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BJC-5000 printer Service Manual

CONTENT

Part 1: Safety and Precautions
1. SAFETY PRECAUTIONS
1.1 Moving Parts
1.2 Ink Stains
1.2.1 Ink path
1.2.2 Ink mist
1.3 BJ Cartridge Heat-Up
2. MACHINE PRECAUTIONS
2.1 Handling BJ Cartridges
2.1.1 Unpacking the BJ cartridge
2.1.2 Preventing clogged nozzles
2.1.3 Power on/off
2.1.4 When not using the printer
2.1.5 Ink electroconductivity
2.2 Handling Ink Cartridges (Color BJ Cartridge)
2.2.1 Unpacking the ink cartridge
2.2.2 Protecting the ink cartridge
2.3 Printer Precautions
2.3.1 Preventing deformation of the spur tip
2.3.2 Static electricity damage prevention
2.3.3 Ink leakage prevention
3. MAINTENANCE SERVICE PRECAUTIONS
3.1 EEPROM Data Precautions
3.2 Static Electricity Precautions
3.3 Disassembly and Assembly Precautions
3.4 Built-In Self-Diagnosis

Part 2: Product Specifications
1. PRODUCT OUTLINE
1.1 Product Outline
1.2 Features
1.3 BJ Cartridge
1.3.1 Color BJ cartridge (BC-21e)
1.3.2 Black BJ cartridge (BC-23)
1.3.3 Black BJ cartridge (BC-20) (reference)
1.3.4 Photo BJ cartridge (BC-22e Photo)
1.4 Dual Cartridge System
1.5 BJ Cartridge Container
1.6 Consumables
1.6.1 BJ cartridge (Black, Color, Photo)
1.6.2 Ink cartridge (BC-21e Color BJ Cartridge only)
2. SPECIFICATIONS
2.1 Printer Specifications
2.2 Paper Specifications
2.2.1 Paper size
2.2.2 Paper type
2.2.3 Cut sheet feeder sheet loading capacity
2.2.4 Printing area
2.3 Interface Specifications

Part 3: Operating Instructions
1. PRINTER SETUP
1.1 Unpacking and Inspection
1.2 Site Selection
1.3 Setup Procedure
1.3.1 Connecting the interface cable
1.3.2 Connecting the AC power cord
1.3.3 Turning on the printer
1.3.4 Installing the BJ cartridge
1.3.5 Replacing the ink cartridge
1.3.6 BJ cartridge container
1.4 Turning the Printer On/Off
1.4.1 Turning the printer on
1.4.2 Turning the printer off
1.5 Paper Settings
1.6 Banner Print
1.7 Names of Parts and Their Functions
2. TRANSPORTING THE PRINTER
2.1 Carrying the Printer
2.2 Transporting the Printer
3. PRINTER SERVICING FUNCTION
3.1 Error Indications
3.2 Cleaning the BJ Cartridge
3.3 Self-Test Printout
3.4 Service Mode
3.5 Service Mode Print Sample
3.5.1 Ripple pattern
3.5.2 Service information printing

Part 4: Technical Reference
1. OVERVIEW
1.1 Printer Block Diagram
1.2 Initialization Sequence Flowchart
1.3 Print Signal Flow
1.3.1 Data between host computer and printer
1.3.2 Print signal flow in the printer
1.4 Print Drive
1.4.1 Print drive control
1.5 Power-Off Sequence Flowchart
2. FIRMWARE
2.1 Interface
2.1.1 Compatible mode
2.1.2 Nibble mode
2.1.3 ECP mode
2.2 Printing System
2.3 Printing Modes
2.3.1 Printing mode
2.3.2 Photo print mode
2.3.3 Multi-drop print mode
2.4 Cartridge Automatic Adjustment Function
2.4.1 Automatic correction of head nozzle alignment
2.4.2 Automatic density correction of left/right cartridge
2.5 Data Separation Function
2.6 Ink Smear Control
2.7 Head Overheating Protection Control
2.8 Auto Power-Off
3. PRINTER MECHANICAL SYSTEM
3.1 Overview
3.1.1 Mechanical components
3.2 BJ Cartridge
3.2.1 Black BJ cartridge structure
3.2.2 Color BJ cartridge structure
3.2.3 Photo BJ cartridge structure
3.2.4 Bubble head unit structure
3.3 Purge Unit
3.3.1 Purge unit functions
3.3.2 Purge unit structure
3.4 Carriage
3.4.1 Carriage function
3.4.2 Carriage structure
3.5 Paper Feed/Cut Sheet Feeder
3.5.1 Paper feed/cut sheet feeder function
3.5.2 Sheet feeder structure
4. PRINTER ELECTRICAL SYSTEM
4.1 Overview of Printer Electrical System
4.2 Logic Section
4.2.1 Logic section block diagram
4.2.2 Logic section components
5. SENSOR FUNCTIONS
5.1 Pick-Up Roller Sensor
5.2 Paper End Sensor
5.3 Home Position Sensor
5.4 Purge Sensor
5.5 Cover Open Sensor
5.6 Printer Temperature Sensor
5.7 Head Temperature Sensor
5.8 Auto-Alignment Sensor
5.9 Waste Ink Amount Detection

Part 5: Maintenance
1. Maintenance
1.1 Parts for Regular Replacement
1.2 Consumables
1.3 Periodic Maintenance
2. SERVICE TOOLS
2.1 List of Tools
3. GREASE APPLICATION
4. DISASSEMBLY AND REASSEMBLY
4.1 Disassembly and Reassembly
4.2 Disassembly and Reassembly Cautions
4.2.1 Fastening screws of idler pulley assembly
4.2.2 Carriage guide frame installation
4.2.3 Unlocking the carriage lock
4.3 Logic Board and Waste Ink Absorber Replacement Cautions
4.3.1 Logic board replacement cautions
4.3.2 Cautions after replacing the waste ink absorber
5. ADJUSTMENTS
5.1 Adjustment Point
5.2 When Adjustment is Required
5.2.1 Tools required for adjustment
5.3 Adjustment Procedure
5.3.1 Preparation
5.3.2 Adjustment
6. TROUBLESHOOTING
6.1 Troubleshooting
6.1.1 Overview
6.1.2 Troubleshooting cautions
6.2 Error Condition Diagnostics
6.2.1 Diagnostic flowcharts
6.2.2 Error recovery
7. LOCATION AND SIGNAL ASSIGNMENT
7.1 Logic Board
8. CIRCUIT DIAGRAMS
8.1 Parts Layout
8.1.1 Logic board
8.2 Circuit Diagrams

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We are in business since 2002 and do our best to give our customers perfect service!

joeffrey marquez	2013-02-28 04:48:07
Epson PX830. A printer error has occurred. turn off the printer, then press On button to turn on. see your documentation. Can I reset this printer?

eloana coelho	2023-12-18 17:33:46
I always bought the key and it arrived correctly, but unfortunately in my last 3 purchases, the key did not arrive. I already sent an email to support with the order number with the problem, they told me that everything was resolved, but nothing was resolved, and I still don't have the key. very bad and slow customer support, it took almost 2 days for useless response.

Peter Sam	2009-08-11 10:29:23
YES YOU ARE A GENIOUS THANKS A LOT! THE PROGRAM IS WORKING NOW!

Malcolm Mackenzie	2013-02-10 15:09:20
Worked a treat - tried other utilities without success Thank you

Charles Breward	2025-07-11 12:44:59
Thank you for your service. The process was straight forward, thank you.

Charles Brown	2012-06-22 20:30:54
Thrilled to bits - I thought my trusty printer was destined for the scrap heap ( although nothing wrong except it would no longer operate due to "ink pad full") and I would have to buy new, until I alighted on your product . Also if the ink pad actually causes problem tyou advise where I can buy a replacement kit and do it myself. You perform a great service to printer users. Well done!