Table of Contents

Print Quality 6-1

Print Quality Troubleshooting Checklist 6-2

Print Modes 6-3

How to Use the Print Quality Test 6-4

What is the Print Quality Test? 6-4

Considerations for Printing the Print Quality Test. 6-4

Printing the Print Quality Test 6-4

Nozzle Print Test 6-6

How to fix the Nozzle Defects 6-7

Color Alignment Print Test 6-7

Solving the Color Alignment Problem 6-8

Overall Print Quality Test in BEST mode 6-9

What is Banding? 6-9

Solving the Banding Problem 6-10

Aligning the Printheads 6-12

Service Accuracy Calibration 6-12

Troubleshooting Print Quality Problems 6-13

Problems with Stepped Lines 6-13

Problems with printing lines 6-14

Problems with Color-to-Color Alignment 6-15

Problems with Horizontal Lines (Banding) 6-17

No Printing Defects Found in the Print Quality Test 6-21

Solving Color Accuracy problems 6-22

Color Consistency problems 6-22

Long Term Color Bleeding (Glossy Papers) 6-22

Color Accuracy Configuration 6-23

Media 6-24

There are Smears or Scratching on the Printed Media 6-24

6

HP DesignJets 1050C and 1055CM Printers Service Manual