Samsung ML-1200, ML-1210 specifications Self Diagnostic Mode

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Troubleshooting

4-1-3 Self Diagnostic Mode

If Error code occurs due to malfunction of the printer, perform Self Diagnostic Mode to solve the problem.

The printer works only in the self-test mode to solve the malfunction problem.

To enter the self-test mode, turn the power on pressing the buttons of [Down], [Shift] and [Stop] at the same time. Release the button within 2 or 3 seconds if 78 shows in the DCU. If 00 shows in the DCU, press the button [Up] or [Shift] to select the self+test , and press the button of [Enter] to operate. To stop, press the button of [shift] and [Enter] together.

00Main Motor Operating System Only the main motor is in operation.

01

Main High Voltage On(THV-)

 

 

-1550 voltage output by MHV terminal.

Caution : High voltage probe should be used.

 

 

 

02

Transfer High Voltage(-)On(THV-)

 

 

-1300 voltage output by MHV terminal.

Caution : High voltage probe should be used.

 

 

 

03

Transfer High Voltage (+)Reference on (THV +)

 

 

1300 voltage output by MHV terminal.

Caution : High voltage probe should be used.

 

 

04

DEV/supply High Voltage : DEV/Supply High Voltage Test.

 

The left one of the three LEDs in the self-test panel is on when DEV high voltage Supply high voltage output

 

by each HV terminal. Press the [Up] button to switch the voltage. The middle and right one of the three LEDs

 

are on and -530 voltage output by DEV HV terminal.

Caution : High voltage probe should be used.

 

 

 

05

LSU Operating System

 

 

The scanning motor of LSU is in operation, the right LED of the three buttons on. Press the [Up] button to

 

Check LD. LD is functioning and the middle button is on. If the LD is normal, all LEDs are on.

06Pickup clutch on

The Solenoid in the printer is in operation. To stop the operation, Press the button [shift] and [Enter] together.

07

Pempty/PWIDTH/New CRU Sensor Test : Pempty/PWIDTH.HEW CRU sensor test.

 

If activate the Actuator of the PEMPTY/PWIDTH Sensor, the left and right of the three LEDs are on.

 

If you install new toner Cartridge in this mode, the right LED is on.

08Feed & Exit Sensor Test

Test the Feed sensor and Discharge sensor in the same way as '06'.

09Cover Open Sensor Test The same way as code '06'.

10Fuser Test

If the [Enter] button pressed, the right LED is on and temperature of the fuser is up to READY Mode. If the [Up] button pressed, the middle LED is on and temperature of the fuser is up to Printing Mode.

If you press the button once more, the left LED is on and temperature of the fuser is up to overheat Mode.

11Hot Burn Test

If the [enter] button pressed, the printer is continuously printing without detection. Turn the power off to stop operation.

12.Cleaning Mode Print Mode

Print the paper to clean the OPC Drum in the Cartridge.

Samsung Electronics

4-3

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Contents Laser Printer Version no This manual is stated and provided for service description Safety Precautions Precautions on Disassembly and ReassemblySafety Precautions Replacing PrecautionsTools for Troubleshooting Electronic ScaleML-1210 ML-1220M ML-1250 Engine ControllerPaper TonerFront Cover Cover AssemblyOther Covers LED Panel PBA LSULaser Scanning UnitMotor Assembly Transfer RollerFuser Assembly Hvps BoardThermostat and Halogen Lamp Smps Board Main Board and Sensor Board How 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 LayoutPTL Test Fan TestCause 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 Terminal of the supply roller Satins on the FaceDescription Digital Printer 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 Precautions on Safe-keeping of Toner Cartridge Toner Cartridge ServiceService for the Life of Toner Cartridge 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 ListExploded Views and Parts List Front Assembly No DescriptionEngine/Frame Lower Assembly 15-2 15-1 14-2 Shield Engine Unit Assembly RX Drive Assembly Plate-Upper Unit AssemblyBlock Diagram Block DiagramGDIBlock DiagramPCL PanelConnection Diagram Connection DiagramGDIConnection DiagramPCL LSURepair Manual Diagram 1250 Connection Diagram GDI Connection DiagramML-1210/ML-1220MPCL Connection DiagramML-1250 PCLSchematic Diagrams Main Circuit Diagram 2/5 Main Circuit Diagram 3/5 Main Circuit Diagram 4/5 Main Circuit Diagram 5/5 PC L Main Circuit Diagram 1/9 PCL Main Circuit Diagram 2/9 PCL Main Circuit Diagram 3/9 PCL Main Circuit Diagram 4/9 PCL MainCircuit Diagram 5/9 PCL Main Circuit Diagram 6/9 PCL Main Circuit Diagram 7/9 PCL Main Circuit Diagram 8/9 PCL Main Circuit Diagram 9/9 Hvps Circuit Diagram 1/2 Hvps Circuit Diagram 2/2 Smps Circuit Diagram No Marking Resistor 1/4W-J 5% Panel Circuit Diagram Page Samsung Electronics Digital Printing CS Group Contents
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ML-1200, ML-1210 specifications

The Samsung ML-1200 is a noteworthy monochrome laser printer designed to deliver impressively sharp and high-quality printouts, making it a popular choice for both home and small office environments. While it boasts a compact design, the ML-1200 does not compromise on performance, offering a variety of features that enhance productivity and ease of use.

One of the most defining characteristics of the ML-1200 is its print speed. Capable of producing up to 12 pages per minute (ppm), it ensures that users can handle their printing tasks quickly and efficiently. The first page out time is a mere 8.5 seconds, allowing users to receive their documents promptly without unnecessary delays.

Resolution is another critical factor in print quality, and the ML-1200 does not disappoint. With a printing resolution of up to 1200 x 1200 dots per inch (dpi), this printer provides crisp text and detailed graphics, making it suitable for various documents ranging from simple text files to more intricate reports and presentations.

Equipped with Samsung's unique ReCP (Rendering Engine for Clean Page) technology, the ML-1200 enhances the clarity of printed text and images. This technology works by improving edge detail and overall print quality, minimizing the chances of blurry or unclear outputs, which is a common issue with lower-tier models.

In terms of connectivity, the Samsung ML-1200 features standard USB 2.0 support, allowing users to connect the printer directly to their computer seamlessly. While it may lack wireless capabilities, this direct connection provides a stable and reliable interface for personal use.

The device offers a standard paper tray capacity of 150 sheets, along with a one-sheet manual feed slot, catering to different media types. The printer supports various paper sizes, including A4, Letter, and Legal, further enhancing its versatility for various printing tasks.

In conclusion, the Samsung ML-1200 is a robust monochrome laser printer that offers a combination of speed, print quality, and usability, making it an ideal choice for individuals and small businesses looking for a reliable printing solution. Its compact size and efficient technologies ensure that it can easily fit into any workspace while delivering outstanding results consistently.
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