Samsung ML-1651N, ML-1650 specifications Video ControllerBlock Diagram

Page 65

6. Block Diagram

6-1 Video ControllerBlock Diagram

32

DAT A(0:31)

ROM

 

 

 

 

ADD R(2:22)

 

 

 

 

 

 

 

 

 

 

 

100PIN

DIM M

 

21

 

 

 

ADD R(0:31)

 

DATA(0:31)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29LV 160

 

A20

 

 

 

 

 

 

 

 

 

 

16Mbit Flash Memory

 

 

 

 

 

 

 

 

 

 

 

 

 

29LV 160

 

 

 

 

 

 

 

 

32

 

Regulator

 

16Mbit Flash Memory

 

 

 

 

 

 

 

 

 

 

2.7V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mask Font ROM

 

RD_FLASH*

 

 

 

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K3P5V 1000D-GC, High

 

WR_FLASH1,2,3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mask Font ROM

 

 

 

 

 

32

 

 

 

CPU

 

 

K3P5V 1000D-GC,Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TS*, TT1, nTSB T,TSIZ(0:2)

POWER PC

 

 

 

 

 

 

 

nTA, RST*, I NT*, nTS,nBG

 

 

PPC603ei

 

 

4

 

 

 

 

 

 

SYSCLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

166M Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

74F32

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

RCS(0:3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

FS781

 

 

 

 

 

 

 

74F04

 

 

 

 

 

 

 

 

System clock

 

 

nWR

 

 

 

 

 

Frequency

 

 

 

 

 

F_WR_E

 

 

 

 

 

Scaling EMI

 

11.1M Hz(OSC)

 

 

 

 

 

 

 

 

Attenuator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPGPi

 

nFSYNC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCLK*

V ideo-Clock

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDRA M

Memory Data Bus

 

 

 

 

61.23307M Hz

 

 

 

 

32

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DRAMD(0:31)

 

 

 

 

 

 

A DDR(2:18)

6

 

 

100PIN

DIMM

Memory Address Bus

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

DRAMA(0:11)

11

 

 

 

 

DATA (16:31)

Pin

OPTION

64M bit SDRAM

 

 

nWAI T

 

 

 

 

N

SDRAM _CAS,SDRAM_RAS,

 

 

 

 

 

K4S641632C

 

nWR

 

 

 

 

et

 

 

BA0*,BA1* ,SDRAM_W E* ,

 

 

 

 

 

 

 

 

nRD

 

 

nWA IT

wo

Network

64M bit SD RAM

SDRAM _CS( 0:1) ,SDQM (0:3) ,

 

 

 

SD_CLK (1:2) ,CL KE

 

 

I NT*

 

 

 

nRD

rk

 

Card

K4S641632C

 

 

 

 

 

 

 

 

 

nW R

C

 

 

 

14

 

 

3

93C66

 

 

TT1

on

 

 

 

 

 

 

 

 

 

 

B RDIN*

n

 

 

 

 

 

EIRQ(0:3)*

4

 

 

4Mbit

 

 

I OCS1

ec

 

 

 

 

 

nI OCS(0:5)*

6

 

 

Serial

 

 

I OCS2

tor

 

 

 

 

 

 

 

EEPROM

 

EI RQ2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C7733

RESET*

 

 

 

 

 

 

 

 

 

 

 

 

Supply

Voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Supervi sor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To

 

 

 

ACK *, BUSY,

 

 

THV_PWM *,MHV _PWM*,

 

 

 

 

HVPS

 

 

 

SELECT, ERROR,

 

 

DEV_PWM,THVEN*,

 

 

 

 

&

 

74ACT245

FAULT*

 

 

 

LDON*,PMOTOR*,

 

LREADY*, LSYNC*

LSU

Centronics

PD(0:7)

 

 

 

LSUCLK,nVIDEO*

 

 

 

 

 

 

Transceiver

 

 

 

 

 

 

 

 

 

 

 

 

Connector

 

 

SELI N*

 

 

 

 

 

 

 

DATA (0:7)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STROBE*

 

 

3

 

 

 

I OCS0

 

 

 

 

 

A UTOFD*

 

 

 

 

 

 

8

 

 

 

 

INI *

 

 

 

 

 

 

 

 

 

 

 

 

 

 

38

 

 

 

 

 

 

 

 

 

 

 

 

 

Engi ne I/F

Connector

 

PANEL 8Pin

 

5

74HCT273

 

 

 

 

 

 

 

 

D Fli p-Flop

 

Computer

Engine Controller B'd

OP Panel

6-1

Image 65
Contents Laser Printer Version no This manual is stated and provided for service description Read each caution carefully Safety PrecautionsReleasing Plastic Latches Precautions on Disassembly and ReassemblyElectronic Scale Tools for TroubleshootingController ML-1650 ML-1651N EnginePaper TonerNetwork ML-1650 ML-1651N EnvironmentWhenever servicing the machine, you must perform as follows General Precautions on DisassemblyReleasing Plastic Latches Transfer Roller Controller Board Pickup Assembly Main Cover MP Multi-Purpose Tray Exit AssemblyHvps board LSUSolenoid 10 FanDrive Assembly To remove the thermistor from the fuser assembly Fuser AssemblyTo remove the thermostat from the fuser assembly To remove the halogen lamp from the fuser assemblyGuide Feed & Erase Lamp To replace the pickup roller MPF Assembly and Miscellaneous on MPF AssemblyTo replace the nockup plate To replace the Paper Empty PE sensor To replace the pickup holder and the Adjust End MPEngine Board and Miscellaneous To replace the exit board To remove the transfer guide To replace the actuator feedCause and solution of Bad image How to use DCUCause and solution of the bad discharge Cause and solution of the malfunctionCode How to use DCUDCU Setup Self Diagnostic Mode Paper Path Layout Self Test ButtonDCU Panel ML-1650 Diagnostic Control Unit Quick ReferanceCheck and Cause Solution Cause and solution of Bad imageVertical Black Line and Band Vertical White LineBlack/White Spot Horizontal Black BandDark Image or a Black Light ImageBackground Uneven DensityGhost Satins on the Face Blank Page Print out Satins on Back2 JAM Cause and solution of the bad dischargeWrong Print Position 4 JAM 3 JAMPaper rolled in the fuser Multi-Feeding7 OPC All LEDs blinking Scan Error Cause and solution of the malfunctionAll LEDs blinking Fuser Error Paper Empty without indication Not function of the gear of the fuser due to melting awayPaper Empty Cover Open No lamp on when the cover is openDefective motor operation No PowerVertical Line Getting Curved Toner Cartridge Service Signs and Measures at Poor toner cartridge Fault Signs Cause & Check Solution Light imagePartially blank ImageRecycled product Fault Signs Cause & Check Solution White Black spotFault Signs Cause & Check Solution Ghost & Image Printer is not working Cause and solutions of bad environment of the softwareUtilities program Abnormal Printing How to delete the data in the spool manager Spool ErrorExploded Views and Parts List Service Parts List Exploded Views and Parts List10-3 10-4 Cover Exploded View All Exploded Views and Parts ListFrame Exploded View Exit Exploded View Rack-MPF Exploded View Fuser Exploded View Drive Exploded View Pick-Up Exploded View Cassette Exploded View Video ControllerBlock Diagram Block DiagramSensor Engine Block DiagramVPS Connection Diagram
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ML-1650, ML-1651N specifications

The Samsung ML-1651N and ML-1650 are reliable monochrome laser printers designed for small to medium-sized businesses and home offices. These printers offer a blend of performance, efficiency, and affordability, making them suitable for various printing needs.

One of the standout features of both models is their print speed. The ML-1651N boasts a speed of up to 22 pages per minute, while the ML-1650 offers a slightly lower speed but still impressive for standard office tasks. This fast output is complemented by a first page print time of approximately 8.5 seconds, ensuring that users can quickly produce documents without unnecessary delays.

In terms of print quality, both printers deliver sharp, clear black text and detailed graphics, thanks to a print resolution of up to 1200 x 1200 dpi. This high resolution is essential for producing professional-looking documents, which is crucial in a business environment.

The Samsung ML-1651N and ML-1650 are equipped with a 250-sheet input tray, accommodating various paper sizes and types. Additionally, both printers support manual duplex printing, allowing users to save paper by printing on both sides of the page. The ML-1651N also features a built-in network interface, providing easy connectivity for multiple users on a local network. This is particularly beneficial for businesses where collaboration and document sharing are essential.

Another noteworthy characteristic is their energy efficiency. Both models comply with Energy Star standards, reducing electricity consumption and helping organizations lower their operational costs. The Eco Mode feature further enhances sustainability by optimizing power usage during printing tasks.

The compact size of the ML-1651N and ML-1650 makes them suitable for smaller workspaces where printer footprint is a consideration. Despite their size, they have a robust build quality, ensuring longevity and reliability in daily use.

Lastly, both models are compatible with various operating systems, including Windows and Mac, ensuring versatility in different computing environments. With their blend of speed, efficiency, and quality, the Samsung ML-1651N and ML-1650 remain solid contenders in the monochrome laser printer market. They are ideal choices for users seeking reliable, cost-effective solutions for their printing requirements.