Canon iPF8400S Series, Service Manual

Page: 71 / 312

Chapter 2
2-5
2.2 Firmware
2.2.1 Operation Sequence at Power-on
0012-6310
The sequence of printer operations, from power-on to transition to online mode, is flowcharted below. The printer takes less than 1 minute to initialize itself(*).
* Excluding the times spent supplying inks and cleaning the printhead after leaving the printer for extended periods of time.
F-2-5
Power B u tton ON
Device/re s o u rce
initi a liz a tion
Printhe a d/
ink t a nk check
Medi a feed s y s tem
initi a liz a tion
Recovery s y s tem
initi a liz a tion
C a rri a ge po s ition
initi a liz a tion
Rem a ining ink level detection/
W as te ink level detection
Power-on
au tom a tic recovery oper a tion
C a pping
W a iting for print oper a tion
- Initi a liz a tion of s oftw a re
- Initi a liz a tion of v a rio us device s
Engine s t a t us check
- Engine s t a rt u p s t a t us check
- Previo us power-off s t a t us check,etc.
- Printhe a d in s t a ll a tion s t a t us check
- Ink t a nk in s t a ll a tion s t a t us check
- EEPROM check
- C ass ette pick- u p u nit initi a liz a tion
- Roll feed u nit initi a liz a tion
- Roll feed u nit initi a liz a tion
- S en s or check
- Recovery s y s tem ret u rn to origin
- S en s or check
- C a rri a ge motor ret u rn to origin