Chapter 9

Add hardware addresses to a wireless access point (WAP)

MAC filtering is a security feature in which a wireless access point (WAP) is configured with a list of MAC addresses (also called “hardware addresses”) of devices that are allowed to gain access to the network through the WAP. If the WAP does not have the hardware address of a device attempting to access the network, the WAP denies the device access to the network. If the WAP filters MAC addresses, then the device’s MAC address must be added to the WAP’s list of accepted MAC addresses.

•Print the network configuration page. For more information, see Understand the network configuration page.

•Open the WAP’s configuration utility, and add the device’s hardware address to the list of accepted MAC addresses.

Reset network configuration settings

If the device is still unable to communicate with the network, reset the device’s network settings.

•Press Setup. Press an arrow button to move to Network, and then press OK.

•Press an arrow button to move to Restore Network Defaults, and then press OK.

•Print the network configuration page and verify that the network settings have been reset. For more information, see Understand the network configuration page. By default, the network name (SSID) is “hpsetup” and the communication mode is “ad hoc.”

Solve photo (memory card) problems

If the following topics do not help, see Support and warranty for information about HP support.

NOTE: If you are starting a memory card operation from a computer, see the software Help for troubleshooting information.

•The device cannot read the memory card

•The device cannot read photos on the memory card

•The device prints half a page, then ejects the paper

The device cannot read the memory card

•Check the memory card

◦Make sure that the memory card is one of the supported types. For Compact Flash II - solid state memory only. For more information, see Insert a memory card.

◦Some memory cards have a switch that controls how they can be used. Make sure that the switch is set so that the memory card can be read.

166 Maintain and troubleshoot

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HP J6400 manual Solve photo memory card problems, Device cannot read the memory card, Reset network configuration settings
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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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