Power On Sequence - Sharp FO 4400 - B/W Laser - All-in-One Service Manual

FO-4400U
FO-CS1

[3] Power On Sequence

START
CPU initialized
Dual Port RAM check
Power on
memory clear?
NO
ROM check No
Option board
error check
OK
Read Entry data from Flash
MODEM initialized
STAND BY
YES
Entry data clear
Image data clear
ERROR MESSAGE
Error
"MEMORY CLEAR" display
"1" Key
YES
"2" Key
YES
"COPY" Key
"3" Key
YES
7 – 3
NO
NO
PROCESS CHECK
YES
NO
NO