Condition Suggested solutions Vertical lines

Condition		Suggested solutions
Vertical lines	If black vertical streaks appear on the page:
	•	The drum inside the toner cartridge has
		probably been scratched. Install a new toner
		cartridge. See page 8.3.
	If white vertical streaks appear on the page:
	•	The surface of the LSU part inside the printer
		may be dirty. Clean the LSU. See page 8.1.
Gray	If the amount of background shading becomes
background	unacceptable, the procedures below may fix the
	problem.
	•	Change to lighter weight pages. See page 4.3.
	•	Check the printer’s environment; low humidity
		(lower than 20% RH) or high humidity (higher
		than 80% RH) conditions can increase the
		amount of background shading.
	•	Remove the old toner cartridge and install a
		new one. See page 8.3.
Toner smear	•	Clean the inside of the printer. See page 8.1.
	•	Check the paper type and quality. See page
		4.2.
	•	Remove the toner cartridge and install a new
		one. See page 8.3.

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
		repetitive mark occurs on the page, install a
		repetitive mark occurs on the page, install a
		new toner cartridge. See page 8.3.
	•	Parts of the printer may have toner on them. If
	•	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.
		Contact a service representative.

Condition	Suggested solutions

Background	Background scatter results from bits of toner
scatter	distributed on the printed page.

• 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 4.3.

Page skew	•	Ensure that the paper is loaded properly.
	•	Check the paper type and quality. See page
		4.2.
	•	Ensure that the paper is loaded correctly and
		the adjustable guides are not too tight or too
		loose against the paper stack.


Curl or wave	•	Ensure that the paper is loaded properly.

•Check the paper type and quality. Both high temperature and humidity can cause paper

curl. See page 4.2.

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

9.8 <Troubleshooting>

ML-D2850B, ML-D2850A, ML-S2850A specifications

The Samsung ML-S2850A, ML-D2850A, and ML-D2850B are high-performance toner cartridges designed to work seamlessly with Samsung's range of printers. These cartridges are instrumental in delivering crisp, vibrant prints that maintain the quality and reliability that professionals and businesses expect.

The ML-S2850A is a standard toner cartridge that provides exceptional print quality, delivering sharp text and clear images. It is designed for maximum efficiency, featuring an estimated page yield of up to 3,000 pages, making it suitable for moderate printing needs. The advanced toner technology used in this cartridge ensures that prints are produced quickly without sacrificing quality.

In contrast, the ML-D2850A and ML-D2850B cartridges offer high-yield options for users with more extensive printing requirements. The ML-D2850A cartridge also provides an impressive page yield of approximately 5,000 pages, while the ML-D2850B goes even further with an estimated yield of up to 10,000 pages. This makes the ML-D2850A and ML-D2850B ideal for businesses or individuals who require consistent and reliable printing without frequent interruptions for replacement.

One of the key characteristics of these cartridges is Samsung’s advanced polymerized toner technology, which enables finer toner particles. This results in more precise and vivid prints, enhancing the overall quality of the outputs. Additionally, the cartridges are designed with easy installation in mind, ensuring that users can replace them without hassle, which minimizes downtime.

Furthermore, these cartridges come equipped with smart technology features that help to monitor toner levels, providing alerts when it is time to replace them. This proactive approach to toner management prevents unexpected outages and helps streamline printing operations, particularly in busy office environments.

The environmental aspect of these toner cartridges is also noteworthy. Samsung is committed to sustainability, and these toner cartridges are designed with recyclable materials, aligning with eco-friendly initiatives.

In summary, the Samsung ML-S2850A, ML-D2850A, and ML-D2850B toner cartridges offer a combination of high yield, exceptional print quality, and user-friendly features. They cater to varying printing needs, ensuring that both individuals and businesses can find a suitable option. The advanced technology and design not only enhance the printing experience but also contribute to sustainable printing practices.

Samsung ML-D2850B Condition Suggested solutions Vertical lines, Gray, Background, Toner smear

Models: ML-D2850B ML-D2850A ML-S2850A

Condition

Suggested solutions

Vertical lines

Gray

background

problem.

Toner smear

Vertical

repetitive

defects

Misformed

characters

Page skew

Curl or wave

ML-D2850B, ML-D2850A, ML-S2850A specifications