Canon MF 3240 Series Basic Manual page 55

● Deleting One-Touch Speed Dialing
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[OK]
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Press [Additional Functions].
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Press [ ] or [
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Press [ ] or [
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Press the one-touch speed dialing key (01 to 07) you want to delete, then
press [OK].
] to select <ADDRESS BOOK SET.>, then press [OK].
] to select <1-TOUCH SPD DIAL>, then press [OK].
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