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.

a) 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 "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.

4.3.16 Opening the Cap/Moving the Wiper Unit

This section explains how to open the cap and ink supply valve manualy.

To move the carriage whth the power off, you need to release the carriage lock pin and cap manually.

1. Opening the Cap/Releasing the Carriage Lock Pin

1) Open the top cover, and then remove the output tray, right circle cover, right upper cover, operation panel, mist filter, filter cover, filter, and right cover. Refer

to DISASSEMBLY/REASSEMBLY > points to Note on Disassembly and Reassembly > External Cover.

2) Turn the gear[1] of the purge unit[3] in the direction of the arrow. The cap[5] and lock pin[4] move down, allowing you to move the carriage[2].

2. Moving the Wiper Unit

1) Open the top cover, and then remove the output tray, right circle cover, right upper cover, operation panel, mist filter, filter cover, filter, and right cover. Refer

to DISASSEMBLY/REASSEMBLY > points to Note on Disassembly and Reassembly > External Cover.

2) To move the wiper unit[3], turn the gear[1] of the purge unit[2] in the direction of the arrow.

[2]

[3]

[1]

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[4]

[5]

[3]

Chapter 4

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