Canon 2163B002 service manual Operation Sequence at Power-off, Power-off sequence

Chapter 2

Power Button ON

Device/resource

initializarion

Engine status check

Printhead/

ink tank check

Media feed system

initialization

Recovery system

initialization

Carriage position

initialization

Remaining ink level detection/

Waste ink level detection

Power-on

automatic recovery operation

Capping

Waiting for print operation

Initialization of software Initialization of various devices

Engine startup status check Previous power-off status check,etc.

Printhead installation status check Ink tank installation status check EEPROM check

Cassette pick-up unit initialization Roll feed unit initialization

Roll feed unit initialization Sensor check

Recovery system return to origin Sensor check

Carriage motor return to origin

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2.2.2 Operation Sequence at Power-off

Turning off the power switch cuts off the drive voltage supply, launching a firmware power-off sequence as shown below.

If the power cord is disconnected from the wall outlet or the upper cover or any other cover is opend, the printer cancels the ongoing operation and shuts down immediately. Since printhead capping may or may not have been carried out properly, reconnect the power cord to the wall out and turn on the power switch. Making sure that the printer has entered online mode, turn off the power switch.

1. Power-off sequence

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