Carriage Relay Pcb; Carriage Pcb Components - Canon iPF6100 Service Manual

Chapter 2
The DIMM comprising a 128-MB SDR-SDRAM is connected to the 32-bit data bus to be used as a work area.
During print data reception, it is also used as an image buffer.
It cannot be expanded.
g) FLASH ROM (IC701)
A 12-MB flash ROM is connected to the 8-bit data bus to store the printer control program.
h) EEPROM (IC802)
The 128-KB EEPROM stores various setting values, adjustment values, log data, counter values related to the
user/servicing.
i) SO-DIMM
The 256-MB SO-DIMM (J401) is connected to the 32-bit data bus to be used as a work area.
During print data reception, it is also used as an image buffer.
It cannot be expanded.
MEMO:
After replacement of the main controller PCB, the printer must be started up in the service mode to take over
the setting and adjustment values to the new PCB properly (the service mode will be switched to the PCB
replacement mode automatically).

2.4.3 Carriage Relay PCB

2.4.3.1 Carriage PCB components

0013-4310
IC 7 IC 6
IC 3
IC 1
F-2-40
a) Latch ICs (IC1 and IC3)
DI sensor reading control function
This function obtains the DI sensor value in the printhead and head rank for each color and sends it to the main
controller PCB based on the control signals from the main controller.
Environmental temperature reading control
This function sends the environmental temperature detected by the thermistor on the board based t the main
controller PCB based on the control signals from the main controller PCB.
Image data relay function
This function relays the image data from the main controller PCB to the printhead.
The function for processing image data is not supported.
b) Multi sensor control ICs (IC6 and IC7)
These ICs are used to generate the multi sensor LED control signal and adjust the gain.
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