Epson Stylus COLOR 1520 Service Manual page 71

3.1 Overview ............................................................................................................... 3-1
3.1.1 Precautions for Disassembling the Printer...................................................................... 3-1
3.1.2 Tools .................................................................................................................................. 3-2
3.2 Disassembly and Assembly ................................................................................ 3-3
3.2.1 Upper Housing Removal................................................................................................... 3-4
3.2.2 ROM Replacement............................................................................................................. 3-6
3.2.3 Print Head Removal .......................................................................................................... 3-7
3.2.3.1 Black Head Removal ............................................................................................ 3-7
3.2.3.2 Color Head Removal ............................................................................................ 3-8
3.2.4 Home Position (HP) Sensor Removal .............................................................................. 3-9
3.2.5 Cover Open Sensor Removal ..........................................................................................3-10
3.2.6 Printer Mechanism Unit Removal....................................................................................3-11
3.2.7 PSB/PSE Board Assembly Removal ...............................................................................3-12
3.2.8 C211 MAIN Board Assembly Removal.............................................................................3-13
3.2.9 Waste Ink Drain Pad Removal..........................................................................................3-15
3.2.9.1 Waste Ink Drain Pad Removal.............................................................................3-15
3.2.9.2 Left Ink Pad Removal ..........................................................................................3-15
3.2.10 Printer Mechanism Unit Disassembly ...........................................................................3-16
3.2.10.1 Carriage (CR) Motor Assembly Removal ...........................................................3-16
3.2.10.2 PF (Paper Feed) Motor Assembly Removal.......................................................3-18
3.2.10.3 DE (Disengage) Sensor Removal ......................................................................3-19
3.2.10.4 Front/Rear PE (Paper End) Sensor Removal.....................................................3-20
3.2.10.5 REL (Release) Sensor Removal ........................................................................3-21
3.2.10.6 Edge Guide Unit Removal .................................................................................3-22
3.2.10.7 Paper Eject Frame Removal..............................................................................3-23
3.2.10.8 Pump Unit Removal ..........................................................................................3-24
3.2.10.9 Carriage (CR) Unit Removal ..............................................................................3-25
3.2.10.10 Base Frame Assembly Removal......................................................................3-27
3.2.10.11 Paper Load Roller Unit Removal......................................................................3-28
3.2.10.12 Paper Feed (PF) Roller Removal.....................................................................3-31
3.2.10.13 Rear Paper Guide Removal.............................................................................3-32
3.2.10.14 Middle Frame Assembly Removal ...................................................................3-33
Disassembly and Assembly
Chapter 3