Chapter 7

•Other equipment, which uses the same phone line as the device, might be in use. For example, you cannot use the device for faxing if an extension phone is off the hook, or if you are using a computer dial-up modem to send an e-mail or access the Internet.

•Check to see if another process has caused an error. Check the display or your computer for an error message providing information about the problem and how to solve it. If there is an error, the device will not send or receive a fax until the error condition is resolved.

•The phone line connection might be noisy. Phone lines with poor sound quality (noise) can cause faxing problems. Check the sound quality of the phone line by plugging a phone into the telephone wall jack and listening for static or other noise. If you hear noise, turn Error Correction Mode (ECM) off and try faxing again.

For information about changing ECM, see the onscreen Help. If the problem persists, contact your telephone company.

•If you are using a digital subscriber line (DSL) service, make sure that you have a DSL filter connected or you will not be able to fax successfully. For more information, see Case B: Set up the device with DSL.

•Make sure the device is not connected to a telephone wall jack that is set up for digital phones. To check if your phone line is digital, connect a regular analog phone to the line and listen for a dial tone. If you do not hear a normal sounding dial tone, it might be a phone line set up for digital phones.

•If you are using either a private branch exchange (PBX) or an integrated services digital network (ISDN) converter/terminal adapter, make sure the device is connected to the correct port and the terminal adapter is set to the correct switch type for your country/region, if possible. For more information, see Case C: Set up the device with a PBX phone system or an ISDN line.

•If the device shares the same phone line with a DSL service, the DSL modem might not be properly grounded. If the DSL modem is not properly grounded, it can create noise on the phone line. Phone lines with poor sound quality (noise) can cause faxing problems. You can check the sound quality of the phone line by plugging a phone into the telephone wall jack and listening for static or other noise. If you hear noise, turn off your DSL modem and completely remove power for at least 15 minutes. Turn the DSL modem back on and listen to the dial tone again.

NOTE: You might notice static on the phone line again in the future. If the device stops sending and receiving faxes, repeat this process.

If the phone line is still noisy, contact your telephone company. For information on turning your DSL modem off, contact your DSL provider for support.

•If you are using a phone splitter, this can cause faxing problems. (A splitter is a two-cord connector that plugs into a telephone wall jack.) Try removing the splitter and connecting the device directly to the telephone wall jack.

106 Solve a problem

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HP 4500 manual Chapter
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4500 specifications

The HP 4500 series, including the 4504, 4505, 4502, 4500, and 4501 models, represent a significant advancement in the realm of printing technology. These devices are known for their versatility, efficiency, and ability to meet the demands of both small and large businesses.

One of the defining features of the HP 4500 series is its exceptional print quality. Utilizing HP's advanced ColorSphere toner technology, these printers deliver vibrant color prints with sharp text and detailed images. The resolution capabilities of up to 600 x 600 dpi ensure that documents appear professional and polished, making them ideal for business presentations, marketing materials, and everyday printing needs.

Speed is another hallmark of the HP 4500 series. With print speeds ranging from 20 to 28 pages per minute, depending on the specific model, these devices facilitate quick printing without compromising quality. The first page out time is notably swift, making them suitable for environments where time is of the essence.

The HP 4500 series also emphasizes energy efficiency and cost-effectiveness. Many models come equipped with HP's EcoSmart features, which optimize power consumption and reduce environmental impact. Additionally, the printers have high-yield toner options, reducing the frequency of cartridge changes and leading to lower operating costs for businesses.

Connectivity options abound, with most models offering USB, Ethernet, and wireless capabilities. This connectivity ensures seamless integration into any office environment, allowing multiple users to access the printer from various devices, including smartphones and tablets, through mobile printing technologies like Apple AirPrint and Google Cloud Print.

Security features in the HP 4500 series are robust, addressing the needs of businesses concerned about protecting sensitive information. This includes secure printing options that require user authentication before a document is printed, preventing unauthorized access and ensuring confidentiality.

In summary, the HP 4500 series, including the 4504, 4505, 4502, 4500, and 4501, stands out for its outstanding print quality, speed, energy efficiency, connectivity, and security features. These characteristics make them a superb choice for any business aiming to enhance its printing capabilities while keeping operational costs manageable. With a focus on user-friendly interfaces and reliable performance, the HP 4500 series continues to be a preferred solution for diverse printing needs in modern workplaces.
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