(metal plate or input terminal) that can easi- after you use it, separate the ground of the ly contact AC plug blades. measuring instruments lastly. 4. How to check insulation: Pull the AC plug out of the outlet and measure insulation resistance of each blade. Samsung Electronics...
5) Use static electricity protective solder. Solder not parts on PCB. marked Ôstatic electricity protectiveÕ may accu- 11) Overheat during soldering may damage the mulate static electricity that damages ESD parts. parts completely. Heat affects all the parts. Samsung Electronics...
UART Universal Asynchronous Receiver/Transmitter Expended Capasilities port : 8bits Data Carriage Return LINE FEED COLOR IMAGE PROCESSOR Charge Coupled Device ANALOG TO DIGITAL DIGITAL TO ANALOG Line Interface Unit Transformer Input from Transformer Receive Output Transformer Line Input Samsung Electronics...
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PULSE TIME OUT A PULSE TIME N.C. N.C. N.C. OUT B SENSE PULSE TIME OUT A ALARM OUTPUT N.C. PRE-ALARM OUT REFERENCE REFERENCE COMPARATOR INPUT REFERENCE COMPARATOR INPUT COMPARATOR INPUT PHASE PHASE PHASE Note:HEATSINK SURFACE CONNECTED TO PIN B Samsung Electronics...
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11. After finishing the job, check if there are cold sol- d. Remove it with the tip of the iron while heating. dered parts. e. Remove the remaining solder on PCB completely with solder removing wire. It should be done to install a new part. Samsung Electronics...
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Use an iron with small flat tip. b. Apply heat to both ends of the part at the same time. c. Remove the part with the tip of the iron while melting. d. Remove the remaining solder completely with solder removing wire. Samsung Electronics...
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IC. b. Use ÔthinÕ tip to contact legs of IC. c. Put the tip right in front of the legs of IC. d. Twist the iron carefully when solder melts. e. Raise and remove IC. 2-10 Samsung Electronics...
Window 3.1/3.11 and Windows 95 drivers Interface IEEE 1284 Compatible Parallel Interface (ECP) 1-B. Ink Cartridge Supply Mono Ink Color Ink Print Head 208 nozzles 192 nozzles Ink Type Pigment Ink Color Black Color Ink Yield About 600 sheets About 200 sheets Samsung Electronics...
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Extension Phone I/F 1-Jack, Extension Phone Transfer PC Interface IEEE 1284 Parallel Interface (ECP) Fax Send Resolution - Standard : 200 x 100 dpi - Fine : 200 x 200 dpi - Superfine : 300 x 300 dpi Samsung Electronics...
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No paper sensor, Paper jam sensor Error Indicator Yes (On LED) Yes (On PC Screen) Voice Request Others Rx Terminal ID Polling DRPD U.S.A : Yes, Other countries : No Mercury * The marked “No” can be provided by telephone’s feature. Samsung Electronics...
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422(mm) 5 237(mm) 5 180(mm) Weight 3.7kg 5. Accessories Handset Curl Cord Tel Line Power Cord Software 1 CD-ROM (Manual, Printer Driver, PC-Fax) Manual Mono Ink Cartridge Color Ink * Xerox’s OCR S/W and scanner editor are recommended for its own use. Samsung Electronics...
Separate front cover from rear cover in the Push Guide Extension in the direction of the direction of the arrow symbol. arrow symbol. Remove 2 screws between front cover and bot- tom cover. Samsung Electronics...
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Remove various wires fixed on the side of automatic sheet feeder. Unscrew 2 screws on automatic sheet feeder. Push slightly and disconnect the hook (ÒAÓ) fixed to the main frame. Separate automatic sheet feeder by pulling it in the direction of the arrow symbol. Samsung Electronics...
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4-5 Separating Power Circuit Board Fig.4-5. Separating Power Circuit Board Unscrew 2 screws that fix the right and left ground wire. Press the hook (ÒAÓ) on the middle of the housing and separate power circuit board. Samsung Electronics...
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Unscrew 1 screw fixed to the back of the engine and separate home assembly from the engine. Pull out the wiper and the cap in the direction of the arrow symbol to separate them. Fig.4-7. Separating Home Assembly Samsung Electronics...
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Frame Base Assembly Refer to 4-8 to separate carrier Assembly first. Separate 4 roller friction Assembly on the back of the engine and then actuator feed. Separate frame base Assembly by lifting the Fig. 4-9. Separating Frame Base Assembly back. Samsung Electronics...
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Fig.4-10. Separating Feed Roller Assembly the main frame. 4-11 Separating Bracket Line Feed Assembly Bracket Line Feed Refer to 4-10 to separate feed roller Assembly. Unscrew 2 screws and separate bracket line feed Assembly. Fig.4-11. Separating Bracket Line Feed Assembly Samsung Electronics...
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Pull out the clutch and then unscrew 1 left screw to separate the clutch part. Separate the guide finger from shaft pickup. Push shaft pickup to the right to separate. Bend plate-knockup slightly and then separate it from the frame ASF. Samsung Electronics...
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Fig.4-13. Separating LIU board Refer to 4-12 to separate automatic sheet feeder from the engine. Separate the connector. Unscrew 2 screws fixed to LIU board. Separate LIU board from the engine in the direction of the arrow symbol. Samsung Electronics...
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Push up scan Assembly in the direction of the arrow symbol to separate it from the carriage. 4-15. Separating White Reference Sheet White Reference Sheet Frame Base Fig.4-15. Separating White Reference Sheet Remove contaminated white reference sheet completely from the frame base. Ask for new white reference sheet. Samsung Electronics...
CRIB1 /P-PE /P-BUSY /RST-OUT /P-ACK /HEAD-EN PARALLEL /P-SLCT HEAD-DATA INTERFACE /P-INIT (IEEE1284) PRINT HEAD’ /HGA1~/HGA13 /P-SLCTIN DRIVER & HOE1~HOE16 PRINT /P-AUTOFD OK2PRINT CONTROL /P-STB CIRCUIT /FAULT-TEST 245DIR BIASOFF Fig.5-1-1. Entire Structure of Main Circuit for Each Key Signal Samsung Electronics...
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- /MCS : MODEM(U21) CHIP SELECT (LOW ACTIVE) When each CHIP SELECT is low, data can be read or written. ¥ D0 - D15 - 16bit data bus ¥ A0 - A17 - ADDRESS BUS (A18 - A21 are reserved.) Samsung Electronics...
Decoder Fig.5-1-2. UART BLOCK DIAGRAM TXD : START STOP RXD : START STOP START, STOP : 1BIT EACH BAUD RATE : 9600bps CPU I/F : SUPPORTS BOTH INTERRUPT & POLLING DRIVEN PARITY : NO Fig.5-1-3 UART DATA FORMAT Samsung Electronics...
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CHIP SELECT and READ STROBE (/RD) at the external device and bring data from it. It generates address of destination memory, CHIP SELECT and WRITE STROBE (/WR) in order to move this data into destination memory, and then stores the data. MCLK /XDREQ /XDACK D[15:0] Fig.5-1-4 EXTERNAL DMA TIMING DIAGRAM Samsung Electronics...
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/PHGA[13:1], /PHOE[16:1] signals and /HEAD-EN to drive these nozzles. Fig.5-1-8 is timing diagram of each signal. Fire Enable Timer /PHGA Signal (PD) Pre-Heat Pulse Width Fire Pulse Width PHOE Signal Front End Delay Pr-Heat Delay Width Back End Delay Fig.5-1-8 Timing Diagram to Drive Head Samsung Electronics...
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Though full step, half step and soft- ware control are possible for both, bi-polar CR motor is controlled half step and LF motor is controlled half step and quarter step here. Samsung Electronics...
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CIP CLOCK EXT. CHIP IS ACTIVE FIREPS / GOP 10 /RST-OUT EXT. CHIP IS RESET PRINTHEAD BIAS OFF /HSC / GOP 11 BIASOFF PRINTHEAD BIAS ON PRINT MODE IS LQ /HSM / GOP 12 CR-REF PRINT MODE IS DRAFT Samsung Electronics...
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TEST PIN FOR EMULATOR (DATA MODE) TDI / GIOP 2 TEST PIN FOR EMULATOR (DATA FROM EMULATOR) /TRST / GIOP 3 /TRST TEST PIN FOR EMULATOR (RESET TO TAP CON.) TDO / GIOP 4 TEST PIN FOR EMULATOR (DATA TO EMULATOR) 5-10 Samsung Electronics...
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(KS53C6200) wake up and initialize external peripherals to operate the system. Fig.5-1-10 is Power Reset Timing Diagram. supply Voltage /F-POR /POR Reset filter 65 MCLK Internal Reset PnRST 256 MCLK (internal) Reset ROM Access Fig.5-1-10 POWER RESET TIMING DIAGRAM Samsung Electronics 5-11...
5-1-3 SYSTEM MEMORY System memory consists of 512KB flash memory and 2MB DRAM. Flash memory and DRAM are selected by each CHIP SELECT (/ROMCS, /RASO, /RAS1, /LCAS, /UCAS), and data is accessed half word (16bits) by half word. 5-12 Samsung Electronics...
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Converter Controller Processor Module Analog Digitized Processed Data Data Data Data Timing CIP-I Control Data Formatted Data for DMA System Data BUS Formatted Data for DMA Control CIP-I Control Data Data Memory Controller fig.5-1-11 CIP1A Block Diagram Samsung Electronics 5-13...
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BUSY LED OFF GOP 4 SCAN-LED FAX LED ON FAX LED OFF GOP 5 CML-CTL FAX OR TEL LINE CONNECTED EXT. PHONE CONNECTED GOP 6 LAMP-5V CCD MODULE RETURN (+5V) GOP 7 LAMP-12V CCD LAMP ON (+11.75V) 5-14 Samsung Electronics...
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0.75V at Emitter terminal of Tr which is turned on by Level SH signal. These image signals will double by an non-inverting amplifier and finally 1.5V level-shifted image signals will be put in CIP1A. Samsung Electronics 5-15...
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(mono or color). If there is data, printing image is put out at ÒHÓ. If not, it is put out at ÒLÓ. In case of Babbage head, pulse width is always 1.3use regardless of the type of the head, with the maxi- mum driving current 400mA and output voltage +11.75V. 5-16 Samsung Electronics...
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Heating and ambient Temperature Sensor. It checks and controls head driver and ink cartridge. /FAULT-TEST /HGA1 /HGA13 BA13 HOE1 KS32C6200 (U15) HEAD-DATA Cartridge HOE16 BP16 (Mono) CONTROLLER /FAULT-TEST (Color) OK2PRINT /FAULT BIASOFF HEAD-DATA /HEAD-EN PRE-HEAT BH1,BH2 CIP 1A(U17) IMAGE THM-DATA PROCESSOR THM-CLK Fig.5-1-12 Block Diagram of Printer Samsung Electronics 5-17...
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(below 35¡É).(Refer to Timing Chart.) It sends PRE-HEAT signal through I/O port of CIP1A(Color Image Processor:U17) and supplies +11.75V. Mono Head 70°C 35°C Pre-Heat if below 35¡c Fig.5-1-13. Temperature around Mono Head 5-18 Samsung Electronics...
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If data is mono, it is 07H. If color, 08H. (Pwr) (Load) (Clock1) (Clock2) Min 500ns Clock Delay HEAD-DATA bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 Head I.D read : HEAD-DATA Mono : 07H Color : 08H Fig.5-1-15. HEAD DETECTION TIMING DIAGRAM Samsung Electronics 5-19...
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(+11.75V). It is depicted in the following diagram. Fire Enable Timer (PD) Signal Pre-Heat Pulse Width Fire Pulse Width Signal Front End Delay Back End Delay Pre-Heat Delay Width Fig.5-1-16. HEAD DRIVING TIMING DIAGRAM 5-20 Samsung Electronics...
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BA10 BA11 BA12 BA13 BP1- BP16 (Tp) Fig.5-1-17. TIMING DIAGRAM FOR EACH NOZZLE Samsung Electronics 5-21...
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5-1-5-5. INK CARTRIDGE ¥ PIN ARRAY OF MONO INK CARTRIDGE There are 208 heater chips in mono ink cartridge. Address (BA1_ ~ BA13_) Column Data(BPx) 5-22 Samsung Electronics...
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¥ PIN ARRAY OF COLOR INK CARTRIDGE There are 192 heater chips in mono ink cartridge. One cartridge has 64 Cyan, 64 Magenta, 64 Yellow heaters and (64 x 3 colors) 192 nozzles. Address (BA1_ ~ BA13_) Column Data(BPx) Samsung Electronics 5-23...
CRVREF of driver (U25, U26) with +5V divided will go up (+4.5V). It becomes the standard of the driver, resulting in high current. If CR_REF output is ÒhighÓ, TR(Q12) will be turned on and the volt- age put in to CRVREF will go down (+3.0V), resulting in low current in the motor. 5-24 Samsung Electronics...
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- Motor Type: stepper motor, bi-polar - Driving Voltage : +30V - Winding Resistance : 12½ ± 10% - Driving IC : PBL3717A X 2 LFIA1 LFIA0 CURRENT(mA) OPERATION REMARK When feeding document/paper When ejecting document/paper No current Samsung Electronics 5-25...
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In the receiving mode, analog signals coming in through LIU board are amplified at OP AMP(U6-2, R293, C141), and then transmitted to input terminal of modem (RXIN:U21-45) through smoothing filter (U6-6, 7:R273, R274, C126). FAX TRANSMISSION MODEM KS16116 (U21) FAX RECEPTION Fig.5-1-18. FAX TRANSCEIVER 5-26 Samsung Electronics...
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Data is being received from host.(Printing) other operation Data is being uploaded to host. (Scanning) Fax transmitting/reception. (Faxing) Transmitting/receiving error Paper jam, no paper No document, next document, document jam Cartridge is being exchanged. No cartridge Ink low Ready Cartridge FF/Stop Start/Copy Busy Scan/Fax Samsung Electronics 5-27...
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Q2, which interrupts DC current on telephone line and puts out pulse signal on telephone line. ¥ U3-35 CS terminals : It makes Make Resistance by shorting telephone line with Vss during Make period of DP dial. 5-28 Samsung Electronics...
+ polarity against pin Pin.2. So DC loop forms always in the same direction regardless of the polar- ity of the telephone line. 7) T2,T3 : TRANSFORMER - It delivers signals from the telephone line to modem or signals from modem to the telephone line. - Insulation between prinary and secondany circuit part. Samsung Electronics 5-29...
: AC220 - 240V FREE VOLTAGE 2) INPUT VOLTAGE TURNING RANGE : AC 85 - 270V 3) RATED FREQUENCY : 50 - 60 Hz 4) FREQUENCY RANGE : 47 - 63 Hz 5) INPUT CURRENT : 0.5Arms 5-30 Samsung Electronics...
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11.75V of 2nd voltage is detected by voltage detector and feeds back through photo coupler to 1st PWM Control Circuit signals compared by error amplifier. PWM Control Circuit controls the gate of power transistor according to the feedback voltage so as to supply load with stable output voltage. Samsung Electronics 5-31...
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Signals compared by error amplifier are fed back to primary PWM control circuit through photo coupler. PWM control circuit controls the voltage of power transistor gate driver according to the voltage to supply load with stable output voltage. 5-32 Samsung Electronics...
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Photo interrupter is used as a home detecting sensor, attached to the back of the carriage. When the carriage moves left and right, output is ÒhighÓ if the frame rib covers the center of the sensor and ÒlowÓ if it is out of home. Sensor PCB Photo Interrupter Frame HOME_SEN Samsung Electronics 5-33...
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This IC converts the temperature around IC package into digital and sends the temperature data to serial to make it sense the temperature around the head. It senses temperature so that the temperature of the head can be the optimum when you print something. The above IC sends data serially using signal lines(THM_DATA, THM_CLK). 5-34 Samsung Electronics...
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Check the scanner of the main board. Replace the main board. when you scan or Check scanner cable. Replace FPC-SCAN. copy Check the scanner. Replace the scanner. White lines when Check if there is foreign substances on Wipe LABEL(P)-REFERENCE. you scan/copy. LABEL(P)-REFERENCE. Samsung Electronics...
- Open the envelope guide when you guide of automatic sheet feeder. feed envelopes. Tilted Printing - Check if paper guide of the automatic - Adjust paper guide to the size of sheet feeder is adjusted to the size of paper. paper. Samsung Electronics...
5) Check if head cable is inserted well into the main circuit board and then check if nozzles have prob- lems. 6) Check if head cable is broken or torn and then check if nozzles have problems. 7) Replace the main circuit board with a new one and check if nozzles have problems. Samsung Electronics...
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In order to enhance the speed of parallel port and to solve some parallel port connection problems it is strongly recommended that the service man who has encounterde these problems must set the parallel port connection(P1284) mode to a ECP mode in a PC BIOS. Samsung Electronics...
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3. Replace the main PBA. ver.: Check U15-8,9,10,128,154,156, U17-23 control signals and head data. Check the amount of ink. Replace ink cartridge. After replacing it, press Ôink replace- Ink low mentÕ key for over 3sec to inform the system of new ink. Samsung Electronics...
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6. If the output of U3-40(LIU PBA) is U21-45(main PBA). not confirmed, replace LIU PBA. If the output of U3-40(LIU PBA) is con- firmed but the input of U21-45(main PBA) is not confirmed, check the circuit around U6(main PBA). Samsung Electronics...
- Check Ôvirtual memoryÕ of control - Press the 386 expansion icon of control error and the com- panel in the basic program group. panel to change Ôvirtual memoryÕ from puter gets down temporary to permanent. after a diskette is installed. Samsung Electronics...