Ml 2571n ошибка

Последний раз редактировалось AlexOuch Ср июл 17, 2013 12:21 pm, всего редактировалось 1 раз.

Andreyak777 » Ср июл 17, 2013 12:09 pm

То, что другие люди говорят обо мне, никак не характеризует меня. Зато отлично характеризует их.

AlexOuch » Ср июл 17, 2013 12:20 pm

AlexOuch » Ср июл 17, 2013 12:31 pm

Andreyak777 » Ср июл 17, 2013 12:31 pm

То, что другие люди говорят обо мне, никак не характеризует меня. Зато отлично характеризует их.

AlexOuch » Ср июл 17, 2013 12:39 pm

AlexOuch » Ср июл 17, 2013 2:05 pm

Александр78 » Ср июл 17, 2013 2:39 pm

AlexOuch » Ср июл 17, 2013 2:54 pm

Александр78 » Ср июл 17, 2013 3:06 pm

04:47

как самому заправить картридж принтера

06:03

Разборка и ремонт лазерного принтера Samsung ML-2510

01:00

Samsung ML-2510 Printer

04:40

How To Fix a Paper Jam

01:26

Samsung ML-2571N Laser Printer

09:02

Samsung ML-2571N Toner Dolumu Nasıl Yapılır

01:01

Samsung ML-2571N review

01:27

How to install Samsung ML 1610 toner cartridge for Samsung ML 2571N printer By 123Ink ca

1. Precautions

The cautions below are items needed to keep in mind when maintaining and servicing.

Please read carefully and keep the contents in mind to prevent accidents while servicing and to prevent the machine from getting damaged.

1.1 Safety Warning

(1) Request service by qualified service person.

Service for this machine must be performed by a Qualified service person. It is dangerous if unqualified service personnel or users try to fix the machine.

(2) Do not rebuild.

Do not attach or change parts discretionary. Do not dissemble, fix of rebuilt it. If so, printer will abnormally work and electric shock or fire may occur.

(3) Laser Safety Statement

The Printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR, chapter 1 Subchapter J for Class 1(1) laser products, and elsewhere, is certified as a Class I laser product conforming to the requirements of IEC 825.

Class I laser products are not considered to be hazardous. The laser system and printer are designed so there is never any human access to laser radiation above a Class I level during normal operation, user maintenance, or prescribed service condition.

Warning >> Never operate or service the printer with the protective cover removed from Laser/Scanner assembly. The reflected beam, although invisible, can damage your eyes. When using this product, these basic safety precautions should always be followed to reduce risk of fire, electric shock, and injury to persons.

1.2 Safety Caution

1.2.1 Noxious Material Precaution

The toner in a printer cartridge contains a chemical material, which may harm human body if it is swallowed. Please keep children out of reach of the toner cartridge.

1.2.2 Electric Shock or fire Precaution

It is possible to get electric shock or burn by fire if you don’t fallow the instructions of the manual.

(1)Use exact voltage. Please use an exact voltage and wall socket. If not, a fire or an electric leakage can be caused.

(2)Use authorized power cord. Do use the power cord supplied with PRINTER. A fire can happen when over current flows in the power cord.

(3)Do not insert many cords in an outlet. A fire can be occurred due to flow over current in an outlet.

(4)Do not put water or extraneous matter in the PRINTER. Please do not put water, other liquid, pin, clip, etc. It can cause a fire, electric shock, or malfunction. If this occurs, turn off the power and remove the power plug from outlet immediately.

(5)Do not touch the power plug with wet hand. When servicing, remove the power plug from outlet. Do not insert or take off it with wet hand. Electric shock can be occurr.

(6)Caution when inserting or taking off the power plug. The power plug has to be inserted completely. If not, a fire can be caused due to poor contact. When taking off the power plug, grip the plug and take it off. If grip the line and pull over, it could be damaged. A fire or electric shock could happen.

(7)Management of power cord. Do not bend, twist, or bind it and place other materials on it. Do not fix with staples. If the power cord gets damaged, a fire or electric shock can happen. A damaged power cord must be replaced immediately. Do not repair the damaged part and reuse it. A repaired part with plastic tape can be cause a fire or electric shock. Do not spread chemicals on the power cord. Do not spread insecticide on the power cord. A fire or electric shock can be happen due to thinner(weak) cover of the power cord.

(8)Check whether the power outlet and the power plug are damaged, pressed, chopped, or blazing fire or not. When such inferiorities are found, repair it immediately. Do not make it pressed or chopped when moving the machine.

(9)Caution when there is thundering or lightning, and being flash of lightening. It causes a fire or electric shock. Take the power plug off there is thunder. Do not touch cable and device when thundering and flash of lightening.

(10)Avoid the place where is moisture or has dust. Do not install the printer where lots of dust or around humidifier. A fire can occurred. A plug part need to clean well with dried fabric to remove dust. If water drops are dripped on the place covered with dust, a fire can occurred.

(11)Avoid direct sunlight. Do not install the printer near window where direct contacts to the sunlight. If the machine contacts sunlight long time, the machine cannot work properly because inner temperature of the machine is getting hotter. A fire can occur.

(12)Turn off the power and take off the plug when smoke, strange smell, or sound from the machine. If you keep using it, a fire can be occurred.

(13)Do not insert steel or metal piece inside/outside of the machine. Do not put steel or metal piece into a ventilator. An electric shock could happened.

1-2 Service Manual

Samsung Electronics

Precautions

1.2.3 Handling Precautions

If you ignore this information, you could harm machine and could be damaged.

(1)Do not install it on different levels, or slanted floor.

Please confirm whether it is balanced or not after installation. If it is unbalanced, an accident can be happened due to the machine falling over.

(2)Be careful not to insert a finger or hair in the rotating unit.

Be careful not to insert a finger of hair in the rotating unit (motor, fan, paper feeding part, etc) while the machine is operating. Once it happens, you could be harmed.

(3)Do not place a pot containing water/chemical or small metals. If they got caught into the inner side of machine, a fire or electric shock can be occurred.

(4)Do not install it where lots of moisture or dust exists or where raindrop reaches. A fire or electric shock can be caused.

(5)Do not place a candlelight, burning cigarette, and etc. on the machine. Do not install it near to heater. A fire can be occurred.

1.2.4 Assembly/Disassembly precaution

When replacing parts, do it very carefully. Memorize the location of each cable before replace parts for reconnecting it afterwards. Memorize. Please perform the steps below before replace or disassembly the parts.

(1)Check the contents stored in the memory. All the information will be erased after replacing main board. The information needed to keep has to be written down.

(2)Before servicing or replacing electric parts, take off plug.

(3)Take off printer cables and power cord connected to printer.

(4)Use formal parts and same standardized goods when replacing parts.Must check the product name, part cord, rated voltage, rated current, operating temperature, etc.

(5)Do not over-force when release or tighten up the plastic parts.

(6)Be careful not to drop small parts such as screws in the printer.

(7)Be careful not to change the location of small parts such as screws when assembling and disassembling.

(8)Remove dust or foreign matters completely to prevent fire of tracking, short, or etc.

(9)After finished repair, check the assembling state whether it is same as before the repair or not.

Precautions

1.3 ESD Precautions

Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly called “Electrostatically Sensitive (ES) Devices”, or ESDs. Examples of typical ESDs are: integrated circuits, some field effect transistors, and semiconductor “chip” components.

The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity.

Caution >>Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

1.Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, employ a commercially available wrist strap device, which should be removed for your personal safety reasons prior to applying power to the unit under test.

2.After removing an electrical assembly equipped with ESDs, place the assembly on a conductive surface, such as aluminum or copper foil, or conductive foam, to prevent electrostatic charge buildup in the vicinity of the assembly.

3.Use only a grounded tip soldering iron to solder or desolder ESDs.

4.Use only an “anti-static” solder removal device. Some solder removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ESDs.

5.Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufficient to damage ESDs.

6.Do not remove a replacement ESD from its protective packaging until immediately before installing it. Most replacement ESDs are packaged with all leads shorted together by conductive foam, aluminum foil, or a comparable conductive material.

7.Immediately before removing the protective shorting material from the leads of a replacement ESD, touch the protective material to the chassis or circuit assembly into which the device will be installed.

8.Maintain continuous electrical contact between the ESD and the assembly into which it will be installed, until completely plugged or soldered into the circuit.

9.Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions, such as the brushing together of clothing fabric and lifting one’s foot from a carpeted floor, can generate static electricity sufficient to damage an ESD.

1-4 Service Manual

Samsung Electronics

2.2 Specifications

Product Specifications are subject to change without notice. See below for product specifications.

2.2.1 General Specifications

Product Specifications

2.2.2 Controller

ML-2510 model : I/O Support(USB 1.1 + IEEE 1284 Parallel port)

ML-2570/2571N model : I/O Support(USB 2.0 + IEEE 1284 Parallel port)

2-2 Service Manual

Samsung Electronics

Product Specifications

2.2.3 Electrical Specification

2.2.4 Environmental Range

2.2.5 Toner Cartridge

Product Specifications

2.2.6 Paper Handling Specifications

Please refer to Paper Secifications on user Guide.

2.2.6.1 Input Paper Size

2.2.6.2 Input capacity

2.2.6.3 Output capacity

2-4 Service Manual

Samsung Electronics

Product Specifications

2.3 Model Comparison Table

Product Specifications

*. These model are as yet undeveloped.

2-6 Service Manual

Samsung Electronics

System Overview

33. System Overview

3.1 System Outline

Paper Path Layout

14

12

13

BIN PATH

12 MAIN PBA

System Overview

Unit Layout

LSU

Panel

HVPS

Motor

SMPS

Main PBA

3-2 Service Manual

Samsung Electronics

System Overview

3.1.1 Feeding

There are the C-path type, which loads papers, and the manual feeder, which supplies paper one by one.The cassette has the function pad which separates paper one by one, and it has the sensor function to check the existence of the loading paper.

1)Feeding Type : MPF Type

2)Feeding Standard : Center Loading

3)Feeding Qty : Cassette 250 sheets (75g/, 20lb paper standard)

4)Manual 1 sheet (Paper, OHP, Envelope etc.)

5)Separating Type : Cassette — Friction Pad Type

6)Manual : None

7)Driver Type : Driving by Gearing from Main Motor

Pick_up Roller Driver : Solenoid

9)Paper detecting Sensor : Photo Sensor

10)Paper Size Sensor : None

11)Paper Exit Type : Face Down

3.1.2 Transfer Ass’y

The transfer roller delivers the toner of the OPC drum to the paper.

— The life span : Print over 50,000 sheets (in 16 ~30)

3.1.3Driver Ass’y

It is a power delivery unit by gearing. By driving the motor, it supplies the power to the feeding unit, the fusing unit, and the distributing unit.(Motor drive IC : A3977)

— It is a power delivery unit by gearing : Feeder/Developer Motor Fuser/Exit

3.1.4FUSER

The fuser is consisted of the Heat Lamp,Heat Roller,Pressure Roller,Thermister and Thermostat. It adheres the toner on the paper with pressure and heat to complete the printing job.

— Life Cycle : 50K(pages)

1) Heat Lamp

. Heat Lamp Terminal Shape : Terminal Single Type

. Voltage 120 V : 115 + /- 5 %

220 V : 230 + /- 5 %

. Capacity : 750 Watt + /- 30 W

. Life : 3000 Hr

2) Thermostat

. Thermostat Type : Non-Contact type THERMOSTAT

. Control Temperature : 150 5

3) Thermistor

. Thermistor Type : FS-50004 (SEMITEC 364Fs Type)

. Temperature Resistance : 7 (180)

. SYSTEM Temperature SETTING

—Stand by : 160 + /- 5

—Printing : 180 + /- 5 (before 30pages) 75 + /- 5 (after 30pages)

—Overshoot : 200 or less

—Overheat : 210 or less

4)Heat roller

. Length : 254 mm

. Valid length : 222 mm

. GND Type : H/R Bearing Grounding type By SECC Fuser frame

5)Pressure roller

. Shaft

—Length : 239.5 mm

. Rubber

—Length : 222 mm

6)Paper separation method

Teflon Coating with mold Claw System

7)Safety Relevant Facts

. Protecting device when overheating

—1st protecting device : H/W cuts off when detecting an overheating

—2st protecting device : S/W cuts off when detecting overheating

—3st protecting device : Thermostat cuts off the power

. Safety device

—The power of Fuser is cut-off after front cover is open.

—The overheating safety device for customer

—The surface temperature of the Fuser Cover is under 80

3-4 Service Manual

Samsung Electronics

System Overview

3.1.5 LSU (Laser Scanner Unit)

The LSU unit is controlled by video controller. It scans the video data received from video controller with laser beam by using the rotation principle of the polygon mirror to create the latent image on the OPC drum. It is the core part of LBP.

The OPC drum rotates as the same speed as the paper feeding speed. It creates the /HSYNC signal and sends it to the engine when the laser beam of the LSU reaches the end of the polygon mirror, and the engine detects the /HSYNC signal to arrange the vertical line of the image on the paper. After detecting the /HSYNC signal, the image data is sent to the LSU to arrange the its margin on the paper. The one side of the polygon mirror is one line for scanning..

OPC Drum

Photo Diode

Polygon Mirror

Polygon Motor

LD(Laser Diode)

Protector panel

3.1.6 Toner Cartridge

By using the electronic photo process, it creates a visual image. In the toner cartridge, the OPC unit and the developer unit are in a body. The OPC unit has OPC drum and charging roller, and the developer unit has toner, toner cartridge, supply roller, developing roller, and blade (Doctor blade)

—Developing Method: Non magnetic 1 element contacting method

—Toner: Non magnetic 1 element shatter type toner

—The life span of toner: 3,000 sheets (ISO 19752 Pattern/A4 standard)

—Toner Cartridge : Initial(1,000), Sales(2,000)

—Toner remaining amount detecting sensor: None

—OPC Cleaning: Collect the toner by using electric static + FILM OPC

—Management of disusable toner: Collect the toner by using electric static (Clenerless TypeNo disusable toner)

—OPC Drum protecting Shutter: None

—Classifying device for toner cartridge: ID is classified by interruption of the frame channel.

3-6 Service Manual

Samsung Electronics

System Overview

3.2 H/W Structure and Descriptions

3.2.1 H/W Overview

ML-2510/2570/2571N is roughly made up Main Control part and SMPS/HVPS part.

Main Controller uses Jupiter4E for ML-2510 and SPGP V3 for ML-2570/2571N, which is on chip micro controller and developed for Low-end Laser Beam Printer.

Jupter4E and SPGP V3 provide provides the integrated printing functions such as Printer video controller, Laser Scan Unit controller, PWM controller and Bi-polar Stepper Motor Controller and has USB and IEEE 1284 Parallel Interface capacity.

SMPS

OPE B’D

(Build-in HVPS)

HVPS

Main Controller

DRAM 8M Byte for 2510

32MByte for 2570/2571N

Printer Engine B’D

Flash Memory for 2510 8MByte for 2570/2571N

3.2.1.1.Main Control

ML-2510/2570/2571N of Main Control are composed of CPU and Print and operate follows function by CPU

—Bus Control, I/o

—Handling, each Driver and PC Interface

Main Control operate its full function on the Main B’d and CPU control Controller ASIC.

3.2.1.2 CPU

ML-2510 Use 32Bit RISC Processor of Jupiter4e, which is built in Memory, while ML-2570/2571N sue SPGP V3, They control system by operating operation block of the system.

— Main Function Block: Completely Integrated System for Embedded Applications,

32 Bit Risc Architecture for ML-2510 and ARM10 CPU for ML-2570/2571N ARM9 CPU

LSU Interface Module for Interfacing PVC with LSU

2 Channel General Purpose DMA Controller for High Speed I/O Dual Memory Bus Architecture

—Operation Frequency : 150MHz for ML-2510/400MHz for ML-2570/2571N

—Operation Voltage : 3.3V

—POWER ON RESET TIME : 6.6ms below

3.2.1.3Flash Memory

Store System Program and can be down load System Program through PC Interface

—Capacity : 8M Byte for ML-2570/2571N, ML-2510 uses 0.5M Byte ASIC built flash memory

—Access Time : 70 nsec

3.2.1.4DRAM

When Printing, use Band Buffer, System Working Memory Area .

—8M capa : 8M Byte basic for ML-2510

8M :Printing System Working Memory Area

—32M capa : 32M Byte basic for ML-2570/2571N 32M :Printing System Working Memory Area

—Access Time : 60 nsec

3.2.1.5ENGINE

This recording method is electrophography method using LSU, which toner is composed of 1 component and non magnetic.

1)Recording Method : LSU(Laser Scanning Unit)

2)Printing Speed :24ppm

(In continuing printing base A4, printing pages from 2nd to last during 1min)

3)Recording Density : 1200 x 600dpi

4)Cassette Capa. : Cassette : 250sheets(75g Base),

Manual : N/A((DRIVE Selection : Paper, OHP, Envelop — 1 sheet)

5)Paper Size : Cassette ,Manual; Width = 76 ~ 216mm, Length = 125mm ~ 356mm

6)Effective recording size

—A4 : 202 x 291 mm

—Letter : 208 x 273 mm

—Legal : 208 x 350 mm

—Folio : 208 x 325 mm

—Top Margin : 4.23 ° 3 mm

—Left, Right Margin : 4.23 ° 3 mm

7)CRU(Toner Cartridge)Life : 3,000pages Printing(A4, 5% Pattern Printing)

First Print Out Time : within 9sec( Standby )

9)Warming up time : within 15sec (Ambient : 25° )

3-8 Service Manual

Samsung Electronics

System Overview

3.2.2 Main Board

Main Board are composed of Engine and Controller on the one-Board.

Main Board control to send Current Imagedml Video Data to LSU to print and have motor Driving and Circuit for the current driving and also include Paper Exit Sensor, Cover Open s/w, panel s/w.

< ML-2510 >

< ML-2570/2571N >

U6(Jupiter 4E for ML-2510 and SPGP V3 for ML-2570/2571N)

—ML-2510 use Jupiter4E which has a CPU core CLK with over 150MHz and a System bus 80MHz.

—It use 3.3V for operation voltage and I/O, It uses 80MHz for system bus CLK, Built in Flash Memory.

—ML-2570/2571N use SPGP V3 which has a CPU core CLK with over 400MHz and a System bus 100MHz.

SDRAM

— Main memory. SDCLK is 75Mhz for ML-2510, SDCLIC is 100Mhz for ML-2570/2571N.

A3977

— It is an Main motor driver IC and controls the motion of main motor.

Regulator

— It Supplies the core voltage to CPU by converting 3.3V to 1.8V for ML-2510

EEPROM(U8 : 93C66 for ML-2510, 24C32 for ML-2570/2571N. — It is an EEPROM with 12C method.

SMPS connector(CN8)

—It connects SMPS, supplies the power, and delivers the high voltage contol signal, etc. If a harness is not normally connected to this connector, power cannot be supplied.

LSU connector(CN12) — It connects a LSU.

DC Motor connector(CN11)

— It connects an main motor and drive a DC motor.

HVPS connector(CN10) — It connects a HVPS.

DCU connector(CN1)

— It interface a DCU-JIG

USB connector(CN6)

— It interface the computer.

Network Connector(ML-2571N only) — It interface the network

IEEE 1284 Parallel Connector

— It interface the computer.

DC To DC Converter

—It supplies the core sltage to CPU

by Converting 3.3V to 1.3V for ML-2570/2571N

3-10 Service Manual

Samsung Electronics

System Overview

3.2.3 Asic(Jupiter 4E) Specification

3.2.3.1 Introduction

Jupiter4E is One-Chip micro-Controller for Low cust Laser beam Printer.

1.One Chip Laser Beam Printer Controller

—GDI only

—AMBA AHB used for high speed bus transactions between masters and slaves

—AMBA APB used for low speed bus transactions between ARM core and peripherals

—3 PLLs ( 2 Dithered PLL and 1 General PLL)

first for CPU(150MHz), AHB(75MHz), APB(75MHz), second for USB(48MHz)

third for PVC(59MHz)

—75MHz system operation

—1.8V power operation

—3.3V tolerant input and bi-directional I/Os

—SDRAM and IO Address / Data signals multiplexing

2.Integrated ARM940T 32-bit RISC embedded processor core

—75MHz core frequency operation

—Harvard Architecture Cache : 4KByte Instruction cache, 4KByte Data cache

—Single memory bus architecture

3.Built in Flash Memory

—4MBits (128Kx32bits)

—Serial programming mode using flash programmer tool

—Internally flash memory read / write operation support

—Programmable access timing control

4.32MB Special function Register Area

5.Directly connected to 3 external IO banks (IOC)

—32 MB size in each IO bank

—Programmable setup, access, hold timing

—Programmable recovery time for slow devices

—Allows to access peripheral devices such as GPIO control logic

6.Directly connected to 1 external ROM bank (ROMC)

—32 MB size for one ROM bank

—One external flash memory attachable.

7.Directly connected to two SDRAM banks (SDRAMC)

—Extensible architecture

—Two external SDRAM attachable.

—SDRAM controller supports PC-100 and PC-133 SDRAM running at 75MHz

—Up to 32MB per bank.

—Support for SDRAM configurations including programmable column address

—Programmable refresh interval

8.Interrupt Controller (INTC)

—FIQ or IRQ mode operation selectable

—Programmable Interrupt Enable/Disable

9.USB interface

—Version 1.1

—Four 128×8 FIFOs for Data transmission.

—Interrupt based input / output interface, no DMA based interface support

—USB wrapper for AHB interface

—AHB Bus interface

10.Serial port interface (UART)

—Programmable Baud Rate

—2 channel Independent Full Duplex UART

—Polling, Interrupt based operation support

—Max 16 byte FIFO to handle SIR Bit Rate Speed

11.Printer video controller for LBP engines (PVC)

—20MHz video rate (Hummingbird 2 : letter — 21 ppm, A4 : 20ppm)

—video data transmitted through LSU Controller

12.Laser Scan Unit (LSU) Controller

—Laser Scan Unit (LSU) Interface for Laser Diode turn on/off timing control

—Sample & hold period generation.

—Auto Power Control for Laser Diode with PID control method using internal 10 bits DAC.

—LSU clock generation

—Brushless DC motor control clock generation

13.ADC Interface

—4 channels ADC interface for analog devices such as temperature sensor.

—Programmable ADC Clock Cycle.

—Automatic or Manual AD Conversion support.

—4 Special Function Registers for monitoring the ADC results for 4 channels.

14.PWM Controller

—4 PWM output ports — THV, BIAS, FAN control and AC ELECTRIFICATION

15.Bi-polar Stepper Motor controller (MOTORC)

—Phase generation for the purpose of paper feeding

—fixed hardware phase and current table

—programmable phase and interval time

—Interrupt based phase change operation

16.Timer

—3 Independent Programmable Timers

—Watch Dog Timer for S/W Trap

17.Miscellaneous

—Mux controlled 24 GPI, 28 GPO & 5 GPIO ports .

—Mutual exclusive GPO/GPIO ports control by the port control enable register

—Programmable Bus Master Priority.

—Project code added.

3-12 Service Manual

Samsung Electronics

3.2.3.3 Asic(SPGPv3)

CPU Core : ARM1020E

— 32KB instruction cache and 32KB data cache

Operating Frequency

—CPU Core : over 300MHz

—System Bus : 100MHz

SDRAMC

—32Bits Only, 100MHz

—5 Banks (Up to 128MB per Bank)

ROMC

— 4 Banks (Up to 16MB per Bank) IOC

— 6 Banks (Up to 16MB per Bank DMAC

— 4 Channels HPVC

—Dual/Single Beam

—LVDS Pad(VDO, HSYNC)

UART

— 5 Channels (1 Channels Supports DMA Operation)

PCI Controller

—32Bits, 33/66MHz

—PCI Local Bus Specification rev2.2 Complaint

—Host / Agent Mode (Support 4 Devices in Host Mode)

NAND Flash Controller

—8/16Bits, H/W EEC Generation

—Auto Boot Mode (Using Internal SRAM, 4KB)

MAC

—10M/100Mbps

—Full IEEE 802.3 Compatibility

Engine Controller

—LSU Interface Unit

—Step Motor : 2 Channels

—PWM : 8 Channels

—ADC : 6 Channels

I2C Controller

— I2C(S-BUS) Slave Device Support(I2C Version 2.1)

RTC

— RTC Core Voltage : 3V

PLL

— 3 PLL : MAIN, PCI, PVC

3.2.3.4 Memory

Flash Memory : It stores System Program and downloads the System Program through PC Interface, and in case of model for export it compresses the PCL font, then stores it.

—Capacity : 8M Byte (Nor Flash)

—Random Access Time : 10 us (Max)

—Serial Page Access Time : 50ns (Min)

DRAM : It is used as Swath Buffer, System Working Memory Area, etc. when printing.

It stores Font List, compressed into Flash memory, on DRAM and uses it as PCL font in case of model for export.

—Capacity : 32M Byte(STD/MAX)

—Type : SDRAM 100MHz/133MHz, 16bit

3-14 Service Manual

Samsung Electronics

System Overview

3.2.3.5 SPGPv3 Internal Block Diagram

3.2.3.6 Flash Memory

It stores the system program and downloads system program through the PC Interface.

Capacity : 8M Byte (NOR Flash)

Random Access Time : 10 us (Max) Serial Page Access Time : 50ns (Min)

3.2.3.7 SDRAM

It is used as swath buffer, system working memory area, etc. while Printing.

Capacity : The 32M Byte is for this model (32M :Printing System Working Memory Area )

3-16 Service Manual

Samsung Electronics

System Overview

3.2.4 Sensor Controller

3.2.4.1Paper Feeding/Width

When a paper passes an actuator of a feed sensor unit after feeding a paper into a set,it detects a signal of the photo interrupter and informs the paper feeding status to CPU. After sensing the signal and certain time later, it strews an image data.(Related in Paper Front Edge Adjustment)

If it could not detect the feed sensor within 1 second after feeding a paper, a paper jam0 (CPU#_) occurs. ML-1610 differs from other general printers because it doesn’t have a paper empty sensor. It recognizes the paper existing status by using a firmware. If a paper is not fed, it recognizes the state as no paper (Red and Yellow lights turn on among other LEDs). With the same principle, it senses the OPC unit. After OPC unit is mounted,the actuator operates. When it passes the actuator of sensor unit, it detects the signal of the photo interrupter, informs the existing OPC unit to CPU, and then stays at the status.

3.2.4.2Paper Empty Sensing

The paper empty is detected by the empty sensor mounted to an engine board and the actuator mounted to a frame. Paper senses the on/off time of the empty sensor by using CPU and informs the normal operation status and the jam occurrence status to CPU.

3.2.4.3Jam Cover/Cover Open Sensing

ML-1610 uses two M/S:one senses the cover open and the other senses the jam cover open.

The cover open sensor is located on the left bottom of HVPS.When the front cover is open, +24V supplied to each unit (DC fan,Solenoid,Main Motor,Polygon Motor Unit of LSU in Fusing Unit,and HVPS)is interrupted.

The jam cover open sensor is located on the left bottom of SMPS. When the jam cover is open, +24V supplied to each unit (DC fan, Solenoid, Main Motor, Polygon Motor Unit of LSU in Fusing Unit, and HVPS) is interrupted.

D0 bit of CPU detects the jam cover open/cover open, and D7 bit of CPU detects the existence of OPC. In this case, it informs the status to user by turning on the red LED among OP panel LEDs.

3.2.4.4Solenoid Driving Circuit

The solenoid consists of two used for paper pick-up and MP signal. D4 bit of CPU turns it on/off, and its driving time is 300ms. The diode protects the drive TR from the pulse (noise)generated by de-energizing operation of solenoid.

System Overview

3.2.5 SMPS board (Switching Module Power Supply)

The SMPS supplies DC Power to the System.

It takes 110V/220V and outputs the +5V, +24V to supply the power to the main board and other board. It is consisted of the AMPS part, which supplies the DC power for driving the system, and the AC heater control part, which supplies the power to fuser. SMPS has two output channels. Which are 5V and +24V

Pin Signal

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1)SMPS Specification

—AC Input

Input Rated Voltage : AC 220V ~ 240V AC 120V / AC 220V(EXP version)

Input Voltage fluctuating range : AC 90V ~ 135V / AC 180V ~ 270V(EXP version)

Rated Frequency : 50/60 Hz

Frequency Fluctuating range : 47 ~ 63 Hz

Input Current : Under 4.0Arms / 2.5Arms

(But, the status when lamp is off or rated voltage is inputted/outputted )

— Rated Output Power

9Protecttion for loading shorage and overflowing current

—Consumption Power

—Power Cord Length : 1830° 50mm

—Power Cord Switch : Use

—Feature

. Insulating Resistance : 100 or more (at DC 500V)

. Insulating revisiting pressure : Must be no problem within 1 min. (at 1000Vac,10mA)

. Leaking Current : under 3.5mA

. Running Current : under 40A PEAK (AT 25, COLD START) under 50A PEAK (In other conditions)

. Rising Time : within 2Sec

. Falling Time : over 20ms

. Surge : Ring Wave 6KV-500A (Normal, Common)

. Preserving Humidity Condition : 10% ~ 90% RH

. Operating atmospheric pressure range : 1atm

—EMI Requirement : CISPR ,FCC, CE, MIC,

—Safty Requrement : IEC950 UL1950, CSA950, C-UL,Semko, EK,CB,

CCC(CCIB),GOST, EPA, Power Save

3.2.6 HVPS board (High Voltage Power Supply)

The HVPS board creates the high voltage of THV/MHV/Supply/Dev and supplies it to the developer part for making best condition to display the image. The HVPS part takes the 24V and outputs the high voltage for THV/MHV/BIAS, and the outputted high voltage is supplied to the toner, OPC cartridge, and transfer roller.

1)Transfer High Voltage (THV+)

—Input Voltage : 24 V DC ° 15%

—Out Voltage : Max. +1.3KV °15% (Cleaning,200 )

—Out Voltage Trigger : 6.5

—Input Voltage Variation : 5 % below(Variation 21.6V°≠ 26.4V) Load Variation : % below

—Out Voltage Rising Time : 100 ms Max

—Out Voltage Falling Time : 100 ms Max

—Transfer Variation Voltage on Environment Variation : +650 V(Duty 10%) ~ 5KV (Duty 90%)

—Control Method on environment : THV-PWM ACTIVE,transfer Active signal, of environment sensing voltage is input and get feed back current, and recalculate it to resistence .

—Control method on transfer output voltage : It is controlled by changing its duty of THVPWM Signal as follows. 10% Duty : +650V, 90% Duty : +5KV 5%

2)Charge Voltage (MHV)

—Input Voltage : 24 V DC 15%

—Out Voltage : -1.3KV ~ 3.2%

—Out Voltage Rising Time : 50 ms Max

—Out Voltage Falling Time : 50 ms Max

—Out Voltage Range : 30 ~ 1000

—Output Control Signal(MHV-PWM) : CPU is HV output when PWM is Low

3)Developing Voltage (DEV)

—IInput Voltage : 24 V DC 15%

—Output Voltage: -350V 4.6%

—Output Voltage Fluctuation range: PWM Control

—Input contrast of the output stability degree : 5 % or less

—Loading contrast : 5 % or less

—Output Voltage Rising Time : 50 ms Max

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— Output Voltage Falling Time : 50 ms Max

— Output Loading range : 10Mߟ ~ 1000

—Output Control Signal (BIAS-PWM) : the CPU output is HV output when PWM is low.

4)Supply

—Output Voltage : -550 V 8.6%(ZENER using, DEV )

—Input contrast of the output stability degree : under 5 %

— Loading contrast : 5 % or less

—Output Voltage Rising Time : 50 ms Max

—Output Voltage Falling Time : 50 ms Max

—Output Loading range : 10 ~ 1000

—Output Control Signal (BIAS-PWM) : the CPU is HV output when PWM is low.

Input

System Overview

3.2.7 FUSER AC POWER CONTROL

Fuser(HEAT LAMP) gets heat from AC power. The AV power controls the switch with the Triac, a semiconductor switch. The ‘ON/OFF control’ is operated when the gate of the Triac is turned on/off by Phototriac (insulting part). In other words, the AC control part is passive circuit, so it turns the heater on/off with taking signal from engine control part.

When the ‘HEATER ON’ signal is turned on at engine, the LED of PC1 (Photo Triac) takes the voltage and flashes. From the flashing light, the Triac part (light receiving part) takes the voltage, and the voltage is supplied to the gate of Triac and flows into the Triac. As a result, the AC current flows in the heat lamp, and heat is occurred.

On the other hand, when the signal is off, the PC1 is off, the voltage is cut off at the gate of Triac, the Triac becomes off, and then the heat lamp is turned off.

1)Triac (THY1) feature :16A, 600V SWITCHING

2)Phototriac Coupler (PC3)

. Turn On If Current : 16mA

. High Repetive Peak Off State Voltage : Min 600V

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3.3 S/W Structure and Descriptions

The purpose of this document is to describe the design specification of the Engine Control F/W for the ML-1610.

3.3.1 Introduction

This Engine Control Firmware is a program that controls LBP Engine of the ML-1610.

This firmware is executed every 10msec as an interrupt routine of the main system. At stand-by state, this firmware monitors the enable print command from the main system. If the enable print command is detected, this firmware controls the Engine Mechanism according to the printing process and paper feeding state. And with the Sleep command or Wake-Up command, this firmware controls the Engine state.

3.3.2 Engine Control F/W Overview

Engine Control F/W is executed every 10msec by timer interrupt of main system. And it consists of 3 control modules.

— Engine Main Control, Interface Control and Sensing & Unit Control Module.

Major operations of the Engine Control F/W are following.

—Control the Pick-Up, Feeding and Discharging of Paper

—Control the LSU

—Control the HVPS for the Developer Process

—Control the Temperature of Fixing unit

Controlling selection to here is added.

— Second Cassette Feeder(SCF) : N/A

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3.3.3F/W Architecture of Engine Control Firmware

—The Engine Control Module is executed every 10msec as interrupt job of main system. There are three control modules, i.e., Engine Main Control Module, Engine Interface Module and Sensing & Unit Control Module.

—Probably from usual state it will be able to rehabilitated a prior to entry error state in error condition it is to confirm. When the if rehabilitation is possible then after rehabilitating it goes back in usual state, else with an error condition it goes in error state. Currently the rehabilitation function of the low heat error , the over heat error and the LSU error is embodied.

—Low Heat Error

When the error occurrs, it does not indicate an error. It stores the present temperature and supplies the heat to the fixing unit during the scheduled time. If the temperature goes up after scheduled time, it goes back to a normal state. However, if not, it is formed that an error occurrs.

—Over Heat Error

When the error occurs, it informs an error first. It stores the present temperature as well and waits a scheduled time. If the temperature goes down after scheduled time, then it goes back to a normal state. However, if not, it is formed that an error occurrs.

—Lsu Error

When the error occurrs, it does not indicate an error. It accomplishes printing only again. If even time when it judges an error, it informs an error. Concretely speaking, if the LReady or Hsync error happens, the paper exits out beforehand. And then the engine mode is changed to recovery mode and the engine informs the main system of the engine mode. And the engine checks the LSU error in itself. If the error doesn’t happen, the printing job will be proceeding.

3.3.4Engine Interface Module Design

Engine Interface Module communicates with the main system in order to receive the command from main system and to transmit the present engine status for the requested status. There are two sub functions. One is a function to receive the command from the main system. The other is a function that informs the main system of the current engine status for the requested item.

3.3.5 Engine Sensing & Unit Control Module Design

Engine Sensing & Unit Control Module consists of 4 sub-functions. The first function is an ADC function that reads the ADC values of the temperature of the fixing unit. The second one is a fixing unit control function. This function regulates the temperature of the fixing unit within a fixed range to be set by the paper type and the number of pages to print out. The third one is a fan control function that controls the fan unit. And the last one sets the flag that describes the present status of each sensor.