a. Sending in Mode B. Loading message data into image memory prior to transmission, and
retrieving message data from receive memory after reception, can be performed individually by each
operator. However, when transmitting and receiving the message data from memory to memory, voice
communication between the operators is desirable to coordinate the activity with the receive-ready tone.
b. Loading memory. Hard to read messages should be scanned at the low speed setting of the
HI RES LO SP/HI SP LO RES switch, but normally the high speed setting should be used to save scan
and print time. The GRAY B/W switch should be set to B/W unless gray shades are required. Normally
COMP (compressed) would be selected for Mode B operations over a relatively noise-free link. To read
the message data into memory, the MEMORY LOAD push button is pressed. The MEMORY LOAD
indicator flashes while the message is being read into memory. When this operation is complete, the
document is ejected from the drum, and the MEMORY LOAD indicator remains on (steady) indicating
that the image memory contains data to be transmitted.
c. Transmit (burst) and receive operation. When the MEMORY LOAD indicator of the sending
LDF changes to steady on, indicating transmit memory is ready for transmission, the receiving LDF
operator is contacted to establish voice communication. The receiving operator presses the RCV push
button. When the sending operator hears the receive-ready tone, he presses the SEND push button. The
SEND push button should not be pressed until the tone has ceased or part of the message may be lost.
The SEND indicator flashes during transmission and goes out when transmission is complete. The
receiving operator's RCV indicator flashes slowly while awaiting reception, rapidly while receiving the
message, and remains steady on when reception is complete and in memory. With a copyset inserted on
the drum, pressing the RCV push button a second time enables the LDF to print out the message from
receive memory. The RCV indicator remains on until the message is printed out.