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Firmware; Power On/off; Power Off - Canon W6400 Series Service Manual

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2.2 Firmware

2.2.1 Power On/Off

1. Power On
The initialization sequence when the power is turned on and before the printer enters the online state is shown in the flow chart below. The printer requires
about 2 minutes* to perform the initialization sequence.
* This does not include the time required for supplying ink and cleaning after storage for an extended period of time.

2.2.2 Power Off

Turning off the power cuts off the voltage to all drive systems being supplied power and starts the firmware power-off sequence.
This printer immediately suspends all operations in progress and stops whenever the power cable is unplugged, or the upper cover, right cover are opened.
In this case, the printer may stop without performing the regular capping operation for the printhead. If the power was turned off by unplugging the power
cable, plug the power cable into the outlet and turn the power on again so that the printer enters the online state, and then press the power button to turn
off the power.
1. Power Off sequence
initialization
Recovery system/carriage
Recovery
necessary
Recovery processing check
Cleaning
Non-discharge
detection
Waiting for print operation
Power button ON
- Feed roller initialization (including return
Device/resource
to origin)
initialization
- Software initialization
- Device initialization
- Engine operation status check
Engine status check
- Previous power off status check etc.
- Valve motor return to origin
Valve motor check
- Sensor check
Upper cover / Right
cover lock
- Print head installation status check
Printhead / Ink tank
- Ink tank installation status check
check
- EEPROM check
- Remaining ink check
- Maintenance cartridge installation status
Maintenance cartridge
check
check
* Tank full check is performed when
discharging ink such as during cleaning
- Recovery system/carriage motor return to origin
motor initialization
No printhead/ink tank
Recovery not
necessary
No media
Media detection
Media detected
Waiting for
media loading
Media load
Upper cover / Right
cover lock release
Error message
F-2-5
When error requiring
power off occurs
Printhead/ink
tank installed
Chapter 2
0008-6330
0008-6331
2-5

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