Canon PIXMA MP450 User Manual page 82

Knowing When To Replace A FINE Cartridge
It is important to identify the empty Cartridge using the LCD and replace it.
Note
The following message appears on the LCD when ink becomes empty during printing.
Printing will resume as soon as the FINE Cartridge is replaced and the Scanning Unit is closed.
Press [Stop/Reset] to cancel the current print job.
Press [OK] to resume printing with an empty FINE Cartridge.
When printing is finished, replace the FINE Cartridge immediately. If you continue printing with
an empty FINE Cartridge, it will be a cause of trouble.
* Be sure to press [OK] with all the FINE Cartridges installed. Printing does not resume if
any of the FINE Cartridges are left uninstalled.
* If you continue to print with an empty FINE Cartridge, the ink level on the LCD will not be
displayed correctly.
80
Routine Maintenance
Should missing characters or white streaks appear despite sufficient ink
levels, see "When Printing Becomes Faint Or Color Is Incorrect" on
page 85.
Chapter 10