digital printing r & d 1 group feb 2008 education of clp-310/310n

Digital Printing R & D 1 group

Feb 2008

Education of CLP-310/310N

AgendaAgenda

I. Outline

II. Composition & Function

III. Trouble shooting

Ⅰ.Outline

ObjectivesObjectives

1. Understanding the basic structures

and function of Hardware

2. Checking & building ability to

Trouble Shooting

System Configuration

Ⅱ. Composition & Function

.Model CLP-310 CLP-310N 비고

Processor Chorus 3(SoC) Chorus 3(SoC)

DDR 2. 32MB 32MB

Flash ROM 2MB 4MB

EEPROM 8KB(24C64) 8KB(24C64) 4K : N/W, 4K : System

Compatibility:. GDI(SPL-color) GDI(SPL-color)

Interfaces:. USB2.0, LAN USB2.0, LAN Embedded N/W With MII

User.Interfaces Only LED panel Only LED panel

Block Diagram of CLP-310N


Connection Diagram of CLP-310N


H/W configuration


Sungho SMPS

Main Board

HVPS

H/W configuration


SEM SMPS

Main Board

HVPS

Main General description

Main PBA employs Chorus3 as an ASIC, which is developed for LBP Printer


13 1524

3

30

2D

10 7 9

14

16

1

20

AB

48

C

E

512

172221

18

Main General description


NO. NAME

1 Deve home CON.(3P)

2 ITB CLT(3P)

3 Deve CLT(2P)

4 Debug(4P)

5 T2 CLT(2P)

7 Fuser(2P)

8 Regi CLT.(2P)

9 Fuser CLT.(2P)

10 BLDC Motor(10P)

12 ITB Tension(3P)

13 HVPS(26P)

14 Wired N/W Con. (14P)

15 OPE & ITB (15P)

16 USB Con. (6P)

17 Key PTL(10P)

18 Cover OPEN (2P)

19 Pickup CLT (2P)

NO. NAME

20 Pickup CLT. (3P)

21 SMPS (16P)

22 CRUM Con. (5P)

24 LSU Con.(16P)

30 Empty. (3P)

NO. NAME

A CPU(Chorus3)

B DDR2 (32MB)

C NOR FLASH(2MB or 4MB)

D EEPROM

E PHY Chip

Main B’D configuration


DDR2 SDRAM

FLASHROM

USBChip

PhyChip

DATA(15:0)

ADDR (22:1)

DQ (15:0)

DDR_SA (12:0)

MII

EEPROMI2C BUS

SwitchingRegulator

3.3V

1.0V

Electrical Part(HVPS & Sensors)

Mechanical Part(Motor & Actuator)

Engine Control

I/O & PWM Port

SwitchingRegulator


Main B’D

CPU : Chorus 3 (SoC)

Memory :

- RAM : Default 32MB

- ROM : 2MB(CLP-310), 4MB(CLP-310N)

- NVRAM : 8KB (4K : N/W Parameter (MAC Address))

Peripherals :

- USB 2.0

- 10/100 Based N/W (MII Interface Phy Chip Used)

I/O :

- Digital I/O Port : Basic I/O, PWM : Motor & HVPS Control

- UART : Debug Only

- I2C : NVRAM & CRUM Interface

- Analog I/O Port (ADC : Sensor Interface, DAC : LD Power Control)


Chorus 3 Architecture

CPU Core : ARM926EJS, 360Mhz (I-Cache : 16KB, D-Cache : 16KB)

DDR SDRAM Controller : DDR1/2, 16-bit width, 166MHz

ROM Controller : 2 channel NOR flash controller, 2 Banks ( 1 Bank Used)

I/O Controller : 4-channels external I/O device, 2-channel DMA I/O

DMA Controller : 3 Channel

HPVC : 4 Channel Dual / Single Beam

UART : 4 Channels (Debug 1 Channel used only)

Interrupt : 4 dedicated external, 64 Internal

TIMER : 6 System Timer (S/W use Only)


Memory InterfaceROM :

- Nor Flash used (16MB)

- Interface With Chorus 3 ROM Controller

SDRAM :

- Size : CLP-310/310N(DDR2) : Default 32MB

- interface with Chorus 3 RANM Controller

EEPROM :

- Size : 8KB

- Interface With Chorus 3 I2C Controller

CRUM :

- Size : 256Byte

- Interface With Chorus 3 I2C Controller via Joint Crum B’D


I/O InterfaceHigh Speed USB 2.0 (High speed 480Mbps / Full speed 12Mbps)

N/W Embedded

- Chorus M With MII Interface

- Active LED(Yellow) / Link LED(Green)

PWM

- High Voltage Control With Duty

- Main Motor Clock

I2C Interface

- NVRAM (system information + network information)

- CRUM

Power Flow

SMPS

- Type II stage 3 (standard type)

- +24V : For use Mechanical Part (Motor & Actuator (Solenoid, Clutch))

- +5V : Logic, Analog, Sensor,


Main B’D

- Supply From SMPS +5V

- Power Supply with two Regulator (3.3V & 1.0V : Switching Regulator)

- 3.3V : I/O Operating (Digital & Analog)

- 1.0V : Chorus 3 Core Voltage

HVPS

- Supply From SMPS +24V

- High Voltage Source for EP Condition is Controlled By PWM Pulse

& I/O Signal


CRUM Interface

SDA

SCL

NVRAM24C64

MAIN BD

Crum Joint BD

TONER CRUMnCRUM

TONER CRUMnCRUM

TONER CRUMnCRUM

TONER CRUMnCRUM

TONER CART


OP panel General description

OP panel

- 4 LED (red) / 2 dual LED (red/green)

- 1 button

-+5V Switch operation

- GPIO control


SMPS : INPUT : AC 110V or 220V OUTPUT : 24V, 5V

O

Fuse ACFuse AC

Fuse 24VFuse 24V

Fuse 5VFuse 5V


HVPS

T2 +1550V±3% -1300V±20%

T1 +1000V±3%

CHARGER -1000V±3%

K

C

M

Y

BIAS AC +180V±3%BIAS DC -595V±3%

Ⅲ. Troubleshooting

Error Vertical Line and Band

[Description ]1. Straight thin black vertical line occurs in the printing.

2. Dark black vertical band occur in the printing.

[Wrong Part]1. LSU

2. Developer Unit

[Check and Cause]

1. Damaged develop roller in the Developer.

2. Deformed Doctor-blade

[Solution]

1. If causes 1 and 2 occur in the developer unit, replace the

developer and try to print out.

[Etc]

Trouble & Solution

Error Dark Image or black

[Description ] The printed image is dark.

[Wrong Part] 1. HVPS

[Check and Cause]

1. No charge voltage in the HVPS board.

2. There isn’t High Voltage Contact Spring between HVPS and OPC Unit.

3. No PWM signal for EP Condition Supplies from Main Board

[Solution]

1. Replace the HVPS.

2. If High Voltage Contact Spring isn’t, Replace the Spring.

3. Replace the Main Board.

Trouble & Solution


Error JAM 0, JAM 1

[Description ]1. Paper is not exited from the cassette.

2. Jam-0 occurs if the paper feeds into the printer.

[Wrong Part]

1. Sensor

2. Solenoid

3. Pick-up roller

4. Main B’D

[Check and Cause]

1. Check the Solenoid & feed-sensor by using EDC mode.

3. Check the surface of the roller-pickup for foreign matter.

[Solution]

1. Replace the solenoid and/or feed-sensor.

2. Replace the roller-pick up

3. Replace the Main B’D

Trouble & Solution


Error Paper Empty

[Description ]The Error status LED on the operator panel is on even when paper is loaded in the cassette.

[Wrong Part]1. Actuator

2. Sensor

[Check and Cause]

1. Bending or deformation of the actuator of the paper sensor.

2. The function of the Main board is defective Perform

[Solution]

1. Replace the defective actuator.

2. Replace the Main board.

Trouble & Solution


Error Defective motor operation

[Description ]Main motor is not driving when printing, and Displaying “Motor Error” On SM Message.

[Wrong Part]1. Main PBA

2. Motor Harness

[Check and Cause]

1. Motor harness or sub PCB may be defective.

2. Check the Operating Signal and Clock from Main Board.

3. Check the +24V switch.

[Solution]

1. Check the motor harness, replace it, if defective.

2. Check 24V in the SMPS, replace it, if defective.

3. Check the Cover Switch, replace it, if defective.

3. Replace the Main PBA, if necessary.

Trouble & Solution


Error No Power

[Description ]When system power is turned on, all lamps on the operator panel do not come on and motor is not driving.

[Wrong Part]1. SMPS

2. OP Panel & Main Board.

[Check and Cause]

1. Check if the power input and SMPS output are normal.

2. Check the interfaces of LED-Panel on the front-cover if the LED of

Panel does not appear after normal warming up.

[Solution]

1. Replace the SMPS.

2. Replace the control board.

3. Replace the LED-panel.

Trouble & Solution


Error Vertical Line Getting Curved

[Description ] When printing, vertical line gets curved.

[Wrong Part]1. LSU

2. Main PBA

[Check and Cause]

1. LSU P_Motor is unstable.

2. Contact of the GND of Roller-Exit is unstable.

3. If the supply of +24v is unstable in the Main Control board linking

with LSU

[Solution]

1. Replace LSU.

2. Replace the Main Control board.

3. Replace the GND of Roller-Exit

Trouble & Solution


Error LSU Error

[Description ] The printing is stop in the fad status, With LSU Error SM Message

[Wrong Part]

1. LSU

2. Main Controller

3. Flat Cable Harness

[Check and Cause]

1. LSU P_Motor or Hsync Signal is defective.

2. Main Controller LSU Part defect.

3. Check the connection between Main Board and LSU.

[Solution]

1. Check the Flat Cable Harness, Replace it if necessary.

2. Replace LSU.

3. Replace Main Board.

Trouble & Solution


digital printing r & d 1 group feb 2008 education of clp-310/310n

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