Table Of Contents - Epson Photo750 Service Manual

Stylus Photo 750
Product Description
Overview......................................................................................................... 4
General Characteristics............................................................................. 4
General Description........................................................................................ 5
Printing ...................................................................................................... 5
Paper Feeding........................................................................................... 6
Paper Specification ................................................................................... 6
Printable Area............................................................................................ 7
Adjust Lever Settings ................................................................................ 8
Environmental Conditions ......................................................................... 9
Ink Cartridge............................................................................................ 10
Input Data Buffer ..................................................................................... 11
Electric Specification ............................................................................... 11
Reliability ................................................................................................. 11
Safety Approvals ..................................................................................... 11
Acoustic noise ......................................................................................... 11
CE Marking.............................................................................................. 12
Printer Language and Emulation............................................................. 12
Parallel Interface........................................................................................... 14
Parallel Interface(Forward channel) ........................................................ 14
Parallel Interface(Reverse channel) ........................................................ 15
Serial Interface ........................................................................................ 18
USB(Universal Serial Bus) Interface ....................................................... 19
Prevention of data transfer time-out on the host ..................................... 20
Interface selection ................................................................................... 20
IEEE 1284.4 protocol .............................................................................. 20
Function........................................................................................................ 21
Control Code ........................................................................................... 21
Bi-directional Command .......................................................................... 21
Control Panel........................................................................................... 21
Special Setting Mode .............................................................................. 22
LED Indications ....................................................................................... 22
Errors....................................................................................................... 23
Initialization.............................................................................................. 24
Initialization Setting ................................................................................. 25
Physical Specification.............................................................................. 25

Table of Contents

Consumables and options....................................................................... 26
Operating Principles
Overview ...................................................................................................... 28
Printer Mechanism .................................................................................. 28
Operating Principles of Electric Circuit ......................................................... 30
C257 PSB Power Supply Circuit ............................................................. 30
C259 Main Control Circuit ....................................................................... 32
Troubleshooting
Overview ...................................................................................................... 39
Unit Level Troubleshooting........................................................................... 41
Unit Repair (Power Supply Board) ............................................................... 44
Repair of the Control Board.......................................................................... 45
Unit Repair (Printer Mechanism) .................................................................. 47
Disassembly and Assembly
Overview ...................................................................................................... 51
Precautions ............................................................................................. 51
Tools ....................................................................................................... 51
Work Completion Check ......................................................................... 52
Disassembly ................................................................................................. 53
Housing Removal .................................................................................... 54
Circuit Boards Removal .......................................................................... 55
Control Panel Removal ........................................................................... 57
Absorber Tray, Assembly;A Removal ..................................................... 58
Printer Mechanism Removal ................................................................... 59
Adjustment
Overview ...................................................................................................... 77
Required Adjustment............................................................................... 77
Adjustment ................................................................................................... 78
Revision A
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