HP 3840 manual Manually cleaning print cartridges, Gathering cleaning supplies, Preparing to clean

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HP Deskjet 3840 series printer User's Guide

10.5 Manually cleaning print cartridges

If the printer is used in a dusty environment, a small amount of debris might accumulate inside the case. This debris can include dust, hair, or carpet or clothing fibers. When debris gets on the print cartridges and cradle, ink streaks and smudges might appear on printed pages. Ink streaking is easily corrected by manually cleaning the cartridges and cradle.

Gathering cleaning supplies

You will need the following items to clean the print cartridges and cradle.

Distilled water

Cotton swabs or other soft, lint-free material that will not stick to the cartridges

Be careful not to get ink on your hands or clothing as you clean.

Preparing to clean

1.Press the Power button to turn on the printer, and then raise the printer cover. The cradle moves to the center of the printer.

2.Disconnect the power cord from the back of the printer.

3.Remove the print cartridges and place them on a piece of paper with the nozzle plate facing up.

1. Nozzle plate

Caution: Do not leave the print cartridges outside the printer for more than 30 minutes.

Cleaning instructions

1.Lightly moisten a cotton swab with distilled water and squeeze any excess water from the swab.

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Contents HP Deskjet 3840 series printer Terms Terms and conventionsHewlett-Packard company notices AcknowledgementsHP Deskjet 3840 series printer Users Guide Special features Getting started Printer featuresButtons and light Unfolding the paper trays Power button and lightPrint Cancel button Paper traysPage Tray Out tray Folding the paper trays Print cartridges Quality color photos Using print cartridgesReplacing print cartridges Everyday printingInk-backup mode Ink-backup mode outputExiting ink-backup mode USB Connecting to the printerEnhancing your photos Printing photosEnhancing your photos HP digital photography optionsDescription Maximum dpiSelect the Paper Type/Quality panel Photo print cartridgeStoring the photo print cartridge Using color settingsInstalling the photo print cartridge Using the photo print cartridgePrinting black-and-white photos Printing a black-and-white photoPrinting a color photo in black and white Storing and handling photo paper StorageHandling Guidelines Saving money when printing photosBorderless photos HP Everyday Photo PaperPrint Quality Best or Maximum dpi PrintingSmall photos with a white border Preparing to print Large photos with a white border Print Quality Best or Maximum dpi Printer software Printing other documentsMail Printing tipsPrint Quality Normal LettersPrint Quality Normal or Best DocumentsEnvelopes Brochures Print Quality Normal, Best, or Maximum dpi Greeting cardsTransparencies Print Quality Normal or Best Labels Index cards and other small media Booklets Printing Posters Iron-on transfers Preparing to print Print Quality Normal, Best, or Maximum dpi Save money Setting the print orderPrinting tips Save timePrinting collated copies Manual two-sided printing Page Printing multiple pages on a single sheet of paper Selecting a paper type Resizing a document Selecting a print qualityPage Print settings Setup dialog boxPrinter software Managing the printer Print dialog boxChoosing the printer Setting the printer as your default printerOpening the Print Status dialog box Using the Print Status dialog boxViewing and changing the status of a print job Checking the status of the printerPrinting from the computer desktop Page Maintenance Installing print cartridgesPrint cartridges Ink back-up mode Installation InstructionsPage Page Automatically cleaning print cartridges Aligning print cartridgesCalibrating color Cleaning instructions Manually cleaning print cartridgesGathering cleaning supplies Preparing to cleanPage Maintaining print cartridges Printing a testView estimated ink levels Removing ink from skin and clothingStoring print cartridges Using the HP Inkjet Toolbox Opening the HP Inkjet ToolboxHP Inkjet Toolbox panels Page Check the printer cable connection TroubleshootingPrinter is not printing Verify the following conditionsIf the printer still does not print Paper jamPrinter prints on multiple sheets at once Paper problemsOther paper problems Paper weightBlank pages print Print quality is poorStreaks and missing lines Print is fadedDocument is printed off-center or at an angle Printout does not reflect selected print settingsDocument is misprinted Text and images are misalignedColors are tinted or incorrect Check the printer settingsPhotos are not printing correctly Check the paper trayBorderless printing problems Part of the photograph is fadedFading occurs on the edges of a printout Fading occurs near the edges of a printout Streaks appear in a light portion of a printoutFor small photo paper with a tear-off tab Image is printed at an anglePrintout has an unwanted border For small photo paperPower light is flashing Document prints slowly If the In tray is loaded Error messagesComputer does not meet system requirements Out of paper messageAn error message appears while the Power light is flashing If you continue to have problemsReduction and elimination SpecificationsPrinter specifications Environmental statementEnergy consumption Print cartridge recoveryPage Paper supplies SuppliesHP Premium Plus Photo Paper with tear-off tab HP Tri-Fold Brochure Paper, MatteHP Premium Inkjet Transparency Film HP Premium Plus Photo Paper, GlossyHP Premium Photo Paper, Glossy HP Premium Plus Photo Paper, MatteHP Photo Paper, Glossy with tear-off tab HP Photo Paper, GlossyHP Premium High Gloss Film HP Premium Photo Paper, Glossy with tear-off tabHP Premium Photo Paper, Matte with tear-off tab HP Premium Photo Paper, MatteHP Advanced Photo Paper, Glossy with tear-off tab HP Everyday Photo Paper, Semi-gloss with tear-off tabHP Everyday Photo Paper, Semi-gloss HP Advanced Photo Paper, GlossyUSB cables Index Maintenance HP Deskjet 3840 series printer Users Guide HP Deskjet 3840 series printer Users Guide Cable part number
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