Epson Stylus Photo 750 Specifications Page 46
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- Table of contents
- TROUBLESHOOTING
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EPSON Stylus Photo 750 Revision A
Troubleshooting Unit Level Troubleshooting 41
3.2 Unit Level Troubleshooting
This section contains the flow charts which are used to isolate the faulty
unit by following the flow chart according to the problem caused during
replacing or repairing the unit. You are to identify the faulty unit based
on the primary symptom listed in the Table3-4. After this, refer to 3.4
Unit Repair and find and replace the defective parts.
Table 3-4. Symptoms and Corresponding Flow Chart
1. Printer does not operate.
Figure 3-2. Flowchart 1
Symptom Cause Flow Chart
Printer does not
operate.
• No LED goes ON.
• Printer mechanism does not
operate at all.
1
Error is detected.
• LED indicates error.
2
Abnormal printing
operation.
• Printing is not performed.
• Bad printing quality.
• Abnormal printing.
3
Paper Feeding is not
performed correctly.
• Abnormal paper feeding.
• Paper jam occurs.
• Page heading position is not
right.
4
Abnormal Control
Panel
No responds from the printer,
even after pressing switches.
5
Is A C
pow er voltage
n o rm a l?
YES
Is th e
fuse(F1) of
pow er supply
Is th e
output voltage
of pow er supply
norm al?
Exchange the m ain
board.
NO
Input norm al
pow er supply.
NO
Exchange the fuse.
D isconnect C N 10 in
the m ain board and
tu rn th e p o w e r o n
again.
YES
C heck output voltage
o f C N 2 in th e p o w e r
supply board.
Exchange the pow er
supply board
C heck the m otor and
h e a d . R e fe r to th e
repair item of the
p rin te r m e c h a n is m .
START
END
YES
NO
board
opened?
YES
Is th e
fuse opend
again?
NO
- 6(59,&(#0$18$/ 1
- PRECAUTIONS 3
- About This Manual 4
- Revision Status 5
- Product Description 6
- Operating Principles 6
- Troubleshooting 6
- Disassembly and Assembly 6
- Adjustment 6
- Maintenance 7
- Appendix 7
- PRODUCT DESCRIPTION 8
- 1.1 Overview 9
- 1.2 General Description 10
- 1.2.2 Paper Feeding 11
- 1.2.3 Paper Specification 11
- 1.2.4 Printable Area 12
- 1.2.5 Adjust Lever Settings 13
- G uranteed R ange 14
- 1.2.7 Ink Cartridge 15
- 1.2.8 Input Data Buffer 16
- 1.2.9 Electric Specification 16
- 1.2.10 Reliability 16
- 1.2.11 Safety Approvals 16
- 1.2.12 Acoustic noise 16
- 1.2.13 CE Marking 17
- 1.3 Parallel Interface 19
- /S T R B 22
- 1.3.3 Serial Interface 23
- 1.3.6 Interface selection 25
- 1.3.7 IEEE 1284.4 protocol 25
- 1.4 Function 26
- 1.4.4 Special Setting Mode 27
- 1.4.5 LED Indications 27
- 1.4.6 Errors 28
- 1.4.7 Initialization 29
- 1.4.8 Initialization Setting 30
- 1.4.9 Physical Specification 30
- Table 1-20. Consumables 31
- OPERATING PRINCIPLES 32
- 2.1 Overview 33
- TRANS(T1) 36
- 2.2.2.1 Major Elements 37
- 2.2.2.2 Reset Circuit 38
- E05B58** 40
- TROUBLESHOOTING 43
- 3.1 Overview 44
- Troubleshooting Overview 40 45
- Is th e 46
- 2. Error is detected 47
- Figure 3-3. Flowchart 2 47
- Figure 3-4. Flowchart 3 47
- Figure 3-5. Flowchart 4 48
- 5. Abnormal Control Panel 48
- Figure 3-6. Flowchart 5 48
- DISASSEMBLY AND ASSEMBLY 55
- 4.1 Overview 56
- 4.1.3 Work Completion Check 57
- 4.2 Disassembly 58
- 4.2.1 Housing Removal 59
- 4.2.2 Circuit Boards Removal 60
- ADJUSTM ENT 61
- REQUIRED 61
- 4.2.3 Control Panel Removal 62
- 4.2.5.1 Print Head Removal 64
- C leaner, H ead 67
- Pum p C om ponents 67
- Assem bly O rder 67
- Motor, Assembly, PF 69
- (behind the fram e) 69
- [C B S w ith w a s h e r] 70
- G ear, 34 70
- BUSH, FIXING, SHAFT, LEFT 71
- LEVER, HO PPER, RELEASE 71
- BUSH, FIXING, SHAFT 71
- BUSH, PARALLEL ADJUST, RIGHT 73
- Side fram e of 73
- PAPER G UIDE, LEFT 76
- SHAFT, PAPER G UIDE, UPPER 76
- ROLLER, ASSEM BLY, PF 77
- 4.2.5.11 HP Sensor Removal 78
- ADJUSTMENT 81
- 5.1 Overview 82
- 5.2 Adjustment 83
- Adjustment Adjustment 79 84
- 5.3.1 Adjustment Program 85
- 6. Select “World” 86
- Prom pt-SP750 87
- Adjustm ent Lever 90
- 5.3.5 Bi-D Adjustment 91
- 5.3.6 Head Cleaning 92
- 5.3.7 Initial Ink Charge 93
- MAINTENANCE 95
- 6.1 Overview 96
- 6.1.3 Lubrication 97
- Maintenance Overview 93 98
- Maintenance Overview 94 99
- Maintenance Overview 95 100
- APPENDIX 101
- 7.1 Connector Summary 102
- Appendix Connector Summary 98 103
- Appendix Connector Summary 99 104
- 7.2 Component Layout 105
- Appendix Component Layout 101 106
- 7.3 Exploded Diagram 107
- Appendix Exploded Diagram 103 108
- Appendix Exploded Diagram 104 109
- 7.4 Electric Circuit 110
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