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Oki 24DX manual Parts Replacement Methods, 223

Models: 24DX

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3.3Parts Replacement Methods

This section describes the parts replacement methods for the components listed in the disassembly order diagram below.

Multi Feeder

Separator (3.3.1)

AOLE-PCB (3.3.2) Square-shaped connector (3.3.3) Hopping motor (3.3.4)

Planet gear (3.3.5)

Roller B (3.3.6)

Roller A (3.3.7)

Mini pitch belt & Feed roller (3.3.8)

40930701TH DRAFT Vesion

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Oki 24DX manual Parts Replacement Methods, 223

Contents

LED Page Printer Draft VersionPreface Contents Connector IMSA-9714N-14A Lever-Paper end & Lever-Paper near end101 105Interconnection Diagram 213 PCB Layout 214 191Functions 191 Appearance and Parts Name 192Parts List System Configuration OKI HSPPrinter Configuration Shows the printer unit configurationOptional Configuration 40930701TH Draft Vesion Specification Temperature and humidity Safety Standards Shows an OKIPAGE24DX / OKIPAGE24dx block diagram OKIPAGE24DX / OKIPAGE24dx block diagram Main Control Board BOARD-FFF Program/font ROMsPCL ROM PS ROMEeprom MenuON/X-OFF Rbst X-ON LANBoard-FSL or Board-FSL-2 4MB 8MB Power Supply Unit Shows the sensor layout diagram OFFElectro-photographic Process LED Head40930701TH Draft Vesion 40930701TH Draft Vesion Paper Eject roller DMON-N Drum Motor HMON-N Hopping Motor PWM1-P Cluch for hopping PWM2-P Cluch for RegistrationPrinter Stacker Duplex Printing Timing Chart Duplex UnitDUPRSNS-N Rear Sensor inDUPLEX Unit DUPFSNS-N Front Sensor Duplex Unit OFF Paper Tray PrinterHopping Motor Front Feeder Duplex Unit 1st Tray Pressure Roller Regist Roller Start printing. after the paper turns off the Write Sensor Home position ~30Front Hopping Shaft 180 FF Cam Micro SW Front Feeder PlateGear E Clutch Feed Gear D Align Roller Main Motor Power Supply 40930701TH Draft Vesion Image drum Paper Transfer roller Heater Separation Claw Image Drum Cleaning Roller Power Supply Transfer Roller SNS DUP RollerRetracting paper Sending out paper STRB4-N STRB3-N Data LSI EepromClock LED LED LED LED LED LED LEDRead DataClock Load STRB1-N STRB2-N STRB3-N STRB4-NDirect STRB4~1One side wire-bonding head CPUCorrection Total 5200 clocks LED Correction Data Printing operation timing chart is shown below Clock Load DATA3~0 STRB1-N STRB2-N STRB3-N STRB4-NPaper Jam Detection Cover Open Toner Low Detection Stirring GearToner Full state Toner LOW stateT1 2.727/4 727 SEC Stacker-full Detection Size DetectionPaper size SW1 SW2 SW3 SW4Precautions for Parts Replacement Service Tools Place of use Parts Layout Roller Guide Photo sensor Motor Solenoid Assy How to Change Parts This section explains how to below40930701TH Draft Vesion Unlock this part before removing 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion View a 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion 40930701TH Draft Vesion Pull the Duplex Unit out of the unit Printer Groove PLATE-Earth F/R 40930701TH Draft Vesion 40930701TH Draft Vesion From the results of installation View 40930701TH Draft Vesion Cleaning Periodic Replacing Part118 119 Troubleshooting Tips Points to Check before Correcting Image ProblemsTips for Correcting Image Problems 120Preparation for Troubleshooting Troubleshooting Flow121 122 Category LCD status message Trouble or status RemedyDUPLEX, Simplex 123 Received and abandoned until the completion of a job124 125 Manual A4 Size Request126 Load the requested paper in tray127 FFF128 DUP Insns onDUP Insns OFF DUP R SNS on ~ DUP F SNS onIf the error occurs frequently, see chapter 129130 CategoryLCD Ready Trouble or status Remedy Message131 Trouble or status Remedy132 Category LCDERROR74 ERROR80133 Time-out between the printer and the operator panelPrinter does not work normally after being turned on 134YES END 135 Yes IsInitializing Message shown in the LCD display? Replace the Main boardPower Connector 136INLETSW1 137 JAM error Paper input jam 1st tray 138Replace the Gear ASSY-CLUTCH Z50 Replace the front feeder paper sensor assembly Paper input jam front feeder139 Paper feed jam 140141 Go to on the next page a142 Paper exit jam 143Duplex Input JAM 144Duplex Feed JAM1 Duplex Feed JAM145 146 Is the Duplex Front sensor lever operating normally?Sensor F/R Paper size error 147Does the outlet sensor lever operate smoothly Fuser unit error Error 71, Error 72, Error 148149 F time-out between printer and optional tray Error F time-out between printer and Duplex Unit Error150 Message cannot be received through the parallel interface 151Message cannot be received through the serial interface 152Synchronous serial I/O error Error Data cannot be received through the OKI HSP interface153 OK?154 Abnormal imagesReplace the Main board or Power Supply Unit High Voltage Image are light or blurred a whole155 Replace the image drum cartridgeDark background density Black paper is output156 Enter keys. Set the LED head drive time. Refer to SectionBlack belts or stripes in the vertical direction 157Enter keys. Set the LED head drive time Refer to SectionCyclic error 158Print voids 159Poor fusing 160White belts or streaks in the vertical direction 161Yes Replace the LED head Has the trouble been removed? Snowy print of high density pattern Blockly faded print162 163 164 Interconnect Signal Diagram 165166 To Printer UnitPCB Layout 167Main board BOARD-FFF Power supply board AC120V/230V Power supply board High voltage168 169 LEX-PCBCPU ROMResistance Check 170171 Program/Font ROM Location 172Case of EP ROM or OTP ROM 173 Case of Mask ROM174 Printer Unit175 SMCD6X280BDX10BLDuplex Unit ODA 176 Frame-Main177 Frame-Main Unit 1/2178 Frame-Main Unit 2/2Roller ASS.-BK PLATE-FG F179 Base Unit180 Base Unit 1/2GEAR-Z38 NK3-16SUS GEAR-Z58181 Base Unit 2/2BRACKET-AC 182 183 Duplex Unit 1/2GEAR-Z40S6 PULLEY-MXL25184 Duplex Unit 2/2SPRING-SL NK2-12SUSConnector pin arrangement 185186 LOWHigh Timing charts Compatible mode Data receiving timing On-line → off-line switching timing by ON-LINE SWOff-line → on-line switching timing by ON-LINE SW 187Nibble Mode Conforms to Ieee 1284 spec ECP Mode 188INPUT. Prime Busy Select Appendix B RS-232C Serial Interface 189190 Input OutputInput Functions Appearance and Parts Name191 Driving Mechanism 192193 Hopper Mechanism 194Precautions Concerning Parts Replacement 195196 OKI P/N4PP4076-5395P1 197 This section describes the layout of the main componentsParts Replacement Methods 198199 200 201 202 203 204 205 206 207 208 209 Precautions Prior to the Troubleshooting Preparations for the Troubleshooting210 Troubleshooting Method 211212 YESInterconnection Diagram 2nd tray/ 3rd Tray auto Setting switchTo Printer Unit 2nd Tray To 3rd Tray214 BBB-PCB215 216 High Capacity Second/ Third Paper Feeder 1/2217 High Capacity Second/ Third Paper Feeder 2/2External View and Component Names 218Main functions are the followings Paper that can be used Approximately 50 sheets of envelopes can be set at a timeGeneral Mechanism 219220 221 222 223 Check at the time of assembly 224225 226 227 228 229 230 231 232 233 Check FeederCheckfeeder 234 Interconnection Diagram 235236 237 /237