ENCAD NovaJet 800 Series Manuals

Manuals and User Guides for ENCAD NovaJet 800 Series. We have 1 ENCAD NovaJet 800 Series manual available for free PDF download: Service Manual

ENCAD NovaJet 800 Series Service Manual

ENCAD NovaJet 800 Series Service Manual (288 pages)

Brand: ENCAD | Category: Printer | Size: 7.73 MB

Table of Contents

Table of Contents
9
Chapter 1 General Description

24
- Introduction
  24
- Overview
  26
- Related Publications
  26
- Electrostatic Discharge (ESD) Sensitivity
  26
- Warnings, Cautions and Notes
  27
- Printer Specifications
  28
- Contents of this Service Manual
  29
- Technical Support
  31
Chapter 2 Theory of Operation

32
- Introduction
  32
- Novajet 800 Series Printers General Block Diagram
  33
- Paper (Media) Axis Drive
  35
- The Carriage Axis Drive
  36
- Media Feed and Take-Up System
  37
- Main PWA (Printed Wiring Assembly)
  38
- Main PWA LED Status Indicators
  39
- Microprocessor (CPU)
  39
- Gate Array
  40
- Digital Signal Processor (DSP)
  40
- Memory Circuits
  41
- Flash EEPROM
  41
- Sdram
  42
- Serial EEPROM
  42
- Stepper Motor Controller
  42
- Servo Motor Controller
  44
- Interface Circuits: Serial & Parallel
  46
Chapter 3 Maintenance

53
- Introduction
  53
- Scheduled Maintenance
  53
- Cleaning Procedures
  54
- External Cleaning
  54
- Slide Shaft Cleaning
  54
- Service Station Cleaning
  55
- Linear Encoder Strip Cleaning
  56
- Trailing Cables Cleaning
  57
- Platen/Vacuum Hole Cleaning
  57
- Cartridge Dimples Cleaning
  58
- Flex Cable Contact Cleaning
  59
- Clean and Inspect Stepper Motor Gears
  60
- Clean and Inspect Main PWA
  60
- Clean and Inspect Carriage Assembly
  60
- Dryer Cleaning
  61
- Reseat Connectors on Main PWA and Carriage Boards
  61
- Replace Trailing Cables
  64
- Replace Carriage Cover/Carriage Bushings
  65
- Servo Motor Winding Resistance Check
  66
- Stepper Motor Winding Resistance Check
  67
- Power Feed and Take-Up Motor Winding Resistance Check
  68
- Banding: Hardware Vs Software
  68
- Banding Differences
  69
- Banding Causes & Quick Analysis
  71
- Horizontal Banding Problems
  71
- Vertical Banding Problems
  74
- Line Quality Problems (Overspray)
  75
- Alignments/Adjustments
  76
- Slide Shaft Profile Adjustment
  76
- Head Height Alignment Procedure
  79
- Color Calibration
  83
- Deadband Alignments
  86
- Color Deadband Alignment
  89
- Paper Axis Calibration
  91
- Diagnostics Menu
  92
- Firmware Download/Upgrading for the PC
  95
- Firmware Download/Upgrading for the MAC
  96
- Internal Cabling and Signal Flow Diagrams
  97
Chapter 4 Troubleshooting

100
- Introduction
  100
- No Power
  100
- Initialization Failure
  101
- Media Does Not Move
  102
- Internal ERROR "Carriage Axis Failure
  103
- Internal ERROR "Encoder Sensor Failure
  104
- Internal ERROR "Paper Sensor Failure
  105
- Internal ERROR
  105
- Auto-Load Paper Sensor Failure
  105
- Internal ERROR "MPCB Failure
  106
- Unrecognized Cartridges Error
  106
- Media Sen Ref. Pts Not Initialized (NJ880 Only)
  107
- Image Skews or Moves
  107
- Does Not Print
  107
- Ink Cartridge Misfiring
  108
- Paper Skewing
  109
- Printer Output Is Banding (Horizontal)
  109
- Printer Output Is Banding (Vertical)
  111
- Printer Output Is Banding (Horizontally and Vertically)
  111
- Keypad Locked-Up or Not Functioning Properly
  112
- Noisy Operation
  112
- Line Quality Degraded
  113
- Fan Does Not Power up
  115
- Media Take-Upmotor Not Operating, Sensor Works
  115
- Media Feed Motor Not Operating, Sensor Works
  116
- Media Feed and Take-Up Motors Not Operating
  116
- Both Sensors Working
  116
- Media Feed or Take-Up Sensor(S) Not Operating
  116
- Print Quality Issues
  118
- Cartridge Misfires (Intermittent Banding)
  118
- Failure Analysis - Print Misfires
  119
- Common Misfire Problems
  124
- Clearing Cartridge Misfires
  125
- Multiple Cartridge Failures
  125
- Microbanding
  127
- Banding Differences
  129
- Horizontal Banding
  130
- Vertical Banding
  142
- Line Quality Problems (Overspray)
  145
- Cartridge Warranty
  146
- Cartridge Maintenance & Testing
  147
- Ink Starvation
  150
- Ink Dropout
  156
- Color Test Problems
  159
- Unrecognized Cartridge" Error Message
  162
- Paper Sensor Error
  164
- Encoder Sensor Error
  167
- Autoload Paper Sensor Error
  168
- Carriage Axis Error
  169
- Initialization Failure
  174
- Media Sensor Reference Points Not Initialized
  178
- Hardware Failures/Diagnostic Tests
  178
- Dryer Failure/Sensor Error
  180
- Intermittent Problems/Continuity
  185
- Reinitializing the Printer
  194
- Printer Hesitation/Networking Problems
  195
- Parallel Port Test
  199
- Firmware Downloading Procedures
  200
- NJ850 Printer
  200
- NJ880 Printer
  202
- Media Handling System Failure
  204
Chapter 5 Assembly\Disassembly

205

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