Canon imagePROGRAF iPF5000 Series Service Manual page 39

Contents
2.1 Basic Operation Outline ................................................................................................................................................ 2-1
2.1.1 Printer Diagram ............................................................................................................................................................................ 2-1
2.1.2 Print Driving................................................................................................................................................................................. 2-2
2.2 Firmware........................................................................................................................................................................ 2-2
2.2.1 Operation Sequence at Power-on ................................................................................................................................................. 2-2
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 ............................................................................................................................................ 2-6
2.3.1 Outline.......................................................................................................................................................................................... 2-6
2.3.1.1 Outline.............................................................................................................................................................................................................2-6
2.3.2 Ink Passage................................................................................................................................................................................... 2-6
2.3.2.1 Ink Passage......................................................................................................................................................................................................2-6
2.3.2.1.1 Overview of Ink Passage.........................................................................................................................................................................2-6
2.3.2.2 Ink Tank Unit ..................................................................................................................................................................................................2-7
2.3.2.2.1 Structure of Ink Tank Unit ......................................................................................................................................................................2-7
2.3.2.3 Carriage Unit...................................................................................................................................................................................................2-9
2.3.2.3.1 Functions of Carriage Unit......................................................................................................................................................................2-9
2.3.2.3.2 Structure of Carriage Unit..................................................................................................................................................................... 2-10
2.3.2.4 Printhead ....................................................................................................................................................................................................... 2-12
2.3.2.4.1 Structure of Printhead ........................................................................................................................................................................... 2-12
2.3.2.5 Purge Unit ..................................................................................................................................................................................................... 2-12
2.3.2.5.1 Functions of Purge Unit ........................................................................................................................................................................ 2-12
2.3.2.5.2 Structure of Purge Unit ......................................................................................................................................................................... 2-14
2.3.2.6 Maintenance Cartridge.................................................................................................................................................................................. 2-16
2.3.2.6.1 Maintenance cartridge........................................................................................................................................................................... 2-16
2.3.2.7 Air Flow ........................................................................................................................................................................................................ 2-16
2.3.2.7.1 Air flow ................................................................................................................................................................................................. 2-16
2.3.3 Paper Path................................................................................................................................................................................... 2-17
2.3.3.1 Outline........................................................................................................................................................................................................... 2-17
2.3.3.1.1 Overview of Paper Path ........................................................................................................................................................................ 2-17
2.3.3.2 Paper Path ..................................................................................................................................................................................................... 2-18
2.3.3.2.1 Structure of Cassette Pick-up Unit........................................................................................................................................................ 2-18
2.3.3.2.2 Cassette Pick-up Sequence.................................................................................................................................................................... 2-22
2.3.3.2.3 Structure of Roll Media Pick-up Unit ...................................................................................................................................................2-22
2.3.3.2.4 Roll Media Pick-up Sequence............................................................................................................................................................... 2-23
2.3.3.2.5 Structure of the Manual Feed Unit........................................................................................................................................................ 2-24
2.3.3.2.6 Manual Feed (from Front) Sequence .................................................................................................................................................... 2-26
2.3.3.2.7 Manual Feed (from Rear) Sequence ..................................................................................................................................................... 2-26
2.3.3.2.8 Structure of Feed Roller Unit................................................................................................................................................................ 2-27
2.3.3.2.9 Feed Roller Eccentricity Detection Function........................................................................................................................................ 2-28
2.3.3.2.10 Structure of Ejection Sour................................................................................................................................................................... 2-28
2.3.3.3 Cutter Unit .................................................................................................................................................................................................... 2-29
2.3.3.3.1 Structure of the cutter unit .................................................................................................................................................................... 2-29
Contents