Configuration Function; Basic Sequence; Basic Operational Sequence - Canon mf6600 Series Service Manual

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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
•
Controller System
Laser Exposure System
•
Document exposure/delivery system
ADF unit
Contact Sensor
Delivery unit
Laser Exposure System
Laser scanner
Fixing System
Fixing unit
Main
Controller
Casette
PC
2 Technical Overview > Basic Configuration > Basic Sequence > Basic Operational Sequence
•
Image Formation System
•
Fixing System
• Pickup / Feed System
Cartridge
Image Formation System
Photosensitive drum
MP Tray
Pickup / Feed System
Transfer roller
Controller system
Engine controller
Laser beam
Paper flow
Signal flow
F-2-1 F-2-1

Basic Sequence

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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
Interval from power-ON
WAIT Activate the printer to be ready for printing. During WAIT
time, the following operations are done: pressure is applied
(Wait) or reactivation from sleep
to the pressure roller of the Fixing Unit; check cartridges
mode upon shutting the
door(s) to entering the print- and units being in place; move the developing unit to the
home position; and, clean the ITB. When needed, color
ready status
displacement is corrected and the image is stabilized.
STBY Interval from the wait
Maintain the print-ready status. The printer enters the sleep
(STBY)
time or the last rotation to mode upon receiving a "sleep" command from the main
issuance of a print command controller during the stand-by status. The printer executes
from the main controller or color displacement correction or image stabilization upon
power-OFF.
receiving corresponding commands from the main controller.
To make the printer ready for print jobs, activate high-
INTR Interval from issuance of
voltage bias PCBs, the Laser Scanner Unit and the Fixing
(IINTR) a print command from the
Unit.
main controller during the
stand-by status to warming
up the Fixing Unit to the
target temperature.
Based on the video signals input from the main controller,
PRINT Interval from the initial
(Print) rotation to completion of last form the static latent image on the photosensitive drum to
page fixation. 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 Interval from print job The last page of the print job is completely delivered. In
(Last this status, the Laser Scanner Unit and high-voltage bias
completion to Motor
rotation) deactivation. 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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Operation
T-2-1 T-2-1
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