Samsung ML-1651N, ML-1650 Signs and Measures at Poor toner cartridge, Partially blank, Image

Page 47

Troubleshooting

4-5-4 Signs and Measures at Poor toner cartridge

 

 

 

Fault

Signs

Cause & Check

Solution

 

 

 

 

 

 

 

 

 

Light image and

• The printed image

1. If the image is light or unclean

1. All of 1, 2, 3 above-

 

partially blank

is light or unclean

and untidy printed image -

If it become better by shaking,

 

image

and untidy.

Shake the developer and

replace with a new developer

 

(The life is ended.)

 

then recheck.

after 50-100 sheets in the clos-

 

 

 

 

 

• Some part of the

(1)NG: Check the weight of the

ing state of the life span.

 

 

 

Digital Printer

 

image is not print-

developer

 

 

 

 

 

ed.

(2)OK: Lack of toner, so the life

 

 

 

 

Digital Printer

 

 

 

 

 

 

 

is nearly closed.

 

 

 

 

Digital Printer

 

 

 

 

 

 

 

• Periodically a noise

2. Some part of image is not

2. In case of 2-

 

 

 

Digital Printer

 

 

 

 

 

as "tick tick" occurs.

printed - Shake the develop-

If it becomes better after clean-

 

 

 

Digital Printer

 

 

er and then recheck.

ing the LSU window, then the

 

 

 

 

 

 

(1)NG: Check the weight of the

developer is normal.

 

 

 

 

 

 

developer and clean

(Because of foreign substance

 

 

 

 

 

 

the LSU window with a

on the LSU window, the image

 

 

 

 

 

 

cotton swab, then

has not been printed partly.)

 

 

 

 

 

 

recheck.

 

 

 

 

 

 

 

(2)OK: Lack of toner, so the life

 

 

 

 

 

 

 

is nearly closed.

 

 

 

 

 

 

 

3. Periodically a noise as "tick

3. In case of 3-

 

 

 

 

 

 

tick" occurs - Measure the

If the cycle of noise is about 2

 

 

 

 

 

 

cycle and the weight of the

seconds, the toner inside the

 

 

 

 

 

 

developer.

developer has been nearly

 

 

 

 

 

 

 

exhausted.( Purchase and

 

 

 

 

 

 

 

replace with a new developer

 

 

 

 

 

 

 

after using about 200 sheets at

 

 

 

 

 

 

 

the point of occurrence)

 

 

 

 

 

 

4. White vertical stripes on the

4. In case of 3-

 

 

 

 

 

 

whole screen or partly :

This is a phenomenon caused

 

 

 

 

 

 

Check the weight of the

by lack of toner, so replace with

 

 

 

 

 

 

developer.

a new developer.

 

 

 

 

 

 

Toner

• Toner is fallen on

1. Toner is fallen on the paper

1. If both ends of the OPC drum

 

Contamination

the papers periodi-

periodically.

are contaminated with toner:

 

 

 

 

 

cally.

(1)Check the cycle of the

Check the life of the developer.

 

 

 

 

 

 

falling of the toner.

 

 

 

 

 

 

• Contaminated with

(2)Check the appearance of

 

 

 

 

 

 

toner on prints part-

both ends of the developer

 

 

 

 

 

 

ly or over the whole

OPC drum.

 

 

 

 

 

 

surface.

 

 

 

 

 

 

 

 

2.The center of the printed mat-

2. Check whether it could be recy-

 

 

 

 

 

 

ter is contaminated with toner.

cled.

 

 

 

 

 

 

(1)Check whether foreign sub-

 

 

 

 

 

 

 

stances or toner are stuck

 

 

 

 

 

 

 

to the terminal (contact

 

 

 

 

 

 

 

point) of the developer.

 

 

 

 

 

 

 

(2)Check whether the state of

 

 

 

 

 

 

 

the terminal assembly is

 

 

 

 

 

 

 

normal.

 

 

 

 

 

 

 

 

3. If it cannot be recycled:

 

 

 

 

 

 

 

Replace the developer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Samsung Electronics

4-23

Page 46 Page 48
Image 47
Page 46 Page 48
Contents Laser Printer Version no This manual is stated and provided for service description Read each caution carefully Safety PrecautionsReleasing Plastic Latches Precautions on Disassembly and ReassemblyElectronic Scale Tools for TroubleshootingToner ML-1650 ML-1651N EngineController PaperNetwork ML-1650 ML-1651N EnvironmentWhenever servicing the machine, you must perform as follows General Precautions on DisassemblyReleasing Plastic Latches Transfer Roller Controller Board Pickup Assembly Main Cover MP Multi-Purpose Tray Exit AssemblyHvps board LSUSolenoid 10 FanDrive Assembly To remove the halogen lamp from the fuser assembly Fuser AssemblyTo remove the thermistor from the fuser assembly To remove the thermostat from the fuser assemblyGuide Feed & Erase Lamp To replace the pickup roller MPF Assembly and Miscellaneous on MPF AssemblyTo replace the nockup plate To replace the Paper Empty PE sensor To replace the pickup holder and the Adjust End MPEngine Board and Miscellaneous To replace the exit board To remove the transfer guide To replace the actuator feedCause and solution of the malfunction How to use DCUCause and solution of Bad image Cause and solution of the bad dischargeCode How to use DCUDCU Setup Self Diagnostic Mode Paper Path Layout Self Test ButtonDCU Panel ML-1650 Diagnostic Control Unit Quick ReferanceVertical White Line Cause and solution of Bad imageCheck and Cause Solution Vertical Black Line and BandBlack/White Spot Horizontal Black BandDark Image or a Black Light ImageBackground Uneven DensityGhost Satins on the Face Blank Page Print out Satins on Back2 JAM Cause and solution of the bad dischargeWrong Print Position 4 JAM 3 JAMPaper rolled in the fuser Multi-Feeding7 OPC All LEDs blinking Scan Error Cause and solution of the malfunctionAll LEDs blinking Fuser Error Paper Empty without indication Not function of the gear of the fuser due to melting awayPaper Empty Cover Open No lamp on when the cover is openDefective motor operation No PowerVertical Line Getting Curved Toner Cartridge Service Image Fault Signs Cause & Check Solution Light imageSigns and Measures at Poor toner cartridge Partially blankRecycled product Fault Signs Cause & Check Solution White Black spotFault Signs Cause & Check Solution Ghost & Image Printer is not working Cause and solutions of bad environment of the softwareUtilities program Abnormal Printing How to delete the data in the spool manager Spool ErrorExploded Views and Parts List Service Parts List Exploded Views and Parts List10-3 10-4 Cover Exploded View All Exploded Views and Parts ListFrame Exploded View Exit Exploded View Rack-MPF Exploded View Fuser Exploded View Drive Exploded View Pick-Up Exploded View Cassette Exploded View Video ControllerBlock Diagram Block DiagramSensor Engine Block DiagramVPS Connection Diagram
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Manual 179 pages 8.77 Kb

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.
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