Samsung ML-1750 Spécifications

SERVICELASER PRINTERML-1700 SeriesML-1710ML-1750ManualLASER PRINTER CONTENTS1. Precautions2. Reference Information3. Specifications4. Summary of produ

2-3Samsung ElectronicsREFERENCE INFORMATIONService Manual2.3 The Sample Pattern for the TestThe sample pattern shown in below is the standard pattern

8-12EXPLODED VIEW & PA RTS LISTSamsung ElectronicsService Manual

999-1Samsung ElectronicsB LOCK DIAG R A MService Manual9. Block Diagram9.1 PCL ModelPOWER CORDIN-LETF. GTHERMISTORTo ControllerMAIN MOTORC-SOLENOIDC-S

9-2B LOCK DIAGRAMSamsung ElectronicsService Manual9.2 SPL ModelMHVPWMTHVPWMF.GEXIT-SENSORFEED-SENSORP/EMPTY-SENSORMP-SENSORIN-LET-+GNDTHV-RDBIASPWMTHV

110010-1Samsung ElectronicsCONNECTION DIAG R A MService Manual10. Connection Diagram10.1 PCL ModelHOSTCOMPUTERIEEE1284COMOPATIABLECABLECN5PCL MAIN BOA

10-2CONNECTION DIAGRAMSamsung ElectronicsService Manual10.2 SPL ModelTHE RMTHE RM21212THERMISTORMOTORDCUHOSTCOMPUTERAA/12341234BB/CN2CN7 CN5CN34P INCO

11-1Samsung ElectronicsSCHEMATIC DIAGRAMSService Manual1111. Schematic Diagrams11.1 PCL Main Circuit Diagram (1/7)

11-2SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualPCL Main Circuit Diagram (2/7)

11-3Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualPCL Main Circuit Diagram (3/7)

11-4SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualPCL Main Circuit Diagram (4/7)

11-5Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualPCL Main Circuit Diagram (5/7)

2-4REFERENCE INFORMATIONSamsung ElectronicsService Manual2.3.2 A4 2% Pattern

11-6SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualPCL Main Circuit Diagram (6/7)

11-7Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualPCL Main Circuit Diagram (7/7)

11-8SCHEMATIC DIAGRAMSSamsung ElectronicsService Manual11.2 SPL Main Circuit Diagram (1/5)

11-9Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualSPL Main Circuit Diagram (2/5)

11-10SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualSPL Main Circuit Diagram (3/5)

11-11Samsung ElectronicsSCHEMATIC DIAGRAMSService ManualSPL Main Circuit Diagram (4/5)

11-12SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualSPL Main Circuit Diagram (5/5)

11-13Samsung ElectronicsSCHEMATIC DIAGRAMSService Manual11.3 HVPS Circuit Diagram (1/2)R305MGR1/2W 50M5VQ201A708-Y4R20447KD202D1NL20UTNR2015N221KTHV-P

11-14SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualHVPS Circuit Diagram (2/2)D503D1NL20U5VR4131/2W 100KC407103C505104D4021N4148OPC1C402102R50510K

11-15Samsung ElectronicsSCHEMATIC DIAGRAMSService Manual11.4 SMPS Circuit Diagram : 110V (1/2)U2PWM CONTROLSTR-G6353DrainSource GNDVin54321+3.3V 1.0AG

2-5Samsung ElectronicsREFERENCE INFORMATIONService Manual2.3.3 A4 IDC Pattern

11-16SCHEMATIC DIAGRAMSSamsung ElectronicsService ManualSMPS Circuit Diagram : 110V (2/2)24VS5268-03ACON3123413423.3V123453015-0510CON4DGND123413423.3

2-6REFERENCE INFORMATIONSamsung ElectronicsService Manual

333-1Samsung ElectronicsSpecificationsService Manual3. SpecificationsProduct specifications are subject to change without notice.See below for product

3-2SpecificationsSamsung ElectronicsService Manual3.3 Electrical Specification3.2 Controller SpecificationITEMDESCRIPTIONML-1710 ML-1750Processor(

3-3Samsung ElectronicsSpecificationsService Manual• Input capacityCassette: 250 sheetsManual : 1 sheet• Output capacityFace Down : 50 sheets(20lb)Face

3-4SpecificationsSamsung ElectronicsService Manual

444-1Samsung ElectronicsSUMMARY OF PRODUCTService Manual4. Summary of ProductThis chapter describes the functions and operating principal of the main

4-2SUMMARY OF PRODUCTSamsung ElectronicsService Manual4.1.2 Rear ViewRear output tray(Face up) Power receptacleParallel port(ML-1750 Only)USB port4.1.

© Samsung Electronics Co.,Ltd. February 2003Printed in Korea.VERSION NO. : 1.00 CODE : JC-0093AThis service manual is also provided on

LED Description4-3Samsung ElectronicsSUMMARY OF PRODUCTService Manual4.1.3 Control Panel1) On Line/Error and Toner Save LEDsIf the On Line/Error light

4-4SUMMARY OF PRODUCTSamsung ElectronicsService Manual2) Cancel buttonPrinting demo page In Ready mode, press and hold this button for about 2 seconds

4-5Samsung ElectronicsSUMMARY OF PRODUCTService Manual4.2 System LayoutPTLPICK/RPRCRDRSRTR FROPCL S UFuserToner Cartridge11223634CassetteManual Feeder

4-6SUMMARY OF PRODUCTSamsung ElectronicsService Manual4.2.1 Feeding PartThere are the universal cassette, which loads papers, and the manual feeder, w

4-7Samsung ElectronicsSUMMARY OF PRODUCTService Manual4.2.4.5 Safety Relevant Facts• Protecting device when overheating- 1st protecting device: H/W cu

4-8SUMMARY OF PRODUCTSamsung ElectronicsService Manual4.2.6 Toner CartridgeBy using the electronic photo process, it creates a visual image. In the t

4-9Samsung ElectronicsSUMMARY OF PRODUCTService Manual4.3 Main PBA(SPL Model)The Engine Board and the Controller Board are in one united board, and it

4-10SUMMARY OF PRODUCTSamsung ElectronicsService Manual4.3.1 ASIC (Jupiter IV)The Jupiter IV (16Bit RISC Processor), which is the executive controller

4-11Samsung ElectronicsSUMMARY OF PRODUCTService Manual3) Paper Feeding, Toner Cartridge SensingWhen paper passes the actuator (feed sensor part), it

4-12SUMMARY OF PRODUCTSamsung ElectronicsService Manual4.4 Main PBA (PCL Model) CPU(SPGPm)SCHMITT INVERTIC-VOLTAGE COMPBUFFERSDRAMFONT ROMREGULATORCLO

2003. 02

4-13Samsung ElectronicsSUMMARY OF PRODUCTService ManualU6U8 CN2 U27 CN3 CN4U7OSC2U3 U20 U11U10 U24 U13 CN13CN8 OSC4 U26U17 U18 CN10 CN9 CN11CN12CN6U13

4-14SUMMARY OF PRODUCTSamsung ElectronicsService Manual4.4.1 Asic(SPGPm)1) ARM946ES - 32-bit RISC embedded processor core- 16KB instruction cache and

4-15Samsung ElectronicsSUMMARY OF PRODUCTService Manual4.4.4 SPGPm Internal Block Diagram AHB BUS SFR BUS INTERFACE SYSTEM BUS INTERFACE PAR

4-16SUMMARY OF PRODUCTSamsung ElectronicsService Manual4.5 SMPS & HVPSThe SMPS supplies the DC power to the system.It takes 110V/220V and outputs

4-17Samsung ElectronicsSUMMARY OF PRODUCTService Manual4.5.1 HVPS(High Voltage Power Supply)1) Transfer High Voltage (THV+) - Function: It is a voltag

4-18SUMMARY OF PRODUCTSamsung ElectronicsTraining Manual4.5.2 SMPS(Switching Mode Power Supply)It is the power source for the whole system. It is an i

4-19Samsung ElectronicsSUMMARY OF PRODUCTService Manual6) Feature - Insulating resistance : over 50MΩ (at DC500V)- Insulating revisiting pressure : Mu

4-20SUMMARY OF PRODUCTSamsung ElectronicsService Manual4.6 Engine F/W4.6.1 FeedingIf feeding from a cassette, the drive of the pickup roller is contro

4-21Samsung ElectronicsSUMMARY OF PRODUCTService Manual4.6.4 FusingThe temperature change of the heat roller’s surface is changed to the resistance va

4-22SUMMARY OF PRODUCTSamsung ElectronicsService Manual4.6.4.3 What is the Q-PID Method?The Q-PID is developed by Samsung, and it saves the preheating

111-1Samsung ElectronicsPrecautionsService Manual1. PrecautionsThe cautions in the below are items needed to keep in mind when maintaining and servici

555-1Samsung ElectronicsDisassembly and ReassemblyService Manual5. Disassembly and Reassembly5.1 General Precautions on DisassemblyWhen you disassembl

5-2Disassembly and ReassemblySamsung ElectronicsService Manual1. Pull the Cassette out of the printer.2. Remove the Front Cover in the direction ofarr

5-3Samsung ElectronicsDisassembly and ReassemblyService Manual1. Before you remove the Fuser, you shouldremove:- Top Cover(see page 5-2)2. Unplug two

5-4Disassembly and ReassemblySamsung ElectronicsService Manual5.3.2 Fuser(Q-PID Type)1. Before you remove the Fuser, you shouldremove:- Top Cover(see

5-5Samsung ElectronicsDisassembly and ReassemblyService Manual6. Separate Heat Roller Ass'y after remove sixscrews and after removing 6 screws as

5-6Disassembly and ReassemblySamsung ElectronicsService Manual1. Before you remove the Fuser, you shouldremove:- Top Cover(see page 5-2)2.Remove the E

5-7Samsung ElectronicsDisassembly and ReassemblyService Manual1. Before you remove the Fuser, you shouldremove:- Top Cover(see page 5-2)2. Unplug the

5-8Disassembly and ReassemblySamsung ElectronicsService Manual1. Before you remove the Fuser, you shouldremove:- Top Cover(see page 5-2)- Fuser Connec

5-9Samsung ElectronicsDisassembly and ReassemblyService Manual5.10 SMPS1. Before you remove the Fuser, you shouldremove:- Top Cover(see page 5-2)- Eng

5-10Disassembly and ReassemblySamsung ElectronicsService Manual5.11 Transfer Roller1. Before you remove the Fuser, you shouldremove:- Top Cover(see pa

1-2PrecautionsSamsung ElectronicsService Manual1.2 Caution for safety1.2.1 Precaution related noxious materialThe toner in a printer cartridge contain

5-11Samsung ElectronicsDisassembly and ReassemblyService Manual5.12 Feed Roller1. Before you remove the Fuser, you shouldremove:- Top Cover(see page 5

5-12Disassembly and ReassemblySamsung ElectronicsService Manual1. Before you remove the Fuser, you shouldremove:- Top Cover(see page 5-2)- Drive Ass’y

666-1Samsung ElectronicsALIGNMENT & ADJUSTMENTSService Manual6. Alignment and AdjustmentsThis chapter describes the main functions for service, su

6-2ALIGNMENT & ADJUSTMENTSSamsung ElectronicsServiceManual6.1.2 CodeConnect DCU to the printer and turn the power on. It show 7 Segment FND on the

6-3Samsung ElectronicsALIGNMENT & ADJUSTMENTSService Manual6.1.3 Self Diagnostic ModeIf Error code occurs due to malfunction of the printer, perfo

6-4ALIGNMENT & ADJUSTMENTSSamsung ElectronicsServiceManualCode Description07 Paper Empty Sensor Test : If activate the Actuator of the PEMPTY Sens

6-5Samsung ElectronicsALIGNMENT & ADJUSTMENTSService Manual6.1.4 Self Test ButtonIf the Self-Test button pressed, vertical lines are printed.Turn

6-6ALIGNMENT & ADJUSTMENTSSamsung ElectronicsServiceManual6.2 Paper PathPTLPICK/RPRCRDRSRTR FROPCL S UFuserToner Cartridge11223344Paper Input (Cas

6-7Samsung ElectronicsALIGNMENT & ADJUSTMENTSService Manual6.3 Clearing Paper JamsOccasionally, paper can be jammed during a print job. Some of ca

6-8ALIGNMENT & ADJUSTMENTSSamsung ElectronicsServiceManual6.3.2 In the Paper Feed Area1) Open the front cover and remove the toner cartridge 2) Ge

1-3Samsung ElectronicsPrecautionsService Manual1.2.3 Precaution related handling the machine.If you ignore this information, you could get harm and ma

6-9Samsung ElectronicsALIGNMENT & ADJUSTMENTSService Manual6.3.4 Tips for Avoiding Paper JamsBy selecting the correct paper types, most paper jams

6-10ALIGNMENT & ADJUSTMENTSSamsung ElectronicsServiceManual6.4 Sample PatternThis product has the several sample patterns for maintenance. With t

6-11Samsung ElectronicsALIGNMENT & ADJUSTMENTSService Manual6.4.2 Printing a cleaning sheet If you are experiencing blurred, faded or smeared prin

6-12ALIGNMENT & ADJUSTMENTSSamsung ElectronicsServiceManualCOMPONENT REPLACEMENT CYCLEPick-up Roller 60,000 PagesPaepr Feeding Roller(Friction Pad

6-13Samsung ElectronicsALIGNMENT & ADJUSTMENTSService Manual6.7 Periodic Defective ImageIf the delinquent image regularly occurs in the printed-pa

6-14ALIGNMENT & ADJUSTMENTSSamsung ElectronicsServiceManual

777-1Samsung ElectronicsTROUBLESHOOTINGService Manual7. Troubleshooting7.1 Bad image 7.1.1 Vertical Black Line and Band • Description1. Straight thin

7-2TROUBLESHOOTINGSamsung ElectronicsService Manual7.1.3 Horizontal Black Band• Description1. Dark or blurry horizontal stripes occur in the printing

7-3Samsung ElectronicsTROUBLESHOOTINGService Manual7.1.5 Light Image• Description The printed image is light, with no ghost.Digital PrinterDigital Pr

7-4TROUBLESHOOTINGSamsung ElectronicsService Manual7.1.7 Uneven Density• Description Print density is uneven between left and right.Check and Cause S

1-4PrecautionsSamsung ElectronicsService Manual1.3 ESD PrecautionsCertain semiconductor devices can be easily damaged by static electricity. Such comp

7-5Samsung ElectronicsTROUBLESHOOTINGService Manual7.1.9 Ghost (1) • Description Ghost occurs at 75.5 mm intervals of the OPC drum in the whole print

7-6TROUBLESHOOTINGSamsung ElectronicsService Manual7.1.11 Ghost (3) • Description White ghost occurs in the black image printing at 32mm intervals.Dig

7-7Samsung ElectronicsTROUBLESHOOTINGService Manual7.1.14 Satins on Back of Page • Description The back of the page is stained at 47 mm intervals.Digi

7-8TROUBLESHOOTINGSamsung ElectronicsService Manual7.2.1 Wrong Print Position• Description Printing begins at wrong position on the paper.Check and

7-9Samsung ElectronicsTROUBLESHOOTINGService ManualCheck and Cause Solution1. If the recording paper is jammed in front of or insidethe fuser. (Perfo

7-10TROUBLESHOOTINGSamsung ElectronicsService Manual7.2.5 Multi-Feeding • Description Multiple sheets of paper are fed at once.Check and Cause Solut

7-11Samsung ElectronicsTROUBLESHOOTINGService Manual7.2.7 Paper rolled in the Toner Cartridge (OPC Drum)• Description Paper is rolled up in the OPC

7-12TROUBLESHOOTINGSamsung ElectronicsService Manual7.3 Malfunction7.3.1 All LEDs blinking (Fuser Error)• Description1. All the lamps on the operator

7-13Samsung ElectronicsTROUBLESHOOTINGService Manual7.3.3 Not function of the gear of the fuser due to melting away• DescriptionThe motor breaks away

7-14TROUBLESHOOTINGSamsung ElectronicsService Manual7.3.6 Cover Open• DescriptionThe ERROR lamp is on even when the print cover is closed.Check and C

222-1Samsung ElectronicsREFERENCE INFORMATIONService Manual2. Reference InformationThis chapter describes the reference information for applying this

7-15Samsung ElectronicsTROUBLESHOOTINGService Manual7.3.8 Defective motor operation• DescriptionMain motor is not driving when printing, and paper do

7-16TROUBLESHOOTINGSamsung ElectronicsService Manual7.3.10 Vertical Line Getting Curved• DescriptionWhen printing, vertical line gets curved.Check and

7-17Samsung ElectronicsTROUBLESHOOTINGService Manual7.4 Toner Cartridge ServiceIt is not guaranteed for the default caused by using other toner cartri

7-18TROUBLESHOOTINGSamsung ElectronicsService Manual7.4.4 Signs and Measures at Poor toner cartridgeFault Signs Cause & Check SolutionLight imag

7-19Samsung ElectronicsTROUBLESHOOTINGService ManualFault Signs Cause & Check SolutionWhite Black spotRecycled product• Light or dark blackdots

7-20TROUBLESHOOTINGSamsung ElectronicsService Manual7.5 Bad Environment of The Software7.5.1 The printer is not working (1) • DescriptionWhile Power

7-21Samsung ElectronicsTROUBLESHOOTINGService Manual7.5.2 The printer is not working (2) • DescriptionAfter receiving the printing order, no response

7-22TROUBLESHOOTINGSamsung ElectronicsService Manual7.5.3 Abnormal Printing• DescriptionThe printing is not working properly even when the cable has

7-23Samsung ElectronicsTROUBLESHOOTINGService Manual7.5.4 SPOOL Error• DescriptionTo spool which stands for "simultaneous peripheral operations

888-1Samsung ElectronicsEXPLODED VIEW & PA RTS LISTService Manual8. Exploded Views and Parts List5-1. Main Assembly . . . . . . . . . . . . . .

2-2REFERENCE INFORMATIONSamsung ElectronicsService Manual2.2 Acronyms and AbbreviationsThe table in the below explains abbreviations used in this serv

8-2EXPLODED VIEW & PA RTS LISTSamsung ElectronicsService Manual8.1 Main Assembly096782-22-32-42-52-62-6152-12-72-81210411-11111-211-311-411-511-31

8-3Samsung ElectronicsEXPLODED VIEW & PA RTS LISTService ManualNo. Description SEC.Code Q’ty SA Remark0 ML-1710 / ML-17501 ELA UNIT-FRAME LOWER, 1

8-4EXPLODED VIEW & PA RTS LISTSamsung ElectronicsService Manual8.2 Frame Unit Assembly012435676112695395113141516175718192020212223242526373127282

8-5Samsung ElectronicsEXPLODED VIEW & PA RTS LISTService ManualNo. Description SEC.Code Q’ty SA Remark0 ELA UNIT-FRAME LOWER, 110V JC96-02732A 1 O

8-6EXPLODED VIEW & PA RTS LISTSamsung ElectronicsService ManualFrame Unit Assembly Parts List(Cont.)SA : Service AvailableO : Service available X

8-7Samsung ElectronicsEXPLODED VIEW & PA RTS LISTService Manual8.3 Drive Unit Assembly01234456789HARNESS-MOTOR5No. Description SEC.Code Q’ty SA Re

8-8EXPLODED VIEW & PA RTS LISTSamsung ElectronicsService Manual8.4 Cassette Unit Assembly01234556789101115161812131417

8-9Samsung ElectronicsEXPLODED VIEW & PA RTS LISTService ManualNo. Description SEC.Code Q’ty SA Remark0 MEA UNIT-CASSETTE, USA JC97-01750A 1 O1 FR

8-10EXPLODED VIEW & PA RTS LISTSamsung ElectronicsService Manual8.5 Fuser Unit Assembly01234532326337891011121314151617181920213122232425262730282

8-11Samsung ElectronicsEXPLODED VIEW & PA RTS LISTService ManualNo. Description SEC.Code Q’ty SA RemarkOAS-FUSER 110V JC81-01689A1 O 110V1 COVER-M