Epson Stylus Photo 750 Specifications Page 22
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EPSON Stylus Photo 750 Revision A
Product Description Parallel Interface 17
NOTE: Following lists “Notes” when using the parallel interface.
1. “Return GND pin” in the table means twist pair return and is
connected to the signal GND level.
Also, these cables are shielded wires and it is effective means to
connect to each chassis GND in the PC and printer for electrostatic
noise.
2.Conditions for interface are based on TTL level. Rise and fall time
should be within 0.2
µ
s.
3.Refer to figure1-9 for transmission of timing of each signals.
4.Do not perform data transmission ignoring -ACK or BUSY signals.
(Perform the data transmission after confirming that -ACK and BUSY
signals are Low)
5.It is possible to perform the printing test including interface circuit
without using equipment from outside when 8-bit data signal(20-27 pin)
is set to appropriate word code and connect then forcefully to -ACK and
-STRB. However, to perform this, it is necessary to set “Parallel I/F
mode” of EEPROM as normal. Also, set the IEEE-1284.4 packet mode
Off.
The figure below shows the timing chart of the parallel interface.
Figure 1-9. Timing Chart
Typical time of tack is shown below.
Table 1-10. Typical Time of Tack
Parallel I/F Mode Typical time of tack
High speed 0.5
µ
S
Normal speed 2
µ
S
DATA
/S T R B
BUSY
/A C K
d a ta b y te n
data byte n+1
t
hold
t
setup
t
stb
t
next
t
re a d y
t
busy
t
re p ly
t
ack
t
nbusy
tt-out M ax. 120 ns : R ise and fall tim e of every output signals
tt-in M ax. 200 ns : R ise and fall tim e of everu input signals
- 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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