Condition

Suggested solutions

 

 

Vertical

If marks repeatedly appear on the printed side of

repetitive

the page at even intervals:

defects

The toner cartridge may be damaged. If a

AaBbC c

 

repetitive mark occurs on the page, print a

 

cleaning sheet several times to clean the

AaBbC c

 

cartridge; see page 8.3. After the printout, if

AaBbC c

 

you still have the same problems, install a new

AaBbC c

toner cartridge. See page 8.5.

AaBbC c

Parts of the printer may have toner on them. If

 

the defects occur on the back of the page, the

 

 

 

 

problem will likely correct itself after a few

 

 

more pages.

The fusing assembly may be damaged. Contact a service representative.

Background

Background scatter results from bits of toner

scatter

distributed on the printed page.

A

The paper may be too damp. Try printing with

 

a different batch of paper. Do not open

 

packages of paper until necessary so that the

 

paper does not absorb too much moisture.

If background scatter occurs on an envelope,

 

change the printing layout to avoid printing

 

 

over areas that have overlapping seams on

 

 

the reverse side. Printing on seams can cause

 

 

problems.

If background scatter covers the entire surface area of a printed page, adjust the print resolution through your software application or via the printer properties window.

Misformed

If characters are improperly formed and

characters

 

producing hollowed images, the paper stock

 

 

 

 

may be too slick. Try a different paper. See

 

 

 

 

page 5.3.

 

 

 

If characters are improperly formed and

 

 

 

 

producing a wavy effect, the scanner unit may

 

 

 

 

need service. Verify that it also occurs on a

 

 

 

 

demo page (see page 2.8). For service,

 

 

 

 

contact a service representative.

 

 

 

 

 

Page skew

Ensure that the paper is loaded properly.

Aa

BbCc

• Check the paper type and quality. See page

5.2.

 

• Ensure that the paper or other media is loaded

AaBbCc

correctly and the guides are not too tight or

AaBbCc

too loose against the paper stack.

AaBbCc

 

AaBbCc

 

Condition

 

Suggested solutions

 

 

 

Curl or wave

Ensure that the paper is loaded properly.

 

Check the type and quality. Both high

 

 

temperature and humidity can cause paper

 

 

curl. See page 5.2.

 

Turn over the stack of paper in the tray. Also

 

 

try rotating the paper 180° in the tray.

 

Try printing to the rear cover (face-up).

 

 

 

Wrinkles or

Ensure that the paper is loaded properly.

creases

Check the paper type and quality. See page

 

 

5.2.

 

• Open the rear cover and try printing to the rear

 

 

cover (face-up).

Turn over the stack of paper in the tray. Also try rotating the paper 180° in the tray.

Back of

The transfer roller may be dirty. See page 8.1.

printouts are

Check for leaking toner. Clean the inside of

dirty

 

the printer.

Solid color or

• The toner cartridge may not be installed

Black pages

properly. Remove the cartridge and reinsert.

A

The toner cartridge may be defective and

 

need replacing. Install a new toner cartridge.

The printer may require repair. Contact a

 

service representative.

Loose toner

Clean the inside of the printer.

 

 

Check the paper type and quality. See page

 

 

 

 

 

5.2.

Install a new toner cartridge. See page 8.5.

If the problem persists, the printer may require

repair. Contact a service representative.

9.12 <Troubleshooting>

Page 58
Image 58
Samsung ML-4550 Condition Suggested solutions Vertical, Repetitive, Defects, Scatter, Misformed, Characters, Skew, Creases

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.