user manual

ManualsBrandsSamsung ManualsPrinterPrinter ML-4550

DIGITAL LASER PRINT CONTENTS

[The keynote of Product]

- Series Model: ML-4550 / 4551N / 4551ND

- High speed Laser Printer:

Up to 43 ppm in A4 (45 ppm in Letter),

Duplex: 29 ipm (A4); 30 ipm (Letter)

- Resolution: Up to 1200 x 1200 dpi

- Marvell 500Mhz

- Memory: 128 MB (Max. 512 MB)

128, or 256 MB optional memory available.

Use only the Samsung-approved DIMM.

128 MB: ML-MEM150, 256 MB: ML-MEM160

- Option:

ML-4550:500-sheet trays, ethernet 10/100 Base

TX wired LAN, ethernet 10/100 Base

hard disk, duplex unit, DIMM

- Toner cartridge:

Starter: 10K or 20K pages

Consumable: 10K or 20K pages

- Duty cycle: Monthly Up to 150,000 pages

Manual

SERVICE

DIGITAL LASER PRINT

ML-4550 Series

ML-4550/XEU

Basic Model

ML-4550

Summary of content (34 pages)

PAGE 1
DIGITAL LASER PRINT ML-4550 Series ML-4550/XEU Basic Model : ML-4550 SERVICE Manual DIGITAL LASER PRINT CONTENTS [The keynote of Product] - Series Model: ML-4550 / 4551N / 4551ND - High speed Laser Printer: Up to 43 ppm in A4 (45 ppm in Letter), Duplex: 29 ipm (A4); 30 ipm (Letter) - Resolution: Up to 1200 x 1200 dpi - Marvell 500Mhz - Memory: 128 MB (Max. 512 MB) 128, or 256 MB optional memory available. Use only the Samsung-approved DIMM.
PAGE 2
ELECTRONICS * This service manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applicable international and/or domestic law. Samsung Electronics Co.,Ltd. Mar. 2006 Printed in Korea. VERSION NO. : 1.
PAGE 3
Contents 1. Precautions 1.1 Safety Warning 1.2 Caution for safety 1.3 ESD Precautions 1-1 1-2 1-5 2. Product Specifications 2.1 Product Overview 2.2 Specifications 2.3 Model Comparison Table 2-1 2-1 2-6 3. Summary of Product 3.1 Printer Components 3.2 System Layout 3.3 Engine H/W Specifications 3-1 3-7 3-11 4. Alignment and Adjustments 4.1 4.2 4.3 4.4 4.
PAGE 4
Continue... 5. Disassembly and Reassembly 5.1 General Precautions on Disassembly 5.2 Transfer Roller 5.3 MPF Ass’y 5.4 Holder Pad Ass'y 5.5 Retard Ass'y 5.6 Feed2 Idle Unit 5.7 Cover Right 5.8 Main PBA 5.9 Main Drive Ass'y 5.10 DEVE Drive Ass'y 5.11 Connector PBA 5.12 Solenoid 5.13 Rear Cover 5.14 Cover Left 5.15 Top Cover 5.16 Open Cover 5.17 Inner Cover 5.18 Fuser Ass'y 5.19 Duplex Solenoid Ass'y 5.20 Exit Roller 5.21 LSU 5.22 DC Fan 5.23 Toner Sensor PBA 5.24 REGI Ass'y 5.25 MP Pick Up Ass'y 5.
PAGE 5
Continue... 6. Troubleshooting 6.1 6.2 6.3 6.4 6.5 The cause and solution of Bad image The cause and solution of the bad discharge The cause and solution of the malfunction Maintaining the toner cartridge The cause and solutions of bad environment of the software 6-1 6-8 6-13 6-17 6-22 7. Exploded Views & Parts List 7.1 Main Assembly 7.2 Cover Assembly 7.3 Frame Assembly 7.4 Fuser Unit 7.5 REGI Assembly 7.6 Main Motor Assembly 7.7 Deve Motor Assembly 7.8 Exit Sorenoid Assembly 7.9 Cassette Assembly 7.
PAGE 6
Continue... 10. Schematic Diagram 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 Main Board DIMM board CRUM board EMPTY board HVPS Panel SCF Toner sensor HDD.eps 10-1 10-17 10-19 10-20 10-21 10-25 10-26 10-29 10-30 11. Reference Information 11.1 11.2 11.3 11.
PAGE 7
Exploded Views & Parts List 7. Exploded Views and Parts List (ML-4550/XEU) Contents 7.1 Main Assembly p.7-2 7.2 Cover Assembly p.7-3 7.3 Frame Assembly p.7-4 7.4 Fuser Unit p.7-6 7.5 REGI Assembly p.7-7 7.6 Main Motor Assembly p.7-8 7.7 Deve Motor Assembly p.7-9 7.8 Exit Sorenoid Assembly p.7-10 7.9 Cassette Assembly p.7-11 7.10 Duplex Unit p.7-12 7.11 SCF Unit p.
PAGE 8
Exploded Views & Parts List 7.
PAGE 9
Exploded Views & Parts List 7.
PAGE 10
7-4 4-2 4 4-1 14 15 4-3 14-2 4-4 17 4-7 14-1 0 4-5 2 4-8 4-6 16 20 14-3 1 45 2-4-3 2-4-2 17 19 2-4-1 39 2-1 2-4 40 22 43 21 2-2 2-2 8 2-3 5-4 39 12 6 5-3 35 5-1 5-2 33 5 34 32 43 31 37 36 9 29 25 3 23 11 3-7 3-2 26 3-3 3-5 3-4 3-7 3-6 38 3-7 30 24 12 28 3-1 27 13 Exploded Views & Parts List 7.
PAGE 11
Exploded Views & Parts List Frame Assembly(2/2) 0 48-2 48-9 48-7 48 48-4 48-8 99 48-6 48-1 48-5 48-3 81 78 83 98 87 85 89 88 83 82 84 80 79 77 100 91 47 76 86 90 92 47-2 47-5 93 47-3 47-4 94 71 70 47-1 72 96 95 49 68 49 49-5 49-4 66 41 49-8 49-3 49-2 50 50-6 49-7 49-7 50-4 50-3 60-4 60-4 49-9 49-10 49-11 65 50 50-6 63 50-5 53 49-13 49-9 49-10 50-1 51 50-7 61 50-2 58 64 54 62 52 59-11 60-6 59-9 59-5 60-1 59-6 59-10 59-5-1 59-5-2 59-7 59-2-3
PAGE 12
Exploded Views & Parts List 7.
PAGE 13
Exploded Views & Parts List 7.
PAGE 14
Exploded Views & Parts List 7.
PAGE 15
Exploded Views & Parts List 7.
PAGE 16
Exploded Views & Parts List 7.
PAGE 17
Exploded Views & Parts List 3 4 1 27 28 2 1 30 22 23 20 19 24 25 26 5 1 14 32 21 31 17 15 13 6 7 16 18 8 1 9 10 11 1 12 0 7.
PAGE 18
Exploded Views & Parts List 7.
PAGE 19
Samsung Electronics 3 39 7 24 23 36 2 34 31 27 55 12 4 26 13 37 41 8 28 44 30 25 33 29 9 10 18 17 43 15 14 56 19 6 5 16 42 20 1 11 21 22 38 40 0 32 Exploded Views & Parts List 7.
PAGE 20
Parts List Service Parts List (Model code : ML-4550/XEU) SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service 7.1-1 JC96-04004B ELA UNIT-FRAME BASE;ML-4550,XEROX/SEC,-, SA 7.1-2 JC96-04064A ELA HOU BASE-HOUSING;ML-4550,SEC,110V/22 SNA 7.1-3 JC97-02230B MEA UNIT-KNOCK_UP MP;ML-3560,SEC,-,110V/ G0470 SA 7.1-3-1 JC61-01251B PLATE-M_KNOCK UP MP;ML-3560,ABS,T2.2,W11 W3027 SA 7.
PAGE 21
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service 7.1-35 JC96-04015A ELA UNIT-CASSETTE;ML-4550,SEC,-,110V/220 SA 7.1-36 JC92-01839A PBA-ERASE_LAMP;ML-4550,SEC,-,FR1,-,-,-,2 SNA 7.1-38 JC31-00050A FAN;AD0424HB-C56,CLP-600,PBT+GF,-,3PIN,N SA 7.2-1 JC96-03978A ELA UNIT-COVER TOP;ML-4550,SEC,-,110V/22 SA 7.2-1-1 JC63-00699A COVER-M_TOP;ML-3560,ABS,T2.5,W396.0,L426 SA 7.
PAGE 22
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service 7.3-4-6 JC61-70965A SPRING ETC-EMPTY;ML-6000,SUS304-WPB,PI0. O1099 SA 7.3-4-7 0604-001095 PHOTO-INTERRUPTER;TR,90%,150mW,DIP-4,BK P0013 SA 7.3-4-7 0604-000165 PHOTO-INTERRUPTER;TR,-,-,-,BK K3805 SA 7.3-4-7 0604-001210 PHOTO-INTERRUPTER;TR,-,200mW,DIP-4,ST SNA 7.3-4-7 0604-001230 PHOTO-INTERRUPTER;OPIC,-,-,-,BK SA 7.
PAGE 23
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service 7.3-48-8 JC61-01239A GUIDE-M SHAFT_BELT;ML-3560,POM,0.6,10,6. SNA 7.3-49 JC96-04016A ELA UNIT-ROLLER_IDLE;ML-4550,SEC,-,110V/ SA 7.3-49-2 JC61-00635A HOUSING-M-RETARD;ML-2150,POM(M90-44),-,H6035 SA 7.3-49-3 JC73-00207A RUBBER-RETARD;ML-3560,IR,19.5,35,30,YELL C4026 SA 7.3-49-4 JC72-00993A PMO-HUB OUT RETARD;ML-2150,POM,BLK,-,M90 K4021 SA 7.
PAGE 24
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service 7.3-83 JC61-70932A SPRING ETC-GUIDE DEVE;ML-5000A,-,D4.3,-, Z4159 SA 7.3-84 JC65-00008A TERMINAL-P-TR_KESTREL;ML-3560,C5210P,-,K4278 SA 7.3-86 JC65-00009A TERMINAL-SPRING_TR;ML-3560,STS304WPB,-,K4279 SA 7.3-89 JC63-00679A GROUND-P-ZENER;ML-3560,C5210P,T0.2,26.6, SNA 7.3-90 JC63-00676A GROUND-P-FUSER;ML-3560,SUS301,T0.2,32.2, SNA 7.
PAGE 25
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service 7.4-3-14 6006-001078 SCREW-TAPTITE;WSP,PH,+,M3,L10,ZPC(YEL),S SNA 7.4-4 JC97-02631A MEA UNIT-FUSER_GU_R;ML-4550,-,-,-,-,-,SNA 7.4-4-1 JC61-01226B GUIDE-M_REAR;ML-3560,HIPS,2.5,98,100.3,B SNA 7.4-4-2 JC72-00382A PMO-BUSHING TX;ML-6060A,POM M9044,BLK,-, SNA 7.4-4-6 JC61-01549A HOLDER-M REAR_LEVER;ML-3560,PC,NH-1023XD SNA 7.
PAGE 26
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service 7.9-21 JC61-01228A HOLDER-M-PAD_HOUSING;ML-3560,ABS,2.5,48, SNA 7.9-24 JC61-00455A SPRING ETC-PLATE K/UP;SCX-5100,SUS304,24 Z4228 SA 7.9-25 JC61-01245A PLATE-P-KNOCK UP;ML-3560,SECC,1.2,279.1, SNA 7.9-27 JC61-01221B GUIDE-M_HANDLE;ML-3560,ABS,2.5,103.7,396 SNA 7.10-33 6044-000159 RING-C;ID3,OD7,T0.6,PASS,STSC Z4357 SA 7.
PAGE 27
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service #N/A JC63-00875A GROUND-P-BRUSH;ML-3560,C5210P,T0.2,14.4, SNA #N/A JC63-00911A SHEET-GUIDE PATH;ML-3560,PC,T0.254,21,84 SNA #N/A JC63-01206A GROUND-CASSETTE;ML-4550,SUS301,0.2,82.6, SA #N/A JC64-00190B KNOB-M_REAR;ML-3560,HIPS,2.5,24.7,44.
PAGE 28
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service #N/A 3711-002810 HEADER-BOARD TO CABLE;BOX,9P,1R,2mm,STRA SNA #N/A 3711-002811 HEADER-BOARD TO CABLE;BOX,10P,1R,2mm,STR SNA #N/A 3711-003408 HEADER-BOARD TO CABLE;BOX,2P,1R,2mm,STRA SNA #N/A 3711-003409 HEADER-BOARD TO CABLE;BOX,3P,1R,2mm,STRA SNA #N/A 3711-003410 HEADER-BOARD TO CABLE;BOX,4P,1R,2mm,STRA SNA #N/A 3711-003968 HEADER-BOARD TO CABLE;BOX,3P,1R,
PAGE 29
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service #N/A JC66-00905A SHAFT-DEV;ML-3560,SUM24L+NI,280.0,¥Õ5,-,S SNA #N/A JC66-01237A ROLLER-DEVE;ML-4550,NBR,D16,232,-,-,SNA #N/A JC66-01267A ROLLER-SHAFT_FEED;ML-4550,SUM22+EPDM,15. SA #N/A JC66-01271A ROLLER-EXIT_DUP;ML-4550,SUM22+EPDM,19.8, SNA #N/A JC66-01281A GEAR-IDLE;ML-4550,POM,0.6,32,-,NTR,21.
PAGE 30
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service #N/A JC97-02621A MEA UNIT-HOPPER;ML-4550,SAMSUNG,-,-,-,-, SNA #N/A JC97-02622A MEA UNIT-DUCT;ML-4550,SAMSUNG,-,-,-,-,SNA #N/A JC97-02632A MEA UNIT-FUSER_BK_G;ML-4550,-,-,-,-,-,SNA #N/A JG72-40960A PMO-CAP TONER;SF6000,PP,BLK,-,-,VO,-,-,SNA #N/A 0201-001162 ADHESIVE-CYA;LOCTITE403,NTR,1250,20G SNA #N/A 0201-001235 ADHESIVE-TS;DEH-390D,RED,400,SNA #N/A 0202-0
PAGE 31
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service #N/A 2007-000082 R-CHIP;3.3Kohm,5%,1/10W,TP,1608 SA #N/A 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 SA #N/A 2007-000086 R-CHIP;5.
PAGE 32
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service #N/A 2203-006676 C-CER,CHIP;10000NF,+80TO-20%,10V,Y5V,201 SNA #N/A 2203-006818 C-CER,CHIP;47000nF,20%,6.3V,X5R,3216 SA #N/A 2401-000480 C-AL;10uF,20%,50V,GP,TP,5x11,5 SA #N/A 2401-002420 C-AL;470UF,20%,16V,WT,TP,10X12,5 SNA #N/A 2402-001042 C-AL,SMD;100uF,20%,16V,GP,TP,6.6x6.6x5.4 SA #N/A 2402-001049 C-AL,SMD;10uF,20%,16V,GP,TP,3.3x3.3x5.
PAGE 33
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service #N/A JC63-01131A COVER-FUSER UPPER;ML-4550,PET+GF30%,FR53 SNA #N/A JC63-01150A COVER-FUSER LOWER;ML-4550,PET+GF30%,FR53 SNA #N/A JC65-00002A TERMINAL-P_PTL L;ML-2060,PB(C5210P),-,-, K4274 SA #N/A JC65-00003A TERMINAL-P_PTL R;ML-2060,PB(C5210P),-,-, K4275 SA #N/A JC66-00435A GEAR-IDLE CR 17;ML-2150,POM, F20-03,0.
PAGE 34
Parts List SA : SERVICE AVAILABLE SNA : SERVICE not AVAILABLE DNA : DELIVERY not AVAILABLE Drawer# SEC-Code Description & Specification Location Service #N/A JC63-00710A SHEET-FILM AGITATOR;ML-3560,PET,0.125,24 SNA #N/A JC66-01264A ROLLER-EXIT_F/UP;ML-4550,SUM+EPDM,17.6,SNA #N/A JC66-01266A GEAR-FUSER;ML-4550,PPS,OFL4036,M1,Z49,-, SNA #N/A JC67-00184A CAP-END;ML-4550,PPS, OFL4036,t2,D38.0,18 SNA #N/A JC67-00185A CAP-CARBON BRUSH;ML-4550,PET+GF30%,FR530 SNA #N/A JC71-00057A ELECTRODE-P-FU_R_08;ML-3560,T0.