SCHEMATIC DIAGRAMS

3.3 HVPS Circuit Diagram (1/2)

5V

 

R422

R411

2.2K

5.6K

 

MHV-PWM

 

3

4

CN1-#6

U2-B

 

7407

5V

R501

5.6K

BIAS-PWM

1 2

CN1-#7 U2-A 7407

18V

 

 

 

C402

R407

 

24VS

 

 

 

 

 

 

 

R401

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

103

240K

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T401

C404

D401

 

R426

 

 

 

 

R405

 

 

 

 

 

 

KAB-006

3KV 471

4KV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MGR1/2W 100KF

 

 

 

 

220KF

 

 

 

 

 

1

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R403

 

R404

 

 

 

 

 

 

 

 

 

 

 

 

R413

 

110KF

 

33K

 

 

12

 

 

 

 

 

 

 

 

 

 

Q401

 

 

 

 

+

14

 

Q402

5

 

6

 

 

MGR1/2W 6MF

 

A708-Y

 

 

 

 

 

 

D526-Y

 

 

 

C406

 

 

 

 

 

13

 

 

2

 

 

 

 

 

 

 

 

 

 

-

 

 

 

 

C405

D402

3KV 471

R416

 

 

 

D111

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R408

 

 

 

2KV 680

4KV

 

MGR1/2W 15MF

R402

 

 

1N4148

 

 

U1-D

 

 

 

 

 

 

 

 

 

 

 

 

47K

 

 

 

 

 

 

 

 

 

 

 

 

 

KA324

 

 

 

 

 

 

 

R414

 

56KF

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MGR1/2W 6MF

 

R412

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R409

 

 

 

 

 

 

 

2K

 

C408

C401

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

430

 

 

 

 

 

 

 

 

 

104

222

R406

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VR401

 

 

 

2.2KF

 

 

C403

 

R410

 

 

 

 

 

 

 

 

 

 

 

 

 

333

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1W 3

 

 

 

 

 

ZD401

 

50K

 

 

 

 

 

 

 

 

 

 

 

 

 

R417

 

 

 

 

 

D403

 

 

 

 

 

 

 

 

1W 130V

 

 

 

 

 

 

 

 

 

 

 

 

 

MGR1/2W 15MF

 

 

 

 

 

1N4148

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18V

 

 

 

 

 

 

 

 

 

24VS

T501

 

D502

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R516

 

 

 

 

 

 

 

 

 

 

 

 

KAB-006

 

4KV

R514

 

 

 

 

 

 

 

 

 

 

 

 

1

7

 

MGR1/2W 15MF

MGR1/2W 50K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C503

R510

 

 

 

 

 

 

 

 

 

 

R503

 

 

R508

104

 

47K

 

 

Q502

 

5

6

 

 

 

 

 

 

 

 

 

 

 

 

C506

 

 

 

 

 

 

 

 

D526-Y

 

 

 

100

 

86.6KF

 

 

 

 

 

 

2

 

 

ZD501

 

 

 

 

 

 

 

 

C505

3KV 471

 

 

 

 

 

 

 

 

 

 

Q501

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1W 100V

 

 

 

 

 

 

 

 

 

 

 

 

 

2KV 680

 

A708-Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R507

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

4

 

 

 

 

R502

 

27K

 

10

 

 

 

 

 

 

 

 

R515

 

 

 

+

 

 

 

 

 

 

 

 

 

 

2.2K

 

 

 

 

 

R511

R512

 

 

 

 

 

R519

 

 

 

 

 

 

 

 

 

 

 

MGR1/2W 15MF

R505

 

 

 

 

 

U1-C

 

 

 

 

 

 

MGR1/2W 50K

R506

 

 

 

 

 

47K

430

 

 

 

 

 

 

100KF

C501

 

 

 

KA324

 

 

 

 

 

 

 

 

 

 

 

100KF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

104

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R517

R504

 

C502

R509

 

D501

 

 

C504

 

R513

 

 

 

 

MGR1/2W 15MF

2K

 

222

 

 

 

 

333

 

1W 3

 

 

 

 

 

VR501

 

 

 

12KF

 

1N4148

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MHV

OPC

SUPPLY

DEV

CN1 GIL-S-9P-S2T2-EF

1

24VS

24VS

U3

KA7818

2

3

4

5

6

7

8

9

A-GND

THV-PWM

THV-EA

 

 

 

 

 

 

THV-READ

 

 

 

MHV-PWM

 

 

 

 

 

 

BIAS-PWM

 

 

C1

5V

 

104

D-GND

 

 

 

INOUT

GND

C2

104

18V

+

C3

35V 47uF

SAMSUNG ELECTRONICS

TITLE

SWALLOW-HVPS

 

 

 

 

 

DESIGNED

CHECKED

APPROVED

DRW. NO

 

REV.

 

 

 

 

 

 

 

 

REF. NO

JC

1.0

JH.CHO

 

 

 

 

 

 

 

 

 

 

SIZE A4

DATE 01/01/04

1 OF 2

 

 

 

 

 

 

 

 

 

Repair Manual

Samsung Electronics

3-15

Page 73
Image 73
Samsung ML-1210, ML-1200 specifications Hvps Circuit Diagram 1/2

ML-1200, ML-1210 specifications

The Samsung ML-1200 is a noteworthy monochrome laser printer designed to deliver impressively sharp and high-quality printouts, making it a popular choice for both home and small office environments. While it boasts a compact design, the ML-1200 does not compromise on performance, offering a variety of features that enhance productivity and ease of use.

One of the most defining characteristics of the ML-1200 is its print speed. Capable of producing up to 12 pages per minute (ppm), it ensures that users can handle their printing tasks quickly and efficiently. The first page out time is a mere 8.5 seconds, allowing users to receive their documents promptly without unnecessary delays.

Resolution is another critical factor in print quality, and the ML-1200 does not disappoint. With a printing resolution of up to 1200 x 1200 dots per inch (dpi), this printer provides crisp text and detailed graphics, making it suitable for various documents ranging from simple text files to more intricate reports and presentations.

Equipped with Samsung's unique ReCP (Rendering Engine for Clean Page) technology, the ML-1200 enhances the clarity of printed text and images. This technology works by improving edge detail and overall print quality, minimizing the chances of blurry or unclear outputs, which is a common issue with lower-tier models.

In terms of connectivity, the Samsung ML-1200 features standard USB 2.0 support, allowing users to connect the printer directly to their computer seamlessly. While it may lack wireless capabilities, this direct connection provides a stable and reliable interface for personal use.

The device offers a standard paper tray capacity of 150 sheets, along with a one-sheet manual feed slot, catering to different media types. The printer supports various paper sizes, including A4, Letter, and Legal, further enhancing its versatility for various printing tasks.

In conclusion, the Samsung ML-1200 is a robust monochrome laser printer that offers a combination of speed, print quality, and usability, making it an ideal choice for individuals and small businesses looking for a reliable printing solution. Its compact size and efficient technologies ensure that it can easily fit into any workspace while delivering outstanding results consistently.