HP 3748 manual An error message appears while the Power light is flashing

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HP Deskjet 3740 series printer

2.Slide the paper guide so that it fits firmly against the edge of the paper.

3.Click Continue to resume printing.

If the paper tray is empty

1.Load paper in the paper tray.

2.Push the paper forward until it stops.

3.Slide the paper guide so that it fits firmly against the edge of the paper.

4.Click Continue to resume printing.

An error message appears while the Power light is flashing

Read the error message explaining the problem and its solution. For more information, see Power light is flashing.

The error message 'there was an error writing to USB port' appears

The printer might not be receiving correct data from another USB device or USB hub. Connect the printer directly to the USB port on the computer.

The error message 'there was an error writing to LPT1' appears

The printer is connected to the computer with a USB cable but the cable may not have been attached before installing the software.

Uninstall, and then reinstall, the software.

The error message 'two-way communication cannot be established' or 'printer not responding' appears

The printer might not be able to communicate with the computer if the USB cable is too long.

If you receive this error message, ensure the USB cable is not greater than five meters (approximately 16 feet, 5 inches) in length. Connect the printer directly to the USB port on the computer and not to a USB hub.

10.9 Power light is flashing

•If the Power light is on, the printer is either printing or ready to print.

•If the Power light is off, the printer is off.

•If the Power light is flashing, see below.

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Contents HP Deskjet 3740 series printer Special features Printer features Getting startedPower button and light Paper tray Unfolding the paper trayUsing the paper tray Print cartridgesInk-backup mode Ink-backup mode outputReplacing print cartridges Exiting ink-backup mode Connecting to the printer USBPrinting photos Enhancing your photosPhotoREt Enhancing your photosUsing the HP digital photography options dialog box HP digital photography optionsOpening the HP digital photography options dialog box Maximum dpi Exif Print Printing black-and-white photosPrinting a black-and-white photo Printing a color photo in black-and-whiteStoring and handling photo paper StorageClick Print in grayscale Saving money when printing photos Large photos with a white borderSmall photos with a white border PrintingOrientation Portrait or Landscape Borderless photos Preparing to print Page Printing other documents MailPrinting tips Printer softwareLetters Paper type Plain paperDocuments Envelopes Labels Type is Plain paperBrochures Greeting cards Transparencies Index cards and other small media Iron-on transfers Type is Plain paper Print quality Normal or Best Orientation Mirror imagePrinting tips Printing shortcutsSave time Save moneyFast/economical printing General everyday printingUse General everyday printing to print quickly Using a print task quick set Print task quick setsSetting the printer default settings Creating a print task quick setDeleting a print task quick set Setting the page order Print preview Selecting a paper type Setting a custom paper size Selecting a print qualityDefining a custom paper size Page Printer software Printer Properties dialog boxPrinter Preferences dialog box Opening the Printer Properties dialog boxUsing Whats This? help Whats This? helpDevice Status window To close the Device Status window, click Close window Maintenance Installing print cartridgesPrint cartridges Selection numbersInstallation instructions Ink back-up modePage Automatically cleaning print cartridges Click Clean the Print CartridgesAligning print cartridges Click Align the PrinterManually cleaning print cartridges Gathering cleaning suppliesPreparing to clean Cleaning instructionsPage Printing a test View estimated ink levelsRemoving ink from skin and clothing Maintaining print cartridgesMaintaining the printer body Printer toolboxTroubleshooting Check the power lightPrinter is not printing Verify the followingPaper jam If the printer does not turn onIf the printer still does not print Paper problems Other paper problemsPaper weight Printer prints on multiple sheets at oncePrint quality is poor Streaks and missing linesPrint is faded Blank pages printDocument is misprinted Photos are not printing correctlyBorderless printing problems Check the printer propertiesEdge of the photograph is faded Print quality BestImage is printed at an angle Printout has an unwanted borderFor small photo paper Error messages Out of paper messageFor small photo paper with a tear-off tab If the paper tray is loadedPower light is flashing An error message appears while the Power light is flashingError message there was an error writing to LPT1 appears If the paper tray is emptyIf an error message appears If no error message appearsDocument prints slowly What the flashing light meansIf you continue to have problems Supplies Paper suppliesHP Tri-Fold Brochure Paper, Matte HP Premium Inkjet Transparency FilmHP Premium Plus Photo Paper, Glossy HP Premium Plus Photo Paper with tear-off tabHP Premium Plus Photo Paper, Matte HP Photo Paper, Glossy with tear-off tabHP Photo Paper, Glossy HP Premium Photo Paper, GlossyHP Premium Photo Paper, Glossy with tear-off tab HP Premium Photo Paper, Matte with tear-off tabHP Premium Photo Paper, Matte HP Premium High Gloss FilmHP Everyday Photo Paper, Semi-gloss with tear-off tab HP Everyday Photo Paper, Semi-glossHP Advanced Photo Paper, Glossy HP Advanced Photo Paper, Glossy with tear-off tabUSB cables Specifications Printer specificationsEnvironmental statement Reduction and eliminationPrint cartridge recovery Energy consumptionPage Terms and conventions Hewlett-Packard company noticesAcknowledgements TermsHP Deskjet 3740 series printer