5Replace the toner cartridge and close the top cover. Printing automatically resumes.

Note

• If it is difficult to reinstall the toner cartridge, make sure that the guide feed has been flipped back down into position.

In the paper exit area

1Open and close the top cover. The jammed paper is automatically ejected from the printer.

2Gently pull the paper out of the output tray.

If you do not see the jammed paper or if there is any resistance when you pull, stop and go to the next step.

3Open the rear cover.

4By pusing the fuser levers upwards, loosen the jammed paper. Then gently pull the paper straight out.

5Put the fuser levers to their original position and close the rear cover. Printing automatically resumes.

In the duplex unit area

If the duplex unit is not inserted correctly, paper jam may occur. Make sure that the duplex unit is inserted correctly.

In the ML-4550 and ML-4551N, the optional duplex unit should be installed.

Duplex jam 0

1Pull the duplex unit out of the printer.

2Locate the jammed paper and remove it.

3Insert the duplex unit into the slot.

4Open and close the top cover. The printer will resume printing.

9.4 <Troubleshooting>

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Samsung ML-4550, ML-4551ND manual Paper exit area, Duplex unit area, Duplex jam

ML-4550, ML-4551ND specifications

The Samsung ML-4551ND and ML-4550 are monochrome laser printers designed for efficient and high-quality printing in office environments. Known for their reliability and performance, these models cater to small to medium-sized businesses that require consistent output without compromising on quality.

One of the standout features of the ML-4551ND is its impressive print speed. Capable of delivering up to 45 pages per minute, this printer ensures that large print jobs are completed swiftly, optimizing workflow and productivity. The ML-4550, while slightly slower, still delivers a robust print speed of up to 40 pages per minute. Both printers can handle complex documents with ease, making them suitable for a variety of professional applications.

In terms of print resolution, the ML-4551ND and ML-4550 offer sharp and clear outputs with a maximum resolution of 1200 x 1200 dpi. This high-quality printing is ideal for producing text documents, presentations, and graphics with fine details. Additionally, Samsung's proprietary image processing technology enhances print quality and clarity, ensuring that every document meets professional standards.

The ML-4551ND and ML-4550 also feature a generous paper handling capacity, with a standard input tray that can hold up to 250 sheets of paper. For businesses with higher volume printing needs, the optional additional tray allows for an increase in capacity. Both models support various media types, including labels, envelopes, and card stock, adding versatility to meet diverse printing requirements.

Connectivity is another strong feature of the ML-4551ND and ML-4550. Equipped with USB and parallel ports, these printers can easily integrate into existing office networks. The ML-4551ND additionally provides built-in Ethernet networking capabilities, which allow multiple users to share the printer across a network, enhancing accessibility and convenience for teams.

Energy efficiency is also a key consideration with these models. The ML-4551ND and ML-4550 are designed with Eco Mode, which helps reduce toner and energy consumption during operation. This thoughtful design element not only supports sustainability efforts but also contributes to lower operating costs.

In summary, the Samsung ML-4551ND and ML-4550 are reliable and effective monochrome laser printers that provide businesses with high-speed printing, exceptional print quality, and flexible connectivity options. Their robust features and energy-efficient technologies make them a solid choice for organizations looking to enhance their printing capabilities while keeping costs under control.