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C. Power On Sequences
Sequences of the printer from power ON until it enters the standby mode are as shown below.
Figure 2-1-2
2 - 3
CHAPTER 2
NO
NO
During this period, checks if there is
residual paper in the printer. If automatic
paper delivery is required as a result of
the check, residual paper is delivered
automatically.
Power ON
CPU initialization
Duplexing unit
initialization
Duplexing unit
connection
Fixing heater ON
Main motor, scanner motor, pick-up roller, registration
roller, primary AC, transfer negative bias ON
Development AC bias ON (Checks if
the cartridge is installed and if there is
toner in it)
Main motor, scanner motor, pick-up roller, registration
roller, primary AC, transfer negative bias ON
Main motor, scanner motor, pick-up roller, registration
roller, primary AC, transfer negative bias ON
Standby
NO
/PPRDY signal output
Has fixing temperature
reached 170 C?
Has fixing temperature
reached 145˚ C?
˚