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Samsung ML-1650, ML-1651N specifications Self Test Button, Paper Path Layout

Models: ML-1650 ML-1651N

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Troubleshooting

13THV(+) TRIGGER. ALL HV :

All high voltage output by each HV terminal and LSU and the fan is in operation. In this mode, electronic resistance of transfer roller and high voltage is detected.

14+7P Clutch Test :

Same method of the code ‘06’.

15Fan Test :

Indicates the function of the fan, same method of the code ‘06’.

16Paper size Sensor Test :

Cassette Sensor 1 ON/OFF	1st LED ON/OFF
Cassette Sensor 2 ON/OFF	2nd LED ON/OFF
Cassette Sensor 3 ON/OFF	3rd LED ON/OFF
Increment DCU Code No. (00,MAIN MOTOR TEST)
Decrement DCU Code No. (15, FAN TEST)

17SMD Test :

This function is for a manufacturing process. You can test all diagnostic Codes(0~06). When you push the ‘Enter’ button, the main motor runs (Diagnostic Code 00).

If you push the ‘up’ botton, the current diagnostic Code stops, and the next diagnostic Code starts.

4-1-4 Self Test Button

If the Self-Test button pressed, vertical lines are printed.

Turn the power on while pressing this button, '89' shows in the DCU and the printer is warming up. After warming-up the printer is in READY Mode, and '88' shows in the DCU. In this mode, without any detection, the printer begins printing(trial printing and data from the PC). It is convenient to use this mode when the engine malfunction is detected in the control board.

4-1-5 Paper Path Layout

FACE UP

EXIT2

OUT BIN FULL SEN	FACE DOWN
LSU		CARTRIDGE
		CARTRIDGE
FUSER
	CR	PTL	FEED SEN
H/R	CR	DR	FEED SEN
		DR
		SR		MPF
EXIT1		SR	IDLE
EXIT1	OPC		IDLE
	OPC

EXIT SEN

Pr/R	TR	FEED

PICK UP

EMPTY SEN

CASSETTE

SCF

4-4	Samsung Electronics

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Samsung ML-1650, ML-1651N specifications Self Test Button, Paper Path Layout

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 ScaleML-1650 ML-1651N Engine ControllerPaper TonerML-1650 ML-1651N Environment NetworkReleasing Plastic Latches General Precautions on DisassemblyWhenever servicing the machine, you must perform as follows Transfer Roller Controller Board Pickup Assembly Main Cover Exit Assembly MP Multi-Purpose TrayLSU Hvps board10 Fan SolenoidDrive Assembly Fuser Assembly To remove the thermistor from the fuser assemblyTo remove the thermostat from the fuser assembly To remove the halogen lamp from the fuser assemblyGuide Feed & Erase Lamp To replace the nockup plate MPF Assembly and Miscellaneous on MPF AssemblyTo replace the pickup roller 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 guideHow to use DCU Cause and solution of Bad imageCause and solution of the bad discharge Cause and solution of the malfunctionDCU Setup How to use DCUCode Self Diagnostic Mode Self Test Button Paper Path LayoutML-1650 Diagnostic Control Unit Quick Referance DCU PanelCause and solution of Bad image Check and Cause SolutionVertical Black Line and Band 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 outWrong Print Position Cause and solution of the bad discharge2 JAM 3 JAM 4 JAMMulti-Feeding Paper rolled in the fuser7 OPC All LEDs blinking Fuser Error Cause and solution of the malfunctionAll LEDs blinking Scan Error Paper Empty Not function of the gear of the fuser due to melting awayPaper Empty without indication No lamp on when the cover is open Cover OpenNo Power Defective motor operationVertical Line Getting Curved Toner Cartridge Service Fault Signs Cause & Check Solution Light image Signs and Measures at Poor toner cartridgePartially blank 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