Canon iPF8000 - imagePROGRAF Color Inkjet Printer, Service Manual

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Contents
Contents
2.1 Basic Operation Outline.................................................................................................................................................2-1
2.1.1 Printer Diagram............................................................................................................................................................................ 2-1
2.1.2 Print Driving ................................................................................................................................................................................ 2-1
2.2 Firmware ........................................................................................................................................................................2-1
2.2.1 Operation Sequence at Power-on................................................................................................................................................. 2-1
2.2.2 Operation Sequence at Power-off ................................................................................................................................................ 2-2
2.2.3 Print Control................................................................................................................................................................................. 2-3
2.2.4 Print Position Adjustment Function............................................................................................................................................. 2-4
2.2.5 Head Management ....................................................................................................................................................................... 2-4
2.2.6 Printhead Overheating Protection Control................................................................................................................................... 2-4
2.2.7 Pause between Pages.................................................................................................................................................................... 2-4
2.2.8 White Raster Skip ........................................................................................................................................................................ 2-4
2.2.9 Sleep mode................................................................................................................................................................................... 2-4
2.3 Printer Mechanical System ............................................................................................................................................2-5
2.3.1 Outline.......................................................................................................................................................................................... 2-5
2.3.1.1 Outline.............................................................................................................................................................................................................2-5
2.3.2 Ink Passage................................................................................................................................................................................... 2-5
2.3.2.1 Ink Passage......................................................................................................................................................................................................2-5
2.3.2.1.1 Overview of Ink Passage.........................................................................................................................................................................2-5
2.3.2.2 Ink Tank Unit ..................................................................................................................................................................................................2-6
2.3.2.2.1 Structure of Ink Tank Unit ......................................................................................................................................................................2-6
2.3.2.3 Carriage Unit...................................................................................................................................................................................................2-8
2.3.2.3.1 Functions of Carriage unit.......................................................................................................................................................................2-8
2.3.2.3.2 Structure of Carriage Unit .......................................................................................................................................................................2-8
2.3.2.4 Printhead .......................................................................................................................................................................................................2-10
2.3.2.4.1 Structure of Printhead............................................................................................................................................................................2-10
2.3.2.5 Purge Unit .....................................................................................................................................................................................................2-11
2.3.2.5.1 Functions of Purge Unit ........................................................................................................................................................................2-11
2.3.2.5.2 Structure of Purge Unit .........................................................................................................................................................................2-12
2.3.2.6 Maintenance Cartridge ..................................................................................................................................................................................2-14
2.3.2.6.1 Maintenance cartridge ...........................................................................................................................................................................2-14
2.3.2.7 Air Flow ........................................................................................................................................................................................................2-14
2.3.2.7.1 Air flow .................................................................................................................................................................................................2-14
2.3.3 Paper Path .................................................................................................................................................................................. 2-14
2.3.3.1 Outline...........................................................................................................................................................................................................2-14
2.3.3.1.1 Overview of Paper Path.........................................................................................................................................................................2-14
2.3.3.2 Paper Path......................................................................................................................................................................................................2-16
2.3.3.2.1 Structure of Feed Roller Unit ................................................................................................................................................................2-16
2.3.3.3 Cutter Unit.....................................................................................................................................................................................................2-16
2.3.3.3.1 Structure of the cutter unit.....................................................................................................................................................................2-16
2.4 Printer Electrical System..............................................................................................................................................2-16
2.4.1 Outline........................................................................................................................................................................................ 2-16
2.4.1.1 Overview .......................................................................................................................................................................................................2-16
2.4.2 Main Controller.......................................................................................................................................................................... 2-17
2.4.2.1 Main controller components .........................................................................................................................................................................2-17
2.4.3 Carriage Relay PCB................................................................................................................................................................... 2-19
2.4.3.1 Carriage relay PCB components ...................................................................................................................................................................2-19
2.4.4 Head Relay PCB ........................................................................................................................................................................ 2-19
2.4.4.1 Head relay PCB components ........................................................................................................................................................................2-19
2.4.5 Motor Driver .............................................................................................................................................................................. 2-19
2.4.5.1 Media take-up unit components ....................................................................................................................................................................2-19
2.4.6 Maintenance Cartridge Relay PCB............................................................................................................................................ 2-20
2.4.6.1 Maintenance cartridge relay PCB components .............................................................................................................................................2-20