HP 400 manual Problem Resolution

5

Problem Resolution

Chapter Contents

Section Title											Page
Troubleshooting Tools	.	.	.	.	.	.	.	.	.	.	5-2
Overall Troubleshooting	.	.	.	.	.	.	.	.	.	.	5-3
Solving Power Adapter Problems	.	.	.	.	.	.	.	.	.	.	5-4
Troubleshooting the Printer	.	.	.	.	.	.	.	.	.	.	5-4
Self-Tests	.	.	.	.	.	.	.	.	.	.	5-4
Power On Self-Test	.	.	.	.	.	.	.	.	.	.	5-4
Printer Demo Page	.	.	.	.	.	.	.	.	.	.	5-5
Printing Problems	.	.	.	.	.	.	.	.	.	.	5-5
Printer Light Indications	.	.	.	.	.	.	.	.	.	.	5-8
Solving Carriage Stall Conditions	.	.	.	.	.	.	.	.	. .5-10
Troubleshooting Paper Feed Operations	.	.	.	.	.	.	.	.	. .5-12
Clearing Paper Jams	.	.	.	.	.	.	.	.	. .5-14
Avoiding Print Skew	.	.	.	.	.	.	.	.	. .5-16
Printer Skew Specification	.	.	.	.	.	.	.	.	. .5-16
Measuring Paper Squareness	. . . . . . . . . .5-16
Measuring Print Skew . . . . . . . . . . . . . . . . . . . . . . .5-17
Troubleshooting Communication Problems	.	.	.	.	.	.	.	.	. .5-18
Troubleshooting Print Cartridges	.	.	.	.	.	.	.	.	. .5-20
Short Print Cartridge Life	.	.	.	.	.	.	.	.	. .5-20
Identifying the Print Cartridge Expiration Date . . . .	.	.	.	.	.	.	.	.	. .5-22
Using the Print Cartridge Cleaning Routine	.	.	.	.	.	.	.	.	. .5-24
Removing Crusted Ink from the Print Cartridge Nozzles .	.	.	.	.	.	.	.	.	. .5-25
Cleaning the Electrical Contacts	.	.	.	.	.	.	.	.	. .5-26
Clearing Clogged Print Cartridge Nozzles	.	.	.	.	.	.	.	.	. .5-26
Troubleshooting Print Quality	.	.	.	.	.	.	.	.	. .5-27
Solving Black Print Quality Problems	.	.	.	.	.	.	.	.	. .5-27
Solving Color Print Quality Problems	.	.	.	.	.	.	.	.	. .5-28
Printouts Missing Rows of Dots	.	.	.	.	.	.	.	.	. .5-31
Inconsistent Color Fill Patterns	.	.	.	.	.	.	.	.	.	.5-33

Problem Resolution 5-1