Canon W6400 Series, Service Manual

Page: 69 / 196

Chapter 2
2-25
2.4 Printer Electrical System
2.4.1 Outline
2.4.1.1 Overview
0008-6352
The printer electrical system consists of the system controller, engine controller, and power supply, all of which are mounted at the rear of the printer; the
carriage relay PCBs, head relay PCBs, and printhead, which are located in the carriage unit; the operation panel on the upper right cover; and other electrical
components, such as the sensors and motors.
The system controller manages image data, and the engine controller manages all electrical components. The other relay PCBs and drivers control the
various functions under the management of the engine controller.
F-2-28
Power supply
+3.3 V generation
function
+5.1 V generation
function
+26.5 V generation
function
Printhead
Carriage unit
Head relay PCB
Temperature reading
control function
Sensors
DI sensor reading
control function
Sensors
Feed
motor
AC inlet
Optional connector
assembly
Fan control function
Solenoid control function
Motor control
function
Sensor detection
function
Image data control function
- Mask conversion
- Differential conversion
Remaining ink level
detection function
Engine controller
Ink tank
Ink tank unit
Solenoids
Fans
Valve motor
Purge unit
Carriage motor
Host computer
Operation panel
Interface control
function
Image data control function and RGB
multi-data 6-color binary conversion
System controller
Operation panel
control function
Ink tube unit
Head relay PCB
Printhead driving power
supply generation function
Image data demodulation
function