block diagram
Power
supply fan
Image scanner
Switch
ITB ass’y
Cartridge
(x 4)
Transfer 1
High-voltage
power supply
T2 roller
Fuser
DC controller
AC input
Low-voltage
power supply
Formatter
Laser scanner ass’y
Motor
Solenoid
Photointerrupter
Switch
Fuser fan
Accessory
Sensor
LED
ICB
Formatter fan
Sub power
supply
Staple stacker
Sub power
supply fan
Cartridge fan
Transfer 2
High-voltage
power supply
Developing
High-voltage
power supply
Table 1-2 Electrical components
Component type Abbreviation Name
Solenoid SL1 Tray 2 cassette pickup solenoid
SL2 Tray 1 (MP Tray) pickup solenoid
SL3 Duplex reverse solenoid
SL5 Primary transfer (T1) disengagement solenoid
ENWW
Engine-control system
9