Samsung SCX-8030ND Manuel utilisateur

Service Manual

Digital Laser MFP

SCX-8030ND / 8040ND series

1. Print / Copy speed

• SCX-8030ND : 30 ppm (A4)

• SCX-8040ND : 40 ppm (A4)

2. 800 MHz CPU

3. 250GB HDD

4. 512 MB Memory (Max. 1GB)

5. 8.9 inch color graphic touch-screen LCD

6. Various option units

• 3K Booklet ﬁnisher, 1K Standard ﬁnisher

DCF, HCF, Punch unit , Multi fax etc.

The keynote of Product

ⓒ

Samsung Electronics Co.,Ltd. August. 2010

Printed in Korea.

VERSION NO. : 0.04 CODE : 80x0-00000E

GSPN (Global Service Partner Network)

Area Web Site

Europe,MENA, CIS,

Africa https://gspn1.samsungcsportal.com

E.Asia, W.Asia,

China, Japan https://gspn2.samsungcsportal.com

N.America,

S.America https://gspn3.samsungcsportal.com

1.1 Safety Warning …………………………………………………… 1-1

1.2 Caution for safety ………………………………………………… 1-2

1.3 ESD Precautions ………………………………………………… 1-5

2.1 Speciﬁcations …………………………………………………… 2-1

2.2 System conﬁguration …………………………………………… 2-7

2.3 Sensor location …………………………………………………… 2-16

2.4 Paper handling section ………………………………………… 2-20

2.4.1 Overview……………………………………………………… 2-20

2.4.2 Components ………………………………………………… 2-23

2.4.3 Functions …………………………………………………… 2-24

2.4.4 Paper tray …………………………………………………… 2-25

2.4.5 Pick up unit…………………………………………………… 2-26

2.4.6 Registration unit …………………………………………… 2-27

2.4.7 MPF unit……………………………………………………… 2-28

2.5 Image formation ………………………………………………… 2-29

2.5.1 Printing process overview ………………………………… 2-29

2.5.2 Imaging unit ………………………………………………… 2-30

2.6 Fuser unit ………………………………………………………… 2-34

2.6.1 Fuser unit overview ………………………………………… 2-34

2.6.2 Fuser unit components……………………………………… 2-35

2.6.3 Fuser unit drive ……………………………………………… 2-36

2.6.4 Temperature control ………………………………………… 2-37

2.7 Laser scanning unit ……………………………………………… 2-38

2.7.1 Laser scanning unit overview ……………………………… 2-38

2.7.2 Laser scanning optical path………………………………… 2-39

2.7.3 Laser synchronizing detectors …………………………… 2-40

2.8 Printer Drive system……………………………………………… 2-41

chapter 1 Precautions

chapter 2 Product decription

Contents

2.8.1 Drive Motors ………………………………………………… 2-41

2.8.2 Main drive unit (OPC, DEVE, MP, REGI, DUPLEX) …… 2-43

2.8.3 Pick-up Drive ………………………………………………… 2-44

2.8.4 Fuser /Exit Drive …………………………………………… 2-45

2.8.5 Toner Duct Drive …………………………………………… 2-46

2.8.6 Drive of Toner Supply ……………………………………… 2-46

2.8.7 WTB leveling drive ………………………………………… 2-46

2.8.8 PR Release drive …………………………………………… 2-47

2.9 Scanner system ………………………………………………… 2-48

2.9.1 Scannner system overview ………………………………… 2-48

2.9.2 Scanning System components …………………………… 2-49

2.10 DADF system …………………………………………………… 2-51

2.10.1 DADF systme overview …………………………………… 2-51

2.10.2 Electric parts layout ………………………………………… 2-52

2.10.3 Description of drive system operations…………………… 2-53

2.11 Printer Electronics conﬁguration ……………………………… 2-59

2.11.1 Video controller …………………………………………… 2-62

2.11.2 OPE controller …………………………………………… 2-70

2.11.3 Engine controller ………………………………………… 2-74

2.11.4 Scan controller …………………………………………… 2-77

2.11.5 DADF controller…………………………………………… 2-78

2.11.6 Interface part ……………………………………………… 2-79

2.11.7 Connection part…………………………………………… 2-79

2.11.8 SMPS board ……………………………………………… 2-80

2.11.9 HVPS board ……………………………………………… 2-82

2.11.10 Eraser PBA ……………………………………………… 2-83

2.11.11 DC Power PBA …………………………………………… 2-83

2.11.12 Cassette Joint PBA ……………………………………… 2-84

2.11.13 Side Joint PBA …………………………………………… 2-84

2.11.14 Toner Connector PBA …………………………………… 2-85

2.11.15 CRUM PBA ……………………………………………… 2-86

2.11.16 Development Crum Interface PBA……………………… 2-86

2.11.17 Deve Crum Joint PBA …………………………………… 2-87

2.11.18 Toner Curm Joint PBA …………………………………… 2-87

Contents

chapter 3 Replacement procedure

2.11.19 Fuser PBA ………………………………………………… 2-87

2.11.20 Waste Sensor PBA ……………………………………… 2-88

2.11.21 LED Panel PBA…………………………………………… 2-88

2.11.22 Scan Joint PBA…………………………………………… 2-89

2.11.23 CCDM PBA ……………………………………………… 2-90

2.11.24 Scan Cover Open Sensor PBA ………………………… 2-91

2.11.25 DADF Length Sensor PBA ……………………………… 2-91

2.11.26 DADF Width Sensor PBA ……………………………… 2-92

2.11.27 DADF Mixed Sensor PBA ……………………………… 2-92

2.11.28 DADF LED Panel PBA…………………………………… 2-93

2.11.29 Exit LED Panel PBA……………………………………… 2-93

2.12 Heating cables ………………………………………………… 2-94

3.1 General Disassembly Procedure Precautions ………………… 3-1

3.2 Cover ……………………………………………………………… 3-2

3.2.1 Front cover…………………………………………………… 3-2

3.2.2 Left cover …………………………………………………… 3-3

3.2.3 Rear cover …………………………………………………… 3-3

3.2.4 Right cover…………………………………………………… 3-4

3.3 OPE unit…………………………………………………………… 3-5

3.4 Scan unit ………………………………………………………… 3-10

3.4.1 Scan glass …………………………………………………… 3-11

3.4.2 Scan main PBA……………………………………………… 3-12

3.4.3 Lamp ………………………………………………………… 3-13

3.4.4 Original size detection sensor……………………………… 3-15

3.4.5 Joint PBA …………………………………………………… 3-15

3.4.6 Joint sub PBA ……………………………………………… 3-16

3.4.7 Fan …………………………………………………………… 3-16

3.4.8 Pulley-belt …………………………………………………… 3-17

3.4.9 Scan motor and gear belt ………………………………… 3-18

Contents

3.4.10 Home sensor ……………………………………………… 3-18

3.4.11 Scanner heating cable …………………………………… 3-19

3.4.12 Align set …………………………………………………… 3-23

3.5 Fuser unit ………………………………………………………… 3-24

3.6 Side Unit…………………………………………………………… 3-35

3.6.1 Duplex sensors ……………………………………………… 3-36

3.7.2 Transfer sensors …………………………………………… 3-37

3.7.3 MP unit ……………………………………………………… 3-39

3.7 Electrical components …………………………………………… 3-44

3.7.1 Engine controller …………………………………………… 3-44

3.7.2 Hard Disk Drive (HDD)……………………………………… 3-45

3.7.3 Video controller ……………………………………………… 3-46

3.7.4 Joint PBA …………………………………………………… 3-47

3.7.5 Toner PBA …………………………………………………… 3-47

3.7.6 Toner motor ………………………………………………… 3-48

3.7.7 DC power PBA ……………………………………………… 3-49

3.7.8 HVPS PBA…………………………………………………… 3-50

3.7.9 Lift motor …………………………………………………… 3-51

3.7.10 SMPS PBA ………………………………………………… 3-52

3.7.11 SMPS FAN ………………………………………………… 3-53

3.7.12 Ozone Filter FAN ………………………………………… 3-55

3.7.13 Side joint PBA ……………………………………………… 3-56

3.7.14 Eraser Lamp ……………………………………………… 3-57

3.7.15 Waste sensor PBA ………………………………………… 3-58

3.7.16 Temperature sensor ……………………………………… 3-58

3.8 Main drive unit …………………………………………………… 3-60

3.8.1 Main drive motor …………………………………………… 3-62

3.8.2 Main drive clutch …………………………………………… 3-62

3.9 Exit drive unit …………………………………………………… 3-63

3.10 Toner Duct drive unit …………………………………………… 3-65

3.11 PR Release drive unit ………………………………………… 3-66

3.12 Pick-up drive unit………………………………………………… 3-67

3.13 WTB leveling drive unit ………………………………………… 3-68

3.14 LSU (Laser Scanning Unit) …………………………………… 3-71

Contents

chapter 4 Troubleshooting

Contents

3.15 Frame Duct …………………………………………………… 3-74

3.16 DADF Unit ……………………………………………………… 3-75

3.16.1 Width / Length sensor PBA ……………………………… 3-84

3.16.2 DADF Main PBA…………………………………………… 3-85

3.16.3 DADF Motors ……………………………………………… 3-87

3.16.4 DADF cover open sensor ………………………………… 3-90

3.16.5 Pick-Up Guide Sensor PBA ……………………………… 3-91

3.16.6 DADF Solenoid …………………………………………… 3-93

3.17 Exit Unit ………………………………………………………… 3-94

3.18 Regi. Unit ……………………………………………………… 3-96

3.19 Pick-Up Unit …………………………………………………… 3-98

3.20 Cassette Heating Cable ……………………………………… 3-100

4.1 Entering/Exiting Diagnostics Mode……………………………… 4-1

4.2 Serive mode menu tree…………………………………………… 4-2

4.2.1 Information tab ……………………………………………… 4-2

4.2.2 Maintenance counts tab …………………………………… 4-4

4.2.3 Diagnostics tab …………………………………………… 4-5

4.2.4 Service Functions ………………………………………… 4-5

4.3 Information ………………………………………………………… 4-6

4.3.1 General ……………………………………………………… 4-6

4.3.2 Supply status ……………………………………………… 4-6

4.3.3 Software version …………………………………………… 4-8

4.3.4 Service Hours ……………………………………………… 4-8

4.3.5 Fault Log …………………………………………………… 4-8

4.3.5 Print reports ………………………………………………… 4-8

4.4 Maintenance Counts …………………………………………… 4-9

4.4.1 Fault count ………………………………………………… 4-9

4.4.2 Jam count …………………………………………………… 4-10

4.4.3 Part replacement count …………………………………… 4-12

4.5 Diagnotics ………………………………………………………… 4-13

Contents

4.5.1 Engine diagnostics ………………………………………… 4-13

4.5.1.1 NVM Read/Write ……………………………………… 4-13

4.5.1.2 Engine Test Routines ………………………………… 4-13

4.5.2 Fax diagnostics …………………………………………… 4-14

4.5.2.1 Fax NVM Read/Write ………………………………… 4-14

4.5.2.2 Fax Test Routines ……………………………………… 4-15

4.5.3 Scanner diagnostics ……………………………………… 4-17

4.5.3.1 Shading Test ………………………………………… 4-17

4.5.3.2 Scanner/DADF NVM Read/Write …………………… 4-17

4.5.3.3 Scanner/DADF Test Routines ……………………… 4-18

4.5.4 Adjustment ………………………………………………… 4-20

4.5.4.1 Print Adjustment ……………………………………… 4-20

4.5.4.2 Copy Adjustment ……………………………………… 4-22

4.5.4.3 Scan Area Adjustment ………………………………… 4-23

4.5.4.4 DADF Adjustment ……………………………………… 4-25

4.5.4.5 Finisher Adjustment …………………………………… 4-27

4.5.5 ACS ………………………………………………………… 4-30

4.5.6 Color Management ………………………………………… 4-31

4.6 Sevice functions ………………………………………………… 4-32

4.6.1 Main Memory Clear ………………………………………… 4-32

4.6.2 Hard Disk Maintenance …………………………………… 4-32

4.6.3 Debug Log …………………………………………………… 4-32

4.6.4 Port …………………………………………………………… 4-33

4.6.5 Capture Log ………………………………………………… 4-33

4.6.6 Toner Save ………………………………………………… 4-33

4.6.7 Count Setting of Large Page ……………………………… 4-33

4.6.8 System Recovery …………………………………………… 4-33

4.6.9 User Data Management …………………………………… 4-34

4.6.10 TR Control Mode ………………………………………… 4-35

5.1 Updating from the Printer Control Panel ……………………… 5-2

5.2 Updating from the Network …………………………………… 5-8

chapter 5 Updating Firmware

Contents

6.1 PM Supplies ……………………………………………………… 6-1

6.2. PM Procedures ………………………………………………… 6-5

6.2.1 Toner cartridge ……………………………………………… 6-5

6.2.2 Imaging unit ………………………………………………… 6-7

6.2.3 2nd Transfer roller ………………………………………… 6-11

6.2.4 Fuser Unit …………………………………………………… 6-12

6.2.5 Pick up/ Retard/ Forward roller …………………………… 6-13

6.2.6 Ozone Filter ………………………………………………… 6-13

6.2.7 DADF Rollers (Pick up /ADF/ Retard) …………………… 6-14

6.2.8 MP Pick up / Retard / Forward roller …………………… 6-19

6.2.9 Scanner Fan Filter ………………………………………… 6-21

6.3. Cleaning the PM parts ………………………………………… 6-22

6.3.1 Cleaning the charge scorotron …………………………… 6-22

6.3.2 Cleaning the pick up roller ………………………………… 6-22

6.3.3 Cleaning the Regi roller …………………………………… 6-23

6.3.4 Cleaning the tray1 feed roller ……………………………… 6-23

6.3.5 Cleaning the tray2 feed roller ……………………………… 6-24

6.3.6 Cleaning the DADF retard rubber pad …………………… 6-25

6.3.7 Cleaning the DADF rollers ………………………………… 6-26

6.3.7 Cleaning the ADF glass …………………………………… 6-27

7.1 Procedure of checking the symptoms ………………………… 7-1

7.2 Error code and troubleshooting ………………………………… 7-3

7.2.1 Error code and error message …………………………… 7-3

7.2.2 Error Code Details ………………………………………… 7-11

7.3 Image quality problems and solutions ………………………… 7-101

7.3.1 Vertical Lines ………………………………………………… 7-102

7.3.2 Horizontal Lines……………………………………………… 7-103

7.3.3 White spot …………………………………………………… 7-104

7.3.4 Black background ………………………………………… 7-105

7.3.5 Blurred image ……………………………………………… 7-106

chapter 6 Preventive Maintenance (PM)

chapter 7 Troubleshooting

Contents

7.3.6 Uneven pitch and jitter image ……………………………… 7-107

7.3.7 Skewed image ……………………………………………… 7-108

7.3.8 Low image density ………………………………………… 7-109

7.3.9 Blank copy, Black copys …………………………………… 7-110

7.3.10 Uneven density in sub scan direction …………………… 7-112

7.3.11 Uneven density in main scan direction ………………… 7-113

7.3.12 Poor fusing performance ………………………………… 7-114

7.3.13 Stain on the paper back side …………………………… 7-115

7.3.14 DADF skew testing ……………………………………… 7-116

7.4 Other Errors ……………………………………………………… 7-121

8.1 Engine 1…………………………………………………………… 8-1

8.2 Engine 2…………………………………………………………… 8-2

8.3 Main board & OPE ……………………………………………… 8-3

8.4 Scan & DADF …………………………………………………… 8-4

8.5 Bottle joint board & side joint board …………………………… 8-5

8.6 DC control board ………………………………………………… 8-6

8.7 Cassette joint board & Drive joint board ……………………… 8-7

8.8 Heater & Fuse …………………………………………………… 8-8

9.1 Entry Point ………………………………………………………… 9-1

9.2 USB ………………………………………………………………… 9-2

9.3 Network …………………………………………………………… 9-4

9.4 Conﬁrmation Page ……………………………………………… 9-5

9.5 Error Page ………………………………………………………… 9-6

9.6 Progress Page …………………………………………………… 9-7

9.7 Error List …………………………………………………………… 9-8

9.8 HDD Repair ……………………………………………………… 9-8

9.9 HDD Failure ……………………………………………………… 9-10

chapter 9 System Recovery

chapter 8 System Diagram

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