HP Officejet Pro L7400 User Guide - Page 7

Contents Configure the device (Windows 50 Direct connection ...50 Install the software before connecting the device (recommended 50 Connect the device before installing the software 51 Share the device on a locally shared network 51 Configure the device (Mac OS 52 Install the software for a direct connection 52 Share the device on a locally shared network 52 Uninstall and reinstall the software 53 8 Maintain and troubleshoot Supported ink cartridges ...56 Replace the ink cartridges ...56 Maintain the printheads ...57 Check printhead health ...58 Print the print quality diagnostic page 58 Align the printheads ...59 Calibrate the linefeed ...60 Clean the printheads ...60 Clean the printhead contacts manually 60 Replace the printheads ...63 Store printing supplies ...64 Store ink cartridges ...65 Store printheads ...65 Clean the device ...65 Clean the scanner glass 65 Clean the exterior ...66 Troubleshooting tips and resources 66 Solve printing problems ...66 The device shuts down unexpectedly 67 Error message appears on control-panel display 67 The device is not responding (nothing prints 67 Device does not accept printhead 68 Device takes a long time to print 68 Blank or partial page printed 68 Something on the page is missing or incorrect 69 Placement of the text or graphics is wrong 69 The device prints half a page, then ejects the paper 70 Poor print quality and unexpected printouts 70 Poor quality printouts ...71 Meaningless characters print 71 Ink is smearing ...72 Ink is not filling the text or graphics completely 72 Output is faded or dull colored 72 Colors are printing as black and white 72 Wrong colors are printing 73 Printout shows bleeding colors 73 Colors do not line up properly 73 Lines or dots are missing from text or graphics 73 3