AR-FX7 (serv.man3). Operation Manual - Sharp Copying Equipment User Guide / Operation Manual. Page 16

When memory transmission mode is selected, the original is scanned into memory and then sent to the destination. 
When the RSPF is used for transmission, transmission of the first scanned page begins while the remaining pages 
are scanned. (See "Quick On-line transmission" below.)
If Quick On-line transmission is not enabled, or if the document glass is used for scanning, all pages of the original 
are scanned into memory before the destination is dialled and transmission begins.
The number of pages that can be held in memory varies depending on the content of the pages, the transmission 
settings, and the amount of memory installed (p.109).

When the RSPF is used for memory transmission and there are no previously stored jobs waiting or in progress (and 
the line is not being used), the machine dials the destination and begins transmitting scanned pages while the 
remaining pages are scanned. This transmission method is called Quick On-line. The messages "SCANNING 
ORIGINAL." and "CONNECTING." both appear until scanning of the final page is completed.
If the receiving party is busy when a Quick On-line transmission is attempted, the transmission will be automatically 
reattempted at a later time. (See "If the receiving party is busy" on page 15.)

When direct transmission mode is selected, the document is directly transmitted after the destination is dialled.
Direct transmission mode does not use memory, and thus transmission is possible even when the memory is full.

When On-hook dialling is used, direct transmission mode is automatically selected (memory transmission mode 
cannot be used).

• The machine is initially set (factory setting) to perform Quick On-line transmission. If desired, you can turn off 

this function in the key operator programs (see "QUICK ON LINE SENDING" (p.101)).

• When an original is transmitted using the following methods, the job will be stored in memory (Quick On-line 

transmission will not be performed):
• Sending from the document glass  • Broadcast transmission (p.26)  • Timer transmission (p.30)  
• F-code transmission (Chapter 4)

• A subsequent transmission cannot be stored when direct transmission mode is selected.
• When the document glass is used, only one page can be faxed in direct transmission mode.
• The following funtions cannot be used when direct transmission mode is selected:

image rotation (p.15), Broadcasting (p.26) and other functions for transmission to multiple destinations, timer 
transmission (p.30), two-sided original scanning (p.17), divided page transmission (p.40), and job build (p.18).