Chapter 2
Operating Principles
2.1 OVERVIEW ...............................................................................................................1
2.1.1 Printer Mechanism .................................................................................................................... 1
2.1.1.1 Printing Mechanism ...................................................................................................... 2
2.1.1.1.1 Printing Process ................................................................................................ 3
2.1.1.1.2 Printing Method ................................................................................................. 4
2.1.1.2 Carriage Mechanism .................................................................................................... 7
2.1.1.2.1 Paper Gap Adjust Mechanism ........................................................................ 10
2.1.1.3 Paper Feed Mechanism and Pump Mechanism .........................................................11
2.1.1.4 Ink System.................................................................................................................. 14
2.1.1.4.1 Pump Mechanism ........................................................................................... 15
2.1.1.4.2 Cap Mechanism .............................................................................................. 17
2.2 Electrical Circuit Operating Principles ................................................................18
2.2.1 C206 PSB/PSE Power Supply Board ..................................................................................... 19
2.2.2 C206 MAIN Board..................................................................................................................... 21
2.2.2.1 Reset Circuits ............................................................................................................. 23
2.2.2.2 Sensor Circuits ........................................................................................................... 24
2.2.2.3 EEPROM Control Circuits .......................................................................................... 25
2.2.2.4 Timer Circuit ............................................................................................................... 26
2.2.2.5 DRAM Control ............................................................................................................ 26
2.2.2.6 Print Head Control Circuit........................................................................................... 27
2.2.2.7 PF (Pump) Motor Drive Circuit ................................................................................... 30
2.2.2.8 CR Motor Drive Circuit ............................................................................................... 31
Summary of Contents for Stylus Color 400
Page 5: ...REVISION SHEET Revision Issued Data Contents Rev A February18 1997 First issue ...
Page 126: ...Chapter 6 Maintenance Rev A 6 5 No 1 No 2 10mm 2mm 2mm No 3 No 11 GEAR 34 ...
Page 138: ...EPSON Stylus Color400 Service Manual Rev A A 9 Figure A 3 C206 PSB Board Component Layout ...
Page 139: ...Appendix Rev A A 10 Figure A 4 C206 PSE Board Component Layout ...
Page 140: ...EPSON Stylus Color400 Service Manual Rev A A 11 Figure A 5 C206 PNL Component Layout ...
Page 141: ...Appendix Rev A A 12 A 5 Exploded Diagrams Figure A 6 Stylus Color 400 Exploded Diagram 1 ...
Page 143: ...Appendix Rev A A 14 Figure A 8 Stylus Color 400 Exploded Diagram 3 ...
Page 145: ...EPSON SEIKO EPSON CORPORATION ...