Carriage Relay Pcb; Carriage Relay Pcb Components; Head Relay Pcb; Head Relay Pcb Components - Canon imageprograf ipf700 Service Manual

Chapter 2

2.4.3 Carriage Relay PCB

2.4.3.1 Carriage relay PCB components

a) Receiver ASIC (IC701)
This ASIC relays the image data which are output from the main controller. This ASIC does not process the
image data.
b) Regulator IC (IC302)
This IC generates power for the printhead heater.

2.4.4 Head Relay PCB

2.4.4.1 Head relay PCB components

a) Latch IC (IC201)
DI sensor read control function
Obtains reading value of the DI sensor in the printhead and the head rank value for each color and outputs them
to the main controller based on the control commands from the main controller.
Environment temperature read control function
Outputs the environment temperature detected by the thermistor on the head relay PCB to the main controller
based on the control commands from the main controller.
Relay function of the power to the logic components in the printhead
Supplies the power to the logic components in the printhead based on the control commands from the main
controller.
b) Thermistor (TH201)
The environment temperature surrounding the head relay PCB detected by this thermistor is output to the main
2-30
IC701
F-2-23
TH201
IC201
F-2-24
IC302
IC204
IC205
0012-6316
0012-6318