Canon iPF710 - imagePROGRAF Color Inkjet Printer, Service Manual

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Chapter 4
4-27
4.3.14 PCBs
0013-5637
Do not replace the main controller PCB and maintenance cartridge relay PCB(ROM board) at the same time.
These PCBs store important data such as settings and carriage drive time. Before replacement of enther PCB,
the data stored in it is move to the other PCB through internal communication so that it can be taken over to the
new PCB automatically. This is the reason whey the two PCBs should not be replaced at the same time.
If you want to replace both PCBs at the same time, first carry out the procedure "a" and then carry out the
procedure "b".
After replacing whth the maintemance controller PCB or maintenance cartridge relay PCB which are supplied
as service parts, check that the firmware to the latest version.
a) Procedure for replacing the maintenance cartridge relay PCB(ROM board)
1) Turn off the printer and unplug the power cord.
2) Replace the maintenance cartridge relay PCB.
3) Plug the power cord to the outlet, and then turn on the printer whth the PAPER SOURCE button and
INFORMATION button pressed down. (The printer will start up in the PCB Replacement mode.)
4) Check that "Initializing" appears on the display, and then release the buttons. (When the printer enters the
PCB Replacement mode, the message lamp goes on.)
5) What until "REPLACE MODE" appears on the display.
6) Select "MC BOARD", and then press the ok button
7) Check that "TURN POWER OFF" appears on the display, and then turn off the printer.
8) Turn on the printer.
9) Check the firmware version. If the firmware is not the latest version, update.
b) Procedure for replacing the main controller PCB
1) Turn off the printer and unplug the power cord.
2) Replace the main controller PCB.
3) Plug the power cord to the outlet, and then turn on the printer whth the PAPER SOURCE button and
INFORMATION button pressed down. (The printer will start up in the PCB Replacement mode.)
4) Check that "Initializing" appears on the display, and then release the buttons. (When the printer enters the
PCB Replacement mode, the message lamp goes on.)
5) What until "REPLACE MODE" appears on the display.
6) Select "CPU BOARD", and then press the ok button
7) Check that "TURN POWER OFF" appears on the display, and then turn off the printer.
8) Turn on the printer.
9) Check the firmware version. If the firmware is not the latest version, update.