Epson ActionScanner II manuals

Epson ActionScanner II Service Manual (98 pages)

Brand: Epson | Category: Bar code readers | Size: 2.11 MB |

English

Table of contents

SERVICE MANUAL

1

PRECAUTIONS

4

REVISION SHEET

6

TABLE OF CONTENTS

7

Chapter 1 Product Description

8

1.1 FEATURES

10

Table 1-1. Optional Units

11

1.2 SPECIFICATIONS

12

216 mm (8.64 inches)

13

(11.88 inches)

13

1.3 INTERFACE SPECIFICATIONS

14

1.3.2 SCSI

16

1.3.2.3 SCSI Status

17

1.3.2.2 SCSI Commands

17

1.3.2.4 SCSI Messages

18

1.3.2.5 SCSI Pin Assignments

18

1.4 BUTTONS AND INDICATORS

19

1.5 SELF-TEST

19

1.6 ERRORS

20

Scanner Data Request

22

Byte Sequence Mode Reading

24

1.7.3 Data Block Formats

25

Figure 1-13. Line Data Format

25

1.7.4 Format of Status Byte

26

Figure 1-15. Status Byte

26

Table 1-7. Color Attributes

27

1.8 SCANNER FUNCTIONS

28

1.8.2 Output Resolution

29

1.8.3 Zoom

29

Figure 1-16. Zoom

29

1.8.4 Reading Area

30

1.8.5 Color Mode

30

Figure 1-17. Reading Area

30

1.8.6 Digital Halftoning

31

1.8.7 Color Correction

32

1.8.8 Brightness

32

1.8.9 Sharpness

32

Figure 1-18. Brightness

32

1.8.10 Gamma Correction

33

1.8.11 Scanning Mode

33

Figure 1-19. Gamma Correction

33

B034 PSB/PSE Board

34

Carriage Assembly

34

(Scanner Head)

34

B034 MAIN/MAIN-B

34

Figure 1-21. B034 MAIN Board

35

1.9.5 Upper Case

37

Figure 1-26. Upper Case

37

Table of Contents

38

List of Figures

38

List of Tables

38

2.1 ENGINE OPERATIONS

39

Photosensitive Section

40

Transmission Section

41

2.1.2 Carriage Operations

42

2.2 POWER SUPPLY OPERATIONS

43

2.3 CONTROL CIRCUITS

45

2.3.2 Reset Circuit

48

Rev. A 2-13

51

3.1.1 Precautions

53

3.1.2 Tools

53

Table 3-1. Tools

53

3.1.3 Small Parts

54

3.2 DISASSEMBLY AND ASSEMBLY

56

CPS-tite (PS) (M3x6)

57

Timing Belt

57

CBP-tite (M3x12)

58

ASSEMBLY POINT

59

3.2.6 Removing the CR Motor

60

HP Sensor

61

Inverter Board

62

CR Cover

62

Lamp Holder

62

Chapter 4 Adjustments

63

Chapter 5 Troubleshooting

64

5.1 OVERVIEW

65

5.2 SELF-DIAGNOSTIC FUNCTION

65

5.3 TROUBLESHOOTING

66

Table 5-9. Lamps Do Not Light

70

Table 5-11. Image Unclear

71

Chapter 6 Maintenance

75

6.1 MAINTENANCE

76

6.2 LUBRICATION

76

6-2 Rev. A

77

Rev. A 6-3

78

APPENDIX

79

A.1 CONNECTOR PIN ASSIGNMENTS

80

A.2 CIRCUIT DIAGRAMS

84

A-6 Rev. A

85

Rev. A A-7

86

A-8 Rev. A

87

Rev. A A-9

88

A-10 Rev. A

89

Rev. A A-11

90

A-12 Rev. A

91

A.4 EXPLODED DIAGRAMS

92

Figure A-14. Exploded Diagram

93

As of September 1994

96

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