Specifications

ManualsBrandsSamsung ManualsComputer equipmentML-6050

SERVICE

LASER PRINTER

ML-6050

QwikLaser 6050

LASER PRINTER CONTENTS

1. Precautions

2. Specifications

3. Reference Information

4. Disassembly and Reassembly

5. Troubleshooting

6. Exploded Views and Parts List

7. Electrical Parts List

8. Schematic Diagrams

MANUAL

Download Service Manual And Resetter Printer at http://printer1.blogspot.com

Summary of content (140 pages)

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LASER PRINTER ML-6050 QwikLaser 6050 SERVICE LASER PRINTER MANUAL CONTENTS 1. Precautions 2. Specifications 3. Reference Information 4. Disassembly and Reassembly 5. Troubleshooting 6. Exploded Views and Parts List 7. Electrical Parts List 8. Schematic Diagrams Download Service Manual And Resetter Printer at http://printer1.blogspot.
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8. Schematic Diagrams VCC A(0:23) VCC_U1 C160 C10 C9 C12 C11 C13 C14 C15 33UF/16V 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF C16 C17 C18 C19 C20 C22 C21 C24 C23 C25 C47 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.
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Schematic Diagrams Engine Controller (2/6) 1 2 3 4 DCU_DATA DCU_CLK SEL_CASSET SCF_MOTOR SCF_CLUTCH SCF_EMPTY SLCON4P-DCU C42 1NF 50V C41 1NF 50V +5V R282 R283 R284 R285 +24V +5V +5V D228 1N4148 D229 1N4148 D230 1N4148 D231 1N4148 D224 1N4148 D225 1N4148 D226 1N4148 D227 1N4148 R61 5.6K 1/8 R60 5.6K 1/8 +5V R59 5.6K 1/8 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Schematic Diagrams T204 +24VS1 +18V +18V R234 86.6K 1/8 R262 9.1K 1/8 U203-1 2 1 BIASPWM R412 30M BR D210 ESJA57-04 1 10 R239 3.3M 1/2 R226 3.3M 1/2 R229 3.3M 1/2 2 LM324 R253 27K 1/8 R269 75K 1/8 C209 100NF 50V R223 47K 1/8 2 1 Q2 Q0 3 Q1 R224 47K 1/8 C220 100PF 2KV R231 390 1/8 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Schematic Diagrams Engine Controller (4/6) E +24VS2 R44 1K 1/8 +24VS1 FUSER R18 1K 1/8 +5V C37 100NF 50V +5V SLEEP R41 1K 1/8 9 B R40 5.6K 1/8 R49 1K 1/8 C D221 1N4148 Q208 KSC1008 E 74LS06 R58 1K 1/8 R35 5.6K 1/8 R47 4.7K 1/8 D222 1N4148 R57 3.3K 1/8 C C43 1NF Q8 50V KSC1008 E +5V R16 150 1/8 CLUTCH U5-1 B R20 510 1/8 1 D1 1N4003 B R19 5.6K 1/8 Q4 KSC1008 E LM393 CN4 BDCORE THERM FEED_CLUCH E 2 Q1 Q0 2 Q2 B 1 C504 100UF 50V C 3 R292 2.
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Schematic Diagrams Engine Controller (5/6) R248 C 56K 1/8 R249 33K 1/8 R240 68K 1/8 2 R243 470K 1/8 D216 1N4003 U201-2 LM324 5 Q1 Q0 6 Q2 R251 1.2K 1/8 R245 12.1K 1/8 C224 33NF 50V C225 2.2nF 50V R247 78.7K 1/8 D217 1N4003 R236 680K 1/8 7 D209 1N4148 R256 2.2K 1/8 R225 ZD201 ZD202 2.2K UZ5.6BCB UZ7.5BM 1/8 C221 2.
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Schematic Diagrams Engine Controller (6/6) Download Service Manual And Resetter Printer at http://printer1.blogspot.com F101 250V/T5A FH2 BD152 BDCORE 4 R105 470k 1/2 1 C104 2.2NF 250V 3 C107 150UF 400V DB101 D3SBA60 R106 100K ZD601 1N5274B 1/2 [V2] [V1] C108 10NF 250V R108 47K 2W 12 R107 200K 1/2 SW152 M_SW FH3 R151 330 1/8 +24VS1 1 1 R153 3.
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Schematic Diagrams 8-2. Controller Diagram(1/10) VCC A(0:23) C160 C10 C9 C11 C12 C13 C14 C15 33UF/16V 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF C16 C17 C18 C19 C20 C22 C21 C24 C23 C25 C47 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 0.1UF 20 21 22 46 61 62 80 95 103 113 142 143 167 168 183 184 199 200 D(0:31) VCC VCC VCC C7 R44 10K R43 10K U30 2 8 _RIN VCC 1 7 REF SEN 3 5 CT _RES 4 6 GND RES R42 470 C6 0.1UF R130 1K 0.
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Schematic Diagrams Controller Diagram(2/10) Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Schematic Diagrams Controller Diagram(3/10) Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Schematic Diagrams VCC R34 10 LF1 FILTER_22NF 1 3 2 U29 OSC1 4 C8 2 VCC CLK GND NC R33 3 1 0.1UF 68 1 OSCIN VDD C177 0.1UF C48 2 OSCOUT 68PF DXO-1H-66M R139 R129 2.2K LF VSS C166 100PF 22PF 10 R140 1K 4 MODOUT_RS1 C176 VCC R143 C162 10UF 10K 3 REF_OFF 7 REFOUT_RS0 8-10 LF5 FILTER_22NF 1 3 2 8 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Schematic Diagrams CEN_5V VCC LF3 FILTER_22NF 1 3 2 C3 5V1 R97 1K R99 0 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Schematic Diagrams Download Service Manual And Resetter Printer at http://printer1.blogspot.com Controller Diagram(6/10) VCC J11 1 2 3 4 C351 1000PF HEADER4 C352 1000PF J5 VCC VCC R265 3.3K R264 5.1K R271 10K R270 10K R266 3.
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Schematic Diagrams E2PROM_DI E2PROM_SK 5 U35-3 6 9 74F14 U35-4 8 VCC VCC R53 U12 1K 74F14 3 4 2 6 7 1 E2PROM_DO E2PROM_CS 11 Download Service Manual And Resetter Printer at http://printer1.blogspot.com Controller Diagram(7/10) U35-5 10 74F14 DI DO SK NC1 NC2 CS 8 VCC C46 0.1UF 5 GND 93C66G VCC C184 0.1UF VCC VCC LF10 FILTER_150PF 1 3 2 C355 R149 1K LED(1) 0.
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Schematic Diagrams Controller Diagram(8/10) VCC R173 10K D(0:7) U37 6 *DACK 5 DRQ 8 9 10 11 12 13 14 15 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7) VCC1 D25 MODE0 24 MODE1 R179 0 D+ R180 0 V3.3 1 2 3 4 7 16 nECS1 EIRQ0* A(13) DPO_RST* R182 0 R176 RESET* VBUS C303 33UF/16V 20 19 18 *CS *RD *WR_SK INTR A0-ALE-SI *RESET 27 C317 100PF 33 R163 20 R162 20 R160 1.
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Schematic Diagrams D(0:7) VCC U40 A(0:9) LF6 FILTER_150PF 1 3 2 R186 VIDEO* 0 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7) B7 EVIDEO* R185 HSYNC* 16 18 19 20 22 23 25 26 A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7) A(8) A(9) LSYNC* 0 C320 100PF 4 5 7 8 9 10 11 13 14 15 B8 B5 VIDEO* PSYNRQ* 28 SVIN* 96 FSINC* 92 BD* B6 C314 22PF 98 93 90 89 86 85 83 82 81 78 77 75 74 R300 0 VCC R296 1K HSYNC* U39-1 3 2 U39-2 U41-1 4 74F74 PR 3 _Q CLK 2 D Q CLR 4 C368 1000PF 74F14 74F14 PA0 PA1 PA2 PA3 PA4 P
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Schematic Diagrams D(0:7) VCC C705 0.1UF RA700 nECS1 C703 100PF VCC R700 1K EIRQ0* A(4) A(5) D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7) 1 3 5 7 2 4 6 8 RA100 RA701 1 3 5 7 2 4 6 8 RA100 RA702 1 3 5 7 2 4 6 8 RA100 C704 100PF 4 OE* B700 1 B701 1 2 2 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Download Service Manual And Resetter Printer at http://printer1.blogspot.com Schematic Diagrams 8-4.
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Schematic Diagrams 8-6. Motor-SUB Board Diagram +5V C2 47UF 50V C1 10UF 50V NOT USED C8 330PF 50V C6 330PF 50V 5 +5V 11 +24V Download Service Manual And Resetter Printer at http://printer1.blogspot.
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8-19 CN1 VCC 1 2 CONN2 Download Service Manual And Resetter Printer at http://printer1.blogspot.com LD18 SR3312-V LD17 SR3312-V LD16 SR3312-V LD15 SR3312-V LD14 SR3312-V LD13 SR3312-V LD12 SR3312-V LD11 SR3312-V LD10 SR3312-V LD9 SR3312-V LD8 SR3312-V LD7 SR3312-V LD6 SR3312-V LD5 SR3312-V LD4 SR3312-V LD3 SR3312-V LD2 SR3312-V LD1 SR3312-V Schematic Diagrams 8-7.
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Electrical Parts Lists 7. Electrical Parts Lists 7-1. Engine PBA 7-1-1. Engine PBA (ML-6050 : 110V) SEC. Code Location No.
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Electrical Parts Lists SEC. Code 7-2 Location No. Description Spec 2001-000005 R221, R231 R-CARBON 390OHM, 5%, 1/8W, AA, TP, - 2001-000010 R240 R-CARBON 68KOHM, 5%, 1/8W, AA, TP, - 2001-000012 R236 R-CARBON 680KOHM, 5%, 1/8W, AA, TP, - 2001-000015 R62 R-CARBON(S) 0.
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Electrical Parts Lists SEC. Code Location No. Description Spec 2001-000734 R251 R-CARBON 4.7KOHM, 5%, 1/8W, AA, TP, - 2001-000761 R218 R-CARBON 430OHM, 5%, 1/8W, AA, TP, - 2001-000780 R156 R-CARBON 470OHM, 5%, 1/8W, AA, TP, - 2001-000786 R54, R223, R224, R227 R-CARBON 47KOHM, 5%, 1/8W, AA, TP, - 2001-000812 R19, R26, R28, R35, R36 R-CARBON 5.6KOHM, 5%, 1/8W, AA, TP, - 2001-000812 R261, R405 R-CARBON 5.6KOHM, 5%, 1/8W, AA, TP, - 2001-000812 R38, R40, R51, R59 R-CARBON 5.
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Electrical Parts Lists SEC. Code 7-4 Location No. Description Spec 2004-001357 R515 R-METAL 93.1Kohm, 1%, 1/8W, AA, TP, 1.8x3.2 2004-002001 R245 R-METAL 12.1Kohm, 1%, 1/8W, AA, TP, 1.8x3.2 2004-004179 R258 R-METAL 174KOHM, 1%, 1/8W, AA, TP, 1.8X3.2MM 2005-000164 R114 R-WIRE WOUND, NON 0.1ohm, 5%, 2W, AA, BK, 4x12mm 2009-001041 R208, R209 R-METAL GLAZE 2Mohm, 1%, 1/4W, AA, TP, 3X9mm 2009-001042 R204, R207, R277 R-METAL GLAZE 4.
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Electrical Parts Lists SEC. Code Location No. Description Spec 2401-001700 C153, C154, C155 C-AL 470uF, 20%, 10V, -, -, 10x12.5, - 2401-002075 C33, C35 C-AL 4.7uF, 20%, 50V, GP, TP, 5x11, 5 2902-001011 BD1, BD101, BD102 FILTER-LINE -, -, - 2902-001011 BD103, BD151, BD152 FILTER-LINE -, -, - 3301-000344 FB1, FB2, FB3, FB4, FB5 CORE-FERRITE BEAD ZZ, 3.5x6.
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Electrical Parts Lists SEC. Code JC39-40511A Location No.
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Electrical Parts Lists SEC. Code Location No. Description Spec 2009-001082 R280 R-METAL GLAZE 30Mohm, 2%, 2W, -, BK, 30x8.5mm 2009-001083 R220 R-METAL GLAZE 200Mohm, 2%, 1/2W, CM, BK, 18x6mm 2009-001084 R211 R-METAL GLAZE 30Mohm, 2%, 0.
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Electrical Parts Lists SEC. Code Location No. Description Spec JC27-60101C L151 COIL FILTER- -, 6UH, -, - JC27-60502A L101 COIL FILTER-LINE110V ML5500, 7.0mH, 0.10ohm, 26T JC27-60503A L102 COIL FILTER-3MH ML5500, 3.0mH, 0.40ohm, 30T JC33-10501B - SOLENOID-6000 ML-6000, 24VDC, 72W, 57, 39X39X22, JC70-10909A HP1, HP2, HP3, HP4 IPR-CONNECTOR HV ML-80, AL, T0.
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Electrical Parts Lists 7-1-2. Engine PBA (ML-6050 : 220V) SEC. Code Location No.
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Electrical Parts Lists SEC. Code 7-10 Location No. Description Spec 2001-000012 R236 R-CARBON 680KOHM, 5%, 1/8W, AA, TP, - 2001-000015 R62 R-CARBON(S) 0.5OHM, 5%, 1/2W, AA, TP, - 2001-000016 R8 R-CARBON(S) 1OHM, 5%, 1/2W, AA, TP, - 2001-000019 R217, R230 R-CARBON(S) 10OHM, 5%, 1/2W, AA, TP, - 2001-000023 R109 R-CARBON 47OHM, 5%, 1/4W, AA, TP, - 2001-000027 R104 R-CARBON 100OHM, 5%, 1/4W, AA, TP, - 2001-000045 R274 R-CARBON 1.
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Electrical Parts Lists SEC. Code Location No. Description Spec 2001-000786 R54, R223, R224, R227 R-CARBON 47KOHM, 5%, 1/8W, AA, TP, - 2001-000812 R19, R26, R28, R35, R36 R-CARBON 5.6KOHM, 5%, 1/8W, AA, TP, - 2001-000812 R261, R405 R-CARBON 5.6KOHM, 5%, 1/8W, AA, TP, - 2001-000812 R38, R40, R51, R59 R-CARBON 5.6KOHM, 5%, 1/8W, AA, TP, - 2001-000812 R60, R61, R260 R-CARBON 5.6KOHM, 5%, 1/8W, AA, TP, - 2001-000816 R113 R-CARBON 5.
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Electrical Parts Lists SEC. Code 7-12 Location No. Description Spec 2005-000168 R114 R-WIRE WOUND, NON 0.22ohm, 5%, 2W, AA, BK, 4x12mm 2009-001041 R208, R209 R-METAL GLAZE 2Mohm, 1%, 1/4W, AA, TP, 3X9mm 2009-001042 R204, R207, R277 R-METAL GLAZE 4.
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Electrical Parts Lists SEC. Code Location No. Description Spec 2902-001011 BD103, BD151, BD152 FILTER-LINE -, -, - 3301-000344 FB1, FB2, FB3, FB4, FB5 CORE-FERRITE BEAD ZZ, 3.5x6.
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Electrical Parts Lists SEC. Code Location No.
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Electrical Parts Lists SEC. Code Location No. Description Spec 2009-001085 R201 R-METAL GLAZE 10Mohm, 3%, 1/2W, CM, BK, 18x4mm 2103-000156 VR201, VR202, VR204 VR-SEMI 10Kohm, 10%, 1/2W, TOP 2103-000270 VR203 VR-SEMI 20Kohm, 10%, 1/2W, TOP 2103-001079 VR205 VR-SEMI 100Kohm, 15%, 1/2W, TOP 2201-000023 C103, C104, C115 C-CERAMIC, DISC 2.
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Electrical Parts Lists SEC. Code 7-16 Location No. Description Spec JC33-10501B - SOLENOID-6000 ML-6000, 24VDC, 72W, 57, 39X39X22, JC70-10909A HP1, HP2, HP3, HP4 IPR-CONNECTOR HV ML-80, AL, T0.
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Electrical Parts Lists 7-2. Controller Board Parts Lists 7-2-1. Controller Board (Not for XEU) SEC. Code Location No.
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Electrical Parts Lists SEC. Code Location No. Description Spec 2007-000964 R113, R264 R-CHIP 5.
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Electrical Parts Lists SEC. Code Location No. Description Spec 2203-000938 C345, C346, C347 C-CERAMIC, CHIP 470pF, 5%, 50V, NPO, TP, 2012, - 2203-001002 C104, C105, C107, C113 C-CERAMIC, CHIP 47pF, 5%, 50V, NPO, TP, 2012, - 2203-001158 C48, C50 C-CERAMIC, CHIP 68pF, 5%, 50V, NPO, TP, 2012, - 2404-000128 C162 C-TA, CHIP 10uF, 20%, 16V, -, TP, 6032, - 2404-000308 C1, C2, C3, C191 C-TA, CHIP 33uF, 20%, 10V, -, TP, 7342, 4.
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Electrical Parts Lists 7-2-2. Controller Board (Only XEU) SEC. Code Location No.
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Electrical Parts Lists SEC. Code Location No. Description Spec 2007-000781 R128, R142, R144 R-CHIP 33OHM, 5%, 1/10W, DA, TP, 2012 2007-000931 R42 R-CHIP 470OHM, 5%, 1/10W, DA, TP, 2012 2007-000964 R109, R110, R111, R112, R-CHIP 5.
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Electrical Parts Lists SEC. Code Location No.
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Electrical Parts Lists 7-3. LED PANNEL Parts Lists SEC. Code Location No. JC92-00346A Description Spec BPA-PANEL 0601-000161 LED1 LED ROUND,GRN,5mm,563nm 0601-000255 LED4 LED ROUND,RED,5mm,700nm 0601-000304 LED2, LED3 LED ROUND,YEL,5mm,585nm 2001-000032 R1, R2, R3, R4 R-CARBON 180OHM,5%,1/4W,AA,TP,- 2202-000579 C1 C-CERAMIC,MLC-AXIAL 100nF,+80-20%,50V,Z5U,TP,2.5x4 3404-000116 SW1 SWITCH-TACT 12V,50mA,160gf,6X6X3.6mm,SPST 3711-001096 J1 CONNECTOR-HEADER BOX,7P,1R,2.
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6. Exploded Views and Parts Lists 6-1. Main Exploded View 6-2. Cover Exploded View 6-3. Frame Exploded View 6-4. Fuser Exploded View 6-5. Drive Assembly Exploded View 6-6. Pick-Up Exploded View 6-7. Cassette Exploded View 6-8. Second Cassette Exploded View (Option) 6-9. Second Cassette Frame Exploded View (Option) Samsung Electronics 6-1 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Exploded Views and Parts Lists 6-1. Main Exploded View 8 7 9 6 10 5 4 11 3 12 2 13 1 14 6-2 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Exploded Views and Parts Lists Main Parts Lists Location No. Description SEC. Code Q'ty Remark 1 MEA RACK-FEEDER CAS JC97-01077A 1 O 2 MEC-BRKT, BASE R JC75-10922A 1 O 3 MEA RACK-FEEDER.
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Exploded Views and Parts Lists 6-2. Cover Exploded View 0 13 11 9 12 10 14 15 12 6 7 8 16 1 5 4 7 19 4 20 18 17 3 21 22 2 23 1 25 24 6-4 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Exploded Views and Parts Lists Cover Parts Lists Location No. 0 Description ELA HOU-CVR_MAIN SEC.
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Exploded Views and Parts Lists 6-3.
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Exploded Views and Parts Lists Frame Parts Lists Location No. Description SEC.
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Exploded Views and Parts Lists Location No. 6-8 Description SEC.
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Exploded Views and Parts Lists Location No. Description SEC. Code Q'ty Remark 51 HOLDER-ACTUATOR JC72-41289A 1 O 52 PBA MAIN-CLN JC92-01084A 1 O 53 CBF-HARNESS JC39-40513A 1 X 54 ELA-HOU CLEANING PLT JC96-01229A 1 X 55 CAP-GND WIRE JC72-00011A 1 X 56 CBF-HARNESS MOTOR JC39-40575A 1 X Samsung Electronics 6-9 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Exploded Views and Parts Lists 6-4. Fuser Exploded View 26 5 28 0 26 1 29 27 2 31 23 25 3 2 4 2 5 7 6 8 23 22 24 21 2 9 2 20 2 10 11 17 2 16 19 18 12 13 15 14 6-10 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Exploded Views and Parts Lists Fuser Parts Lists Location No. 0 Description SEC.
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Exploded Views and Parts Lists 6-5. Motor Exploded View 0 2 13 3 4 2 1 5 8 6 9 12 6-12 11 10 7 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Exploded Views and Parts Lists Motor Parts Lists Location No. Description SEC.
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Exploded Views and Parts Lists 6-6. Pick-Up Exploded View 0 1 2 3 4 5 3 6 8 24 2 9 25 10 7 23 2 11 3 13 22 12 2 13 18 16 14 15 17 19 21 6-14 20 15 17 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Exploded Views and Parts Lists Pick-Up Parts Lists Location No. Description SEC.
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Exploded Views and Parts Lists 6-7. Cassette Exploded View 0 8 7 9 15 16 6 20 14 10 12 5 13 11 3 23 4 2 Qwik Lase r605 0 ML-6 1 050 17 18 19 20 21 22 6-16 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Exploded Views and Parts Lists Cassette Parts Lists Location No. Description SEC.
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Exploded Views and Parts Lists 6-8. Second Cassette Exploded View 0 20 21 12 6 19 11 17 18 10 9 13 14 25 15 8 16 Qwik Lase 7 4 3 5 r605 0 ML-6 050 22 23 6 24 1 2 6-18 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Exploded Views and Parts Lists Second Cassette Parts Lists Location No. Description SEC. Code Q'ty Remark 0 MEA RACK-CAST.SCF JC97-01196A 1 X 1 GUIDE CST JC72-40306A 1 X 2 PMO-GUIDE-2’ND CAST.
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Exploded Views and Parts Lists 45 3 23 3 22 40 4 5 49 38 33 6 10 6-20 8 11 12 3 14 3 13 15 7 16 1 9 2 17 18 19 9 9 3 21 20 21 24 25 15 50 1 3 26 23 4 22 5 3 28 3 2 1 27 3 3 29 34 39 37 35 48 36 47 3 46 3 1 44 41 1 42 3 43 1 44 32 31 30 3 0 6-9. Second Cassette Frame Exploded View Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Exploded Views and Parts Lists Second Cassette Frame Parts Lists Location No. Description SEC.
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Exploded Views and Parts Lists Location No. 6-22 Description SEC.
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5. Troubleshooting Error code 1-010 Fault Black vertical stripes Model ML-xxxx Description Black vertical stripes occur in the printing. Check 1. Developer cartridge 2. Transfer roller 3. Charge roller Cause 1. Defective develop roller or bad blade of toner cartridge. 2. Defective transfer roller or charge roller. Solution 1. Replace the toner cartridge, if defective. 2. Replace the roller defective.
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Troubleshooting Error code 1-020 Fault White vertical stripes Model ML-xxxx Description White vertical voids in the image. Check 1. LSU 2. Developer cartridge 3. Fuser Cause 1. Foreign matter stuck onto the window of internal lens of LSU mirror 2. Foreign matter or toner particles between the developer roller and blade 3. If the fuser is defective, voids occur periodically at the top of a black image. Solution 1. Clean the LSU window with a recommended cleaner, or replace the LSU window. 2.
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Troubleshooting Error code 1-030 Fault Black horizontal stripes Model ML-xxxx Description Dark or blurry horizontal stripes occur in the printing periodically. Check Developer cartridge Cause 1. Bad contacts of the voltage terminals to developer 2. The rollers may be stained with toner particles. * Abnormal image periodicity : 37.7 mm = Charge roller 31.3 mm = Supply roller 94.2 mm = OPC drum 46 mm = Develop roller non periodical = Blade Solution 1. Check all voltages, and adjust as necessary. 2.
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Troubleshooting Error code 1-040 Fault Black or white spots Model ML-xxxx Description Dark or blurry black or white spots occur periodically. Check 1. Developer cartridge 2. Transfer voltage 3. Transfer roller’s life Cause 1. If dark or blurry black spots occur periodically, the rollers in the Developer may be contaminated with foreign matter or paper particles. (Charge roller : 37 mm interval, OPC drum : 94 mm interval). 2.
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Troubleshooting Error code 1-050 Fault Light image (1) Model ML-xxxx Description The printed image is light, with no ghost. Check Developer cartridge Cause 1. The life of cartridge is ended. 2. Ambient temperature is below than 10 oC. 3. Agitator gear in the Developer is defective. 4. Bad contact of supply roller and abnormal supply voltage. Solution 1. Check the weight of the developer cartridge, and replace if necessary.
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Troubleshooting Error code 1-051 Fault Light image (2) Model ML-xxxx Description The printed image is light, with no ghost. Check Engine board Cause 1. Charge voltage (=MHV) on the engine board exceeds 1520V. (Perform DCU diagnostic mode 01 to measure the voltage). 2. No power to the supply roller. Solution Check the following parts and replace if defective : U201(KA324), Q211(C1008), T202(Transformer), resistors, and diodes in the output and feedback area.
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Troubleshooting Error code 1-052 Fault Light image (3) Model ML-xxxx Description The printed image is light, with no ghost. Check 1. Engine board 2. Main body Cause 1. Engine board bias (350-485V) and supply voltage (570-630V) may be low (Perform DCU diagnostic mode 04 to measure the voltage). 2. Direct strong light may be entered into the manual feed slot. Solution 1.
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Troubleshooting Error code 1-060 Fault Dark image (1) Model ML-xxxx Description The printed image is dark. Check Engine board Cause 1. No charge voltage in the engine board. (Perform DCU diagnostic code ‘01’ to measure the voltage). Solution 1-1. Check the following parts : U201(KA324), Q211(C1008), Q201(D526-Y), T202, U203 (SN7407N), resistors, diodes in the output and feedback area. 1-2. Clean the high voltage terminal on the engine and its PBA. 1-3. Refer to the following information.
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Troubleshooting Error code 1-061 Fault Dark image (2) Model ML-xxxx Description The printed image is dark. Check Engine board Cause 1. No supply or bias voltage at the engine board (Perform DCU diagnostic code ‘04’ to measure the voltage). Solution 1-1. Check the following parts : U201(KA324), Q204(D526-Y), T204, U203 (SN7407N), resistors, diodes in the output and feedback area. 1-2. Refer to the following information. U203(7407N)’s pin #1; pulse input, pin #2; pulse output.
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Troubleshooting Error code 1-062 Fault Dark image (3) Model ML-xxxx Description The printed image is dark. Check Engine board Cause 1. Voltage higher than normal. (normal supply voltage : 570-630V, normal bias voltage : 350-485V). Solution 1-1. Check the following parts : U201(KA324), Q204(D526-Y), T204, U203 (SN7407N) resistors, diodes in the output and feedback area. 1-2. Refer to the following information. U203(7407N)’s pin #9; pulse input, pin #8; pulse output. 1-3.
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Troubleshooting Error code 1-070 Fault Uneven density Model ML-xxxx Description Print density is uneven between left and right. Check 1. Transfer roller pressure 2. Developer cartridge Cause 1. The pressure force on the left and right springs of the transfer roller is not even (left : 450 gf, right : 600 gf), the springs are damaged, the transfer roller is improperly installed, or the transfer roller bushing or holder is damaged. 2.
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Troubleshooting Error code 1-080 Fault Background Model ML-xxxx Description Background appears in the printing. Check 1. Engine board 2. Developer cartridge 3. Transfer roller 4. Operating environment Cause 1-1. Low transfer voltage (10% below than normal) 1-2. High supply and / or bias voltage. 1-3. No transfer voltage. 2. Unauthorized recording paper has been used. 3. Abnormal ambient temperature or humidity. 4. Defective develop roller. Solution 1-1. Refer to Error Code 1-060. 1-2.
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Troubleshooting Error code 1-090 Fault Ghost (1) Model ML-xxxx Description Ghost occurs at 94 mm intervals. Check 1. Developer cartridge 2. Main body Cause 1. Contamination of high voltage terminals in the main body , engine board, and / or developer. 2. Transfer roller lifetime has expired. 3. No using recommended recording paper. 4. The Pre-Transfer Lamp (Refer to 18 on page 6-6.) Solution 1. Open top cover and disassemble the unit and clean contamination components. 2.
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Troubleshooting Error code 1-090-1 Fault Ghost (2) Model ML-xxxx Description Ghost occurs at 94 mm intervals. Check Operating environment Cause 1. Abnormal low temperature and humidity. In this case, ghost occurs on the entire page and the print density is too light. Solution 1. If the operating temperature and relative humidity are too low, try waiting about 1 hour after power on before using printer.
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Troubleshooting Error code 1-091 Fault Ghost (3) Model ML-xxxx Description When xerographic paper is used in ADF, ghost occurs at 94 mm intervals. Check Engine board Cause 1. No minus (-) transfer voltage output from the engine board. (Normal voltage : 1250 -1450V with 660 Mohm load) 2. The (+) transfer voltage may be abnormal when performing DCU #13 with 660 Mohm load on the transfer voltage output. (Normal voltage: 2200V (+30/-30V) DCU #14, 3250-3350V DCU #13).
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Troubleshooting Error code 1-093 Fault Ghost (4) Model ML-xxxx Description When printing on card stock or transparencies using manual feeder, ghost occurs at 94 mm intervals. Check 1. Selected paper type in the software application 2. Engine board Cause 1. When printing on card stock or transparencies, higher transfer voltage is required. Select ‘Thick Mode’ on paper type menu from the software application. 2. Defective transfer voltage terminal in the engine board. Solution 1.
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Troubleshooting Error code 1-094 Fault Ghost (5) Model ML-xxxx Description Dark ghost occurs in printing at 69 mm intervals Check Fuser Cause The heat roller and pressure roller in the fuser are contaminated with toner or paper particles. Solution Open the rear cover and check if the heat roller is stained. If stained, disassemble the fuser and clean the rollers with soft cloth dampened with alcohol. If ghost still occurs, replace the fuser.
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Troubleshooting Error code 1-095 Fault Ghost (6) Model ML-xxxx Description White ghost occurs in the black image printing at 46 mm intervals. Check 1. Developer cartridge Cause 1. The life of the developer may be expired. 2. Abnormal transfer voltage or bad contact of the transfer roller Solution 1. Measure the weight of the developer and replace if the weight is less than 960g +/-20g. 2. Check the supply voltage and adjust if necessary. Check for the contact.
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Troubleshooting Error code 1-100 Fault Partial blank image Model ML-xxxx Description Partially blank image appears either periodically or non-periodically. Check 1. Transfer roller 2. Developer cartridge Cause 1. The pressure force on the left and right transfer roller springs are not even, the springs are damaged, the transfer roller is improperly installed, or the transfer roller bushing or holder is damaged. 2.
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Troubleshooting Error code 1-110 Fault Stains on the face of page Model ML-xxxx Description Background too dark on the face of printed page Check 1. Developer cartridge 2. Main body Cause 1. Toner leakage due to improperly sealed developer. 2. Transfer roller length is out of spec. (218 mm) or the roller is defective. 3. The inside of the unit is contaminated with toner or paper particles. Solution 1. Clean the unit thoroughly. If problems still occurs, replace the developer. 2.
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Troubleshooting Error code 1-111 Fault Stains on back of page Model ML-xxxx Description The back of the page is stained at 49 mm intervals Check Transfer roller Cause 1. Transfer roller is contaminated. 2. Abnormal (+) (-) transfer voltage, or cleaning voltage. 3. Defective transfer roller Solution 1. Clean the transfer roller thoroughly. Replace if contaminated severely. 2. Adjust the voltages. 3. Replace if necessary.
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Troubleshooting Error code 1-120 Fault Blank page printout Model ML-xxxx Description Blank page is printed. Check 1. Bad ground contacts in OPC and/ or developer. 2. Seal tape on the cartridge Cause 1. GND OPC is not well grounded. 2. Seal tape is not removed. 3. Low toner Solution 1. Repair or replace the GND terminal. 2. Remove the seal tape. 3. Shake the toner cartridge and print. Or replace with new one.
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Troubleshooting Error code 1-121 Fault Partial black image Model ML-xxxx Description One or several blank pages are printed. When the printer turns on, several blank pages print. Check Control board Cause Defective control board Solution 1. Perform the engine self test using DCU. If blank page prints, the control board is defective. If the printer works normally, refer to next solution (2). If the control board is defective, check the connection on the control board, QP1700 pin 125, and 202. 2.
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Troubleshooting Error code 1-130 Fault Data error Model ML-xxxx Description Incomplete or missing characters. Check Control board Cause 1. Bad connections of port 2. Defective oscillators in the video controller. 3. Defective CPU in the video controller. Solution 1. Check that the port and related parts are properly connected or soldered. 2. Check the oscillators (47.7789 MHz, 50MHz) on the video controller. 3. Replace the CPU on the video controller.
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Troubleshooting Error code 1-140 Fault Poor fusing grade (1) Model ML-xxxx Description When printing on xerographic paper from cassette, the printed image is diffused. Check Engine board Cause Defective the fuser (Heat lamp) control circuit in the engine board. Solution Refer to solution 2-1 under Error Code 3-011. Remark Others Samsung Electronics 5-25 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Troubleshooting Error code 1-141 Fault Poor fusing grade (2) Model ML-xxxx Description When printing on card stock or transparencies using manual feeder, the printed image is diffused. Check 1. Improper paper type menu setup 2. Engine board Cause 1. When printing on card stock or transparencies, higher transfer voltage is required. 2. Defective transfer voltage circuit in the engine board. Solution 1-1.
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Troubleshooting Error code 2-010 Fault Wrong print position Model ML-xxxx Description Printing begins at wrong position on the paper. Check Feed sensor actuator, LSU, Pick-up ass’y, Bracket-dust, Solenoid, Video Controller. Cause 1. Wrong sence time caused by defective feed sensor actuator. 2. Skew: Bad LSU-assembling Uneven pressure force of the pick-up ass’y Defective mechanical parts 3.
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Troubleshooting Error code 2-020 Fault Jam 0 Model ML-xxxx Description 1. Paper is not exited from the cassette. 2. Paper is stopped just after cassette, before feed sensor, or on the feed sensor. Check Engine board Cause 1. Open the printer cover, and close it. Then check : 1-1. If the paper does not feed into the printer, the feed clutch driving circuit in the engine board may be defective. 1-2.
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Troubleshooting Error code 2-030 Fault Jam 1 Model ML-xxxx Description Recording paper is jammed in the output area (inside the fuser), or multiple sheets of the paper are fed at once. Check Engine board Cause 1. Open the printer cover, and close it. Then check : - If the paper does not feed into the printer, the feed clutch driving circuit in the engine board may be defective. - If the paper feeds into the printer and ‘Jam 1’ occurs, the feed sensor OP1 on the engine board may be defective.
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Troubleshooting Error code 2-040 Fault Jam 2 Model ML-xxxx Description Paper is completely fed out of the printer, but Jam 2 occurs. Or, the paper is stuck in the fuser roller. Check 1. Engine board 2. Fuser Cause 1. Check if paper is jammed in the pressure roller. 2. Open the printer cover, and close it : If Jam 2 occurs after the paper is completely fed out of the printer, the exit sensor contact may be bad or the exit sensor actuator may be deformed. Solution 1-1.
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Troubleshooting Error code 2-050 Fault Multi-feeding Model ML-xxxx Description Multiple sheets of paper are fed at once. Check Engine board Cause 1. Solenoid malfunction. 2. Feed clutch armature does not engage the pick-up housing in the pick-up ass’y. Solution 1. If the solenoid does not work properly: 1-1. Measure the resistance of the feed clutch coil. If below 40 ohm (normal: 55-60 ohm), replace. 1-2. Check Q4 C/E short, and replace as necessary.
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Troubleshooting Error code 3-010 Fault Fuser Error Model ML-xxxx Description All the lamps on the operator panel blink and the system stops. Check 1. Fuser 2. Engine board Cause 1-1. Thermostat, AC wire, or heat lamp may be open. 1-2. Thermistor may be open. (DCU error code 60, 62, 68.) 2-1. Abnormal heat lamp on/off 2-2. Malfunction of the overheat circuit Solution 1-1. Check thermostat, AC wire, and heat lamp. If the thermostat is open, check also R37, R47, or Q8. 1-2.
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Troubleshooting Error code 3-011 Fault Malfunction of the gear motor in the fuser Model ML-xxxx Description When printing, motor breaks away from its place due to the defective fuser gear. Check 1. Fuser 2. Engine board Cause 1. Fuser control temperature is set too high. 2. PC151 or Q3 is defective. 3. Overheat circuit is not operating properly. Solution 1-1. Check if the thermostat is open, and replace. 1-2. Check if the thermistor sensor is in place, and replace if required. 2-1. R57 and R58 = 3.
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Troubleshooting Error code 3-020 Fault Scanner Error Model ML-xxxx Description The feeding paper is stopped in the front of transfer roller and all lamps on the operator panel blink. Check 1. LSU 2. Engine board Cause 1. Defective LSU 2. Defective Q5, or CPU 3. Abnormal resistance value of R8, R62 Solution 1. Perform DCU diagnostic code 05. If the DCU error code 95 is displayed, replace LSU. If you cannot solve the problem after you replace LSU, follow the steps below.
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Troubleshooting Error code 3-030 Fault Paper Empty Model ML-xxxx Description • The PAPER lamp on the operator panel is on even when paper is loaded in the cassette. • The PAPER lamp on the operator panel does not come on when the paper cassette is empty. Check 1. Actuator-Empty (Refer to 52 on page 6-6.) 2. Engine board Cause 1. Empty actuator may be defective. 2. Photo sensor OP2 on the engine board may be defective. Solution 1. Replace the defective actuator. 2-1.
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Troubleshooting Error code 3-040/3-041 Fault Cover Open Model ML-xxxx Description • The ERROR lamp is on even when the printer cover is closed. • The ERROR lamp does not come on even when the printer cover is open. Check 1. Hook lever in the top cover (Refer to 2 on page 6-4.) 2. Engine board 3. Actuator-cover open (Refer to 48 49 on page 6-6.) Cause 1. The hook lever may be defective. 2. Malfunction of the circuit containing the micro switch SW151 and its related parts on the engine board. 3.
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Troubleshooting Error code 3-050 Fault All Lamps Blinking Model ML-xxxx Description When printer power is on, all lamps on the operator panel blink. Check 1. Harness between the engine and control boards 2. Engine board Cause Defective interface between the engine board and control boards (DCU error code ‘78’) Solution 1. Check the harness between the engine and control boards. 2-1. Check if the engine board works properly when the printer resets. U5 pin 1 should be below 0.
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Troubleshooting Error code 3-060 Fault Memory Overflow Model ML-xxxx Description When printing, error message is printed out. Check Control board Cause Insufficient printer memory. Solution Install optional SIMM memory in the control board. Remark Others 5-38 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Troubleshooting Error code 3-080 Fault Defective motor operation Model ML-xxxx Description Main motor is not driving when printing, and paper does not feed into the printer, resulting ‘Jam 0’. Check 1. Engine board 2. Sub motor board (Refer to 12 on page 6-6.) Cause 1. Motor harness or CN104 may be defective. 2. U1 defective in the sub motor board. Solution 1. Check the motor harness. replace it, if defective. 2-1. Perform DCU diagnostic code 00 and check the motor operation. 2-2.
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Troubleshooting Error code 3-090 Fault Ear-splitting noise or allophone Model ML-xxxx Description While operating, ear-splitting noise occurs. Check LSU motor, Main motor bracket, Fan, Developer, Fuser gear Cause 1. Defective LSU motor and main motor bracket, or defective harness 2. Foreign materials in the fuser gear or developer Solution 1-1. Replace the LSU, if defective. 1-2. Check the main motor bracket or its wiring harness. 1-3. Check pick-up ass’y rolls. 2.
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Troubleshooting Error code 3-100 Fault No power Model ML-xxxx Description When system power is turned on, all lamps on the operator panel do not come on. Check Engine board Cause 1. Defective harness between engine and control boards. 2. Defective harness between the control board and panel. 3. Defective fuse F151 4. Defective fuse F101 5. BD101 short. Check for the resistance value of Q102. 6. Defective U101 Solution 1.
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Troubleshooting Error code 3-110 Fault Vertical line getting curved Model ML-xxxx Description When printing, vertical line gets curved. Check LSU Engine board Cause 1. For LSU, +24V supply is unstable in the engine board. 2. Difference according to LSU vendors Solution • Check the capacitor between CN 3 pin 5 and +24V is 100nF. • Check the resistor R63 (12.1Kohm). • Replace LSU. • Replace the main board.
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Troubleshooting Fault All LEDs On Model ML-xxxx Description When turning on, all LEDs are continuously on. Check Fuser, LSU, Engine board Cause 1. Fuser error 2. LSU error 3. Bad connection between engine board and control board. Solution 1. Replace the fuser. 2. Replace the LSU. 3. Check the wiring between the engine board and the control board. 4. Replace engine board. Remark Others Samsung Electronics 5-43 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Troubleshooting Fault Jitter Model ML-xxxx Description When printing, image is irregular. Check LSU, Motor bracket Cause 1. LSU hexahedron period 2. Defective motor bracket gears Solution 1. Replace the LSU. 2. Replace the motor bracket ass’y. Remark Others 5-44 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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4. Disassembly and Reassembly 4-1. General Precautions on Disassembly When you disassemble and reassemble components, you must use extreme caution. The close proximity of cables to moving parts makes proper routing a must. If components are removed, any cables disturbed by the procedure must be restored as close as possible to their original positions. Before removing any component from the machine, note the cable routing that will be affected.
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Disassembly and Reassembly 4-2. Transfer Roller 1. Press the cover open switch and raise the printer cover. 3. Pull the roller slightly to the right to release the left end of the roller, then take it out. 2. Use a phillips screwdriver to release the right end of the roller. 4-2 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Disassembly and Reassembly 4-3. Controller Board 1. Remove the cover located at the right side of the printer. 3. Unplug two connectors from the board. 2. Remove one screw. Slide the shield cover in the direction of OPEN arrow marked on the cover, then remove the cover. 4. Remove three screws securing the board and pull the board out of the printer. Samsung Electronics 4-3 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Disassembly and Reassembly 4-4. Panel Board 1. Press the cover open switch and raise the printer cover. 4. Remove three screws from the board, and remove the board. 2. Remove the panel cap. 5. Remove the Window LED and button panel LED. 3. Unplug one connector from the panel board. 4-4 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Disassembly and Reassembly 4-5. Pickup Assembly 1. Turn the printer over. Remove three screws from the left base bracket, and take the bracket out. 3. Remove two screws securing the pickup assembly and take the assembly out. 2. Remove one ground screw. Push the solenoid if you have difficulty to remove the pickup assembly. 4. Check the pickup rubber wear. If the rubber is heavily worn, replace it with a new one. Squeeze this tab to remove the rubber.
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Disassembly and Reassembly 4-6. Main Cover 1. Before you remove the cover, you should remove: 4. Remove the panel cap inside the operator panel. -Controller Board (see page 4-3) 2. Remove two screws at the back of the printer. 5. Unplug one connector from the panel board. 3. Open the printer cover, and remove two screws. 4-6 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Disassembly and Reassembly 6. Unlatch the front ends of the cover. 7. Slide the main cover upward, out of printer. Note that the power switch is properly released from the cover. 4-7. LSU 1. Before you remove the LSU, you should remove: 3. Remove three screws, and remove the LSU. Then unplug two connectors from the LSU. -Controller Board (see page 4-3) -Main Cover (see page 4-6) 2. Remove two screws securing the fuser cover, and remove the fuser cover.
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Disassembly and Reassembly 4-8. Exit Assembly 1. Before you remove the exit assembly, you should remove: 4. If you want to remove the roller shaft, unlatch both ends of the shaft and take it out. -Controller Board (see page 4-3) -Main Cover (see page 4-6) -Fuser Cover (see page 4-10) 2. Remove three screws, and remove the bracket. 5. If you want to remove the exit rollers, sqeeze the bottom of roller and take it out. 3. Remove two screws, unlatch the exit tray and take it out.
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Disassembly and Reassembly 4-9. Drive Assembly and Fan 1. Before you remove the drive assembly or fan, you should remove: -Controller Board (see page 4-3) -Main Cover (see page 4-6) 4. Remove seven screws securing the drive assembly from the gear bracket, and remove the drive assembly and motor drive board. Unplug one connector from the board. 2. Unplug two connectors. 5. If you want to remove the motor from the drive assembly, remove three gold screws securing the motor assembly to the gear bracket.
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Disassembly and Reassembly 4-10. Fuser 1. Before you remove the fuser, you should remove: 4. Remove the exit actuator. Unplug two connectors. -Controller Board (see page 4-3) -Main Cover (see page 4-6) 2. Remove three screws, and remove the bracket. Exit Actuator 5. Remove four screws, and remove the fuser assembly. 3. Remove two screws from the SMPS bracket. 4-10 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Disassembly and Reassembly To remove the thermostat from the fuser assembly : Remove two screws, and take the thermostat out. To remove the halogen lamp from the fuser assembly : Remove one screw. Thermostat Note: When you reassemble the halogen lamp, make sure that it is inserted into the slot properly. To remove the thermistor from the fuser assembly : 1. Release the wire from the three holders. 2. Remove one screw, then take the thermistor out.
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Disassembly and Reassembly 4-11. Engine Board and Miscellaneous 1. Before you remove the engine board, you should remove: 5. Remove three screws securing the ICU ground, and remove the ICU ground. -Controller Board (see page 4-3) -Main Cover (see page 4-6) 2. Remove the SMPS bracket as described in ‘4-10 Fuser’ and unplug four connectors. 3. Remove one screw from the engine board. 6. Remove one ground screw. 4. Turn the printer over.
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Disassembly and Reassembly 7. Remove six screws securing the PCU shield. 9. Unplug all connectors from the PCU shield, and remove the shield. 8. While you push the stopper to release the PCU shield, take the PCU shield out of the printer. To replace HV terminals : Remove the terminals. Stopper HV terminals Note: When you replace with new ones, be careful that they are inserted in place. Samsung Electronics 4-13 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Disassembly and Reassembly To replace the SCF connector : Remove two screws and take it out. To replace the pickup sensor : Take the sensor out while you push the both ends of the sensor. To replace the paper empty sensor : Take the sensor out while you push the both ends of the sensor inward. To replace the cover open sensor : Remove the spring and take it out. Paper empty sennsor 4-14 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Disassembly and Reassembly To replace the actuator : 1. Turn the mechanism back and push down the points as shown to unlatch the actuator. To remove the transfer guide : Remove four screws and take the guide out. M3 x 8 2. Turn the unit over, and remove the actuator. To replace the PTL module : Release the three tabs latching the sensor using a phillips screwdriver, then push the sensor down. Samsung Electronics 4-15 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Disassembly and Reassembly To replace the transfer roller bushings (left and right) : Release each tab latching the left and right holder, then push the holder down. To replace the thermistor assembly : Remove one screw, and remove the thermistor assembly. Note: When you reassemble the thermistor assembly, make sure that it puts in place. 4-16 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Disassembly and Reassembly 4-12. ROM 1. Press the cover open switch and raise the printer cover. 3. Replace ROM using the specified jig. Note: When you install a new ROM, be careful for the direction. 2. Remove the ROM cover. Samsung Electronics 4-17 Download Service Manual And Resetter Printer at http://printer1.blogspot.
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Disassembly and Reassembly Memo 4-18 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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2. Specifications Note: It is subject to change without notice. Item Specification & Description Engine MLE-6000 Print Speed 12PPM (A4 Size, 5% Character Pattern) Resolution True 600 x 600 dpi Source of Light Laser Diode (LSU:Laser Scanner Unit) Print Method Non-impact Electrophotography Feed Method Cassette & Manual, Option Feeder Paper Handling (input) *Size (1) Standard : A4, Letter, Legal, B5, Executive, Folio (2) Envelope : manual feed only Paper Type Paper size(mm2) Monarch 98.
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Specifications Specification & Description Item Acoustic Noise Stand by : Less than 36dB, Operating : Less than 49dB Toner Supply Print Cartridge Expected Life Span 150,000 sheets Operating Environment Temperature : 10~30°C, Humidity : 20~80%RH Storage Environment Temperature : 0~35°C, Humidity : 10~90%RH Weigh Net : Max 11Kg, Gross : 12Kg External Dimension 360 (W) x 368 (D) x 220 (H)mm Print Cartridge Life Span : 5,000 pages, 5% Pattern Developing : Non-magnetic Contact Developing Chargin
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3. Reference Information 3-1. Abbreviations and Acronyms Tables 3-1-1 and 3-1-2 list abbreviations and acronyms which may be found in this service manual.
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Reference Information Abbr Definition Abbr Definition BIOS Basic Input/Output System NC No Connection BPS Bits Per Second PCB Printed Circuit Board CMOS Complementary Metal Oxide PCU Printed Control Unit Semiconductor PLCC Plastic Leaded Chip Carrier CPU Central Processing Unit PPM Page Per Minute DCU Diagnostic Control Unit PQFP Plastic Quad Flat Package DMA Direct Memory Access or PWM Pulse Width Modulation Dynamic Memory Access QFP Quad Flat Package Direct Memory Access
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Reference Information 3-2-2. Tools for Chip Replacement INSTALLING The tools for chip replacement are as follows: 1. Clean the area where the new part is to be mounted. 2. Apply a water soluble flux. 3. Set part correctly into position and prevent is from shifting. 4. Bring the soldering iron tip close to the part contact without actually touching it. Melt thin (0.3mm) solder between the tip and part so that it flows into the part contact. 5. Check work quality with a magnifying lens.
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Reference Information INSTALLING 3-2-6. Chip ICs 1. Clean the area where the new part is to be mounted. 2. Apply a water soluble flux. 3. Set part correctly into position and prevent it from shifting. 4. Use a sharp soldering iron tip. Bring the tip close to the part contact without actually touching it. Melt thin (0.3mm) solder between the tip and part so that it flows into the part contact. 5. Check work quality with a magnifying lens. TYPES The types of chip ICs are as follows: 1.
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Reference Information 3-3. Recommended Test Equipment Samsung recommends the following equipment when servicing the Laser Printer.
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Reference Information 3-4. DCU Control 3-4-1. DCU Setup 1) Connect DCU to Controller Board Connector J6 (4 pins) or Engine Board CN2 (4pins). 2) To apply power, simultaneously press and hold down [DOWN], [SHIFT], and [STOP] keys. ‘78’ is displayed. 3) After 2-3 seconds, release the keys. ‘00’ is displayed. 4) Press [UP] or [SHIFT]+[DOWN] keys until the desired code number is displayed in the DCU display. 5) Press [ENTER] to begin operating.
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Reference Information 3-4-3. DCU Error Status Code DCU error code will indicate malfunction area of the machine. Display Diagnostic Code Description 60 OPEN FUSER ERROR 62 LOW TEMPERATURE ERROR 68 OVER HEATING ERROR 64 COVER OPEN ERROR 70 NO PAPER 71 PAPER JAM 0 72 PAPER JAM 1 73 PAPER JAM 2 95 LSU NOT READY 3-4-4. Error Solution Display Solution 60, 62, 68 1. Measure the resistance of the AC connector on the Fuser. Normal resistance is 2-4 ohmsfor 110V, 6-8 ohms for 220V. 2.
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Reference Information Memo 3-8 Samsung Electronics Download Service Manual And Resetter Printer at http://printer1.blogspot.
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1. Precautions 1-1. Safety Precautions Read each caution carefully: 1. Do not use this printer near water or when exposed to inclement weather. 2. Do not place this printer on an unstable cart, stand or table; the product may fall, causing serious damage to the product. 3. Slots and openings in the cabinet are provided for ventilation. To ensure reliable operation and to protect the printer from everheating, do not block or cover any of these openings.
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Precautions 1-2. Servicing Precautions Note: Requirements for AC power are described on the label affixed to the rear of the printer. Check the AC voltage rating requirement before use. 1. Before disassembly, pull the power plug from the AC power connector. 2. To avoid spilling toner inside the machine, do not turn the printer over or on its side before removing the developer cartridge. 3. Faulty installation of DRAMs may cause permanent damage to the Laser Printer. 4.
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ELECTRONICS ©Samsung Electronics Co., Ltd. Mar. 1999 Printed in Korea P/N. JC68-00072A Rev.1.00 Download Service Manual And Resetter Printer at http://printer1.blogspot.