Canon PRO-100S series Online Manual page 145

• Once an ink tank has been installed, do not remove it from the printer and leave it out in the open.
This will cause the ink tank to dry out, and the printer may not operate properly when it is reinstalled.
To maintain optimal printing quality, use an ink tank within six months of first use.
Note
• Color ink may be consumed even when printing a black-and-white document or when black-and-
white printing is specified. Every ink is also consumed in the standard cleaning and deep cleaning of
the print head, which may be necessary to maintain the performance of the printer.
When an ink tank is out of ink, replace it immediately with a new one.
Useful Information about Ink
145