Service manual

SERVICE MANUAL

FIGURES

Figure Title Page

Fig. 1.1 Ink Jet Printer Assembly....................................................................................... 1-1

Fig. 1.2 General View of Printing Mechanism .................................................................... 1-3

Fig. 1.3A Paper Feed Mechanism........................................................................................ 1-4

Fig. 1.3B Paper Feed Mechanism........................................................................................ 1-5

Fig. 1.4 Paper Eject System.............................................................................................. 1-5

Fig. 1.5 Paper Setting System........................................................................................... 1-6

Fig. 1.6 Printer Flat Cable to Main PCB............................................................................. 1-7

Fig. 1.7 Printer Flat Cable to Cartridge Alignment.............................................................. 1-8

Fig. 1.8 Ink Jet Cartridge to Flat Cable Alignment.............................................................. 1-9

Fig. 1.9 Carriage Motion Control...................................................................................... 1-10

Fig. 1.10 Print Maintenance Operation - Spitting................................................................ 1-12

Fig. 1.11 Print Maintenance Operation - Wiping................................................................. 1-13

Fig. 1.12 Print Maintenance Operation - Capping .............................................................. 1-14

Fig. 1.13 Carriage Home Position Sensor.......................................................................... 1-15

Fig. 1.14 PE Sensor Mechanism ....................................................................................... 1-16

Fig. 1.15 Keyboard Assembly............................................................................................ 1-18

Fig. 1.16 Key Top/Key Stem Assembly ............................................................................. 1-19

Fig. 1.17 LCD Unit Installation in the Upper Cover............................................................. 1-21

Fig. 1.18 LCD of DP-525CJ/LW-800ic ............................................................................... 1-22

Fig. 1.19 LCD of DP-530CJ/LW-810ic and LW-810icBL .................................................... 1-23

Fig. 1.20 LCD of DP-540CJ, DP-550CJ/LW-840ic ............................................................. 1-24

Fig. 2.1 Major Electronic Component Parts........................................................................ 2-2

Fig. 2.2 Power Supply Circuit ............................................................................................ 2-4

Fig. 2.3 Timing Chart of +24V Generation Circuit............................................................... 2-5

Fig. 2.4 Timing Chart of +5V Generation Circuit ................................................................ 2-5

Fig. 2.5 Reset Circuit......................................................................................................... 2-6

Fig. 2.6 Buzzer Drive Circuit.............................................................................................. 2-8

Fig. 2.7 Country & Model Specification Change-over Circuit .............................................. 2-9

Fig. 2.8 RS-232C I/F Circuit ............................................................................................ 2-10

Fig. 2.9 Ink Jet Head Drive Circuit ................................................................................... 2-11