Dc Controller - Canon LBP351 Series Service Manual

DC Controller

The DC Controller is a circuit to control the operation sequences of this machine, and controlled by the CPU in the DC Controller.
The following explains the operation of the DC controller.
1. When the Power Switch of this machine is turned ON, DC power is supplied from the Power Supply PCB to the DC Controller.
2. The CPU in the DC Controller starts printer operation control.
3. When this machine enters the standby state, the CPU outputs signals to drive various loads such as laser diodes, motors,
and solenoids based on the print instruction command and image data input from the Main Controller.
The following shows a block diagram of this circuit.
Fixing
Assembly
J No.
Electric code
J30 UN8
J31 SW103
J32 UN8
J71 SL102
J72 SL101
J73 M103
J74 TG101
J75 FN102
J76 PS104
J77 CL101
J78 SW101
J79 FN104
J80 -
J81 PS105
J82 UN1
J83 -
J84 UN14
J85 UN1
J86 -
UN13
J87 M102
J88 -
-
J89 M299
J90 -
Power Supply
PCB
AC input
AC Relay PCB
Connection destination
Sleep Interface PCB
Door Switch
Sleep Interface PCB
Multi-purpose Tray Pickup Solenoid
Pickup Solenoid
Lifter Motor
Cartridge Tag
Fan 2
Delivery Full Sensor
Pickup Clutch
Interlock Switch
Fan 4
-
Multi-purpose Tray Sensor
Power Supply PCB
Envelope Feeder Driver PCB
Duplex Driver PCB
Power Supply PCB
Laser Scanner Motor
BD PCB
Main Motor
Paper Feeder (Option)
Paper Deck (Option)
Fixing Motor
-
DC controller
Duplex Feed Unit
Paper Feeder Unit (Op)
Paper Deck Unit (Op)
Env. Feeder Unit (Op)
Laser Scanner Unit
Name
37
2. Technical Explanation (Device)
Motor
Fan
Solenoid
Photointerrupter
Sensor
Switch
J No.
J810
J33
J808
-
-
-
-
-
J176
-
-
-
-
J123
J128
J118, J901
J124, J1501
-
J143
J144
J187
J1602
J1701
J221
-