HP 450 manual To clean the print cartridges, To perform a level 1 cleaning

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The ink in the print cartridges has been carefully formulated to ensure superior quality and compatibility with your printer. HP is not responsible for damage to the printer that results from modifying or refilling the print cartridges.

There are three cleaning levels available:

￿Level 1 cleaning is the quickest and uses the least amount of ink.

￿Level 2 cleaning should be performed only if level 1 cleaning was insufficient.

￿Level 3 cleaning is the most thorough and consumes the most ink and time. Level 3 cleaning should be performed only if level 2 cleaning was insufficient.

After each cleaning, the printer prints a test page so that you can check the print quality, and the Toolbox prompts you to perform the next level of cleaning if necessary.

Do not clean the print cartridges unless necessary; cleaning the print cartridges uses ink and shortens the life of the print cartridges.

To clean the print cartridges

If you have the printer driver or Toolbox installed, you can clean the print cartridges from the Services tab in the driver or the Printer Services tab in the Toolbox. You can also clean print cartridges by using the printer buttons. The following procedure shows you how.

Cleaning the print cartridges via the printer buttons does not produce a test page.

To perform a level 1 cleaning

1Press and hold down the POWER BUTTON.

2While holding down the POWER BUTTON, press the CANCEL BUTTON twice.

3Release the POWER BUTTON. The printer begins the print cartridge cleaning process.

To perform a level 2 cleaning

1Press and hold down the POWER BUTTON.

2While holding down the POWER BUTTON, press the CANCEL BUTTON twice and then press the RESUME BUTTON once.

3Release the POWER BUTTON. The printer begins the print cartridge cleaning process.

ENWW

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Contents Hp deskjet 450 mobile printer User’s guide Enww Contents Using the Toolbox For more information Setting UpFront view Understanding printer parts and functionsBottom view Back viewUnderstanding printer buttons and LEDs Unpack the printer Setting up the printerCheck the box contents Connect the power cordTurn on the printer Install the print cartridgesEnww For Windows Install the softwareConnect the printer cable if required Load paperBattery safety Using the battery optionalAlign the print cartridges Installing the battery Understanding the batteryCharging and using the battery Important notes Removing the batteryTravel tips USB Installing SoftwareFor Windows To install the printer driverMaking copies of the printer software To uninstall the software To verify the installationFor Macintosh To install the printer driver Mac OSSystem requirements Installing software for PDAsFor Palm OS BtPrintTo copy from the Starter CD Installing other softwareTo install the HP Deskjet 450 PDA Guide Printing from mobile phonesPrinting Printer features Windows and MacintoshTo change default print settings To change print settings for the current documentPrinting from notebooks and desktops Windows Infrared printing To print from a Windows applicationSelecting the default printer using other options Bluetooth printingPrinting from Macintosh Using the HP Inkjet Utility Selecting the default printer in OSDisplaying the HP Inkjet Utility Viewing the HP Inkjet Utility panels Two-sided printingCanceling a print job Selecting print media Selecting and UsingTips for selecting and using print media Print MediaMinimum printing margins Loading print mediaPrinting cards Calibrating color Printing photographsPrinting digital camera photographs To print from a CompactFlash card Printing on transparencies For Windows Printer Status tab Using the ToolboxInformation tab MyPrintMileage Installing myPrintMileage AgentPrinter Services tab Cleaning the print cartridges Cleaning the printerMaintaining the Printer To perform a level 1 cleaning To clean the print cartridgesTo perform a level 2 cleaning Aligning the print cartridges To perform a level 3 cleaningTo align from the printer driver in Windows To align in Macintosh USB only Replacing the print cartridgesTo align in DOS Enww Calibrating color Single-cartridge printing modeReplaceable ink service module Check the front access cover TroubleshootingGeneral troubleshooting tips Check the powerInfrared BluetoothCheck the printer connection Parallel or USBCheck the LEDs Check the print settingsCheck the printer selection Check the print mediaPrinting a demo Solving printer problemsPrinting diagnostic and configuration pages Getting printer informationCheck the printer setup Check the front access coverPrinter takes a long time to print Be patient Unexpected printer shutdownCheck the status of the print cartridges Check available system resourcesBlank page is printed Solving printing problemsMeaningless characters are printed Placement of the text or graphics is wrong Check if print cartridge is removed Check the color print settingsSomething on the page is missing or incorrect Check that the media is loaded correctlyCheck the paper quality Check the print modePoor print quality Ink is smearingFaded or dull-colored output Check the printer driver settingsCheck the media type print setting Ink is not filling the text or graphics completelyWrong colors are printing Colors are printing as black and whiteBleeding colors in printout If printing using a single print cartridgeCheck the print settings Check the graphics placementBluetooth printing does not work Wireless printing problemsInfrared printing does not work Paper skew Solving media feed problemsPaper output problem Media is not picked up from the input trayPrint media is jammed Tips for avoiding paper jams Solving Macintosh-specific problemsPrint cartridges HP Supplies AccessoriesAccessories SuppliesHP Office Recycled Paper HP Premium Inkjet Heavyweight PaperHP Printing Paper HP Office PaperHP Premium Glossy Paper HP Premium Photo PaperHP Photo Paper HP Everyday Photo PaperHP Greeting Card Paper HP Professional Brochure and Flyer PaperHP Premium Plus Transparency Film HP Premium Inkjet Transparency FilmPrinter Specifications Enww Enww LED Reference Enww Enww Enww HP telephone support Customer SupportInternet Hp instant supportFor customers outside of North America For customers in North AmericaAustralia Calling from elsewhere in the worldExtent of Limited Warranty Hewlett-Packard Limited Warranty StatementLimitations of Liability Limitations of WarrantyLocal Law Declaration of Conformity Numerics IndexEnww Enww
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