Sharp SF-2052 Serviceanleitung Seite 205

2. Operations at power ON
Power ON
Main CPU initial setting
I/O initial setting
Memory initial setting
Operation control CPU reset
Mirror CPU reset
(RADF CPU reset)
Finisher CPU reset
Interlock door check
Pass sensor check (Misfeed check)
Paper feed tray unit
check
Ready lamp ON
3. Main circuit
The main circuit of this model is composed of the following control
circuits:
•
Paper feed/transport control circuit
•
Process control circuit
•
Fusing control circuit
•
Toner supply control circuit
•
Duplex copy control circuit
•
RADF control circuit
•
Sorter control circuit
•
Paper feed tray control circuit
•
CL light quantity control circuit
•
PPC communication control (RIC) circuit
•
Auditor control circuit
(Note 1) When toner density level is above the specified level after 0.5 sec rotation
of the drum motor (DM), the drum motor will stop in about 20 sec.
(Note 2) Racing is started after 2 min 31 sec.
(And min. 80 secor until the temperature control level is reached or H4 trouble
is detected.)
Heater lamp ON
(The fusing heat increases.)
(Note 2)
Main motor rotation
Longest: 8 min
Shortest: 80 sec
12 – 2
Mirror base initial setting
Lens initial setting
(Note 1)
Drum motor rotation
Longest: 2 min
Shortest: 20 sec
Duplex copy tray initial setting