Troubleshooting

165

Computer firewall is blocking communication with the printer

Firewall settings may have stopped the printer from connecting to your computer.

If a firewall is installed on your computer, then do one of the following:

•Turn off your computer firewall.

•Update your computer firewall to the most recent version, and then allow the printer software to communicate over the network.

For more information on turning off and updating the firewall, see the help pages of your operating system.

Communication with printer lost when connected to Virtual Private Network (VPN)

You will lose your connection to a wireless printer on your local network when connected to most Virtual Private Networks (VPNs).

Most Virtual Private Networks allow computers to communicate with only the VPN and no other network at the same time. Disconnect from the VPN before installing the driver on the computer or before running the wireless setup on the computer.

To check if the computer is currently connected to a VPN, open your VPN Client software, and then check your VPN connections. If you do not have a VPN Client software installed, then check the connections manually using the Windows VPN Client.

If you would like to have the ability to connect to your local network and to a VPN at the same time, then request the system support person for the VPN to allow split tunneling. Be aware that some organizations will not allow split tunneling due to security or technical concerns.

If you want to connect only to a VPN, then the documents you want to print will not be printed until you have ended the VPN session. If you want to continue printing while connected to a VPN, then connect the printer to the computer using a USB cable. For more information, see the User’s Guide.

Wireless troubleshooting

•“Resetting the wireless settings to factory defaults” on page 165

•“Cannot print over wireless network” on page 166

•“Wireless print server not installed” on page 169

•“'Communication not available' message appears when printing wirelessly” on page 169

•“Resolving intermittent wireless communications issues” on page 171

Resetting the wireless settings to factory defaults

1From the printer control panel, navigate to:

> Setup > OK > Restore Factory Defaults > OK

2Press the up or down arrow button to scroll to Restore Network Settings, and then press OK .

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Lexmark PRO4000C, 90P3000 manual Wireless troubleshooting, Resetting the wireless settings to factory defaults
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PRO4000, 90P3000, PRO4000C specifications

The Lexmark PRO4000 and PRO4000C are innovative printers designed primarily for small to medium-sized businesses, offering a blend of high-quality printing and advanced technology. These models are well-known for their superior performance, efficiency, and the durability required in today’s fast-paced work environments.

One of the standout features of the Lexmark PRO4000 series is its speed. The printers can deliver up to 40 pages per minute for monochrome documents, ensuring that large print jobs are completed without unnecessary delays. The PRO4000C, being a color version, also performs impressively, providing vibrant color output while maintaining a fast print speed.

Image quality is paramount in any business setting, and both models excel in this area. They utilize Lexmark’s advanced print technology to produce sharp text and vivid graphics. With a resolution of up to 1200 x 1200 dpi, the PRO4000 and PRO4000C ensure that every document, from reports to marketing materials, is rendered with exceptional clarity and detail.

Another significant technology integrated into these printers is Lexmark’s Unison toner system. This system not only promotes consistent print quality but also simplifies the replacement process. The toners are designed to yield a high number of pages, reducing the frequency of changes and, consequently, the overall cost of ownership.

In terms of connectivity, both models provide a versatile range of options. They support USB, Ethernet, and wireless connectivity, enabling seamless integration into any office network. Additionally, mobile printing capabilities are supported, allowing users to print directly from smartphones and tablets, enhancing convenience and flexibility.

Security is another critical consideration for businesses, and Lexmark has incorporated robust features to protect sensitive information. These printers come equipped with secure print management solutions that require user authentication before jobs can be retrieved, ensuring that confidential documents remain private.

Moreover, the Lexmark PRO4000 series is designed with ease of use in mind. An intuitive touchscreen interface simplifies navigation through various settings and functionalities, allowing users to operate the printer effectively without extensive training.

In summary, the Lexmark PRO4000 and PRO4000C are exceptional printers that combine speed, quality, and advanced technologies to cater to the diverse needs of modern businesses. Their impressive features make them valuable assets for any office setting, promoting productivity and enhancing overall workflow efficiency.
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