Samsung ML-1250 Spécifications

SERVICELASER PRINTERML-1200 SeriesML-1210 / ML-1250 / ML-1220MManualLASER PRINTER CONTENTS1. Precautions2. Specifications3. Disassembly and Reassembl

Disassembly and Reassembly3-4Samsung Electronics3-6 HVPS Board1. Before you remove HVPS board, you should remove:•Main Cover (see [3-1 Main Cover])2.

Disassembly and Reassembly3-5Samsung Electronics3-8 Thermostat and Halogen Lamp1. Remove a screw from the fuser assembly andremove the thermostat cove

Disassembly and Reassembly3-6Samsung Electronics3-9 SMPS Board1. Before you remove the SMPS board, you shouldremove:• Main Cover (see [3-1 Main Cover

Disassembly and Reassembly3-7Samsung Electronics3-10 Main Board and Sensor Board1. Before you remove the main board, you shouldremove:• Main Cover (se

Troubleshooting4-1Samsung Electronics4. Troubleshooting4-1 How to use DCU 4-1-1 DCU Setup ...Page(4-2)4-1-2 Co

Troubleshooting4-2Samsung Electronics4-1 How to use DCU 4-1-1 DCU SetupYou can examine the malfunction of the printer. To perform DCU, open the fron

Troubleshooting4-3Samsung Electronics4-1-3 Self Diagnostic ModeIf Error code occurs due to malfunction of the printer, perform Self Diagnostic Mode

Troubleshooting4-4Samsung Electronics13. THV(+) TRIGGER. ALL HVAll high voltage output by each HV terminal and LSU and the fan is in operation. In thi

Troubleshooting4-5Samsung Electronics4-2 The cause and solution of Bad image 4-2-1 Vertical Black Line and Band • Description1. Straight thin black v

Troubleshooting4-6Samsung Electronics4-2-3 Horizontal Black Band• Description1. Dark or blurry horizontal stripes occur in the printing periodically.

© Samsung Electronics Co.,Ltd. October. 2001Printed in Korea.VERSION NO. : 2.03 CODE : JC-0051AThis service manual is also provided on t

Troubleshooting4-7Samsung Electronics4-2-5 Light Image• Description The printed image is light, with no ghost.Digital PrinterDigital PrinterDigital P

Troubleshooting4-8Samsung Electronics4-2-7 Uneven Density• Description Print density is uneven between left and right.Check and Cause Solution1. The

Troubleshooting4-9Samsung Electronics4-2-9 Ghost (1) • Description Ghost occurs at 75 mm intervals of the OPC drum in the whole printing.Digital Prin

Troubleshooting4-10Samsung Electronics4-2-11 Ghost (3) • Description White ghost occurs in the black image printing at 32mm intervals.Digital PrinterD

Troubleshooting4-11Samsung Electronics4-2-14 Satins on Back of Page • Description The back of the page is stained at 47mm intervals.Digital Digital Pr

Troubleshooting4-12Samsung Electronics4-3 The cause and solution of the bad discharge4-3-1 Wrong Print Position• Description Printing begins at wro

Troubleshooting4-13Samsung Electronics4-3-4 JAM 2 • Description1. Recording paper is jammed in front of or inside the fuser.2. Recording paper is st

Troubleshooting4-14Samsung Electronics4-3-5 Multi-Feeding • Description Multiple sheets of paper are fed at once.Check and Cause Solution1. Solenoid

Troubleshooting4-15Samsung Electronics4-3-7 OPC• Description Paper is rolled up in the OPC.Check and Cause Solution1. Paper is too much thin. 2. Th

Troubleshooting4-16Samsung Electronics4-4 The cause and solution of the malfunction4-4-1 All LEDs blinking (Fuser Error)• Description1. All the lamps

This manual is stated and provided for service description.All rights reserved. Any parts of the information in this manual are prohibited from free d

Troubleshooting4-17Samsung Electronics4-4-3 Not function of the gear of the fuser due to melting away• DescriptionThe motor breaks away from its plac

Troubleshooting4-18Samsung Electronics4-4-6 Cover Open• DescriptionThe ERROR lamp is on even when the print cover is closed.Check and Cause Solution1

Troubleshooting4-19Samsung Electronics4-4-9 Defective motor operation• DescriptionMain motor is not driving when printing, and paper does not feed in

Troubleshooting4-20Samsung Electronics4-4-11 Vertical Line Getting Curved• DescriptionWhen printing, vertical line gets curved.Check and Cause Solutio

Troubleshooting4-21Samsung Electronics4-5 Toner Cartridge ServiceIt is not guaranteed for the default caused by using other toner cartridge other than

Troubleshooting4-22Samsung Electronics4-5-4 Signs and Measures at Poor toner cartridgeFault Signs Cause & Check SolutionLight image andpartially

Troubleshooting4-23Samsung ElectronicsFault Signs Cause & Check SolutionWhite Black spotRecycled product• Light or dark blackdots on the imageoc

Troubleshooting4-24Samsung ElectronicsFault Signs Cause & Check SolutionGhost & ImageContamination• The printed imageis too light or dark,or

Troubleshooting4-25Samsung Electronics4-6 The cause and solutions of bad environment of the software4-6-1 The printer is not working (1) • Descriptio

Troubleshooting4-26Samsung Electronics4-6-2 The printer is not working (2) • DescriptionAfter receiving the printing order, no response at all or the

Precautions1-1Samsung Electronics1. Precautions1-1 Safety Precautions1-2 Precautions on Disassembly and Reassembly Please read the following carefully

Troubleshooting4-27Samsung Electronics4-6-3 Abnormal Printing• DescriptionThe printing is not working properly even when the cable has no problem.(ev

Troubleshooting4-28Samsung Electronics4-6-4 SPOOL Error• DescriptionTo spool which stands for "simultaneous peripheral operations online" a

• Deal drawings and service parts are declared for the items with higher rateof inferiority and replaceable in the level of service description only.

O : Service available X : Service not availableExploded Views and Parts List5-2Samsung Electronics5-1 Exploded Views and Parts ListNo. Description SE

Exploded Views and Parts List5-3Samsung Electronics8-138-1413121112-1867438-4-28-4-18-410958-128-178-168-258-298-288-108-158-118-98-88-78-18-68-38-28-

Exploded Views and Parts List5-4Samsung Electronics5-2 Front Assembly SAMSUNGSAMSUNG00’222’1086110453117129SAMSUNG13ML-1210 / ML-1250ML-1210 / ML-125

Exploded Views and Parts List5-5Samsung Electronics5-3 Engine/Frame Lower Assembly 2-172-3-22-3-12-72-7-32-7-12-7-22-9-12-9-22-9-42-9-3 2-82-92-103-3

Exploded Views and Parts List5-6Samsung Electronics5-4 Fuser Assembly 1515-215-11414-214-1101722111841227139518619320S-1S-1S-1S-202430292726282124232

Exploded Views and Parts List5-7Samsung Electronics5-5 Shield Engine Unit Assembly1-211-13S-120S-2S-3NO DESCRIPTION0 ELA HOU-SHIELD ENGINE1 MEC-SHIEL

Exploded Views and Parts List5-8Samsung Electronics5-6 RX Drive AssemblyNO DESCRIPTION0 ELA HOU-RX DRIVE1 MOTOR-STEP2 PMO-GEAR_71/283 PMO-GEAR_73/224

Precautions1-2Samsung Electronics1-3 Tools for TroubleshootingThe following tools are recommended for safe and smooth troubleshooting described in th

Block Diagram6-1Samsung Electronics6. Block Diagram6-1. Block Diagram(GDI)MAINS3C46M0XSDRAM(8MB)SMPSEng i nePANELB' DFLASHMEMORY(0.5MB)POWERCORD+

Block Diagram6-2Samsung Electronics6-2. Block Diagram(PCL)MAINSOptionUp to68MBDRAM(4(2MB)MB)LSUEng i nePANELB' DFLASHMEMORYPOWERCORD+24VMOTORSOLE

Connection Diagram7-1Samsung Electronics7. Connection Diagram7-1. Connection Diagram(GDI)123456789101112345123456+24V_T+24V GND*PMOTOR+3. 3VEXT_CLK*HS

Connection Diagram7-2Samsung Electronics7-2. Connection Diagram(PCL)1234567891011+24V_SLEEP+24V GND*PLREADY*MOTOREXT_CLK*HSYNC+5V+5V GND*LD_ONVDO+5V G

Repair ManualRepair Manual1. Block Diagram2. Connection Diagram3. Schematic DiagramsCONTENTSLASER PRINTERML-1200 Series

11-1Samsung ElectronicsBLOCK DIAGRAMRepair Manual1. Block Diagram1.1 GDI Block Diagram(ML-1210/ML-1220M)MAINS3C46M0XSDRAM(8MB)SMPSEng i nePANELB'

1-2BLOCK DIAGRAMSamsung ElectronicsRepair ManualMAINSOptionUp to68MBDRAM(4(2MB)MB)LSUEng i nePANELB' DFLASHMEMORYPOWERCORD+24VMOTORSOLENOIDFANEXI

22-1Samsung ElectronicsCONNECTION DIAGRAMRepair Manual2. Connection Diagram2.1 GDI Connection Diagram(ML-1210/ML-1220M)123456789101112345123456+24V_T+

2-2CONNECTION DIAGRAMSamsung ElectronicsRepair Manual1234567891011+24V_SLEEP+24V GND*PLREADY*MOTOREXT_CLK*HSYNC+5V+5V GND*LD_ONVDO+5V GNDLSUPOLYGONMOT

33-1Samsung ElectronicsSCHEMATIC DIAGRAMSRepair Manual3. Schematic Diagrams3.1 GDI Main Circuit Diagram (1/5)

Specifications2-1Samsung Electronics2. SpecificationsSpeedResolutionFROP(Fist Power On Time)Warm-Up TimePower ConsumptionDimensionWeightProcessorMemor

3-2SCHEMATIC DIAGRAMSSamsung ElectronicsRepair ManualMain Circuit Diagram (2/5)

3-3Samsung ElectronicsSCHEMATIC DIAGRAMSRepair ManualMain Circuit Diagram (3/5)

3-4SCHEMATIC DIAGRAMSSamsung ElectronicsRepair ManualMain Circuit Diagram (4/5)

3-5Samsung ElectronicsSCHEMATIC DIAGRAMSRepair ManualMain Circuit Diagram (5/5)

3-6SCHEMATIC DIAGRAMSSamsung ElectronicsRepair Manual3.2 PC L Main Circuit Diagram (1/9)

3-7Samsung ElectronicsSCHEMATIC DIAGRAMSRepair ManualPCL Main Circuit Diagram (2/9)

3-8SCHEMATIC DIAGRAMSSamsung ElectronicsRepair ManualPCL M a i n Circuit Diagram (3/9)

3-9Samsung ElectronicsSCHEMATIC DIAGRAMSRepair ManualPCL Main Circuit Diagram (4/9)

3-10SCHEMATIC DIAGRAMSSamsung ElectronicsRepair ManualPCL M ainCircuit Diagram (5/9)

3-11Samsung ElectronicsSCHEMATIC DIAGRAMSRepair ManualPCL Main Circuit Diagram (6/9)

3-1-1 Front Cover1. Pull the both side of the cover to open.2. Remove a screw and remove the stopper that holdsthe printer cover.3. Loosen the right l

3-12SCHEMATIC DIAGRAMSSamsung ElectronicsRepair ManualPCL M a i n Circuit Diagram (7/9)

3-13Samsung ElectronicsSCHEMATIC DIAGRAMSRepair ManualPCL M a i n Circuit Diagram (8/9)

3-14SCHEMATIC DIAGRAMSSamsung ElectronicsRepair ManualPCL M a i n Circuit Diagram (9/9)

3-15Samsung ElectronicsSCHEMATIC DIAGRAMSRepair Manual5V 18V24VS24VS18V24VS5VSAMSUNG ELECTRONICSTITLEREF. NODATE 01/01/041.01 OF 2DESIGNED CHECKEDREV.

3-16SCHEMATIC DIAGRAMSSamsung ElectronicsRepair Manual5V18V24VS18V18V18V24VS24VSD-GNDCN1-#5CN1-#4CN1-#8TITLEDRW. NOREF. NOSIZE A4DATE 01/01/04SWALLOW

3-17Samsung ElectronicsSCHEMATIC DIAGRAMSRepair Manual+24V 1.8A+5V 1.0AGNDNO MARKING RESISTOR 1/4W-J (5%)13561110712GNDCN5-14CN5-13,15CN5-16EER2828+5V

3-18SCHEMATIC DIAGRAMSSamsung ElectronicsRepair Manual+24V 1.8A+5V 1.0AGNDNO MARKING RESISTOR 1/4W-J (5%)13561110712GNDCN5-14CN5-13,15CN5-16EER2828+5V

3-19Samsung ElectronicsSCHEMATIC DIAGRAMSRepair Manual3.5 Panel Circuit Diagram

Samsung Electronics Digital Printing CS GroupCopyright (c) 2001. 10This manual is made and described centering around circuit diagram and circuit des

Disassembly and Reassembly3-2Samsung Electronics3-2 LED Panel PBA1. Before you remove other covers, you should remove.• Front Cover (see [3-1 Main Cov

ContentsSamsung ElectronicsCONTENTS1. Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(1-1)1-1 Sa

Disassembly and Reassembly3-3Samsung Electronics3-4 Transfer Roller1. Open the front cover.2. Use a proper tool("-" type screwdriver) to pul