Initial Flowchart - Canon QY8-1360-000 Service Manual

Part 4: Technical Reference

1.2 Initial Flowchart

The following flowchart shows the steps in the initialization sequence that takes place
when the power is turned on and before the printer enters the online state.
Start
Connect power cable of
AC adaptor to wall outlet.
(Hard power ON)
ROM check
RAM check
EEPROM check
Turn power ON.
(Soft power ON)
OK?
Yes
Paper check
(Paper-end sensor)
Is paper-out?
Yes
Purge unit decapping
OK?
Yes
Detection fo carriage
in home position
OK?
Yes
Sheet feeder initialization
OK?
Yes
A
No
EEPROM error
ROM error
RAM error
No
Paper-out/paper jam error
No
Purge error
No
Home position error
Print position
correction error
No
Sheet feeder error
Figure 4-2 Flowchart of Initialization Sequence
4-2
A
Paper output operation
No
OK?
Yes
Paper-out/paper-jam error
Waste ink check
No
OK?
Yes
Purge unit initialization
No
OK?
Yes
BJ cartridge check
Printer temperature check
No
OK?
Yes
Auto cleaning operation
Ink-out check
No
Is there any ink?
Yes
Waste ink check
(Displayed during paper
feed operation after the
printer has been in
standby mode)
No
OK?
Yes
END
BJC-7100
Waste ink-full error
Purge error
BJ cartridge error
Printer temperature error
Ink-out error
Waste ink alarm
Waste ink-full error