Controlling The Cassette Heater - Canon iR5000i Service Manual

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CHAPTER 5 PICK-UP/FEEDING SYSTEM

7. Controlling the Cassette Heater

The system used to control the cassette heater is constructed as follow:

Power supply

Environment switch

The following signal has the function indicated:

[1] Cassette Heater Drive Control Signal:

When '1', supplies the AC driver PCB with AC power.

The cassette heater switch (SW4) serves to supply power to the heater

through the AC line or to deprive it of power.

If the environment switch (SW3) is off, the heater will not be supplied with

power through the AC line even if the cassette heater switch (SW4) remains

DC controller

AC driver PCB

2000 2000 2000 2000

heater switch

Cassette heater

CANON iR5000i/iR6000i REV.0 JUNE 2001

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