We have a Canon MP540 printer that was purchased in Aust. and it will not recognise ink cartridges for that model purchased in Singapore.

1: Remove Cartridge
2: Unplug the AC Power Cord
3: Hold down the RESUME button
4: Release RESUME after plugging in the AC Power cord.
5: Press the RESUME once within 5 seconds and release the RESUME .
6: Press and HOLD RESUME for two seconds or more and release it.
7: Press and HOLD RESUME for two seconds or more and release it.
8: Unplug AC Power Cord to set data.

and

1. Click on the start menu
2. Go in to Control Panel
3. Click on Printers and Faxes
4. Right click on your printer (Canon IP1600)
5. Go down to properties
6. Then click on maintenance

Step 2 - Click on ‘View Printer Status…..’

Step 3 - Click on Option

Finally, click on enable status monitor. This will turn off the monitor and allow you to use
refilled ink cartridges.
If at any time you get the ‘Ink out’ message on your PC a light under your power button on the
printer will flash. To continue printing, simply press the button and click the close button on the
warning (marked X).
You may need to do this a few times also run the printhead alginment page after.