Canon imagePROGRAF iPF8400 Service Manual

Contents
1.7.3.6 Disposing of the Lithium Battery...................................................................................................1- 48
Chapter 2 TECHNICAL REFERENCE
2.1 Basic Operation Outline................................................................................................................................. 2- 1
2.1.1 Printer Diagram........................................................................................................................................ 2- 1
2.1.2 Print Signal Sequence ............................................................................................................................ 2- 2
2.1.3 Print Driving .............................................................................................................................................. 2- 3
2.2 Firmware .......................................................................................................................................................... 2- 5
2.2.1 Operation Sequence at Power-on......................................................................................................... 2- 5
2.2.2 Operation Sequence at Power-off......................................................................................................... 2- 6
2.2.3 Print Position Adjustment Function....................................................................................................... 2- 7
2.2.4 Head Management.................................................................................................................................. 2- 7
2.2.5 Printhead Overheating Protection Control........................................................................................... 2- 7
2.2.6 Pause between Pages............................................................................................................................ 2- 7
2.2.7 White Raster Skip.................................................................................................................................... 2- 7
2.2.8 Sleep Mode............................................................................................................................................... 2- 7
2.2.9 Hard Disk Drive........................................................................................................................................ 2- 8
2.3 Printer Mechanical System ........................................................................................................................... 2- 9
2.3.1 Outline........................................................................................................................................................ 2- 9
2.3.1.1 Outline ................................................................................................................................................ 2- 9
2.3.2 Ink Passage............................................................................................................................................. 2- 10
2.3.2.1 Ink Passage.....................................................................................................................................2- 10
2.3.2.2 Ink Tank Unit ................................................................................................................................... 2- 11
2.3.2.3 Carriage Unit ................................................................................................................................... 2- 13
2.3.2.4 Printhead.......................................................................................................................................... 2- 16
2.3.2.5 Purge Unit........................................................................................................................................ 2- 17
2.3.2.6 Maintenance Cartridge................................................................................................................... 2- 22
2.3.2.7 Air Flow.............................................................................................................................................2- 23
2.3.3 Paper Path............................................................................................................................................... 2- 24
2.3.3.1 Outline .............................................................................................................................................. 2- 24
2.3.3.2 Paper Path....................................................................................................................................... 2- 25
2.3.3.3 Cutter Unit........................................................................................................................................ 2- 26
2.4 Printer Electrical System .............................................................................................................................2- 27
2.4.1 Outline...................................................................................................................................................... 2- 27
2.4.1.1 Overview ..........................................................................................................................................2- 27
2.4.2 Main Controller ....................................................................................................................................... 2- 29
2.4.2.1 Main controller PCB components................................................................................................. 2- 29
2.4.3 Carriage Relay PCB............................................................................................................................... 2- 31
2.4.3.1 Carriage relay PCB components.................................................................................................. 2- 31
2.4.4 Head Relay PCB .................................................................................................................................... 2- 31
2.4.4.1 Head relay PCB components ....................................................................................................... 2- 31
2.4.5 Motor Driver............................................................................................................................................. 2- 32
2.4.5.1 Media take-up PCB components ................................................................................................. 2- 32
2.4.6 Maintenance Cartridge Relay PCB ..................................................................................................... 2- 32
2.4.6.1 Maintenance cartridge relay PCB components .........................................................................2- 32
2.4.7 Power Supply.......................................................................................................................................... 2- 32
2.4.7.1 Power supply block diagram......................................................................................................... 2- 32
2.5 Detection Functions with Sensors.............................................................................................................. 2- 33

Canon imagePROGRAF iPF8400 Specifications

General

Internal storage capacity	250 GB