Troubleshooting

 

 

Fault

Signs

Cause & Check

Solution

 

 

 

 

 

 

 

 

White Black spot

• Light or dark black

1. If light or dark periodical black

1. In case of 1 above -

 

 

 

 

dots on the image

dots occur, this is because the

Run OPC Cleaning Mode Print

 

 

Digital Printer

 

occur periodically.

developer rollers are contami-

4-5 times repeatedly to remove.

 

 

 

 

nated with foreign substance

Especially check foreign sub-

 

 

Digital Printer

 

 

 

 

 

• White spots occur

or paper particles.

stance on the OPC surface, then

 

 

Digital Printer

 

in the image period-

(1)38.5mm interval : Charged

remove them with a clean gauze

 

 

Digital Printer

 

ically.

roller

moistened with IPA(Isopropyl

 

 

Digital Printer

 

 

(2)96mm interval : OPC cycle

Alcohol) not to damage OPC if

 

 

 

 

 

necessary.

 

 

 

 

 

 

 

 

 

 

 

2. If white spots occur in a black

Never use usual alcohol.

 

 

 

 

 

 

 

 

 

 

2. In case of 2

 

 

 

 

 

image at intervals of 96mm, or

 

 

 

 

 

If they are not disappeared by

 

 

 

 

 

black spots occur elsewhere,

 

 

 

 

 

running OPC Cleaning Mode

 

 

 

 

 

the OPC drum is damaged or

 

 

 

 

 

Print 4-5 times.

 

 

 

 

 

foreign substance is stuck to

 

 

 

 

 

: at intervals of 38.5mm - Replace

 

 

 

 

 

the surface.

 

 

 

 

 

the developer.

 

 

 

 

 

 

 

 

 

 

 

 

: at intervals of 96mm - Remove

 

 

 

 

 

 

foreign substance.

 

 

 

 

 

 

: Broken image - Replace the

 

 

 

 

 

 

developer according to care-

 

 

 

 

 

 

lessness.

 

 

 

 

 

3. If a black and white or graphic

3. In case of 3 - Exchange the

 

 

 

 

 

image is partially broken at

transfer roller because the life of

 

 

 

 

 

irregular intervals, the transfer

the transfer roller in use has been

 

 

 

 

 

roller's life has been expired or

expired. (Check the transfer volt-

 

 

 

 

 

the transfer voltage is abnor-

age and readjust if different.)

 

 

 

 

 

mal.

 

 

 

 

 

 

 

 

 

Recycled product

• Poor appearance of

1. Poor appearance of the devel-

1. In case of 1 -

 

 

 

 

the developer.

oper.

(1)If there is an evidence of disas-

 

 

 

 

 

(1)Check the damage to label

sembling the developer.

 

 

 

 

• Unclean and rough

and whether different materi-

(2)If materials other than normal

 

 

 

 

printouts.

als are used.

parts of the developer are

 

 

 

 

 

(2)Check the appearance of

added or substituted.

 

 

 

 

• Bad background in

parts of the developer, such

 

 

 

 

 

the image.

as frame, hopper.

 

 

 

 

 

 

2. Unclean and rough printouts.

2. In case of 2 - If there are any

 

 

 

 

 

(1)Check whether foreign sub-

abnormals in connection with the

 

 

 

 

 

stance or toner are stuck to

situation of 1.

 

 

 

 

 

the terminal (contact point) of

(1)It occurs when the developer

 

 

 

 

 

the developer.

is recycled over 2 times.

 

 

 

 

 

(2)Check whether the state of

(2)If toner nearly being expired

 

 

 

 

 

the terminal assembly is nor-

are collected to use, it is

 

 

 

 

 

mal.

judged as the recycled devel-

 

 

 

 

 

 

oper.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-24

Samsung Electronics

Page 48
Image 48
Samsung ML-1650, ML-1651N specifications Fault Signs Cause & Check Solution White Black spot, Recycled product

ML-1650, ML-1651N specifications

The Samsung ML-1651N and ML-1650 are reliable monochrome laser printers designed for small to medium-sized businesses and home offices. These printers offer a blend of performance, efficiency, and affordability, making them suitable for various printing needs.

One of the standout features of both models is their print speed. The ML-1651N boasts a speed of up to 22 pages per minute, while the ML-1650 offers a slightly lower speed but still impressive for standard office tasks. This fast output is complemented by a first page print time of approximately 8.5 seconds, ensuring that users can quickly produce documents without unnecessary delays.

In terms of print quality, both printers deliver sharp, clear black text and detailed graphics, thanks to a print resolution of up to 1200 x 1200 dpi. This high resolution is essential for producing professional-looking documents, which is crucial in a business environment.

The Samsung ML-1651N and ML-1650 are equipped with a 250-sheet input tray, accommodating various paper sizes and types. Additionally, both printers support manual duplex printing, allowing users to save paper by printing on both sides of the page. The ML-1651N also features a built-in network interface, providing easy connectivity for multiple users on a local network. This is particularly beneficial for businesses where collaboration and document sharing are essential.

Another noteworthy characteristic is their energy efficiency. Both models comply with Energy Star standards, reducing electricity consumption and helping organizations lower their operational costs. The Eco Mode feature further enhances sustainability by optimizing power usage during printing tasks.

The compact size of the ML-1651N and ML-1650 makes them suitable for smaller workspaces where printer footprint is a consideration. Despite their size, they have a robust build quality, ensuring longevity and reliability in daily use.

Lastly, both models are compatible with various operating systems, including Windows and Mac, ensuring versatility in different computing environments. With their blend of speed, efficiency, and quality, the Samsung ML-1651N and ML-1650 remain solid contenders in the monochrome laser printer market. They are ideal choices for users seeking reliable, cost-effective solutions for their printing requirements.