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Technical Overview > Basic Configuration > Basic Sequence > Basic Operational Sequence
Technical Overview > Basic Configuration > Basic Sequence > Basic Operational Sequence
Basic Configuration
Configuration Function
This device is roughly composed of the 6 functional blocks as shown in the figure below
Document Exposure/Delivery System
•
Image Formation System
•
Controller System
•
Fixing System
•
Laser Exposure System
•
Pickup / Feed System
•
Engine controller
Casette
Laser scanner
MP Tray
Cartridge
Transfer roller
Laser beam
Paper flow
Signal flow
Fixing unit
Delivery unit
ADF unit
Contact Sensor
Main
Controller
Laser Exposure System
PC
Image Formation System
Pickup / Feed System
Fixing System
Controller system
Document exposure/delivery system
Photosensitive drum
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Basic Sequence
Basic Operational Sequence
The CPU on the DC Controller PCB controls the operational sequence. The table below
shows the operation and the purposes in each status from start-up of the device and to last
rotation after print job completion.
Status
Operation
WAIT
(Wait)
Interval from power-ON
or reactivation from sleep
mode upon shutting the
door(s) to entering the print-
ready status
Activate the printer to be ready for printing. During WAIT
time, the following operations are done: pressure is applied
to the pressure roller of the Fixing Unit; check cartridges
and units being in place; move the developing unit to the
home position; and, clean the ITB. When needed, color
displacement is corrected and the image is stabilized.
STBY
(STBY)
Interval from the wait
time or the last rotation to
issuance of a print command
from the main controller or
power-OFF.
Maintain the print-ready status. The printer enters the sleep
mode upon receiving a “sleep” command from the main
controller during the stand-by status. The printer executes
color displacement correction or image stabilization upon
receiving corresponding commands from the main controller.
INTR
(IINTR)
Interval from issuance of
a print command from the
main controller during the
stand-by status to warming
up the Fixing Unit to the
target temperature.
To make the printer ready for print jobs, activate high-
voltage bias PCBs, the Laser Scanner Unit and the Fixing
Unit.
PRINT
(Print)
Interval from the initial
rotation to completion of last
page fixation.
Based on the video signals input from the main controller,
form the static latent image on the photosensitive drum to
transfer and fix the toner image on paper. When a certain
pages are printed after power-ON, the device undergoes
color displacement correction and/or image stabilization.
LSTR
(Last
rotation)
Interval from print job
completion to Motor
deactivation.
The last page of the print job is completely delivered. In
this status, the Laser Scanner Unit and high-voltage bias
PCBs are inactive. The printer starts the initial rotation upon
receiving a print command from the main controller during
this status.
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