Resolving printing problems, All printer lights are on | HP K550

Resolving printing problems

Printer shuts down unexpectedly

Check the power and power connections

▲Make sure the printer is connected firmly to a functioning alternating current (AC) power outlet. See Electrical specifications for voltage requirements.

Check the printer vents

▲The printer vents are located on the sides of the printer. If the vents are covered and the printer overheats, the printer automatically turns off. Make sure the vents are not covered and the printer is in a cool, dry location. See Environmental specifications for the required operating environment for the printer.

All printer lights are on

A non-recoverable error has occurred

▲Disconnect all cables (such as power cord, network cable, and USB cable), wait about 20 seconds, and reconnect the cables. If the problem persists, visit HP website (www.hp.com/ support/officejetprok550) for the latest troubleshooting information, or product fixes and updates.

Printer is not responding (nothing prints)

If the printer supports wireless communication, see also Problems setting up or using wireless communication.

Check the printer setup

▲See General troubleshooting tips.

Check the printhead initialization

▲When printheads are installed or replaced, the printer automatically prints a few alignment pages to align the printheads. This process takes about 8 minutes. Until this process is complete, only the automatic alignment pages can be printed.

Check the printer software installation

▲If the printer is turned off when printing, an alert message should appear on your computer screen; otherwise, the printer software might not be installed correctly. To resolve this, uninstall the software completely, and then reinstall the printer software. See Uninstalling the printer software.

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Chapter 4 Maintaining and troubleshooting

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HP K550 manual Resolving printing problems, Printer shuts down unexpectedly, All printer lights are on

Contents

HP Officejet Pro K550 Series Page HP Officejet Pro K550 Series Safety Information Copyright InformationTrademark Credits Table of contents Configuring and managing the printer Printer lights reference Appendix a HP supplies and accessories Appendix B Support and warranty 125 Getting started Finding other resources for the product Resource Description Location Finding other resources for the product Accessibility VisualMobility Support Understanding the printer parts Front view Control panel Back view Enww Installing the accessories Installing the duplex unit To install a duplex unit Installing tray To install tray Enww Using the printer Tips for selecting and using print media Selecting print mediaCards and envelopes Photo paper Understanding specifications for supported media Understanding supported sizesTransparencies Custom-sized media Cards Photo mediaOther media Setting minimum margins Understanding supported media types and weightsTray Type Weight Capacity Media Left margin Right margin Top margin Bottom Margin Loading media To load tray 1 or tray Enww Configuring trays To configure the traysWant to Changing print settings To change default settings for all future jobs WindowsTo change settings Mac OS Canceling a print job Printing on both sides duplexing Guidelines for printing on both sides of aTo perform duplexing Windows To perform automatic duplexing Mac OS Open the Two-Sided Printing panel Printing on special and custom-sized media To print on special or custom-sized media WindowsTo print on special or custom-sized media Mac OS Open the Paper Type/Quality panel Enww Maintaining and troubleshooting Replacing the ink cartridges To replace the ink cartridges To print the print quality diagnostic Maintaining the printheadsTo check printhead health Enww To clean the printheads To align the printheadsTo calibrate the linefeed To clean the printhead contacts manually Enww To replace the printheads Calibrating the color Troubleshooting tips and resources General troubleshooting tips Resolving printing problems Printer shuts down unexpectedlyAll printer lights are on Printer is not responding nothing prints Printer does not accept printhead Printer takes a long time to print Placement of the text or graphics is wrong Blank page printedSomething on the page is missing or incorrect Check the page-orientation setting Check the media size Poor print quality and unexpected printouts Poor quality printoutsMeaningless characters print Ink is smearing Ink is not filling the text or graphics completelyOutput is faded or dull colored Colors are printing as black and white Wrong colors are printingPrintout shows bleeding colors Colors do not line up properly Resolving paper-feed problems Another paper-feed problem is occurringTray cannot be inserted Pages are skewing Multiple pages are being picked up Resolving printer management problems Embedded Web server cannot be opened Troubleshooting installation issues Problems printing an alignmentProblems installing software Problems connecting to a network Problems connecting to a wired network Problems setting up or using wireless communicationSelect Standard TCP/IP Port and click New Port Check the wireless network settings Check the signal strength Check the printer lights Clearing jams To clear a jam To perform paper feed test To avoid jams Printer lights reference Interpreting control panel lights Light description /Light pattern Interpreting control panel lights Explanation and recommended action Enww Explanation and recommended action Interpreting network connector lights Light description/Light pattern Interpreting network connector lights Enww Configuring and managing the printer Managing the printer Overview of printer management tasksIf you want to Use these tools Administer the printer Monitor the printerUse this tool To obtain the following information Use this tool Configure network settings Use this tool To do the following Pages Contents Overview of printer management toolsEmbedded Web server To open the embedded Web server Tabs Contents Toolbox WindowsTo open the Toolbox Toolbox tabs Print PQ print quality diagnostic page Allows you to Print Configuration Page Allows you to printHP Printer Utility Mac OS To open the HP Printer Utility Network Printer Setup Utility Mac OS HP Web Jetadmin softwarePrinter Settings panel To open the Network Printer Setup Utility HP Instant Support Security and privacy To gain access to HP Instant Support To gain access to myPrintMileageMyPrintMileage Understanding the configuration Network Configuration Wired Wireless To print the configuration Configuring the printer Windows Direct connection To connect the printer before installing the software To share the printer on a locally shared network To install a network printer Network Connection To install the printing software on client computers To install the printer driver using Add PrinterSelect Network Printer or Network Printer Server Configuring the printer Mac OS To share the printer among computers running Mac OS Understanding 802.11 wireless network settings Communication modeNetwork name Ssid Security settings Data encryption To set up the printer on an ad hoc network Mac OS To set up the printer for wireless communication Windows To set up wireless communication using SecureEasySetup SES To turn off wireless communication Guidelines for reducing interference on a wireless network Guidelines for ensuring wireless network securityTo add hardware addresses to a wireless access point WAP Other guidelines Enww Uninstalling the printer software To uninstall the printer software WindowsTo uninstall the printer software Mac OS Double-clickAdd/Remove Programs Uninstalling the printer software Enww HP supplies and accessories Ordering printing supplies online System requirements for ordering printing suppliesTo order printing supplies Accessories Supplies Ink cartridgesPrintheads HP media Support and warranty Obtaining electronic support Obtaining HP telephone support Before you callTelephone support numbers Country/Region Telephone number Enww Enww Enww Hewlett-Packard limited warranty statement Extent of limited warrantyHP product Duration of Limited Warranty Limitations of warranty Limitations of liabilityLocal law Hewlett-Packard limited warranty statement HP Inkjet Supplies Warranty Quick Reference Is your product covered under warranty?End of warranty date locations Date format YYYY/MM/DD HP Inkjet Supplies Expiration Printer specifications Physical specificationsHP Officejet Pro K550 HP Officejet Pro K550dtn/K550dtwn Operating system and network protocol specifications Features Functional SpecificationsSystem requirements Draft mode Normal modeBest mode Environmental specifications Supported devices Enww Regulatory information FCC statement Shielded cablesExposure to radio frequency radiation Power cord statement Other regulatory informationLED classification Regulatory information for wireless products Regulatory information for wireless products Declaration of conformity Local Contact for regulatory topics only HP OfficeJet Pro K550dtwn Power consumption Material safety data sheetsEnvironmental sustainability program Reduction and elimination Recycling Product packagingPlastics HP products and supplies Enww Index Cables Enww Enww Warranty