Samsung CLP-620ND User manual

Service Manual
Color Laser Printer
CLP-620ND
CLP-670N/670ND
■ Printing speed
- CLP-620 series : Black/Color 20 ppm (A4)
- CLP-670 series : Black/Color 24 ppm (A4)
■ Resolution : up to 9600x600 dpi effective output
■ Toner cartridge
- Initial : 2.5K/ 2K (black/ color)
- Sales : 2.5K/2K (black/ color)
5K/4K (black/ color)
■ Machine Life : 200K or 5 years
■ Paper handling
- Max. 850 sheets paper capacity
- 250 sheets cassette, 500 sheets option cassette
- MP tray : 100 sheets
■ Memory
- CLP-620 series : 256 MB (Max. 512 MB)
- CLP-670 series : 256 MB (Max. 784 MB)
■ Network, USB 2.0
■ 2 Line LCD
The keynote of Product

1.1 Safety Warning …………………………………………………… 1-1
1.2 Caution for safety ………………………………………………… 1-2
1.3 ESD Precautions ………………………………………………… 1-5
2.1 Product Summary ………………………………………………… 2-1
2.2 Sepcications …………………………………………………… 2-2
2.2.1 General Print Engine ………………………………………… 2-2
2.2.2 Controller & S/W …………………………………………… 2-3
2.2.3 Paper Handling ……………………………………………… 2-5
2.2.4 Reliability and service ……………………………………… 2-7
2.2.5 Environment ………………………………………………… 2-8
2.2.6 Consumables ………………………………………………… 2-9
2.2.7 Maintenance parts ………………………………………… 2-10
2.2.8 Option ………………………………………………………… 2-10
2.3 Model Comparison Table ………………………………………… 2-11
2.4 Product Conguration …………………………………………… 2-12
2.4.1 Printer external ……………………………………………… 2-12
2.4.2 Main PBA …………………………………………………… 2-16
2.4.3 SMPS Board ………………………………………………… 2-22
2.4.4 HVPS Board ………………………………………………… 2-24
2.4.5 Fuser Drive Board ………………………………………… 2-26
2.4.6 OPE Board ………………………………………………… 2-27
2.4.7 Feeding Section …………………………………………… 2-28
2.4.8 LSU …………………………………………………………… 2-29
2.4.9 Fuser Unit …………………………………………………… 2-30
2.4.10 PTB(Paper Transfer Belt) Unit …………………………… 2-31
2.4.11 Motors ……………………………………………………… 2-31
2.4.12 Sensors …………………………………………………… 2-32
chapter 1 Precautions
chapter 2 Product Overview
Contents

3.1 Precautions when replacing parts ……………………………… 3-1
3.1.1 Precautions when assembling and disassembling ……… 3-1
3.1.2 Preautions when handling PBA …………………………… 3-1
3.1.3 Releasing Plastic Latches ………………………………… 3-1
3.2 Replacing a Maintenance Parts ………………………………… 3-2
3.2.1 Fuser Unit …………………………………………………… 3-2
3.2.2 Pick up roller ………………………………………………… 3-3
3.3 General Disassembly …………………………………………… 3-4
3.3.1 Cover Unit …………………………………………………… 3-4
3.3.2 Front Cover Unit …………………………………………… 3-8
3.3.3 OPE Unit……………………………………………………… 3-9
3.3.4 HVPS Board ………………………………………………… 3-10
3.3.5 Main PBA …………………………………………………… 3-11
3.3.6 SMPS Board ………………………………………………… 3-11
3.3.7 Fuser Control Board ………………………………………… 3-12
3.3.8 LSU …………………………………………………………… 3-12
3.3.9 SOLENOID ………………………………………………… 3-13
3.3.10 Drive-Exit Bracket ………………………………………… 3-14
3.3.11 Drive-Fuser Bracket ……………………………………… 3-15
4.1 Alignment and Adjustments ……………………………………… 4-1
4.1.1 Control Panel ………………………………………………… 4-1
4.1.2 Understanding The Status LED …………………………… 4-2
4.1.3 Menu Overview ……………………………………………… 4-3
4.1.4 Tech Mode …………………………………………………… 4-7
4.1.5 Firmware Upgrade ………………………………………… 4-16
4.2 Troubleshooting…………………………………………………… 4-22
4.2.1 Procedure of Checking the Symptoms …………………… 4-22
4.2.2 Error Message and Troubleshooting ……………………… 4-23
4.2.3 Feeding Problems and solutions ………………………… 4-48
chapter 4 Alignment & Troubleshooting
Contents
chapter 3 Maintenance and Disassembly

4.2.4 Image Quality Problems and solutions …………………… 4-55
4.2.5 Common Problems and solutions ………………………… 4-62
4.2.6 Network problems and soltutions ………………………… 4-63
5.1 Main PBA (24ppm) Block Diagram …………………………… 5-1
5.2 Main PBA (20ppm) Block Diagram …………………………… 5-2
5.3 OPE PANEL Block Diagram …………………………………… 5-3
5.4 Connection Diagram……………………………………………… 5-4
6.1 Tools for Troubleshooting ……………………………………… 6-1
6.2 Acronyms and Abbreviations …………………………………… 6-2
6.3 Select a location for the printer ………………………………… 6-4
6.4 A4 ISO 19752 Standard Pattern ………………………………… 6-5
Contents
chapter 6 Reference Information
chapter 5 System Diagram
attached Parts Catalog

Alignment & Troubleshooting
Service Manual
4-23 Samsung Electronics
4.2.2 Error Message and Troubleshooting
Messages appear on the Smart Panel program window or on the control panel to indicate machine status or
errors. Refer to the tables below to correct the problem.
Error Code Error Message Troubleshooting Page
01-000 Door Open/Check Transfer Belt 21 page
01-004 Paper Jam in MP Tray 22 page
01-005 Paper Jam in Tray1 23 page
01-006, 01-018 Paper Jam in tray2 24 page
01-009 Paper Jam inside machine 25 page
01-010 Paper Jam in exit area 26 page
01-014 Paper Jam bottom of duplex 27 page
01-017 Output bin Full Remove paper 28 page
02-000 Error #02-000. Turn off then on 29 page
02-001, 02-006 Error #02-001/02-006. Turn off then on 30 page
02-002 Error #02-002. Turn off then on 31 page
02-005 Error #02-005. Turn off then on 31 page
03-007 Error #03-007. Turn off then on 32 page
03-008 Error #03-008. Turn off then on 32 page
03-009 Error #03-009. Turn off then on 32 page
03-015 Error #03-015. Turn off then on 33 page
04-001 Error #04-001. Turn off then on 34 page
04-002 Error #04-002. Turn off then on 34 page
06/25/26/27-006 Error #06/25/26/27-006 [XXX] toner ※[XXX] : color 35 page
06/25/26/27-007 Error #06/25/26/27-007 [XXX] toner ※[XXX] : color 35 page
06/25/26/27-020 Error #06/25/26/27-020 [XXX] toner ※[XXX] : color 35 page
12-000 Load [Letter] in Tray1 36 page
12-001 Load [Letter] in Tray2 36 page
12-004 Load [Letter] in MP 37 page
21-002 Paper Empty in Tray1 38 page
21-003 Pulled Out Tray1 Cassette 39 page
21-010 Paper Empty in MP Tray 40 page
21-018 Paper Empty in Tray2 41 page
21-019 Pulled Out Tray2 Cassette 42 page
28-001 Not installed Transfer belt 43 page
28-002 Not Compatible Transfer belt 44 page
28-004 Replace new Fuser unit 44 page
28-005 Not Installed Fuser unit 44 page

Parts Catalog -CLP-620ND
amsung Electronics Service Manual
Parts Catalog -CLP-620ND
msung Electronics Service Manual
Exploded View and Parts List
Harness Connection Table ……………………………………………………………………………………………………………………………………………4
Thumbnail ………………………………………………………………………………………………………………………………………………………………6
1. Main …………………………………………………………………………………………………………………………………………………………………7
2. COVER ………………………………………………………………………………………………………………………………………………………………9
3. TOP COVER ……………………………………………………………………………………………………………………………………………………… 11
4. FRONT COVER ………………………………………………………………………………………………………………………………………………… 13
5. FRAME …………………………………………………………………………………………………………………………………………………………… 15
6. DRIVE_FUSER-BRACKET …………………………………………………………………………………………………………………………………… 17
7. FRAME-BOTTOM ……………………………………………………………………………………………………………………………………………… 19
8. FRAME-LEFT …………………………………………………………………………………………………………………………………………………… 21
9. FRAME-RIGHT ………………………………………………………………………………………………………………………………………………… 23
10. FEED DRIVE …………………………………………………………………………………………………………………………………………………… 25
11. FUSER …………………………………………………………………………………………………………………………………………………………… 27
12. Cassette ………………………………………………………………………………………………………………………………………………………… 30
13. SCF Unit ………………………………………………………………………………………………………………………………………………………… 32
14. SCF Cassette …………………………………………………………………………………………………………………………………………………… 34
Contents