4-15
For the ink cartridge, to maintain image quality, we recommend that you use the
ink completely within half a year after an ink cartridge has been opened.
Print head replacement guidelines :
• Black print head: One with short period either within one year after you buys it
or when four black ink cartridges has been used.
• Color print head: One with short period either within one year after you buys it
or when two color ink cartridges has bee used for the most
frequently used color.
*1 Correct print head and ink cartridge performance are not guaranteed up to the time
that the “replacement mark” is displayed.
CAUTION
• Be sure to replace the print head promptly when the replacement mark is dis-
played. Continuing to use the printer without replacing the indicated print head
may cause a malfunction.
• Printing is halted to protect the print head when a replacement mark is dis-
played for an ink cartridge. Replace the indicated cartridge. Printing can be
restarted after the cartridge has been replaced.
CHECKPOINT
See Chapter 5, "Maintenance" for details on how to replace the print heads and
ink cartridges.
