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Make/Model Information:

  • Brand:   Samsung
  • Models included:
    • Samsung Laser ML-1210
    • Samsung Laser ML-1250
    • Samsung Laser ML-1220M

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English
  • Number of pages:   88
  • File size:  ∼ 7.75  MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   BMSG-1014

NOTE:  This list was created by program script and may not accurately represent the text from the source pages.   For full preview please click on 'Download sample':

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SERVICE
LASER PRINTER
ML-1200 Series
ML-1210 / ML-1250 / ML-1220M
Manual
LASER PRINTER CONTENTS
1. Precautions
2. Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. Exploded Views and Parts List
6. Block Diagram
7. Connection Diagram
Contents
Samsung Electronics
CONTENTS
1. Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(1-1)
1-1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(1-1)
1-2 Precautions on Disassembly and Reassembly . . . . . . . . . . . . . . .page(1-1)
1-3 Tools for Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(1-2)
2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(2-1)
3. Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-1)
3-1 Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-1)
3-2 LED Panel PBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-2)
3-3 LSU(Laser Scanning Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-2)
3-4 Transfer Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-3)
3-5 Motor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-3)
3-6 HVPS Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-4)
3-7 Fuser Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-4)
3-8 Thermostat and Halogen Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-5)
3-9 SMPS Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-6)
3-10 Main Board and Sensor Board . . . . . . . . . . . . . . . . . . . . . . . . . . .page(3-7)
4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-1)
4-1 How to use DCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-2)
4-2 The cause and solution of Bad image . . . . . . . . . . . . . . . . . . . . . .page(4-5)
4-3 The cause and solution of the bad discharge. . . . . . . . . . . . . . . . .page(4-12)
4-4 The cause and solution of the malfunction . . . . . . . . . . . . . . . . . . .page(4-16)
4-5 Toner Cartridge Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-21)
4-6 The cause and solutions of bad environment of the software . . . .page(4-25)
5. Exploded Views and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . .page(5-1)
5-1 Expolded Views and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(5-2)
5-2 Front Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(5-4)
5-3 Engine/Frame Lower Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .page(5-6)
5-4 Fuser Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(5-8)
5-5 Shield Engine Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(5-10)
5-6 RX Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(5-12)
5-7 Plate-Upper Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(5-14)
6. Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(6-1)
6-1 Block Diagram(GDI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(6-1)
6-2 Block Diagram(PCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(6-2)
7. Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(7-1)
7-1 Connection Diagram(GDI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(7-1)
7-2 Connection Diagram(PCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(7-2)
Troubleshooting
4-1 Samsung Electronics
4. Troubleshooting
4-1 How to use DCU
4-1-1 DCU Setup
4-1-2 Code
4-1-3 Self Diagnostic Mode
4-1-4 Self Test Button
4-1-5 Paper Path Layout
4-2 The cause and solution of Bad image
4-2-1 Vertical Black Line and Band
4-2-2 Vertical White Line
4-2-3 Horizontal Black Band
4-2-4 Black/White Spot
4-2-5 Light Image
4-2-6 Dark Image or a Black
4-2-7 Uneven Density
4-2-8 Background
4-2-9 Ghost (1)
4-2-10 Ghost (2)
4-2-11 Ghost (3)
4-2-12 Ghost (4)
4-2-13 Satins on the Face of Page
4-2-14 Satins on Back of Page
4-2-15 Blank Page Print out (1)
4-2-16 Blank Page Print out (2)
4-3 The cause and solution of the bad discharge
4-3-1 Wrong Print Position
4-3-2 JAM 0
4-3-3 JAM 1
4-3-4 JAM 2
4-3-5 Multi-Feeding
4-3-6 Paper rolled in the fuser
4-3-7 OPC
4-4 The cause and solution of the malfunction
4-4-1 All LEDs blinking (Fuser Error)
4-4-2 All LEDs blinking (SCAN ERROR) .Page(4-16)
4-4-3 Not function of the gear of the fuser due to
melting away
4-4-4 Paper Empty
4-4-5 Paper Empty without indication
4-4-6 Cover Open
4-4-7 No lamp on when the cover is open
...........................................................Page(4-18)
4-4-8 Defective motor operation
4-4-9 No Power
4-4-10 Vertical Line Getting Curved
4-5 Toner Cartridge Service
4-5-1 Precautions on Safe-keeping of Toner Cartridge
..........................................................Page(4-21)
4-5-2 Service for the Life of Toner Cartridge
..........................................................Page(4-21)
4-5-3 Service for Judgement of Inferior Expendables
and the Standard of Guarantee
4-5-4 Signs and Measures at Poor toner cartridge
..........................................................Page(4-22)
4-6 The cause and solutions of bad environment
of the software 4-6-1 The printer is not working (1)
4-6-2 The printer is not working (2)
4-6-3 Abnormal Printing
4-6-4 SPOOL Error
Deal drawings and service parts are declared for the items with higher rate
of inferiority and replaceable in the level of service description only.
If inferiority occurs, you can replace the parts by the unit declared in deal
drawings and service items.
Exploded Views and Parts List
5-1 Samsung Electronics
5. Exploded Views and Parts List
DIVISION PART CODE DESCRIPTION
A/S Private **81-****** AS-*****
(JB81-00039A) (AS-USE)
ASS’Y Part **75-****** MEC-*****
(JB75-00068A) (MEC-CHUTE)
ASS’Y Part **92-****** PBA ******
(JB92-01131A) (PBA MAIN-CONTROLLER)
ASS’Y Part **97-****** MEA ******
(JB97-01089A) (MEA UNIT-PULLEY IDLE)
Part code and Description is quoted and controlled by determined standard. Refer to this determined
standard, it will help with ordering Part. There are two kinds of Part code inscription type.
Type 1 : Controlled by Company : It can be commonly used for all kinds of product SEC produce.
Mostly, electronics Parts.
Type 2 : Controlled by Division : It is used or one produce. Mostly, Mostly, mechanical Parts. A/S privately used part : It is only used for A/S .
Ass’y part :
Assembled by more than 2 Parts. If necessary part is not A/S Part, Ass’y part including
necessary par can be used. It is shown in the diagram and drawing of SVC manual. Ass’y part and A/S privately used Part is distinguished by part Code and Description.
The are inscription type 2. It is recognized by Part character and front side of description.
Way to observe Part Code & Description
ex ) 2007-007961
ex ) JB96-01268A
ELA UNIT-COVER TOP


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