Service manual

Chapter 2
2-5
T-2-1
Period Definition Purpose Remarks
WAIT
(wait)
From when the power is turned
on until the main motor is turned
on and stopped.
The machine's mechanical and
electrical states are checked.
A check is made on the presence/absence of a
cartridge and for paper
remaining inside the machine. The machine
also shifts the WAIT state
when the left cover is closed while power is on,
or after returning from ESS mode.
STBY
(standby)
After the end of
WAIT, unit the Start key is
pressed.
The machine is ready for a print
command.
INTR
(initial
rotation)
After a press on the Start key,
until the leading edge is detected
by the paper leading edge sensor.
The machine starts up process
conditions and picks up paper for
printing.
The fixing heater is subjected to temperature
contro (start-up temperature control, paper
passage
temperature control); scanner rotation speed
adjustment and ATVC control are executed.
PRINT
(print)
After the registration sensor
detects the leading edge of paper,
until the delivery sensor detects
the trailing edge of paper.
The DC controller PCB generates
the BD0* signal, and the image
processor PCB sends VD0* signal
and VD0 signal, thereby forming a
latent image on the photosensitive
drum and turning it into a toner
image.
LSTR
(last
rotation)
From when printing
ends until the main
motor stops.
The drum surface is made
free of potential and the transfer
charging roller is cleaned.
After last rotation, the machine shifts to
standby to wait for a print command, in
response to which it immediately shifts to
initial rotation.
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