
EPSON Stylus COLOR 900/900N
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Table of Contents
Chapter 1 - Product Description
Features................................................................. 4
Specifications......................................................... 5
Printing Specifications.................................................... 5
Options and Consumable Products................................ 8
Paper Specifications....................................................... 9
Printable Area............................................................... 11
Ink Cartridge Specifications.......................................... 13
Electrical Specifications................................................ 15
Environmental Conditions ............................................ 15
Reliability...................................................................... 16
Safety Approvals.......................................................... 16
Acoustic Noise.............................................................. 16
CE Marking (220 ~ 240 V version)............................... 16
Physical Specifications................................................. 16
Interface Specificatons......................................... 17
Parallel Interface (Forward Channel) ........................... 17
Parallel Interface (Reverse Channel)........................... 20
Mac Serial Interface ..................................................... 22
USB Interface............................................................... 23
Printer Languages and Emulation................................ 23
Prevention of Data Transfer Time-out.......................... 23
Automatic Interface Selection....................................... 23
Control Panel Operation....................................... 25
Indicators (LEDs).......................................................... 25
Panel Functions............................................................ 26
Printer Condition and Panel Status.............................. 29
Error Status.......................................................... 30
Ink Out.......................................................................... 30
Paper Out..................................................................... 30
Paper Jam.................................................................... 30
No Ink Cartridge ........................................................... 30
Maintenance Request................................................... 30
Fatal Errors................................................................... 30
Printer Initialization............................................... 31
Chapter 2 - Operating Principles
Overview .............................................................. 33
Printer Mechanism Operating Principles.............. 34
Carriage Mechanism .................................................... 34
Printhead Operation ..................................................... 35
Pump/ASF Motor and Switching Mechanism............... 38
Auto Sheet Feeder (ASF) Unit...................................... 39
Pump Mechanism......................................................... 40
Paper Feed Mechanism ............................................... 41
Electrical Circuit Operation Principles .................. 42
C265 PSB/PSE Power Supply Board........................... 42
C265 PNL Board.......................................................... 44
C265 Relay Board........................................................ 44
C265 Main Board.......................................................... 45
CR Motor Driver Circuit ................................................ 54
PF Motor Driver Circuit................................................. 55
Pump/ASF Motor Driver Circuit.................................... 56
Printhead Driver Circuit ................................................ 57
Cooling Fan Driver Circuit ............................................ 59
ASF Solenoid Driver Circuit.......................................... 62
EEPROM Control Driver Circuit.................................... 63