HP DesignJet 500 and 800 Series Service Manual Troubleshooting Introduction Troubleshooting System Error Codes Solving Print Quality Problems Cover Sensors are not Working The Line Sensor has Problem Detecting Media Troubleshooting Paper-Axis Shutdowns Problems with the Vacuum Fan Vacuum suction much lower at high altitudes Banding at variable extreme environmental conditions The Priming Procedure Fails Using the Power Switch LED to Troubleshoot Using the Boot-Up Sequence to Troubleshoot Using the Formatter/ Accessory Card LEDs to Troubleshoot System Error Codes Introduction Continuable and Non-Continuable Error Codes System Error Codes – Explanation Error (more…)

HP DeskJet 2500C Service Manual Formatter/Accessory Card LEDs to Troubleshoot System Error Codes Introduction Continuable and Non-Continuable Error Codes System Error Codes – Explanation Error Log Utility Accessing the Error Log Utility Ink Supplies Troubleshooting What are the Ink Supplies? Ink Cartridges? When Should You Replace the Printheads? Obtaining Ink Cartridge Information obtaining Printhead Information Ink Cartridge Status Messages Ink Cartridge Status While Replacing Printhead Status Messages Printhead History Utility Accessing the Printhead History Utility Is the Printer Causing Repetitive Printhead Problems? Is the User Replacing the Printheads (more…)

Lexmark Optra 4049 Service Manual Diagnostic Information Start Power-On Self Test (POST) Symptom Table Banding Background Black Page Blank Page Blurred or Fuzzy Print Dead Machine Duplex Fan (927 Error) Fuser Paper Feed Problem, Dual Rear Feeder Machine Level Information: Paper Feed Problem, High Capacity Feeder Printhead Paper Size Sensing Problem Regularly Spaced Marks Residual Image Random Marks Skew, all edges Stalled (diamonds on display) Vertical Void or Streak Diagnostic Aids Diagnostics Mode Diagnostics Mode Menu Structure Diagnostics Mode Tests Auto Clean Auto Clean Frequency Auto Clean Delay Button Test Charge Roll Defaults Disk (more…)

Epson Stylus Photo 1200 Color Inkjet Printer Manual This manual consists of six chapters and Appendix.
CHAPTER 1. PRODUCT DESCRIPTIONS
Provides a general overview and specifications of the
product.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of electrical and mechanical
operations of the product.
CHAPTER 3. TROUBLESHOOTING
Provides the step-by-step procedures for the (more…)

Epson Stylus Color 440 Manual This manual consists of six chapters and Appendix.
CHAPTER 1. PRODUCT DESCRIPTIONS
Provides a general overview and specifications of the
product.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of electrical and mechanical
operations of the product.
CHAPTER 3. TROUBLESHOOTING
Provides the step-by-step procedures for the
troubleshooting. (more…)

HP Color LaserJet 2500 Service Manual Miscellaneous Items Removal and Installation Introduction Safety Precautions Electrostatic Discharge (ESD) Precautions Required Tools Screw Types Left Hand Cover Right Hand Cover Front Panel Window and Top Cover Media Deflectors Left End Roll-Feed Right End Roll-Feed Back Platen Media Sensor Formatter LAN Card Spittoon Electronics Module Power Supply Scan-Axis Motor Assembly Cutter Assembly Left Encoder Holder Cutter Bushing Cutter Guide Bracket Drive Roller Encoder Sensor Trailing Cable Ink Supply Station Interconnect PCA Service Station and Aerosol Fan Cutter Guide Print Platen Service Station Holder (more…)