Page 1: Service Manual
ML-7300 Series SERVICE Manual LASER PRINTER CONTENTS 1. Precautions 2. Reference Information 3. Product Information 4. Disassembly 5. Trouble Shooting 6. Exploded Views & Parts List 7. Electrical Parts List 8. Block Diagrams 9. PCB Diagrams 10. Port Thru (Network Printer Card) 11.
Page 2 PMO-HOLDER PAD MP PMO-BKT HOLDER MP PMO-ACTUATOR EMPTY PMO-SUB GUIDE MP PMO-GUIDE RING PMO-ACTUATOR PAPER RPR-PAD KNOCK UP MP RPR-RUBBER P/UP MP RPR-FRICTION PAD MP ELA HOU-BRKT DUPLEX SCREW-TAPTITE SCREW-TAPTITE RING-CS RING-E Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 3 SCREW-TAPTITE SCREW-TAPTITE RING-CS CABLE TIE CABLE TIE CABLE CLAMP SPRING-CLUTCH CBF-HARNESS-LSU(18P) CBF HARNESS-DUPLEX GND CBF HARNESS-BRUSH GND CBF HARNESS-JOINT+ENGINE CBF HARNESS-EMI WIRE CBF HARNESS-CASSETTE CBF HARNESS-SCF1 CBF HARNESS-VIDEO CBF HARNESS-SMPS Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 4 IPR-INSULATOR PANEL PMO-HOUSING PANEL U PMO-HOUSING-PANEL.L PMO-KEY-SEESAW PMO-WINDOW PANEL PMO-KEY ONLINE PMO-LCD LOCKER PBA SUB DISP-PANEL PBA SUB DISP-LCD PBA SUB DISP-PNL&LCD MEA UNIT-COVER FRONT SPRING-CS PMO-COVER-FRONT PMO-BUTTON-POWER MEA UNIT-COVER LEFT Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 5 MEA RACK-COV FU LOW SPRING-SAPERATION SPRING-FUSER EXIT BEARING-EXIT FU L BEARING-EXIT FU GEAR-EXIT LABEL(P)-CLEAN FELT PMO-GUIDE CLAW PMO-COVER FUSER LOW ROLLER-EXIT RCT-ROLLER EXIT FU MEA RACK-BRK GEAR FU RING-CS “GEAR-EXIT/U,ID” “GEAR-EXIT,IDLE(Z17)” PCT-SHEET H/R Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 6 LABEL(R)-TR CHANGE LABEL(R)-RATING LABEL(R)-S/N(STA) MEC-BARCODE PAA WOOD-PACKING ASS’Y TAPE-OPP MASKING TAPE-FILAMENT “CUSHION—CUSHION SET,N” CUSHION—SPACER BAG-PE SET CUSHION-DEV KME CUSHION-DEV CUSHION-CST INA-ACCESSORY(XAR) S/W APPLICATION-DRIVER CD MAN(BOOK)-7000N3/XAR MAN(BOOK)-USER MANUAL LABEL(R)-CUSTOMER “MAN(CARD)-WARR, STA” Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 7 Contents 1. Precautions 1-1 Safety precautions ______________________________1-1 1-2 Laser Safety Statement __________________________1-2 2-1 Abbreviations and Acronyms _____________________2-1 2. Reference Information 2-2. Diagnostic Control Unit_________________________2-3 2-2-1. Abstract ________________________________2-4 2-2-2. List of code description_____________________2-5 3.Product Information 3-1 General Specifications ________________________3-1 3-2 Controller Specifications _______________________3-2 3-3 Electrical Specifications _______________________3-2 3-4 Environmental Condition _______________________3-3 3-5 Image Cartridge(Developer) ____________________3-3...
Page 8: Table Of Contents
7-8. DISP-LCD PBA _____________________________7-9 7-9. TONER PBA _______________________________7-9 7-10. NETWORK CARD PBA(100BASE) _____________7-10 8-1 WIRING DIAGRAM ___________________________8-1 8- Bloack Diagrams 8-2 Engine Controller Block Diagram___________________8-2 8-3 Video Controller Block Diagram____________________8-3 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 9 11. Schematic Diagrams 11-1 Main Circuit Diagram_________________________11-1 11-2 Engine Circuit Diagram _______________________11-13 11-3 Cassette Circuit Diagram _____________________11-19 11-4 Panel Circuit Diagram ________________________11-20 11-5 PTL Circuit Diagram _________________________11-21 11-6 SCF Circuit Diagram _________________________11-22 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 10 10-1. Introduction The purpose of the Network Printer Card(PortThru) is to enable the Samsung Printer to function as a network printer. The PortThru is a plug-in card that plugs into the Samsung Printer. The PortThru provides a Ethernet Local Area Network interface through which the printer can be connected to the network.
Page 11 Product Information 10-2. Board Description 10-2-1 Configuration of Network Board Service Part : JC92-01119A 10-2 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 12 DGND nPrnCS DGND nPrnRE DGND nPrnWE DGND nResetIn DGND 3, 58, 59, 60 DGND 8, 12, 16, 48, 52, 56 DGND DGND Pulse Serial Connector Pulse DGND DGND DGND Samsung Electronics 10-3 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 13: Troubleshooting Flow Chart
Go to Network Error Is it possible detecting Go to PHY chip Error using syncThru from PC ? Is it possible printing Go to Shared Memory Interface Error through network ? 10-4 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 14 +5V and GND in the voltage = +5V ? Network board? Go to System Error or Network Error Go to System Error or Network Error Replace the board Section Section Samsung Electronics 10-5 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 15 Check the TMODE(pin no. 63, 64) input level : Low Check the soldering status Check the EXTMREQ(pin no. 108) input level : Low If you can't repair the board Replace the board 10-6 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 16: Network Error
Clock = 25MHz ? Check the R79, R80, R112 and CN5 Check the soldering status Check the LED1 and R106 If you can't repair the board Replace the board Samsung Electronics 10-7 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 17 = 2.5MHz or 25MHz ? check the soldering status of U165 Check the RA1, RA10, R138, R144 and R145 Check the LAN Cable If you can't repair the board Replace the board 10-8 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 18 = Low ? Check the R68, R69, R70, R72, R73, R92, R127 and R128 Check the J1 connector and DRAM(U18) If you can't repair the board Replace the board Samsung Electronics 10-9 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 19 Printer card but Printer Check the Shared Memory Cotrol signals. Refer to the Shared Memory Interface does not U22-37, 38, 39 and R68, R69 and R70 Error Section. printing. 10-10 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 20 Schematic Diagrams 11. Schematic Diagrams 11-1 Main Circuit Diagram(1/12) EDIT SIGN REF NO Samsung Electronics 11-1...
Page 21 Schematic Diagrams Main Circuit Diagram(2/12) EDIT SIGN REF NO 11-2 Samsung Electronics...
Page 22 Schematic Diagrams Main Circuit Diagram(3/12) EDIT SIGN REF NO Samsung Electronics 11-3...
Page 23 Schematic Diagrams Main Circuit Diagram(4/12) EDIT SIGN REF NO 11-4 Samsung Electronics...
Page 24 Schematic Diagrams Main Circuit Diagram(5/12) EDIT SIGN REF NO Samsung Electronics 11-5...
Page 25 Schematic Diagrams Main Circuit Diagram(6/12) EDIT SIGN REF NO 11-6 Samsung Electronics...
Page 26 Schematic Diagrams Main Circuit Diagram(7/12) EDIT SIGN REF NO Samsung Electronics 11-7...
Page 27 Schematic Diagrams Main Circuit Diagram(8/12) EDIT SIGN REF NO 11-8 Samsung Electronics...
Page 28 Schematic Diagrams Main Circuit Diagram(9/12) ED EDIT SIGN REF NO Samsung Electronics 11-9...
Page 29 Schematic Diagrams Main Circuit Diagram(10/12) EDIT SIGN REF NO 11-10 Samsung Electronics...
Page 30 Schematic Diagrams Main Circuit Diagram(11/12) EDIT SIGN REF NO Samsung Electronics 11-11...
Page 31 Schematic Diagrams Main Circuit Diagram(12/12) EDIT SIGN REF NO 11-12 Samsung Electronics...
Page 32 Schematic Diagrams 11-2 Engine Circuit Diagram(1/6) Samsung Electronics 11-13...
Page 33 Schematic Diagrams Engine Circuit Diagram(2/6) 11-14 Samsung Electronics...
Page 34 Schematic Diagrams Engine Circuit Diagram(3/6) Samsung Electronics 11-15...
Page 35 Schematic Diagrams Engine Circuit Diagram(4/6) 11-16 Samsung Electronics...
Page 36 Schematic Diagrams Engine Circuit Diagram(5/6) Samsung Electronics 11-17...
Page 37 Schematic Diagrams Engine Circuit Diagram(6/6) 11-18 Samsung Electronics...
Page 38 Schematic Diagrams Cassette Circuit Diagram Samsung Electronics 11-19...
Page 39 Schematic Diagrams Panel Circuit Diagram 11-20 Samsung Electronics...
Page 40 Schematic Diagrams PTL Circuit Diagram Samsung Electronics 11-21...
Page 41 Schematic Diagrams SCF Circuit Diagram 11-22 Samsung Electronics...
Page 42 9-1. Engine Control & Joint Board Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 43 9-2. Cassette Sensor Board Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 44 C220 C221 C222 C199 R192 C223 C200 R193 C201 R194 C202 R195 R241 C238 C230 LF11 C150 R155 C131 C115 74F157A RA11 RA12 RA10 LF20 R147 C235 C165 BAR CORDE Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 45 9-4. Panel & LCD Board Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 46 9-5. PTL (Pre Transfer Lamp) Board Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 47 9-6. SCF(Second Cassette Feeder) Board 2.65 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 48 9-7. Infrared Adapor Board Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 49 9-8. Flash SIMM Board 9-9. Postscript Board Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 50 9-10. Local Talk Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 51 9-11. Serial/IrDA Board 9-10 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 52 08- Bloack Diagrams 8-1 WIRING DIAGRAM Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 53 8-2 Engine Controller Block Diagram Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 54: Video Controller Block Diagram
STROBE EEPROM Talk AUTOFD PD(0:7) & Serial IOCS3,EIRQ1 Centronics Connector Engine I/F Connector ADDR4,5,15 PANEL 20Pin OPTION nRD,nWR IrDA USB_RST ,V_BUS & Serial Computer Engine Controller B’d LCD Display Panel Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 55 MEMO Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 56 R-CARBON “100OHM,5%,1/8W,AA,TP,1.8X3.2MM” 2001-000281 “R26,R49,R71,R81” R-CARBON “100OHM,5%,1/8W,AA,TP,1.8X3.2MM” 2001-000281 “R87,R88,R95,R102,R103” R-CARBON “100OHM,5%,1/8W,AA,TP,1.8X3.2MM” 2001-000290 “R101,R111,R121,R139,R141” R-CARBON “10KOHM,5%,1/8W,AA,TP,1.8X3.2MM” 2001-000290 “R142,R143,R181,R182,R183” R-CARBON “10KOHM,5%,1/8W,AA,TP,1.8X3.2MM” 2001-000290 “R19,R20,R21,R22,R27” R-CARBON “10KOHM,5%,1/8W,AA,TP,1.8X3.2MM” 2001-000290 “R46,R50,R58,R59,R60” R-CARBON “10KOHM,5%,1/8W,AA,TP,1.8X3.2MM” 2001-000290 “R509,R511” R-CARBON “10KOHM,5%,1/8W,AA,TP,1.8X3.2MM” Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 57 R148 R-METAL GLAZE “30Mohm,2%,2W,-,BK,30x8.5mm” 2009-001083 R174 R-METAL GLAZE “200Mohm,2%,1/2W,CM,BK,18x6mm” 2009-001084 R118 R-METAL GLAZE “30Mohm,2%,0.5W,CM,BK,18x6mm” 2009-001085 R128 R-METAL GLAZE “10Mohm,3%,1/2W,CM,BK,18x4mm” 2103-000156 VR-SEMI “10Kohm,10%,1/2W,TOP” 2103-000270 “VR1,VR3” VR-SEMI “20Kohm,10%,1/2W,TOP” 2201-000003 “C50,C58” “C-CERAMIC,DISC” “0.068nF,10%,2kV,SL,TP,7x5,5” Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 58 JC39-40511A “J1,J2,J5,J6,J7” CBF HARNESS- “ML-80,JUMPER,AWG22,52mm,SILVER” JC39-40511A “J101,J102,J103,J104,J105” CBF HARNESS- “ML-80,JUMPER,AWG22,52mm,SILVER” JC39-40511A “J106,J107,J108,J109,J110” CBF HARNESS- “ML-80,JUMPER,AWG22,52mm,SILVER” JC39-40511A “J111,J112,J113,J114,J115” CBF HARNESS- “ML-80,JUMPER,AWG22,52mm,SILVER” JC39-40511A “J116,J117,J118,J119,J120” CBF HARNESS- “ML-80,JUMPER,AWG22,52mm,SILVER” JC39-40511A “J121,J123,J124” CBF HARNESS- “ML-80,JUMPER,AWG22,52mm,SILVER” Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 59 JC39-40511A “R83,R185,R503” CBF HARNESS- “ML-80,JUMPER,AWG22,52mm,SILVER” JC41-00043A PCB-ENGINE “ML-7300,FR-1,1L,1.6T,289x247mm” JC70-10909A “TP1,TP2,TP3,TP4,TP5” IPR-CONNECTOR HV “ML-80,AL,T0.8,-” JC96-01379A “Q14,Q15” ELA HOU-H/SINK “ML-7000/NEC,NEC,USA,HEAT-SINK,ENGINE B’D,” JC96-01944A ELA UNIT-HEAT-SINK (526L)“ML-5000A,SAMSUNG,KOREA,-,-,-,-” 0502-001124 Q203 TR-POWER “KSD526,NPN,30W,TO-220,BK,120-2” 6003-000119 SCREW-TAPTITE “BH,+,B,M3,L8,CBLACK,SWRCH18A” JC62-30001A HS202 HEAT SINK-TRANS “ML-80,AL,-” JC96-01945A ELA UNIT-HEAT-SINK (526S)“ML-5000A,SAMSUNG,KOREA,-,-,-,-” 0502-001124...
Page 60: Main Controller Pba
R-CHIP “180OHM,5%,1/10W,DA,TP,2012” 2007-000468 “R18,R19,R20,R21,R22,R23” R-CHIP “1KOHM,5%,1/10W,DA,TP,2012” 2007-000468 “R24,R25,R26,R34,R35,R42” R-CHIP “1KOHM,5%,1/10W,DA,TP,2012” 2007-000468 “R43,R44,R138,R202,R236,R237” R-CHIP “1KOHM,5%,1/10W,DA,TP,2012” 2007-000493 R145 R-CHIP “2.2KOHM,5%,1/10W,DA,TP,2012” 2007-000781 “R104,R105,R107,R114,R115,R116” R-CHIP “33OHM,5%,1/10W,DA,TP,2012” 2007-000781 “R117,R119,R121,R126,R137,R141” R-CHIP “33OHM,5%,1/10W,DA,TP,2012” 2007-000781 “R12,R37,R38,R39,R40,R47” R-CHIP “33OHM,5%,1/10W,DA,TP,2012” Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 61 “C-CERAMIC,CHIP” “0.47nF,5%,50V,NP0,TP,2012” 2203-001158 C168 “C-CERAMIC,CHIP” “0.068nF,5%,50V,NP0,TP,2012” 2404-000128 “C60,C131” “C-TA,CHIP” “10uF,20%,16V,-,TP,6032,-” 2404-000468 “C18,C50,C73,C114,C165” “C-TA,CHIP” “33uF,20%,16V,GP,TP,7343,-” 2404-000468 “C195,C210,C224” “C-TA,CHIP” “33uF,20%,16V,GP,TP,7343,-” 2804-000380 OSC2 OSCILLATOR-CLOCK“50MHz,100ppm,10 TTL,-,5V,40mA” 2804-001387 OSC1 OSCILLATOR-CLOCK“78.45496MHz,50ppm,15pF&10TTL,BK,5V,40mA” 2901-001178 “LF1,LF2,LF4,LF5,LF8,LF9” FILTER-EMI SMD “25V,2A,-,100000pF,2x1.25x1mm,TP” Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 62 CONNECTOR-HEADER“-,20P,2R,2mm,STRAIGHT,SN” 3711-003981 CONNECTOR-HEADER“BOX,28P,2R,2mm,STRAIGHT,SN” 4701-001020 FREQ-ATTENUATOR“5-80MHz,15dB,-,0.03W” JC09-00001A IC MICRO COMPUTER-CPU “ML-6100,IBM25EMPPC603EPG-100,CQFP,240P,32X32MM” JC11-10507A IC MASK ROM-HIGH“ML-165,KM23C8105DG,SOP,44P,600” JC11-10510A “IC MASK ROM-PCL6,LOW”“ml-165,KM23C8105DG,SOP,44P,600” JC13-00002A IC-ASIC-SPGP1 “ML-7000,SPGP1,QFP,240P,34.6X4.15BSC” JC13-00003A IC-ASIC-HYPER “ML-7000,SOP-9801A,PQFP,100P,20X14MM” JC41-00044A PCB-CONTROLLER“ML-7300,FR-4,4L,1.6T,180x210mm” JF68-30527N “U3,U13” LABEL(R)-BAR CODE“SF500,PY,20X10,T0.1,WHT” Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 63: Flash Memory Pba
“74ACT138,DEMUX,SOP,16P,150MIL,” 1107-001121 “U1,U2,U3,U4” IC-FLASH MEMORY“29F800,1Mx8/512Kx16Bit,TSOP,48P,787MIL, 70nS,5V,10%,PLASTIC,0to+70C,100uA,CMOS,ST” 2007-000029 “R1,R3,R9,R10” R-CHIP “0OHM,5%,1/10W,DA,TP,2012” 2007-000290 “R4,R5” R-CHIP “100OHM,5%,1/10W,DA,TP,2012” 2007-000300 “R7,R12,R13,R14,R15” R-CHIP “10KOHM,5%,1/10W,DA,TP,2012” 2007-000781 R-CHIP “33OHM,5%,1/10W,DA,TP,2012” 2203-000206 “C1,C2,C3,C4,C5” “C-CERAMIC,CHIP” “100nF,10%,50V,X7R,TP,2012” JC41-00048A PS-3 PCB PCB SUB-POSTSCRIPT“ML-6060,FR-4,4LAYER,1.6T,108x36mm” Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 64: Disp-Panel Pba
TR-SMALL SIGNAL “KSC945-G,NPN,250mW,TO-92,TP,20” 0601-001276 LED-IR “ROUND,5,20,5,-,-” 0603-001025 PHOTO-TR “NPN,30V,4V,50mA,150mW,BK” 2001-000027 R-CARBON “100OHM,5%,1/4W,AA,TP,2.4X6.4MM” 2001-000281 R-CARBON “100OHM,5%,1/8W,AA,TP,1.8X3.2MM” 2001-000290 “R2,R4,R5” R-CARBON “10KOHM,5%,1/8W,AA,TP,1.8X3.2MM” 2001-000734 R-CARBON “4.7KOHM,5%,1/8W,AA,TP,1.8X3.2MM” 2201-000469 “C-CERAMIC,DISC” “330pF,10%,500V,Y5P,TP,6x4,5” JC41-10520A PCB-TONER “ML-165,FR-1,1L,T1.6mm,44*34.5m” JC70-10999A “5V,T,G” IPR-ELECTRODE_PCB“ML-6000,C5201P-1/2H,T0.2,-” Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 65: Network Card Pba(100Base)
R123 “R-CHIP;33OHM,5%,1/10W,DA,TP,20” 2007-000781 R104 “R-CHIP;33OHM,5%,1/10W,DA,TP,20” 2007-000781 R149 “R-CHIP;33OHM,5%,1/10W,DA,TP,20” 2007-000953 R109 “R-CHIP;49.9OHM,1%,1/10W,DA,TP,” 2007-000953 R108 “R-CHIP;49.9OHM,1%,1/10W,DA,TP,” 2007-001067 R110 “R-CHIP;6.8KOHM,1%,1/10W,DA,TP,” 2007-001092 R107 “R-CHIP;620OHM,5%,1/10W,DA,TP,2” 2007-001092 R106 “R-CHIP;620OHM,5%,1/10W,DA,TP,2” 2007-001133 R103 “R-CHIP;68OHM,5%,1/10W,DA,TP,20” 2007-001133 R113 “R-CHIP;68OHM,5%,1/10W,DA,TP,20” 7-10 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 66 2203-000476 C169 “C-CERAMIC,CHIP;1000nF,+80-20%,” 2203-000476 “C-CERAMIC,CHIP;1000nF,+80-20%,” 2203-001002 C184 “C-CERAMIC,CHIP;0.047nF,5%,50V,” 2203-001002 C182 “C-CERAMIC,CHIP;0.047nF,5%,50V,” 2203-001002 C183 “C-CERAMIC,CHIP;0.047nF,5%,50V,” 2404-000128 C186 “C-TA,CHIP;10uF,20%,16V,-,TP,60” 2404-000128 “C-TA,CHIP;10uF,20%,16V,-,TP,60” 2404-000128 “C-TA,CHIP;10uF,20%,16V,-,TP,60” 2703-000125 “INDUCTOR-SMD;10uH,10%,1.25x2x1” 2703-000125 “INDUCTOR-SMD;10uH,10%,1.25x2x1” 3301-001312 R144 “CORE-FERRITE BEAD;AB,220OHM,2X” 7-11 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 67 Electrical Parts List NETWORK CARD PBA(100BASE) SEC CODE LOCATION NO. Q’ty DESCRIPTION 3301-001312 R138 “CORE-FERRITE BEAD;AB,220OHM,2X” 3301-001333 “CORE-FERRITE BEAD;AB,120OHM,2X” 3301-001333 “CORE-FERRITE BEAD;AB,120OHM,2X” JC13-00004A “IC-ASIC-NPC;ML-7000N3,NETBRIDG” JC41-00011A 7-12 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 68 6-5. MP Tray Ass’y 6-6. Pick Up Ass’y 6-7. Fuser Ass’y 6-8. Shield Ass’y 6-9. Bracket Duplex Ass’y 6-10. Bracket Motor Ass’y 6-11. Frame SCF Ass’y 6-12. Cassette SCF Ass’y Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 69: Main Ass'y
Exploded Views & Parts List 6-1 Main Ass’y Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 70 MEA-RACK FEEDER CST JC97-01023C MEA RACK-PICK UP JC97-01039A PMO-FRAME BASE PMO-COVER-RIGHT JC72-40941E MEA RACK-COVER REAR JC97-01026B 220V ELA HOU-FUSER ASS’Y JC96-02033A 110V ELA HOU-FUSER ASS’Y JC96-02034A MEA RACK-CAST SCF MEA RACK-SCF AS’Y Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 71 Exploded Views & Parts List 6-2 Cover Ass’y 1-1-1 1-1-1-7 1-1-1-1 1-1-1-3 1-1-1-6 1-1-1-2 1-1-1-5 1-2-7 1-1-1-4 1-2-6 1-2-5 1-2-1 1-2-4 1-1-3 1-2-3 1-2-2 1-1-4 1-2-8 1-2-9 1-1-2 1-2-10 1-2-11 1-2-6 2-10 2-11 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 72 MEA RACK-COVER LEFT JC97-01025B PMO-COVER LEFT PMO-AIRDUCT PMO-COVER RIGHT JC72-40941E MEA RACK-COVER FRONT JC97-01024B PMO-COVER FRONT PMO-LINK TRAY JC72-40957D PMO-BOTTOM POWER SPRING-CS PMO-STRIPE JC72-41004A SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 73 Exploded Views & Parts List Cover Ass’y Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 74 Location NO. Description SEC.Code Q’ty Remark MEA RACK-TRAY MP JC97-01038B PMO-TRAY-MP PMO-SIDE GUIDE TRAY ICT-SHEET SIDE GUIDE MEA UNIT-COVER TRAY JC97-01037B PMO-SUBTRAY-FIRST PMO-SUBTRAY-SECOND PMO-COVER TRAY PMO-LINK TRAY JC72-40957D PMO-COVER COLOR Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 75: Frame Ass'y
Exploded Views & Parts List 6-3. Frame Ass’y Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 76 PMO-HOLDER G/PAPER IPR-GUIDE P/FRONT JC70-10964A GEAR-P/UP DRIVE IPR-GROUND BRKT GEAR IPR-GROUND OPC FAN-DC 3103-001047 SCREW-TAPTITE CBF HARNESS-SMPS JC39-40532A UNIT-LSU JC59-00005A CBF HARNESS-CASSETTE JC39-40524A IPR-FRAME ICU PMO-CAP WIRE CBF HARNESS-MP GND JC39-40538A Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 77 MEA UNIT-HOLDER TR : R JC97-01404A 64-3-1 PMO-BUSH 64-3-2 SPRING-TR_R 64-3-3 SPRING-PLATE TR 64-3-4 PMO-HOLDER TR R 64-4 GEAR-TRANSFER JC66-40947A 64-5 RING-E PHOTO-INTERRUPTER ELA HOU-PTL JC96-01978A 66-1 PBA SUB-PTL 6-10 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 78 ELA HOU-FUSER TERMINAL JC96-01980A 69-1 CBF HARNESS-FUSING JC39-40522A 69-2 IPR-TERMINAL FU 69-3 PMO-HOUSING TERMINAL GEAR-DP,IDLE SPRING-CLUTCH GEAR-EXIT,IDLE(Z17) RING-CS GEAR-EXIT/U,ID JC66-40211B SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE SCREW-MACHINE SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE SCREW-MACHINE SCREW-TAPTITE SCREW-TAPTITE Samsung Electronics 6-11 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 79: Cassette Ass'y
Exploded Views & Parts List 6-4. Cassette Ass’y 6-12 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 80 IPR-PLATE KNOCK UP IPR-PLATE SPR LOCK IPR-PLATE SUB K/UP IPR-SPR PLATE G/SIDE SPRING-LEVER SPRING-PLATE K/UP SPRING-SUB PLATE RPR-PAD CST ICT-SHAFT SPR K/UP LABEL(R)-INSTRUCTION SPRING-LOCKER,PLATE PMO-LOCKER PLATE RING-E SCREW-MACHINE SCREW-TAPTITE SCREW-TAPTITE Samsung Electronics 6-13 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 81: Mp Tray Ass'y
Exploded Views & Parts List 6-5. MP Tray Ass’y 9 10 6-14 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 82 PMO-HOLDER PAD MP RPR-FRICTION PAD MP SPRING-F/P MP PMO-SUB GUIDE MP PMO-ACTUATOR EMPTY PMO-GUIDE RING IPR-K/UP PLATE MP RPR-PAD KNOCK UP MP PMO-BUSHING K/UP MP SPRING-KNOCK UP MP RING-E SCREW-TAPTITE SCREW-TAPTITE Samsung Electronics 6-15 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 83: Pick Up Ass'y
Exploded Views & Parts List 6-6. Pick Up Ass’y 6-16 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 84 IPR-SHAFT FEED IDLER PMO-ROLLER FEED L PMO-ROLLER FEED S SPRING-FEED SMALL PMO-HOLDER FEED L ICT-SHAFT IDLE LARGE SPRING-FEED LARGE GEAR-P/UP DRIVE WASHER-PLAIN RING-CS ICT-SUB SHAFT P/UP IPR GROUND FEED SCREW-TAPTITE Samsung Electronics 6-17 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 85 Exploded Views & Parts List 6-7 Fuser Ass’y 6-18 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 86 PMO-COVER FUSER LOW ROLLER-EXIT SPRING-FUSER EXIT RCT-ROLLER EXIT FU GEAR-EXIT/U,ID GEAR-EXIT,IDLE(Z17) PMO-BRKT FUSER GEAR LAMP-HALOGEN 220V 4713-001072 220V 110V LAMP-HALOGEN 110V 4713-001073 RING-CS GEAR-EXIT SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE Samsung Electronics 6-19 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 87: Shield Ass'y
Exploded Views & Parts List 6-8. Shield Ass’y 6-20 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 88 SPRING-FRONT DP IPR-BRKT SUPPORTER CBF HARNESS-DPLX GND RPR-CUSHION GUIDE IPR-BRKT IDLE ROLLER PMO-IDLE ROLLER IPR-SHEET FRONT DP PPR-INSULATOR PCU PMO-ACTUARTOR REAR. PD IPR COVER PCB SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE SCREW-TAPTITE Samsung Electronics 6-21 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 89: Bracket Duplex Ass'y
Exploded Views & Parts List 6-9. Bracket Duplex Ass’y 6-22 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 90 BELT-TIMMING IPR-BRKT DUPLEX IPR-LINK DUPLEX ICT-SHAFT SWING PMO-BEARING LARGE DP “PMO-BEARING SMALL,DP” ICT-SHAFT BELT “GEAR-DP,IDLE” GEAR-DUPLEX “GEAR-EXIT/U,ID” PMO-BRKT GEAR LOWER SPRING-SOLENOID DP SOLENOID-DUPLEX ICT-SHAFT BELT2 RING-CS RING-E SCREW-TAPTITE SCREW-TAPTITE Samsung Electronics 6-23 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 91: Bracket Motor Ass'y
Exploded Views & Parts List 6-10. Bracket Motor Ass’y 6-24 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 92 GEAR-IDLE 27 GEAR-FUSER DRIVE GEAR-RDCN OPC GEAR-118/23 GEAR-IDLE FU GEAR-FEED DRIVE GEAR-OPC DRV(12) GEAR-OPC DRV2 IPR-BRACKET(MOTOR 21) IPR-BRACKET MOTOR J MOTOR-STEP 3101-001226 CBF HARNESS MOTOR RING-E WASHER-PLAIN SCREW-MACHINE SCREW-MACHINE Samsung Electronics 6-25 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 93: Frame Scf Ass'y
Exploded Views & Parts List 6-11. Frame SCF Ass’y 6-26 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 94 CBF HARNESS-SCF CST CBF HARNESS-SCF OPT CBF HARNESS-SCF FEED PBA SUB-SCF OPT PBA SUB-CASSETTE FOOT-RUBBER SCF “SPRING-IDLE,SCF” IPR-SCF MOTOR 1 IPR-INSULATOR SCF CBF HARNESS-SCF GND 1001 SCREW-MACHINE 1002 SCREW-MACHINE 1007 SCREW-TAPTITE Samsung Electronics 6-27 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 95 SCREW-TAPTITE 1007 SCREW-TAPTITE 1015 SCREW-TAPTITE 1015 SCREW-TAPTITE 1015 SCREW-TAPTITE 1015 SCREW-TAPTITE 1015 SCREW-TAPTITE 1015 SCREW-TAPTITE 1015 SCREW-TAPTITE 1015 SCREW-TAPTITE 1015 SCREW-TAPTITE 1022 RING-E 1022 RING-E 1022 RING-E 1023 RING-E 6-28 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 96: Cassette Scf Ass'y
Exploded Views & Parts List Exploded Views 6-12. Cassette SCF Ass’y Samsung Electronics 6-29 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 97 SPRING-SUB PLATE ICT-SHAFT SPR K/UP PMO-LEVER PAPER S PMO-SUB GUIDE CAST PMO-WINDOW PAPER 1001 SCREW-MACHINE 1007 SCREW-TAPTITE 1007 SCREW-TAPTITE 1007 SCREW-TAPTITE 1013 SCREW-TAPTITE 1022 RING-E 950-1 MEA-RACK FRAME PAD 6-30 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 98: Troubleshooting
If not improved, replace image cartridge. Partial White Image 1. OPC Drum scar or particle 1. Clean OPC Drum (not periodic) 2. Check the cartridge life 2. Replace image cartridge Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 99 1. Refer to HVPS output spec All Black Image 2. Check the terminal contact - Replace the engine board 3. Compare new video board with 2. Replace terminal present one 3. Replace video board Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 100: Transfer Roller
7. Select the Diagnostic mode and measure HVPS output. *Recommanded Test Equipment - DVM -High Voltage Probe CHARGER TRANSFER Transfer Roller BIAS P T L (LED-Array) SUPPLY INSERT IMAGE CARTRIDGE Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 101 1. Cover open unit defect -Refer to “4-6” Cover open 2. Cable damage and connection 2. Replace cover open switch 3. Engine board defect assembly, and connect properly. 3. Replace the engine board. Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 102 1. Connect the cable correctly or Video controller. replace the cable. Internal Error 20 (Engine board CN10 Video controller - Refer to “4-4” (Engine Error) board J11.) 2. Replace Engine board. 2. Engine board defect. Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 103 2. Check the Feed Sensor actuator 2. Replace Feed Sensor actuator. on feed sensor” 3. Check the paper installation in - Refer to “4-11, 6-2” cassette. 3. Reinstall paper properly. Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 104 1. Replace the paper empty sensor on - Refer to DCU mode “07” S.C.F board. 2. Check the paper empty sensing actuator 2. Replace MP paper empty sensor for SCF. actuator. Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 105: Connector Pin Assignment
PULSE INTERFACE 11,13 AGND AGND AGND MP_PAPER TONER 15,17 DGND DGND DGND CMD_SCF PULSE PULSE OPT_CLK PULSE PULSE THERMISTOR THERMISTOR THERMISTOR DCU_DATA PULSE PULSE DCU_CLK CLOCK CLOCK DGND DGND DGND Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 106 INTERFACE OPT_CLK PULSE PULSE SCF_READY DGND DGND DGND CN502 +24V +24V +24V MP_CLUTCH MP_CLUTCH +24V CN504 Q_LAMP Q_LAMP MP_SENSOR CN505 DGND DGND DGND MP_SENSOR CN506 TONER TONER AGND AGND AGND Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 107 DGND DGND DGND KEY_DEV DGND DGND DGND EBUSY 2,17,19,20,21 DGND DGND DNGD 22,23,24 EMSG EXIT_PAP CCLK PULSE CN10 PRINT VIDEO CONTROLLER CPRDY INTERFACE PSYNC READY HSYNC 13,15,16,18 25,27,28 CMSG 5-10 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 108 MOT_PA* +24V PULSE MOT_PB* +24V PULSE DCU_IN/OUT PULSE PULSE DCU_CLK CLOCK CLOCK DGND DGND DNGD +24V +24V +24V PICK UP CLUTCH +24V CASET_1 CASET_2 CASSETTE CASET_3 DGND DGND DNGD Samsung Electronics 5-11 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 109: Troubleshooting Of Video Controller
Correct the setting status of printer on test page? Is it possible receving data Go to Parallel Interface Error from PC? Go to Pinting Error Input Data Printing? 5-12 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 110 5V and GND in input voltage=5V? the Video board? Refer to the No Power Replace the LCD Ass’y Repair the board sectino of engine board of display panel troubleshooting Samsung Electronics 5-13 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 111 U27 : active low Check the ADS*(pin No.66) input pulse of U10 : active low If you can’t repair the board Replace the board 5-14 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 112: Engine Error
LSYNC*(pin No.95) of U23 Check the input pulse of the VCLK* (pin No.100) and PSYNC*(pin No.102) and LSYNC*(No.103pin) of SPGP1(U27) If yoy can’t repair the board Replace the board Samsung Electronics 5-15 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 113 If you can’t repair the board. Replace the board Printing Error Printing Error Check the soldering status of DRAM (U18, U24) Check. the soldering status of SPGP1 (U27) Go to system error 5-16 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 114 *Please refer to the user’s manual. General desc- *If you can’t fix the trouble of video controller riptions of Replace the board troubleshooting board, replace the video board by the verified board. Samsung Electronics 5-17 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 115 Troubleshooting MEMO 5-18 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 116 Disassembly 4. Disassembly 4-1 Front View Control Panel Cover Open Power Switch Cover Tray Cover Front Paper Level Indicator 4-2 Rear View Cover Rear Controller Cassette Power Inlet Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 117 Please see the hook which locks the cabinet to the frame, right hand should first grab the hook and pull it out for releasing the hook from the frame. Hook Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 118 Disassembly The left hand should slide the Cover Right to the backward. Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 119 Left. Pull the Hook and release it from the frame. Screw Hook Slide the Cover Left to the backward with pulling the hook out. The Cover Left can be easily removed. Pull Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 120 Open the Cover Open. Remove two screws. Cover Top Screw Screw Cover Main See the hooks. Push the hooks up and pull them upward. With holding Cover Main, remove the panel wire. Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 121 Detach the stripe by pushing the stripe. There is a hook holding the stripe. Stripe Cover Rear After detaching the stripe from the Cover Rear, Release the Cover Rear from the hinge. Hinge Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 122 Unplug the panel cable and engine I/F cable with care and remove the screws from the frame. Panel Cable RAM Simm Socket Controller Board Engine I/F cable Flash SIMM or Frame ICU Postscript SiMM Socket Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 123 You can see the Frame ICU. Parallel I/F Reserved for Network Ground ICU Reserved for Serial Screw Connector for Network Hyper chip ASIC (SPGP1) Video Controller Board Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 124 Open the Cover Rear and see the screws and unscrew and remove the Cover pcb. Cover PCB for engine B’d Screw After removing the Cover pcb, unplug the Thermistor connector from the Engine Board. Thermistor connector Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 125 “Fuser ass’y” for goods => Do use the exclusive “Fuser ass’y” in the ML-7300 model (ML-7300 model is different from ML-7000 & ML-7050) 4-10 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 126 Guide Rear out like figure. In order to remove Guide Rear, opening the Guide Rear out like figure and pull out hinge of Guide Rear. Guide Rear Samsung Electronics 4-11 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 127 Bracket Motor Ass’y You can see the Bracket Motor ass’y. Motor and several gears are assembled in one gear bracket. Motor < Bracket Motor Ass’y > 4-12 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 128 Refer to SMPS & Bracket Duplex Ass’y disassembly (4-12) Detach two Connectors form the SMPS. Remove 2 screws and detach the unit from the frame. Cover Open Switch unit Samsung Electronics 4-13 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 129 Remove the screw of Bracket Support and tension spring. Pickup Ass’y Tension Spring Screw Lift Guide Front Duplex and remove the 3 mounting screws of Pickup Ass’y. Guide Front Duplex Screws 4-14 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 130 In order for LSU disassembling, disassemble the Cover Main, you should take off the left and right cover. There is wiring protection cover(Cap Wire LSU)for LSU wires. Remove Cap wire LSU. Samsung Electronics 4-15 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 131 LSU lens. => If not , no image is occurred , because laser beam does not transmit the slim film. 4-16 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 132 See the Links which hold the MP tray in the both side. Hold the Links and pull it to the arrow direction. Hold the MP tray and pull it to the arrow direction. Samsung Electronics 4-17 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 133 Disassembly Screw Hook Cover Front After detaching the Tray MP, see the screws and remove them. Remove the hook and release the Cover Front by releasing the hook. 4-18 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 134 After removing Cover Front, detach the MP ass’y by unscrewing 4 screws. Before detaching MP Ass’y, unplug the MP solenoid and MP sensor connector from the Joint Board. < MP Ass'y > Samsung Electronics 4-19 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 135 Cover Top. Control panel consists of LCD ass’y and Key&LED ass’y. Remove Key&LED ass’y and remove LCD ass’y. 4-20 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 136 After removing Key&LED ass’y, release the hook of LCD ass'y from Cover Top and see the hinge for LCD ass’y in the cabinet and release them. You should spread the hinge of LCD ass’y. But be careful not to damage the hinge. Samsung Electronics 4-21 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 137 Open the Cover Rear and remove the Cover PCB. Screw wires After removing Cover Rear, disconnect all wires from the PCU. and then remove the screw of Ground Shield SMPS, Turn over the printer. 4-22 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 138 After turning over, remove Bar cross Bottom by unscrewing them 8 screws. Next remove the CST Sensor and remove the screws in the PCU which are black colored screws. Samsung Electronics 4-23 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 139 ‘Video I/F’s’. Unplug them with care. Be careful not to be hurt to your hands when you disconnect the wires because the connection is tight and you may pull the connectors strongly. Screw 4-24 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 140 Above is to show the disassembled PCU and Frame. PCU Ass'y has some sensor, some actuator, solenoid and Shield plate and HVPS circuit. Service man could ask the Ass'y or repair parts. Samsung Electronics 4-25 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 141 Remove four screws and separate SMPS from the frame. You can see the fuser AC connector and +5V, +24V connector which are connected to the microswitches. Detach the wires from the SMPS. Samsung Electronics 4-26 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 142 The Bracket Duplex Ass’y is located in the left upper side. Remove the screws and detach the ass’y from the Frame. In order to remove the connector of Solenoid, first remove Engine Controller Board. Refer to Engine Controller Board disassembly (4-11) Samsung Electronics 4-27 Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 143 Open the Cover Top, you can see colored levers at each side of Transfer Roller, push the levers which is attached in the Holder transfer Roller to release the Ass’y. 4-28 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 144: Product Information
•Printing : Less than 50 dB Acoustic Noise •Sleep mode : Background Noise •110V : UL, CSA,FDA,FCC Part15 Certification & •220V : TUV,CE Compliance •Enable Power save mode •Enable Toner save mode Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 145: Controller Specification
Input voltage range 90-132 VAC 189-264 VAC Nominal frequency 50/60 MHz 50/60 MHz Frequency tolerance +3Hz +3Hz •340W Avg or less Power •Sleep mode Consumption : 30W Avg or less Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 146: Environmental Condition
• Non-magnetic Contact Developing Developing • Conductive Roller Charging Charging • Exchange the Developer Toner supply Method • Enable Toner checking sensor •0.1PPM or less Ozone 8hours •Single cartridge Style Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 147: Paper Handling Specifications
A4 or Letter Label paper •Feed capacity Item Description Cassette 500sheets Paper 100 sheets Transparencies 30 sheets MP tray Envelopes 10 sheets Card stocks 10 sheets Labels 25 sheets Option Cassette 500sheets Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 148: Reference Information
INTA interrupt Acknowledge sync synchronous or synchronization Interrupt tach tachometer INTR Interrupt request collector supply voltage(dc) Input and Output vert vertical multiplex Vp-p peak-to-peak voltage variable resistor Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 149 Voltage Controlled Oscillator Super Twisted Nematic VESA Video Electronics Standard Association Serial Communications Video Graphics Array Controller Thin Film Transistor Very High Frequency Tri-State Crystal Oscillator TSOP Thin Small Outline Package Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 150: Diagnostic Control Unit
MANUAL PRINT MODE LSU NOT READY DCU MODE DOWN SHIFT STOP ENTER IF YOU ENTER THE DCU MODE TURNTHEPOWER SWITCH ON WITH HOLDING THREEKEYS DOWN < Fig 1-1. ML-80 DCU > Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 151 FAN SPEED TEST SLEEP MODE PTL TEST NO PAPER or CASSETTE PAPER JAM “0” PAPER JAM “1” PAPER JAM “2” DUPLEX JAM “1” DUPLEX JAM “2” OUT BIN FULL LSU NOT READY Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 152 Lighten 3rd LED LSU Ready and LD On Lighten 1, 2nd LED SHIFT+STOP LSU Motor OFF Increment DCU Code No. (06, Pickup Clutch) SHIFT+DOWN Decrement DCU code No. (04, Dev) Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 153 Bright Light 2nd LED ON/OFF SHIFT + STOP Light OFF 3nd LED ON/OFF Increment DCU Code No. (00, Main Motor) SHIFT + DOWN Decrement DCU Code No. (16, Fan Speed TEST) Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 154: Safety Precautions
11. Do not touch the surface of the photo-sensitive drum as marks ro scratches may impair print quality. 12. Do not expose the drum unit to direct light for prolonged periods. 13. Use only standard papers, OHP films and approved envelopes. Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 155: Laser Safety Statement
LASER SÄTELYLLE ÄLÄ KATSO SÄTEESEEN. LSU caution label is located on the LSU top side CLASS 1 LASER PRODUCT LASER KLASSE 1 LUOKAN 1 LASERLAITE APPAREIL A LASER DE CLASSE 1 TO IEC 825 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.com...
Page 156 ELECTRONICS Samsung Electronics Co., Ltd. September. 2001 Printed in Korea VERSION NO. : 1.02 P/N. JC-0024A Download Service Manual And Resetter Printer at http://printer1.blogspot.com...

Samsung ML-7300 series Service Manual

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