HP Designjet 4000 Service Manual - Page 167
Print Quality, Image is in One Portion of the Printing Area
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6 Print Quality 6-2 Print Quality Troubleshooting Actions 6-2 Choosing the Correct Print Quality Settings 6-3 How to Use the Service Image Quality Diagnostic Print 6-5 What is the Service Image Quality Diagnostic Print? 6-5 Considerations for Printing the Diagnostic Print 6-5 Printing the Service Image Quality Diagnostic Print 6-6 Diagnostic Part 1: Alignment Test 6-7 Diagnostic Part 2: Printheads & Paper Advance Test 6-8 Diagnostic Part 3: Printhead Problems 6-9 Nozzle Print Test 6-11 No Printing Defects Found in the Diagnostic Print 6-12 Print Quality General Advice 6-12 Troubleshooting Print Quality Problems 6-13 Horizontal Lines Across the Image (Banding) 6-13 Advanced Banding Troubleshooting for Experts 6-14 Dark Light Zone Banding (DLZB) 6-17 Lines are Missing or Thinner than Expected 6-18 Solid Bands or Lines Printed Over the Image 6-19 Problems with Graininess 6-20 Print Smudges when Touched 6-20 Paper is not Flat 6-21 Defect Near the Top of the Print 6-22 Problems with Stepped Lines 6-23 Lines are Printed Double or in Wrong Colors 6-23 Lines are Blurred (Ink Bleeds from Lines) 6-24 Problems with Color Accuracy 6-24 Problems with PANTONE Color Accuracy 6-25 Color Matching Between Different HP Designjet Printers 6-26 Problems with Image Clipping 6-28 Image is Completely Blank 6-29 Output Only Contains a Partial Print 6-29 Image is in One Portion of the Printing Area 6-30 Image is Unexpectedly Rotated (PostScript Driver) 6-30 Print is Distorted or Unintelligible 6-31 Print is a Mirror Image of the Original 6-31 One Image Overlaps Another on the Same Sheet 6-31 No Output from the Printer 6-32 Pinchwheel Marks when using Glossy Media 6-32 VLS in 1 Pass Printmodes 6-33 VLS in First 3 Meters after a Media Load 6-34 Bubbles (Only occurs in Cyan, Magenta and Yellow) 6-34 Black Printhead: Decap Problem 6-35 Paper Expansion - Paper Advance (PEPA) 6-36 Bidirectional Offset in Light Color Density Areas 6-37 Ink Contamination on Yellow Printhead 6-37 Satellites in Black Lines 6-38