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Epson Stylus 200 Table 2-1. Carriage Motor Drive Sequences, Figure 2-2. Carriage Motor Drive Circuit Block Diagram

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2.1.1.1 Carriage Motor Driver Circuit

Carriage motor driver IC UDN2917EB (IC8) outputs a constant current to drive the carriage motor.

CPU M3772152BFP (IC2) determines the motor phase and speed, and then sends a signal to the

UDN2917EB carriage motor driver IC (IC8) via a 4-bit signal transmission line. The carriage motor is

controlled by a 2W1-2 phase drive method. The figure below shows the carriage motor driver circuit

block.

Motor driverIC UDN2917EB controls the motor stepping direction and drive current with a

combination of six signalssupplied from the CPU. PH1 and PH2 signals control the current flow

direction to determine the motorstepping position; and the I10, I11 and I20, I21 signals determine the

drivecurr ent supplied to eachmotor drive coil. Table 2-1 lists the combinations of these signals used

for the 2W1-2phase drive control.

Table 2-1. Carriage Motor Drive Sequences

Sequence Phase A Phase B +

^RTP03 RTP10 RTP11 Current

Duty

RTP02 RTP12 RTP13 Current

Duty

^PH1 I11 I10 PH2 I21 I22 ^

0000–10 110

10 0 0 –1 0 1 0 –1/3

20 0 1 –2/3 0 0 1 –2/3

30 1 0 –1/3 0 0 0 –1

411100 00–1

51 1 0 +1/3 0 0 0 –1

61 0 1 +2/3 0 0 1 –2/3

71 0 0 +1 0 1 0 –1/3

8100+10 110

91 0 0 +1 1 1 0 +1/3

10 1 0 1 +2/3 1 0 1 +2/3

11 1 1 0 +1/3 1 0 0 +1

12 01101 00+1

13 0 1 0 –1/3 1 0 0 +1

14 0 0 1 –2/3 1 0 1 +2/3

15 0 0 0 –1 1 1 0 +1/3

IC2

M37721S2BFP

RTP10

RTP11

RTP12

RTP13

RTP03

RTP02

P105

P106

P107

IC8

UDN2917EB

4

3

2

1

5

6

19

18

17

I10

I11

I20

I21

PH1

PH2

VREF1

VREF2

2

1

23

24

43

26

44

25

A

-A

B

-B

6

3

18

21

CRA

CR-A

CRB

CR-B

Drive current level

Stepping direction

Trip current level

Figure 2-2. Carriage Motor Drive Circuit Block Diagram

Operating Principles EPSON Stylus COLOR 200 / EPSON Stylus 200

2-2 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