Contents2.2 Firmware .................................................................................................................................................... 2- 52.2.1 Operation Sequence at Power-on............................................................................................................................2- 52.2.2 Operation Sequence at Power-off............................................................................................................................2- 62.2.3 Print Control .............................................................................................................................................................2- 72.2.4 Print Position Adjustment Function ........................................................................................................................2- 132.2.5 Head Management ................................................................................................................................................2- 132.2.6 Printhead Overheating Protection Control .............................................................................................................2- 132.2.7 Pause between Pages ...........................................................................................................................................2- 132.2.8 White Raster Skip ..................................................................................................................................................2- 132.2.9 Sleep Mode............................................................................................................................................................2- 132.3 Printer Mechanical System....................................................................................................................... 2- 142.3.1 Outline....................................................................................................................................................................2- 142.3.1.1 Outline.................................................................................................................................................................................... 2- 142.3.2 Ink Passage ...........................................................................................................................................................2- 152.3.2.1 Ink Passage ........................................................................................................................................................................... 2- 152.3.2.2 Ink Tank Unit.......................................................................................................................................................................... 2- 172.3.2.3 Carriage Unit.......................................................................................................................................................................... 2- 192.3.2.4 Printhead................................................................................................................................................................................ 2- 222.3.2.5 Purge Unit .............................................................................................................................................................................. 2- 232.3.2.6 Maintenance Cartridge........................................................................................................................................................... 2- 282.3.2.7 Air Flow .................................................................................................................................................................................. 2- 292.3.3 Paper Path .............................................................................................................................................................2- 302.3.3.1 Outline.................................................................................................................................................................................... 2- 302.3.3.2 Paper Path ............................................................................................................................................................................. 2- 312.3.3.3 Cutter Unit.............................................................................................................................................................................. 2- 442.4 Printer Electrical System .......................................................................................................................... 2- 452.4.1 Outline....................................................................................................................................................................2- 452.4.1.1 Overview ................................................................................................................................................................................ 2- 452.4.2 Main Controller.......................................................................................................................................................2- 472.4.2.1 Main controller components................................................................................................................................................... 2- 472.4.3 Carriage Relay PCB...............................................................................................................................................2- 482.4.3.1 Carriage PCB components .................................................................................................................................................... 2- 482.4.4 Motor Driver ...........................................................................................................................................................2- 492.4.4.1 Roll feed unit PCB components ............................................................................................................................................. 2- 492.4.5 Maintenance Cartridge Relay PCB ........................................................................................................................2- 492.4.5.1 Maintenance cartridge relay PCB components...................................................................................................................... 2- 492.4.6 Power Supply.........................................................................................................................................................2- 492.4.6.1 Power supply block diagram .................................................................................................................................................. 2- 492.5 Detection Functions with Sensors ............................................................................................................ 2- 502.5.1 Sensors for covers .................................................................................................................................................2- 502.5.2 Ink passage system ...............................................................................................................................................2- 512.5.3 Carriage system.....................................................................................................................................................2- 532.5.4 Paper path system .................................................................................................................................................2- 542.5.5 Others ....................................................................................................................................................................2- 56Chapter 3 INSTALLATION3.1 Installation .................................................................................................................................................. 3- 13.1.1 Making Pre-Checks..................................................................................................................................................3- 13.1.1.1 Making Pre-Checks.................................................................................................................................................................. 3- 13.1.2 Unpacking and Installation.......................................................................................................................................3- 13.1.2.1 Unpacking and Installation....................................................................................................................................................... 3- 13.1.2.2 Installing the Stand .................................................................................................................................................................. 3- 9Chapter 4 DISASSEMBLY/REASSEMBLY4.1 Service Parts .............................................................................................................................................. 4- 14.1.1 Service Parts............................................................................................................................................................4- 1