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C7350/7550 User’s Guide: Maintenance • 490
12. Gently wipe the LED head surface with LED lens cleaner or a
soft tissue.
LED head clean.eps
13. Close the top cover.
close top cover.eps
CAUTION
Do not use methyl alcohol or other solvents on the LED
head. These solvents damage the lens surface.
NOTE
After installing the new toner cartridge, the message on
the display TONER LOW or CHANGE TONER should
disappear. However, this sometimes does not disappear
until printing has been carried out. If it still does not
disappear, reinstall the toner cartridge.