Samsung ML-1650, ML-1651N specifications How to use DCU, DCU Setup, Code

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Troubleshooting

4-1 How to use DCU

4-1-1 DCU Setup

You can examine the malfunction of the printer. To perform DCU, open the front discharge cover and leave the connect the harness wire(10 pin/4 pin) to the CN10(4 pin) of the Main control board.

4-1-2 Code

Connect DCU to the printer and turn the power on. It show 7 LED on the panel and each code tells the function of the printer.

Normal Code

While printing or warming up, it indicate the position of the paper

61

Warm up

The printer is on, the cover is open or close.

00-05

Ready(kind of paper)

The printer is ready, the paper is detected when the first paper is printed.

 

 

00: Legal ,01: Letter ,02: A4 ,03: EXEC ,04: B5 ,05: Folio, 06: A5/A6

20, 21, 22

Print Start

The engine controller received the print order from the video controller.

 

 

20: 1st, 21: MP, 22: SCF

30

Feed Sensor On

The paper is passing out of the Feed Sensor.

40

Feed Sensor off

The paper has passed out of the Feed Sensor.

50

Paper Out

The paper has passed out of Exit Sensor.

69

Sleep Mode

The fuser power turned off to minimize the power consumption.

 

 

 

Error Code

When detecting the malfunction, the printing is stopped to indicate error code.

60, 62, 68

Fuser Error

The error in the fuser occurred. There is a short circuit in the thermistor and the

 

 

thermostat while printing, Low Temperature Error occurs.

 

 

 

 

 

• 60: Open Fuser Error

 

 

• 62: Low Heat Error

 

 

• 68: Over Heat Error

64

Cover Open

The Printer Cover is open.

65

CRU Error

The Toner Cartridge not installed,

70

No Paper

No paper in the paper cassette.

71

Paper Jam 0

The front part of paper is jammed between pickup unit and Feed sensor.

72

Paper Jam 1

The front part of paper is jammed between the Discharge sensor and Feed sensor.

73

Paper Jam 2

The front part of paper is jammed just after passing through the discharge sensor.

76

Out Bin Full

The Out bin is filled with paper.

95

LSU Not Ready

LSU Scanner Motor not ready or Hsync signal not output.

 

 

 

4-2

Samsung Electronics

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Contents Laser Printer Version no This manual is stated and provided for service description Safety Precautions Read each caution carefullyPrecautions on Disassembly and Reassembly Releasing Plastic LatchesTools for Troubleshooting Electronic ScalePaper ML-1650 ML-1651N EngineController TonerML-1650 ML-1651N Environment NetworkWhenever servicing the machine, you must perform as follows General Precautions on DisassemblyReleasing Plastic Latches Transfer Roller Controller Board Pickup Assembly Main Cover Exit Assembly MP Multi-Purpose TrayLSU Hvps board10 Fan SolenoidDrive Assembly To remove the thermostat from the fuser assembly Fuser AssemblyTo remove the thermistor from the fuser assembly To remove the halogen lamp 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 pickup holder and the Adjust End MP To replace the Paper Empty PE sensorEngine Board and Miscellaneous To replace the exit board To replace the actuator feed To remove the transfer guideCause and solution of the bad discharge How to use DCUCause and solution of Bad image Cause and solution of the malfunctionCode How to use DCUDCU Setup Self Diagnostic Mode Self Test Button Paper Path LayoutML-1650 Diagnostic Control Unit Quick Referance DCU PanelVertical Black Line and Band Cause and solution of Bad imageCheck and Cause Solution Vertical White LineHorizontal Black Band Black/White SpotLight Image Dark Image or a BlackUneven Density BackgroundGhost Satins on the Face Satins on Back Blank Page Print out2 JAM Cause and solution of the bad dischargeWrong Print Position 3 JAM 4 JAMMulti-Feeding Paper rolled in the fuser7 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 No lamp on when the cover is open Cover OpenNo Power Defective motor operationVertical Line Getting Curved Toner Cartridge Service Partially blank Fault Signs Cause & Check Solution Light imageSigns and Measures at Poor toner cartridge ImageFault Signs Cause & Check Solution White Black spot Recycled productFault Signs Cause & Check Solution Ghost & Image Cause and solutions of bad environment of the software Printer is not workingUtilities program Abnormal Printing Spool Error How to delete the data in the spool managerExploded Views and Parts List Exploded Views and Parts List Service Parts List10-3 10-4 All Exploded Views and Parts List Cover Exploded ViewFrame Exploded View Exit Exploded View Rack-MPF Exploded View Fuser Exploded View Drive Exploded View Pick-Up Exploded View Cassette Exploded View Block Diagram Video ControllerBlock DiagramEngine Block Diagram SensorConnection Diagram VPS
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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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