Configuration Function; Basic Sequence; Basic Operational Sequence - Canon D1300 Series Service Manual

2
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

Basic Sequence

■ Basic Operational Sequence

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