I just saw this info on the printer newsgroup and wanted to pass it on. I can't verify that this is a valid approach to dealing with the chipped carts and it would also wipe out other data such as the waste ink pad status, but if anyone who wants to try it and report back it would be valuable to others with the new generation of Canon printers. I'll copy it below just as it appeared from the original poster. I would stress that this is not information that I am originating!!!!!
----------------------------------------
----------------------------------------
Refilling can be done with no warnings. It will be need to reset
IP4200's EEPROM. Please read carefully the indications below. Do that
only if you know what are doing!!!
----------------------------------------------------------------------------
1) With the printer power turned off, while pressing the Resume/Cancel
button, press and hold the Power button. (DO NOT release the buttons.
The Power LED lights in green to indicate that a function is
selectable.)
2) While holding the Power button, release the resume/Cancel button.
(DO NOT release the Power button.)
3) While holding the Power button, press the Resume/Cancel button 2
times, and then release boththe Power and Resume/Cancel buttons. (Each
time the Resume/Cancel button is pressed, the Alarm and Power LEDs
light alternately, Alarm in orange and Power in green, starting with
Alarm LED.)
4) When the Power LED lights in green, press the Resume/Cancel button
the specified number of time(s) setting).
----------------------------------------------------------------------------
Time(s) LED indication Function Remarks times Green (Power) Power off
When the print head is not installed, the carriage returns and locks in
the home position capped.
----------------------------------------------------------------------------
1 time Orange (Alarm) Service test print .
2 times Green (Power) EEPROM information print
3 times Orange (Alarm) EEPROM initialization
4 times Green (Power) Waste ink counter resetting
5 times Orange (Alarm) Destination settings After entering the
destination settings mode, press the Resume/Cancel button the specified
number of time(s) to select the destination. For detail, see
"Destination settings procedures" below.
6 times Green (Power) Print head deep cleaning (Cleaning of both black
and color)
7 times Orange (Alarm) Reserved
8 times Green (Power) CD / DVD check pattern
9 times Orange (Alarm) CD / DVD print position correction (horizontal:
X direction)
10 times Green (Power) CD / DVD print position correction (vertical: Y
direction)
11 to 13 times Orange, Green, Orange(Alarm, Power,Alarm) Return to the
menu selection
14 times Green (Power) Left margin correction Not usedin servicing.
15 times Orange (Alarm) Return to the menu selection
----------------------------------------------------------------------------
Time(s) LED indication Destination CD / DVD print
----------------------------------------------------------------------------
0 times Green (Power) No change of the destination
1 time Orange (Alarm) Japan Supported
2 times Green (Power) Korea Not supported
3 times Orange (Alarm) US Not supported
4 times Green (Power) Europe Supported
5 times Orange (Alarm) Australia Supported
----------------------------------------------------------------------------
----------------------------------------------------------------------------
To turn off printer (getting out of service mode), push Resume/Cancel
button - 15 times Orange (Alarm) Return to the menu selection and the
Power Off button.
----------------------------------------------------------------------------
I have still the original cartriges and I reffiled 5 times until now
and I don't have any problem. BTW, excepting the lack of reffiling, the
IP4200 is a great printer.
Hope to help this information.
----------------------------------------
----------------------------------------
Refilling can be done with no warnings. It will be need to reset
IP4200's EEPROM. Please read carefully the indications below. Do that
only if you know what are doing!!!
----------------------------------------------------------------------------
1) With the printer power turned off, while pressing the Resume/Cancel
button, press and hold the Power button. (DO NOT release the buttons.
The Power LED lights in green to indicate that a function is
selectable.)
2) While holding the Power button, release the resume/Cancel button.
(DO NOT release the Power button.)
3) While holding the Power button, press the Resume/Cancel button 2
times, and then release boththe Power and Resume/Cancel buttons. (Each
time the Resume/Cancel button is pressed, the Alarm and Power LEDs
light alternately, Alarm in orange and Power in green, starting with
Alarm LED.)
4) When the Power LED lights in green, press the Resume/Cancel button
the specified number of time(s) setting).
----------------------------------------------------------------------------
Time(s) LED indication Function Remarks times Green (Power) Power off
When the print head is not installed, the carriage returns and locks in
the home position capped.
----------------------------------------------------------------------------
1 time Orange (Alarm) Service test print .
2 times Green (Power) EEPROM information print
3 times Orange (Alarm) EEPROM initialization
4 times Green (Power) Waste ink counter resetting
5 times Orange (Alarm) Destination settings After entering the
destination settings mode, press the Resume/Cancel button the specified
number of time(s) to select the destination. For detail, see
"Destination settings procedures" below.
6 times Green (Power) Print head deep cleaning (Cleaning of both black
and color)
7 times Orange (Alarm) Reserved
8 times Green (Power) CD / DVD check pattern
9 times Orange (Alarm) CD / DVD print position correction (horizontal:
X direction)
10 times Green (Power) CD / DVD print position correction (vertical: Y
direction)
11 to 13 times Orange, Green, Orange(Alarm, Power,Alarm) Return to the
menu selection
14 times Green (Power) Left margin correction Not usedin servicing.
15 times Orange (Alarm) Return to the menu selection
----------------------------------------------------------------------------
Time(s) LED indication Destination CD / DVD print
----------------------------------------------------------------------------
0 times Green (Power) No change of the destination
1 time Orange (Alarm) Japan Supported
2 times Green (Power) Korea Not supported
3 times Orange (Alarm) US Not supported
4 times Green (Power) Europe Supported
5 times Orange (Alarm) Australia Supported
----------------------------------------------------------------------------
----------------------------------------------------------------------------
To turn off printer (getting out of service mode), push Resume/Cancel
button - 15 times Orange (Alarm) Return to the menu selection and the
Power Off button.
----------------------------------------------------------------------------
I have still the original cartriges and I reffiled 5 times until now
and I don't have any problem. BTW, excepting the lack of reffiling, the
IP4200 is a great printer.
Hope to help this information.