Troubleshooting

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ELIMINATE NETWORK CONGESTION

If a wireless network is too busy, then the computer and printer may have difficulty communicating with each other. Some causes of wireless network congestion can include:

Transferring large files across the network

Networked games

Peertopeer file swapping applications

Streaming video

Too many computers on the wireless network at once

ELIMINATE SOURCES OF INTERFERENCE

Common household items can potentially disrupt wireless network communications. Cordless phones (but not cellular phones), microwave ovens, baby monitors, almost any kitchen appliance, wireless surveillance equipment, nearby wireless networks, and any appliance containing a motor can disrupt wireless network communications.

Try turning on any potential sources of interference and see if it causes the problem. If it does, then separate your wireless network from the device.

CHANGE THE CHANNEL THE ACCESS POINT USES

You can sometimes eliminate interference from unknown sources by changing the channel your access point uses to broadcast. There are three distinct channels on a router. See the documentation that came with your router to determine which three apply. Other channels are offered as options, but these overlap. If the router is configured to use the default settings, then change the channel setting to use a different distinct channel. If you are not sure how to change the channel, then see the documentation that came with your access point.

CONFIGURE THE ACCESS POINT WITH A UNIQUE SSID

Many wireless networks use the SSID that the router was originally configured by the manufacturer to use. Using the default SSID can cause problems when more than one network is operating in the same area with the same SSID. The printer or computer may attempt to attach to the wrong network, although it will appear to be trying to connect to the correct network.

To avoid this type of interference, change the SSID on your access point from the default. If you are not sure how to change the SSID, then see the documentation that came with your access point.

Note: You must change the SSID on all of the other devices that access your wireless network if you change the SSID on the access point.

ASSIGN STATIC IP ADDRESSES TO ALL DEVICES IN THE NETWORK

Most wireless networks use a DHCP server (Dynamic Host Configuration Protocol) built in to the wireless router to assign IP addresses to clients on the wireless network. DHCP addresses are assigned when they are needed, as when a new device is added to the wireless network or when it is powered on. Wireless devices must send a request to the router, and receive an IP address in response so they can function on the network. Because the wireless router performs many other tasks besides assigning addresses, it sometimes does not respond quickly enough with an address. The requesting device sometimes gives up before it receives an address.

Try assigning static IP addresses to the devices in your network to resolve this issue.

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Lexmark PRO4000C, 90P3000 manual Troubleshooting 172

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.