Sharp UX-B20 Operation Manual page 10

Number keys
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Use these keys to dial numbers, and enter numbers and letters when storing
auto-dial numbers.
POLL key
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Press this key after dialing another fax machine to receive a document
(previously loaded in the other machine's feeder) without assistance from the
operator of the other machine (page 69).
HOLD key
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Press this key to put the other party on hold during a phone conversation
(page 54).
SPEAKER key
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Press this key to listen to the line and fax tones through the speaker when
faxing a document (page 39).
Note: This is not a speakerphone. You must pick up the handset to talk with
the other party.
STOP key
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Press this key to cancel an operation before it is completed.
START/MEMORY key
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Press this key after dialing to begin fax transmission (page 40). Press this key
before dialing to send a fax through memory (page 48). The key can also be
pressed in the date and time display to show the percentage of memory
currently used.
COPY/HELP key
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When a document is in the feeder, press this key to make a copy of the
document (page 59). At any other time, press this key to print out the Help
List, a quick reference guide to the operation of your fax machine.
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