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Epson Stylus 200 5.3 Unit Repair - C199 Main Control Board

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5.3 Unit Repair - C199 Main Control Board

This section describes the problems related to the main controller board (C199 Main). The table below

provides various symptoms, likely causes, and checkpoints. Thecheckpoints refer to waveforms, resistance,

andother values to beche ckedto evaluate theoperation of each component.

Phenomenon Condition Cause Checkpoints Solution

It does not

operate at all. CPU does

not operate.

Reset circuit

does not

operate.

Check the wave-form

at either pin 1 and 4(GND).

Replace IC13.

Table 5-4. Repair of C199 MAIN

CRU1 or IC2

is defective. Does wave-form of CRU1 is correct?

(at either pin 37 and 38 of CPU)

Correct : replace IC2.

Incorrect : replace

CRU1.

CRU2 or IC1

is defective. Does wave-form of CRU2 is correct?

(Refer to above wave-form.)

Correct : replace IC1.

Incorrect : replace

CRU2.

Gate array

does not

operate.

Check the wave-form at the pin

(52,54,56,57,58).

Replace IC1.

OE signal

does not

output.

Gate array

does not

operate.

Check the wave-form at the pin 3 of QM3.

Does PWM wave-form is correct?

(Check the pin at 140.)

Replace IC1.

Self-test

printing

does not

abnormal.

PWM signal

does not

output.

Common

driver circuit

does not

operate.

Tr does

not operate.

Replace a defective

element.(QM1,2,3,4,

5,6,7,8 or Q1,7,8.)

Troubleshooting Epson Stylus Color 200 / EpsonStylus 200

5-4 Rev. A

Contents

Main Page PRECAUTIONS DANGER WARNING DANGER WARNING PREFACE Page Page Chapter 1 Product Description List of Tables 1.1 FEATURES Figure 1-1.Exterior Viewing of EPSON StylusColor 200 Epson Stylus Color200 /EpsonStylus 200 Product Description 1.2 SPECIFICATIONS 1.2.1 Printing Specifications Figure1-2. Nozzle Configuration #60 #61 Table 1-2. Character Tables 1.2.2 Paper Handling Specifications 1.2.3 Paper Specifications Table 1-3. Paper Specifications Figure 1-3. Printable Area Product Description EpsonStylus Color 200 /Epson Stylus 200 Table 1-4. Adjust Lever Settings Table 1-5. Paper Select Lever Settings Figure 1-4. Paper Select Error Epson Stylus Color200 /EpsonStylus 200 Product Description 1.2.4 Ink Cartridge Specifications Table 1-6. Black I/C Specifications Table 1-7. Color I/C Specifications 1.2.5 Electrical Specifications Table 1-8. Rated Electrical Ranges 1.2.6 Environmental Conditions Table 1-9. Acceptable Environmental Conditions Figure 1-5. Temperature/Humidity of Range Page 1.3 INTERFACE SPECIFICATIONS 1.3.1 ParallelInterface Specifications (Forward Channel) Figure 1-6. Data Transmission Timing Epson Stylus Color 200 /Epson Stylus 200 Product Description Table 1-10. Signal and Connector Pin Assignments forParallel Interface * TheI/O columnindicates the direction of the signal as viewed from the printer. 1.3.2 Parallel Interface (Reverse channel) Table1-11. Pin Assignment for Reverse channel Power Inkout Load / Eject Paperout Cleaning Light Button Table 1-13. Built-in Functions on the Panel Table 1-14. Button Operations in Default Setting Mode Table 1-15. Error Indications 1.4.3 Default Settings 1.4.3.1 DefaultSetting Items Table 1-16. Default Setting Items Table 1-17. Default Setting Items (Continued) 1.4.3.2 Changing the Default Settings Table 1-18 Language Selection 1.4.4 Error Conditions 1.4.5 Printer Initialization 1.4.5.1 Power-OnInitialization 1.4.5.2 SoftwareInitialization 1.4.5.3 OperatorInitialization 1.5 MAIN COMPONENTS 1.5.1 Main Control Board (C199 MAIN Board) Figure 1-8. C199 Main Control Board Component Layout Epson Stylus Color 200 /Epson Stylus 200 Product Description 1.5..2 Power Supply Board (C160 PSB/PSE Board) 1.5.3 Interface Board (C160 I/F Board) Figure 1-9. C160 PSB/PSE Board Component Figure1-10. C160 I/F Board Component Layout Product Description Epson Stylus Color200 /Epson Stylus 200 Page Chapter 2 Operating Principles 2.1 OVERVIEW Rev. A 2-1 Figure 2-1. C199 MAIN BoardBlock Diagram 2.1.1 C199MAIN BOARD Memory control lines Table 2-1. Carriage Motor Drive Sequences Figure 2-2. Carriage Motor Drive Circuit Block Diagram Operating Principles EPSON Stylus COLOR 200 / EPSON Stylus 200 Table 2-2. Connection between References and Output Signals EPSON Stylus COLOR 200 / EPSON Stylus 200 Operating Principles Chapter 3 Disassembly and Assembly Page 3.1 OVERVIEW 3.1.1 Precautions for Disassembling the Printer 3.2 DISASSEMBLY AND ASSEMBLY WARNING WARNING 3.2.1 Upper Case Removal 3-2 Rev. A Figure 3-1. Upper Case Removal Disassembly andAssembly EPSON Stylus Color 200/ EPSON Stylus 200 3.2.2 C199 MAIN Control Board and ASF Sensor Removal Figure 3-2. C199 Main Board Removal Figure 3-3. ASF Sensor Removal EPSON Stylus Color 200/ EPSON Stylus 200 Disassembly and Assembly 3.2.3 C160 I/F Board Removal Figure 3-4. Board Frame and Metal StayRemoval Figure 3-5. C160 I/F Board Removal Page 3.2.5 M-4C11 Printer Mechanism Removal Figure 3-7. Printer Mechanism Removal 3.2.6 Printer Mechanism Disassembly 3.2.6.1 CarriageUnit Removal Figure 3-8. PG Lever and Tension Coil Removal EPSON Stylus Color 200 /EPSON Stylus 200 Disassembly and Assembly Page 3.2.6.2 ASF Unit Removal 3.2.6.3 PE Sensor Removal Figure 3-11. ASF Unit Removal Figure 3-12. PE Sensor Remopval Page 3.2.6.6 Paper Feed Roller Unit Removal 3.2.6.7 Carriage Motor Removal Figure 3-15. Paper Feed Roller Unit Removal Figure 3-16. Carriage Motor Removal 3.2.6.8 Head Cleaner Replacement Figure 3-17. Head Cleaner Replacement 3.2.6.9 Cap Unit Removal Notes: Figure 3-18. Pump Unit Removal Figure 3-19. Pump Unit Releasing 3.2.6.10 Paper Feed Motor Removal Figure 3-20. Pin Position Figure 3-21. Paper Feed Motor Removal Chapter 4 Adjustment 4.1 OVERVIEW Table 4-1. Required Adjustments EPSON Stylus COLOR 200 / EPSON Stylus 200 Adjustments 4.1.1 Bi-D (Bidirectional Printing) Alignment Adjustment Bidirectional Adjustment is Necessary Figure 4-1. Bi-D Alignment Adjustments EPSON Stylus COLOR 200 /EPS ON Stylus200 4.1.2 Head Angle Adjustment Head Angle Adjustment is Required Figure 4-2. Angle Lever Operation Adjustment Procedure 4.1.3 Zig-Zag Adjustment 1.18 mm 1.18 mm Table 4-2. Gap and Adjustment Direction Figure 4-4. Gap Confirmation Method Figure 4-3. PG Lever Operation Front Frame Carriage Flag 4.1.5 EEPROM Reset Procedure Table 4-3. EEPROM Operation 4.1.5.1 Writing Data to the EEPROM EPSON Stylus COLOR 200/ EPSON Stylus 200 Adjustments 4.1.5.2 EEPROM Initialization for Main Board Replacement 4.1.5.3 Ink System Initialization 4.1.5.4 Maintenance Error Clear Adjustments EPSON Stylus COLOR 200 / EPSON Stylus 200 Chapter 5 Troubleshooting LIST OF TABLES 5.1 OVERVIEW Figure 5-1. Trouble Shooting Construction Table 5-1. Motor Resistances Epson Stylus Color 200 /Epson Stylus 200 Troubleshooting Table 5-2. Sensor Status 5.2 Unit-Repair - C160 Power Supply Board Table5-3. Repair of the C160 PSB / PSE 5.3 Unit Repair - C199 Main Control Board 5-4 Rev. A Table 5-4. Repair of C199 MAIN Table 5-4. Repair of C199 MAIN(Cont.) Epson Stylus Color 200 /Epson Stylus 200 Troubleshooting Rev. A 5-5 5.4 Repair of PRINTER MECHANISM Table 5-5. Repair ofthe Printer Mechanism 5.5 Dot missing Trouble shooting Guide Table 5-6. Ink Cartridge exclusive for the service side WARNING 5.5.1 How to recover the dot-missing with the brand-new ink cartridge 5-8 Rev. A END A No 5.5.1.1 How to Perform the 360-DPI Printing 5.5.1.2 Standard of Is the printing normal? Figure 5-3. 360-DPI Check Pattern Figure 5-4. Standard of Dot-missing 5.5.1.3 Performing the CL operation for 2 ~ 3 times Figure 5-5. The Bent part on the Caprubber 5.5.1.4 Is the Head angle correct? 5.5.1.5 Initial charge operation 5.5.1.6 Replace to new ink cartridge Epson Stylus Color 200/Epson Stylus 200 Troubleshooting Chapter 6 Maintenance 6.1 PREVENTIVE MAINTENANCE 6.1.1 Printhead Cleaning WARNING Epson Stylus Color200 /EpsonStylus 200 Maintenance 6.1.2 WasteInk Drain Tank Replacement Maintenance Epson Stylus Color 200 / Epson Stylus 200 6.1.3 Lubrication and Adhesives Table 6-1. Recommended Lubricants Note: E = EPSON Exclusive product (not commercially available) Table 6-2. Lubrication Points Table 6-3. Adhesive Points Page Appendix LIST OF TABLES A.1 CONNECTOR SUMMARY Figure A-1. Interconnection of Major Components A.1.1 Connector Summary Table A-1. Connector Summary Table A-2. Connector Pin Assignments - CN1 Appendix Epson Stylus Color200/ Epson Stylus 200 Table A-3. Connector Pin Assignments CN2 Table A-4. Connector Pin Assignments CN3 Table A-5. Connector Pin Assignments CN4 Epson Stylus Color200/Epson Stylus 200 Appendix