•Turn off administrative access over wireless if possible. If you do this, you need to connect to the router with a wired Ethernet connection when you want to make configuration changes.

•Turn off remote administrative access over the Internet on your router, if possible. You can use Remote Desktop to make an encrypted connection to a computer running behind your router and make configuration changes from the local computer you are accessing over the Internet.

•To avoid accidentally connecting to another party's wireless network, turn off the setting to automatically connect to non-preferred networks. This is disabled by default in Windows XP.

Uninstall and reinstall the software

If your installation is incomplete, or if you connected the USB cable to the computer before prompted by the software installation screen, you might need to uninstall and then reinstall the software. Do not simply delete the device application files from your computer. Make sure to remove them properly using the uninstall utility provided when you installed the software that came with the device.

There are three methods to uninstall the software on a Windows computer, and one method to uninstall on a Macintosh computer.

To uninstall from a Windows computer, method 1

1.Disconnect the device from your computer. Do not connect it to your computer until after you have reinstalled the software.

2.Press the Power button to turn off the device.

3.On the Windows taskbar, click Start, select Programs or All Programs, select HP, select Officejet J6400 Series, and then click Uninstall.

4.Follow the onscreen instructions.

5.If you are asked whether you would like to remove shared files, click No.

Other programs that use these files might not work properly if the files are deleted.

6.Restart your computer.

7.To reinstall the software, insert the device Starter CD into your computer's CD- ROM drive, follow the onscreen instructions, and also see Install the software before connecting the device (recommended).

8.After the software is installed, connect the device to your computer.

9.Press the Power button to turn the device on.

After connecting and turning on the device, you might have to wait several minutes for all of the Plug and Play events to complete.

10.Follow the onscreen instructions.

When the software installation is complete, the HP Digital Imaging Monitor icon appears in the Windows system tray.

To uninstall from a Windows computer, method 2

NOTE: Use this method if Uninstall is not available in the Windows Start menu.

Uninstall and reinstall the software

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HP J6400 manual Uninstall and reinstall the software, To uninstall from a Windows computer, method
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J6400 specifications

The HP J6400 is a versatile and high-performance inkjet printer designed primarily for small to medium-sized businesses and professionals in need of quality printing solutions. Recognized for its reliability and efficiency, the HP J6400 incorporates several features and technologies that make it stand out in a competitive marketplace.

One of the main features of the HP J6400 is its ability to print in wide formats, with a maximum print width of up to 13 inches. This makes it ideal for creating posters, presentations, and other large documents that require a professional touch. The printer supports various media types, including glossy paper, broadsheet paper, and even CD/DVD labels, allowing users to express their creativity without limitations.

The J6400 utilizes HP's advanced thermal inkjet technology, which delivers sharp and vibrant prints with a maximum resolution of up to 4800 x 1200 optimized dpi. This technology ensures that text appears crisp and colors are vivid, making it suitable for both professional documents and high-quality photo prints. Additionally, the device is compatible with a range of HP’s high-capacity ink cartridges, enabling users to reduce printing costs significantly without sacrificing quality.

Another notable characteristic of the HP J6400 is its fast printing speed. It can produce black and white documents at speeds of up to 33 pages per minute, and color prints at speeds of up to 29 pages per minute. This efficiency is crucial for businesses that require quick turnaround times for their printing needs.

Moreover, the HP J6400 comes equipped with built-in networking capabilities, including Ethernet and USB connectivity. This allows multiple users to connect to the printer seamlessly, making it an excellent choice for collaborative work environments. Additionally, its user-friendly interface simplifies the printing process, enabling easy navigation through settings and adjustments.

In terms of design, the HP J6400 is compact and streamlined, ensuring it can fit comfortably in various office spaces without taking up too much room. Its sleek aesthetic also adds a professional look to any workspace.

Overall, the HP J6400 is a robust and reliable printing solution combining quality, speed, and versatility, making it an excellent investment for businesses and professionals looking to enhance their printing capabilities. With its advanced features and efficient technologies, it stands out as a practical choice for users demanding high-quality results in a fast-paced environment.
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