Chapter 3

Disassembly and Assembly

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 CR PW (Paper Width) Sensor Board Assembly Removal...................................................

3-7

3.2.4 Printhead Removal .................................................................................................................

3-8

3.2.5 HP Sensor Removal .............................................................................................................

3-10

3.2.6 Printer Mechanism Removal ...............................................................................................

3-11

3.2.7 PSB/PSE Board Assembly Removal...................................................................................

3-12

3.2.8 C203 MAIN Board Assembly Removal................................................................................

3-13

3.2.9 Main Waste Ink Drain Pad Removal....................................................................................

3-15

3.2.10 PL (Paper Length) Sensor Removal .................................................................................

3-16

3.2.11 Printer Mechanism Disassembly.......................................................................................

3-17

3.2.11.1 CR Motor Removal ................................................................................................

3-17

3.2.11.2 Pump Motor Assembly Removal ...........................................................................

3-18

3.2.11.3 PF Motor Assembly Removal ................................................................................

3-19

3.2.11.4 Front/Rear PE Sensor Removal ............................................................................

3-20

3.2.11.5 Release Sensor Removal......................................................................................

3-21

3.2.11.6 Paper Eject Frame Unit Removal ..........................................................................

3-22

3.2.11.7 Pump Unit Removal...............................................................................................

3-23

3.2.11.8 Edge Guide Unit Removal .....................................................................................

3-24

3.2.11.9 PQ (Paper Quantity) Sensor Board Assembly Removal .......................................

3-26

3.2.11.10 ASF PW (Paper Width) Sensor Removal............................................................

3-27

3.2.11.11 Ink Cartridge Holder Unit Removal ......................................................................

3-28

3.2.11.12 Ink Sensor Assembly Removal............................................................................

3-30

3.2.11.13 Ink Cartridge Sensor Assembly Removal............................................................

3-30

3.2.11.14 CR Unit Removal.................................................................................................

3-31

3.2.11.15 LD shaft Removal ................................................................................................

3-33

3.2.11.16 PF Roller Removal...............................................................................................

3-36

3.2.11.17 Rear Paper Guide Removal ................................................................................

3-37

3.2.11.18 Middle Frame Unit Removal ................................................................................

3-38