Canon Color imageCLASS 8180c Manuel de service télécharger pdf (Page 30)

Chapter 1

1-6

DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.

1.3.5 CDRH Ordinances

0011-0549

The Center for Devices and Radiological Health (CDRH) of the US Food and Drum Administration put into force ordinances related to laser products on August

2, 1976. These ordinances apply to laser products manufactured on and after August 1, 1976, and sale of laser products is prohibited within the US unless they bear

a certificate of compliance. The following is the label that indicates compliance with the CDRH ordinances, and it must be found on all laser products sold in the US.

F-1-7

The description may vary from model to model.

1.4 Functional Configuration

1.4.1 Functional Construction

0007-4972

The machine may be divided into the following 6 functional blocks: system control block, reader control block, printer control block, laser/scanner block, image

formation block, pickup/feeder block.

The following is a diagram showing these blocks:

F-1-8

1.5 Basic Sequense

1.5.1 Basic Operation Sequence

0008-1692

The operation sequences for the printer are controlled by the CPU in the DCNTboard in the engine control system. The table below indicates the purposes and

engine operations of each period from when the power is turned on until a print operation is completed and each motor stops rotating. See the appendix for the

timing chart.

T-1-1

Period Purpose Remarks

WAIT

(Wait)

From the power switch is

turned on until ITB cleaning

is completed.

To clear a potential on the

drum surface and clean the

ITB.

In this period, the printer executes

residual paper detection, toner level

detection, image density calibration

control, etc.

STBY

(Standby)

From the end of the WAIT

or LSTR period until a print

command is input from the

interface controller or the

power switch is turned off.

To keep the printer ready to

print.

INTR

(Initial

rotation)

After the input of a print

command from the interface

controller until the ITB

HOME POSITION

DETECTION (HP1) signal

for the first color is detected.

To stabilize sensitivity of the

photosensitive drum in

preparation for printing.

System control

system

Laser exposure system

Print control

system

Pickup / feed system

fixing system

Image formation system

Eeposure control system

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Canon Color imageCLASS 8180c Manuel de service Page 30

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