1. Digital Printing R & D 1 group Feb 2008 Education of CLP-310/310N

2. Agenda I.Outline II.Composition & Function III.Trouble shooting

3. Ⅰ.OutlineObjectives 1.Understanding the basic structures and function of Hardware 2.Checking & building ability to Trouble Shooting

4. System Configuration Ⅱ. Composition & Function.ModelCLP-310CLP-310N 비고 ProcessorChorus 3(SoC) DDR 2.32MB Flash ROM2MB4MB EEPROM8KB(24C64) 4K : N/W, 4K : System Compatibility:.GDI(SPL-color) Interfaces:.USB2.0, LAN Embedded N/W With MII User.InterfacesOnly LED panel

5. Block Diagram of CLP-310N Ⅱ. Composition & Function

6. Connection Diagram of CLP-310N Ⅱ. Composition & Function

7. H/W configuration Ⅱ. Composition & Function Sungho SMPS Main Board HVPS

8. H/W configuration Ⅱ. Composition & Function SEM SMPS Main Board HVPS

9. Main General description  Main PBA employs Chorus3 as an ASIC, which is developed for LBP Printer Ⅱ. Composition & Function 13 15 24 3 30 2 D 1079 14 16 1 20 A B 4 8 C E 512 1722 21 18

10. Main General description Ⅱ. Composition & Function NO.NAME 1Deve home CON.(3P) 2ITB CLT(3P) 3Deve CLT(2P) 4Debug(4P) 5T2 CLT(2P) 7Fuser(2P) 8Regi CLT.(2P) 9Fuser CLT.(2P) 10BLDC Motor(10P) 12ITB Tension(3P) 13HVPS(26P) 14Wired N/W Con. (14P) 15OPE & ITB (15P) 16USB Con. (6P) 17Key PTL(10P) 18Cover OPEN (2P) 19Pickup CLT (2P) NO.NAME 20Pickup CLT. (3P) 21SMPS (16P) 22CRUM Con. (5P) 24LSU Con.(16P) 30Empty. (3P) NO.NAME ACPU(Chorus3) BDDR2 (32MB) CNOR FLASH(2MB or 4MB) DEEPROM EPHY Chip

11. Main B’D configuration Ⅱ. Composition & Function DDR2 SDRAM FLASH ROM USB Chip Phy Chip DATA(15:0) ADDR (22:1) DQ (15:0) DDR_SA (12:0) MII EEPROM I2C BUS Switching Regulator 3.3V 1.0V Electrical Part (HVPS & Sensors) Mechanical Part (Motor & Actuator) Engine Control I/O & PWM Port Switching Regulator

12. Ⅱ. Composition & Function 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 - I 2 C : NVRAM & CRUM Interface - Analog I/O Port (ADC : Sensor Interface, DAC : LD Power Control)

13. Ⅱ. Composition & Function 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)

14. Ⅱ. Composition & Function Memory Interface ROM : - 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

15. Ⅱ. Composition & Function I/O Interface High 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

16. Power Flow SMPS - Type II stage 3 (standard type) - +24V : For use Mechanical Part (Motor & Actuator (Solenoid, Clutch)) - +5V : Logic, Analog, Sensor, Ⅱ. Composition & Function 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

17. Ⅱ. Composition & Function CRUM Interface SDA SCL NVRAM 24C64 MAIN BD Crum Joint BD TONER CRUM nCRUM TONER CRUM nCRUM TONER CRUM nCRUM TONER CRUM nCRUM TONER CART

18. Ⅱ. Composition & Function OP panel General description OP panel - 4 LED (red) / 2 dual LED (red/green) - 1 button -+5V Switch operation - GPIO control

19. Ⅱ. Composition & Function SMPS : INPUT : AC 110V or 220V OUTPUT : 24V, 5V O Fuse AC Fuse AC Fuse 24V Fuse 24V Fuse 5V Fuse 5V

20. Ⅱ. Composition & Function SMPS : INPUT : AC 110V or 220V OUTPUT : 24V, 5V O Fuse AC Fuse AC Fuse 24V Fuse 24V Fuse 5V Fuse 5V

21. Ⅱ. Composition & Function HVPS T2 +1550V±3% -1300V±20% T1 +1000V±3% CHARGER -1000V±3% K C M Y BIAS AC +180V±3% BIAS DC -595V±3%

22. 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

23. 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 Ⅲ. Troubleshooting

24. 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 Ⅲ. Troubleshooting

25. 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 Ⅲ. Troubleshooting

26. 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 Ⅲ. Troubleshooting

27. 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 Ⅲ. Troubleshooting

28. 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 Ⅲ. Troubleshooting

29. 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 Ⅲ. Troubleshooting