Epson TM-U950 - Default Chapter; Table of Contents; Tm-U950;Tm-U950 P Technical Manual

Rev. A v
TM-U950/TM-U950P Technical Manual
Contents
Chapter 1
Features and General Specifications
Features ...................................................................................................................................................................................... 1-1
General Specifications .............................................................................................................................................................. 1-3
Printing Specifications ...................................................................................................................................................... 1-3
Character Specifications .................................................................................................................................................. 1-4
Paper Specifications ......................................................................................................................................................... 1-5
Paper Roll Feed Mechanism ............................................................................................................................................ 1-9
Journal Paper Take-up Mechanism ................................................................................................................................ 1-9
Auto-cutter ........................................................................................................................................................................ 1-9
Electrical Specifications .................................................................................................................................................... 1-9
Stamp .................................................................................................................................................................................. 1-10
Ink Ribbon ......................................................................................................................................................................... 1-10
Dimensions, Weight, Finish ............................................................................................................................................ 1-11
Environmental Specifications ......................................................................................................................................... 1-11
Reliability ........................................................................................................................................................................... 1-12
Hardware Configuration ......................................................................................................................................................... 1-13
Main Unit Configuration ................................................................................................................................................. 1-13
Main Unit Specifications .................................................................................................................................................. 1-14
Connectors ......................................................................................................................................................................... 1-17
Interface .............................................................................................................................................................................. 1-19
Switches and Buttons ....................................................................................................................................................... 1-27
Functions .................................................................................................................................................................................... 1-31
Error Processing ................................................................................................................................................................ 1-31
Self-test ............................................................................................................................................................................... 1-32
Hexadecimal Dumping .................................................................................................................................................... 1-32
Printing Operation ............................................................................................................................................................ 1-33
Options ....................................................................................................................................................................................... 1-34
AC Adapter (PS-150) ........................................................................................................................................................ 1-34
Journal Lock ...................................................................................................................................................................... 1-34
Chapter 2
Mechanism Configuration and Operating Principles
Printer Mechanism Components ............................................................................................................................................ 2-1
Printer Mechanism Operating Principles .............................................................................................................................. 2-2
Printing Assembly............................................................................................................................................................. 2-2
Sensor Assemblies............................................................................................................................................................. 2-4
Paper Feed Assembly ....................................................................................................................................................... 2-9
Slip Paper Assembly ........................................................................................................................................................ 2-12
MICR Reader Assembly (for printers with a MICR reader) (not available for the TM-U950P) ........................... 2-16
Ribbon Feed Assembly .................................................................................................................................................... 2-18
Stamp Assembly (for printers with a stamp assembly) .............................................................................................. 2-19
Auto-cutter Assembly ...................................................................................................................................................... 2-20
Paper Roll Take-up Assembly ........................................................................................................................................ 2-23
Electrical Circuitry Operating Principles .............................................................................................................................. 2-25
Hardware Configuration ................................................................................................................................................. 2-25
Main Board Operating Principle .................................................................................................................................... 2-30
MICR Board Operating Principle (on printers with a MICR reader) (not available for the TM-U950P) ............ 2-49
CONFIDENTIAL