ENCAD CADJET, Service Manual

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CadJet 3D Service Manual
Table of Contents
Chapter 1 General Description ............................................................ 1-1
Introduction ............................................................................................................... 1-1
Overview ................................................................................................................... 1-3
Related Publications .......................................................................................... 1-3
Electrostatic Discharge (ESD) Sensitivity ................................................................. 1-3
Warnings, Cautions and Notes ................................................................................. 1-4
Printer Specifications ................................................................................................ 1-5
Contents of this Service Manual ................................................................................ 1-6
Technical Support ..................................................................................................... 1-8
Chapter 2 Theory of Operation ............................................................ 2-1
Introduction ............................................................................................................... 2-1
CadJet 3D Printer General Block Diagram ................................................................ 2-1
Paper (Media) Axis Drive .......................................................................................... 2-3
The Carriage Axis Drive ............................................................................................. 2-4
Main Printed Circuit Board (MPCB) ........................................................................... 2-5
Microprocessor .................................................................................................. 2-6
Gate Array ......................................................................................................... 2-6
Memory Circuits ................................................................................................. 2-7
Flash EEPROM ........................................................................................... 2-7
DRAM .......................................................................................................... 2-8
Serial EEPROM ........................................................................................... 2-9
Stepper Motor Controller ..................................................................................... 2-9
Servo Motor Controller ...................................................................................... 2-11
Interface Circuits: Serial & Parallel ................................................................... 2-13
Carriage Assembly Circuits .................................................................................... 2-14
Control Panel .......................................................................................................... 2-15
Power Supply ......................................................................................................... 2-16
Beeper and Fans .................................................................................................... 2-16
Chapter 3 Maintenance ........................................................................ 3-1
Introduction ............................................................................................................... 3-1
Scheduled Maintenance ........................................................................................... 3-1
Cleaning Procedures .......................................................................................... 3-2
External Cleaning ......................................................................................... 3-2
Slide Shaft Cleaning ..................................................................................... 3-2