I believe the 460 and the 440 are the same models (just different
numbers based upon where they were sold)
I have the following sequence for the 440 model:
To set the printer into EEPROM management mode:
With printer OFF hold down Load/Eject+Cleaning buttons, while holding
press the ON SWITCH
This Enters the EEPROM Reset mode. (The Load/Eject LED blinks for a few
seconds.)
To Reset the EEPROM:
While the Load/Eject LED is blinking (for about 2 seconds), press down
the Cleaning switch for 10 seconds.
After 10 seconds, both Bk and CMY ink LEDs come ON simultaneously.
Confirming the both LEDs are ON, release the Cleaning switch. The
printer automatically starts initialization operation to reset the
specified addresses in the EEPROM
Once your printer has completed the initialization process, turn it off
via the power button.
When you next need to turn it on, it should function normally.
Keep in mind that if the ink pads are full, and you reset them without
replacement the ink could leak from the bottom of the printer.
Art