Manuel d'utilisation / d'entretien du produit ML-1200 du fabricant Samsung
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SERVICE LASER PRINTER ML-1200 Series ML-1210 / ML-1250 / ML-1220M Manual LASER PRINTER CONTENTS 1. Precautions 2. Specifications 3. Disassembly and Reassembly 4.
© Samsung Electronics Co.,Ltd. October . 2001 Printed in Korea. VERSION NO. : 2.03 CODE : JC-0051A This service manual is also provided on the web, the ITSELF system Samsung Electronics Co.
This manual is stated and provided for service description. All rights reserved. Any parts of the information in this manual are pr ohibited from fr ee duplication, use or translation without prior written approval except in cases allowed by the Copyright Act.
Precautions 1-1 Samsung Electronics 1. Precautions 1-1 Safety Precautions 1-2 Precautions on Disassembly and Reassembly Please read the following carefully to prevent any accidents and not to damage the unit during service. 1. Safety Precautions There are some electric or machinery parts with safety related property .
Precautions 1-2 Samsung Electronics 1-3 T ools for T roubleshooting The following tools are recommended for safe and smooth troubleshooting described in this service manual. DCU(Diagnostic Control Unit) Standard: T est equipment to diagnose the Laser printer supplied by Samsung Electronics.
Specifications 2-1 Samsung Electronics 2. Specifications Speed Resolution FROP(Fist Power On T ime) W arm-Up T ime Power Consumption Dimension Weight Processor Memory Emulation Interface OS Support N/.
3-1-1 Front Cover 1. Pull the both side of the cover to open. 2. Remove a screw and remove the stopper that holds the printer cover . 3. Loosen the right lower part of the cover , then push the cover in the direction of arrow to loosen the left lower part.
Disassembly and Reassembly 3-2 Samsung Electronics 3-2 LED Panel PBA 1. Before you remove other covers, you should remove. • Front Cover (see [3-1 Main Cover]) 2. Remove two screws of PCB cover , and widen the hooks( ) to remove. 3. Remove two screws, and remove LED panel.
Disassembly and Reassembly 3-3 Samsung Electronics 3-4 T ransfer Roller 1. Open the front cover . 2. Use a proper tool("-" type screwdriver) to pull the one end of the roller slightly , then take it out.
Disassembly and Reassembly 3-4 Samsung Electronics 3-6 HVPS Board 1. Before you remove HVPS board, you should remove: •Main Cover (see [3-1 Main Cover]) 2. Remove four screws and a connector from HVPS board, then take the board out. 3-7 Fuser Assembly 1.
Disassembly and Reassembly 3-5 Samsung Electronics 3-8 Thermostat and Halogen Lamp 1. Remove a screw from the fuser assembly and remove the thermostat cover , then remove two screws securing the thermostat. 2. Remove two screws from the fuser assembly , and take the Heat Roller out.
Disassembly and Reassembly 3-6 Samsung Electronics 3-9 SMPS Board 1. Before you remove the SMPS board, you should remove: • Main Cover (see [3-1 Main Cover]) 2. Remove screws in the order of then remove the shield engine assembly . 3. Unplug connectors from the main board and connec - tors from SMPS, then remove the SMPS.
Disassembly and Reassembly 3-7 Samsung Electronics 3-10 Main Board and Sensor Board 1. Before you remove the main board, you should remove: • Main Cover (see [3-1 Main Cover]) • SMPS board (see [3-9 SMPS Board]) 2. Remove two screws from the main board and unplug all of connectors, then remove the board.
T roubleshooting 4-1 Samsung Electronics 4. T roubleshooting 4-1 How to use DCU 4-1-1 DCU Setup ......................................Page(4-2) 4-1-2 Code ................................................Page(4-2) 4-1-3 Self Diagnostic Mode ...........
T roubleshooting 4-2 Samsung Electronics 4-1 How to use DCU 4-1-1 DCU Setup Y ou can examine the malfunction of the printer . T o 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.
T roubleshooting 4-3 Samsung Electronics 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.
T roubleshooting 4-4 Samsung Electronics 13. THV(+) 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. If no toner cartridge in the printer , output of THV is +199V ~ + 2100V .
T roubleshooting 4-5 Samsung Electronics 4-2 The cause and solution of Bad image 4-2-1 V ertical Black Line and Band • Description 1. Straight thin black vertical line occurs in the printing.
T roubleshooting 4-6 Samsung Electronics 4-2-3 Horizontal Black Band • Description 1. Dark or blurry horizontal stripes occur in the printing periodically . (They may not occur periodically .) Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1.
T roubleshooting 4-7 Samsung Electronics 4-2-5 Light Image • Description The printed image is light, with no ghost. Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause Solution 1. Develop roller is stained when the toner of developer cartridge is almost con- sumed.
T roubleshooting 4-8 Samsung Electronics 4-2-7 Uneven Density • Description Print density is uneven between left and right. Check and Cause Solution 1.
T roubleshooting 4-9 Samsung Electronics 4-2-9 Ghost (1) • Description Ghost occurs at 75 mm intervals of the OPC drum in the whole printing. Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer 75mm Check and Cause Solution 1.
T roubleshooting 4-10 Samsung Electronics 4-2-1 1 Ghost (3) • Description White ghost occurs in the black image printing at 32mm intervals. Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer 32mm Check and Cause Solution 1.
T roubleshooting 4-11 Samsung Electronics 4-2-14 Satins on Back of Page • Description The back of the page is stained at 47mm intervals. Digital Digital Pri Digital Printer Digital Printer Digital Printer Check and Cause Solution 1. T ransfer roller is contaminated.
T roubleshooting 4-12 Samsung Electronics 4-3 The cause and solution of the bad discharge 4-3-1 Wrong Print Position • Description Printing begins at wrong position on the paper . Check and Cause Solution Wrong sense time caused by defective feed sensor actuator .
T roubleshooting 4-13 Samsung Electronics 4-3-4 JAM 2 • Description 1. Recording paper is jammed in front of or inside the fuser . 2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator-Feed.
T roubleshooting 4-14 Samsung Electronics 4-3-5 Multi-Feeding • Description Multiple sheets of paper are fed at once. Check and Cause Solution 1. Solenoid malfunction(the solenoid does not work properly): Perform DCU mode : solenoid check 06. 2. Pad-Friction is contaminated with foreign matter .
T roubleshooting 4-15 Samsung Electronics 4-3-7 OPC • Description Paper is rolled up in the OPC. Check and Cause Solution 1. Paper is too much thin. 2. The face of paper is curled. 1. Recommend to use normal paper . 2. How to remove the rolled paper in the OPC.
T roubleshooting 4-16 Samsung Electronics 4-4 The cause and solution of the malfunction 4-4-1 All LEDs blinking (Fuser Error) • Description 1. All the lamps on the operator panel blink. 2. Gear of the fuser does not work and breaks away melt away . When printing, motor breaks away from its place due to defective fuser gear .
T roubleshooting 4-17 Samsung Electronics 4-4-3 Not function of the gear of the fuser due to melting away • Description The motor breaks away from its place due to gear melting away . Check and Cause Solution DCU Mode : Check if the Error States '60' '62' '68' occur .
T roubleshooting 4-18 Samsung Electronics 4-4-6 Cover Open • Description The ERROR lamp is on even when the print cover is closed. Check and Cause Solution 1. The hook lever in the top cover may be defective. 2. Check the connector and circuit of the cover switch department in the Main Control board.
T roubleshooting 4-19 Samsung Electronics 4-4-9 Defective motor operation • Description Main motor is not driving when printing, and paper does not feed into the printer , resulting 'Jam 0'. Check and Cause Solution 1. Motor harness or sub PCB may be defective.
T roubleshooting 4-20 Samsung Electronics 4-4-1 1 V ertical Line Getting Curved • Description When printing, vertical line gets curved. Check and Cause Solution 1. If the supply of +24v is unstable in the Main Control board linking with LSU, check drive by DCU Mode: LSU Check -05- LSU Motor on.
T roubleshooting 4-21 Samsung Electronics 4-5 T oner Cartridge Service It is not guaranteed for the default caused by using other toner cartridge other than the cartridge supplied by the Samsung Electronic or caused by non-licensed refill production.
T roubleshooting 4-22 Samsung Electronics 4-5-4 Signs and Measures at Poor toner cartridge Fault Signs Cause & Check Solution Light image and partially blank image (The life is ended.) T oner Contamination • The printed image is light or unclean and untidy .
T roubleshooting 4-23 Samsung Electronics Fault Signs Cause & Check Solution White Black spot Recycled product • Light or dark black dots on the image occur periodically . • White spots occur in the image period- ically . • Poor appearance of the developer .
T roubleshooting 4-24 Samsung Electronics Fault Signs Cause & Check Solution Ghost & Image Contamination • The printed image is too light or dark, or partially contami- nated black. • T otally contaminat- edblack. (Black image print- ed out) • The density of print- outs is too dark and ghost occurs.
T roubleshooting 4-25 Samsung Electronics 4-6 The cause and solutions of bad environment of the software 4-6-1 The printer is not working (1) • Description While Power turned on, the printer is not working in the printing mode. Check and Cause Solution 1.
T roubleshooting 4-26 Samsung Electronics 4-6-2 The printer is not working (2) • Description After receiving the printing order , no response at all or the low speed of printing occurs due to wrong setup of the environment rather than malfunction of the printer itself.
T roubleshooting 4-27 Samsung Electronics 4-6-3 Abnormal Printing • Description The printing is not working properly even when the cable has no problem. (even after the cable is replaced) If the printer won't work at all or the strange fonts are repeated, the printer driver may be defec - tive or wrong setup in the CMOS Setup.
T roubleshooting 4-28 Samsung Electronics 4-6-4 SPOOL Error • Description T o spool which stands for "simultaneous peripheral operations online" a computer document or task list (or ".
• Deal drawings and service parts are declared for the items with higher rate of inferiority and replaceable in the level of service description only . • If inferiority occurs, you can replace the parts by the unit declared in deal drawings and service items.
O : Service available X : Service not available Exploded Views and Parts List 5-2 Samsung Electronics 5-1 Exploded Views and Parts List No. Description SEC.
Exploded Views and Parts List 5-3 Samsung Electronics 8-13 8-14 13 12 11 12-1 8 6 7 4 3 8-4-2 8-4-1 8-4 10 9 5 8-12 8-17 8-16 8-25 8-29 8-28 8-10 8-15 8-1 1 8-9 8-8 8-7 8-1 8-6 8-3 8-2 8-20 8-21 8-24 .
Exploded Views and Parts List 5-4 Samsung Electronics 5-2 Front Assembly SAMSUNG SAMSUNG 0 0 ’ 2 2 2 ’ 10 8 6 1 10 4 5 3 11 7 12 9 SAMSUNG 13 ML-1210 / ML-1250 ML-1210 / ML-1250 ML-1220M ML-1220M .
Exploded Views and Parts List 5-5 Samsung Electronics 5-3 Engine/Frame Lower Assembly 2-17 2-3-2 2-3-1 2-7 2-7-3 2-7-1 2-7-2 2-9-1 2-9-2 2-9-4 2-9-3 2-8 2-9 2-10 3-3 3-3-1 3-2-3 3-2-1 2-3 2-12 2-15 2-.
Exploded Views and Parts List 5-6 Samsung Electronics 5-4 Fuser Assembly 15 15-2 15-1 14 14-2 14-1 10 17 22 11 18 4 12 2 7 13 9 5 1 8 6 19 3 20 S-1 S-1 S-1 S-2 0 24 30 29 27 26 28 21 24 23 25 17 16 NO.
Exploded Views and Parts List 5-7 Samsung Electronics 5-5 Shield Engine Unit Assembly 1-2 1 1-1 3 S-1 2 0 S-2 S-3 NO DESCRIPTION 0 ELA HOU-SHIELD ENGINE 1 MEC-SHIELD BRKT CONTROLLER 1-1 IPR-SHIELD ENG.
Exploded Views and Parts List 5-8 Samsung Electronics 5-6 RX Drive Assembly NO DESCRIPTION 0 ELA HOU-RX DRIVE 1 MOTOR-STEP 2 PMO-GEAR_71/28 3 PMO-GEAR_73/22 4 PMO-GEAR_132/19 5 IPR-BRKT_MOTOR 6 IPR-BR.
Block Diagram 6-1 Samsung Electronics 6. Block Diagram 6-1. Block Diagram(GDI) MA I N S3C 46M 0X SD RAM (8 M B ) SM P S En g i n e PA N E L B' D FL AS H MEM O RY (0.
Block Diagram 6-2 Samsung Electronics 6-2. Block Diagram(PCL) MA I N S Option Up to 68MB DR A M (4 (2MB) MB ) LS U En g i n e PA N EL B' D FL AS H MEM O RY PO W E R CO R D +2 4V MOT O R SO L EN O.
Connection Diagram 7-1 Samsung Electronics 7. Connection Diagram 7-1. Connection Diagram(GDI) 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 1 2 3 4 5 6 +2 4V _ T +2 4V GND *P MOTO R +3 .
Connection Diagram 7-2 Samsung Electronics 7-2. Connection Diagram(PCL) 1 2 3 4 5 6 7 8 9 10 11 +2 4V _ SLEEP +2 4V GND * P LREADY* MOT O R EX T _ C L K * HS Y NC +5 V +5 V GND * LD_ ON VD O +5 V G N .
Repair Manual Repair Manual 1. Block Diagram 2. Connection Diagram 3. Schematic Diagrams CONTENTS LASER PRINTER ML-1200 Series.
1 1-1 Samsung Electronics BLOCK DIA GRAM Repair Manual 1. Bloc k Dia gr am 1.1 GDI Block Diagram(ML-1210/ML-1220M) MA I N S3C46M 0X SD RAM (8 M B ) SM P S En g i n e PA N EL B' D FL AS H MEM O RY (0.
1-2 BLOCK DIA GRAM Samsung Electronics Repair Manual MA I N S Option Up to 68MB DR A M (4 (2MB) MB ) LS U En g i n e PA N EL B' D FL AS H MEM O RY PO W ER CO R D +2 4 V MOT O R SO L EN O I D FA N.
2 2-1 Samsung Electronics CONNECTION DIAGRAM Repair Manual 2. Connection Dia gr am 2.1 GDI Connection Diagram(ML-1210/ML-1220M) 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 1 2 3 4 5 6 +2 4V _ T +2 4V GND *P M OT O R +3 .
2-2 CONNECTION DIAGRAM Samsung Electronics Repair Manual 1 2 3 4 5 6 7 8 9 10 11 +2 4 V _ SLEEP +2 4V GND * P LREADY* MOT O R EX T _ C LK * HS Y NC +5 V +5 V GND * LD_ ON VD O +5 V G N D LSU POL Y G O.
3 3-1 Samsung Electronics SCHEMA TIC DIAGRAMS Repair Manual 3. Schema tic Dia gr ams 3.1 GDI Main Circuit Diagram (1/5).
3-2 SCHEMA TIC DIAGRAMS Samsung Electronics Repair Manual Main Circuit Diagram (2/5).
3-3 Samsung Electronics SCHEMA TIC DIAGRAMS Repair Manual Main Circuit Diagram (3/5).
3-4 SCHEMA TIC DIAGRAMS Samsung Electronics Repair Manual Main Circuit Diagram (4/5).
3-5 Samsung Electronics SCHEMA TIC DIAGRAMS Repair Manual Main Circuit Diagram (5/5).
3-6 SCHEMA TIC DIAGRAMS Samsung Electronics Repair Manual 3.2 PC L Main Circuit Diagram (1/9).
3-7 Samsung Electronics SCHEMA TIC DIAGRAMS Repair Manual PC L Main Circuit Diagram (2/9).
3-8 SCHEMA TIC DIAGRAMS Samsung Electronics Repair Manual PC L M a i n Circuit Diagram (3/9).
3-9 Samsung Electronics SCHEMA TIC DIAGRAMS Repair Manual PC L Main Circuit Diagram (4/9).
3-10 SCHEMA TIC DIAGRAMS Samsung Electronics Repair Manual PC L M ainCircuit Diagram (5/9).
3-11 Samsung Electronics SCHEMA TIC DIAGRAMS Repair Manual PC L Main Circuit Diagram (6/9).
3-12 SCHEMA TIC DIAGRAMS Samsung Electronics Repair Manual PC L M a i n Circuit Diagram (7/9).
3-13 Samsung Electronics SCHEMA TIC DIAGRAMS Repair Manual PC L M a i n Circuit Diagram (8/9).
3-14 SCHEMA TIC DIAGRAMS Samsung Electronics Repair Manual PC L M a i n Circuit Diagram (9/9).
3-15 Samsung Electronics SCHEMA TIC DIAGRAMS Repair Manual 5V 18V 24VS 24VS 18V 24VS 5V SAMSUNG ELECTRONICS TITLE REF . NO DA TE 01/01/04 1.0 1 OF 2 DESIGNED CHECKED REV . APPRO VED DRW . NO SIZE A4 SW ALLOW -HVPS CN1-#6 U2-B CN1-#7 U2-A JH.CHO IN GND OUT U3 KA7818 7407 7407 JC R422 5.
3-16 SCHEMA TIC DIAGRAMS Samsung Electronics Repair Manual 5V 18V 24VS 18V 18V 18V 24VS 24VS D-GND CN1-#5 CN1-#4 CN1-#8 TITLE DRW . NO REF . NO SIZE A4 DA TE 01/01/04 SW ALLOW -HVPS REV . 1.0 2 OF 2 DESIGNED CHECKED APPROVED SAMSUNG ELECTRONICS CN1-#3 7407 JH.
3-17 Samsung Electronics SCHEMA TIC DIAGRAMS Repair Manual +24V 1.8A +5V 1.0A GND NO MARKING RESISTOR 1/4W -J (5%) 1 3 5 6 11 10 7 12 GND CN5-14 CN5-13,15 CN5-16 EER2828 +5V +24VS GND GND 1 2 17 4 9 6.
3-18 SCHEMA TIC DIAGRAMS Samsung Electronics Repair Manual +24V 1.8A +5V 1.0A GND NO MARKING RESISTOR 1/4W -J (5%) 1 3 5 6 11 10 7 12 GND CN5-14 CN5-13,15 CN5-16 EER2828 +5V +24VS GND GND 1 2 17 4 9 6.
3-19 Samsung Electronics SCHEMA TIC DIAGRAMS Repair Manual 3.5 Panel Circuit Diagram.
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Samsung Electronics Digital Printing CS Group Copyright (c) 2001. 10 This manual is made and described centering around circuit diagram and circuit description needed in the repair center in the form of appendix.
Contents Samsung Electronics CONTENTS 1. Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(1-1) 1-1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page(1-1) 1-2 Precautions on Disassembly and Reassembly .
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Samsung ML-1200 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Samsung ML-1200 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Samsung ML-1200, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Samsung ML-1200 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Samsung ML-1200, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Samsung ML-1200.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Samsung ML-1200. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Samsung ML-1200 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
