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Oki 24DX manual 40930701TH Draft Vesion

Models: 24DX

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Page 89

3.3.29Guide Assy-Cassette (L)

(1)Turn the AC power switch off. Unplug the AC power cord from the outlet.

(2)Remove Frame Main [See 3.3.12(7)]

(3)Remove PLATE-Base and FRAME Assy Hopping [See 3.3.28 (5)]

(4)Unscrew two screw 1 and then remove Guid Assy-Cassette (L) 2.

(5)Remove SPRING-Sheet 3 and then remove LINK-Sheet 4 and pull block 5. (Pay attention the direction of hook of SPRING-Sheet 3.)

(6)Remove spring 6 and then remove cassette stopper 7.

(7)Remove screw 8 from LINK-Sheet 4 and then remove link support 9 and Roller-link 0.

(8)Remove Earth Plate L A and Plate-Earth (link) B.

AB

5

3

	2
6 7	8

	0
9	4
	4

1

40930701TH DRAFT Vesion

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Image 89

Oki 24DX manual 40930701TH Draft Vesion

Contents

Draft Version LED Page PrinterPreface Contents Lever-Paper end & Lever-Paper near end Connector IMSA-9714N-14A101 105191 Interconnection Diagram 213 PCB Layout 214Functions 191 Appearance and Parts Name 192Parts List OKI HSP System ConfigurationShows the printer unit configuration Printer ConfigurationOptional Configuration 40930701TH Draft Vesion Specification Temperature and humidity Safety Standards Shows an OKIPAGE24DX / OKIPAGE24dx block diagram OKIPAGE24DX / OKIPAGE24dx block diagram Program/font ROMs Main Control Board BOARD-FFFPCL ROM PS ROMMenu EepromLAN ON/X-OFF Rbst X-ONBoard-FSL or Board-FSL-2 4MB 8MB Power Supply Unit OFF Shows the sensor layout diagramLED Head Electro-photographic Process40930701TH Draft Vesion 40930701TH Draft Vesion Paper Eject roller PWM1-P Cluch for hopping PWM2-P Cluch for Registration DMON-N Drum Motor HMON-N Hopping MotorDuplex Unit Printer Stacker Duplex Printing Timing ChartDUPRSNS-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 ~30 Home positionFront 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 Retracting paper Sending out paper SNS DUPRoller LSI Eeprom STRB4-N STRB3-N DataClock LED LED LED LED LED LED LEDData ReadClock Load STRB1-N STRB2-N STRB3-N STRB4-NSTRB4~1 DirectCPU One side wire-bonding headCorrection Total 5200 clocks LED Correction Data Clock Load DATA3~0 STRB1-N STRB2-N STRB3-N STRB4-N Printing operation timing chart is shown belowPaper Jam Detection Cover Open Stirring Gear Toner Low DetectionT1 2.727/4 727 SEC Toner Full stateToner LOW state Size Detection Stacker-full DetectionPaper size SW1 SW2 SW3 SW4Precautions for Parts Replacement Service Tools Place of use Parts Layout Roller Guide Photo sensor Motor Solenoid Assy This section explains how to below How to Change Parts40930701TH 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 118 CleaningPeriodic Replacing Part 119 Points to Check before Correcting Image Problems Troubleshooting TipsTips for Correcting Image Problems 120121 Preparation for TroubleshootingTroubleshooting Flow DUPLEX, Simplex 122Category LCD status message Trouble or status Remedy Received and abandoned until the completion of a job 123124 Manual A4 Size Request 125Load the requested paper in tray 126FFF 127DUP Insns on 128DUP Insns OFF DUP R SNS on ~ DUP F SNS on129 If the error occurs frequently, see chapterCategory 130LCD Ready Trouble or status Remedy MessageTrouble or status Remedy 131Category LCD 132ERROR80 ERROR74133 Time-out between the printer and the operator panelYES END Printer does not work normally after being turned on134 Yes Is 135Initializing Message shown in the LCD display? Replace the Main boardINLETSW1 Power Connector136 137 Replace the Gear ASSY-CLUTCH Z50 JAM error Paper input jam 1st tray138 139 Replace the front feeder paper sensor assemblyPaper input jam front feeder 140 Paper feed jamGo to on the next page a 141142 143 Paper exit jam144 Duplex Input JAM145 Duplex Feed JAM1Duplex Feed JAM Sensor F/R 146Is the Duplex Front sensor lever operating normally? Does the outlet sensor lever operate smoothly Paper size error147 148 Fuser unit error Error 71, Error 72, Error149 150 F time-out between printer and optional tray ErrorF time-out between printer and Duplex Unit Error 151 Message cannot be received through the parallel interface152 Message cannot be received through the serial interfaceData cannot be received through the OKI HSP interface Synchronous serial I/O error Error153 OK?Abnormal images 154Image are light or blurred a whole Replace the Main board or Power Supply Unit High Voltage155 Replace the image drum cartridgeBlack paper is output Dark background density156 Enter keys. Set the LED head drive time. Refer to Section157 Black belts or stripes in the vertical directionEnter keys. Set the LED head drive time Refer to Section158 Cyclic error159 Print voids160 Poor fusingYes Replace the LED head Has the trouble been removed? White belts or streaks in the vertical direction161 162 Snowy print of high density patternBlockly faded print 163 164 165 Interconnect Signal DiagramTo Printer Unit 166Main board BOARD-FFF PCB Layout167 168 Power supply board AC120V/230VPower supply board High voltage LEX-PCB 169CPU ROM170 Resistance Check171 Case of EP ROM or OTP ROM Program/Font ROM Location172 Case of Mask ROM 173Printer Unit 174Duplex Unit ODA 175SMCD6X280BDX10BL Frame-Main 176Frame-Main Unit 1/2 177Frame-Main Unit 2/2 178Roller ASS.-BK PLATE-FG FBase Unit 179Base Unit 1/2 180GEAR-Z38 NK3-16SUS GEAR-Z58BRACKET-AC 181Base Unit 2/2 182 Duplex Unit 1/2 183GEAR-Z40S6 PULLEY-MXL25Duplex Unit 2/2 184SPRING-SL NK2-12SUS185 Connector pin arrangementHigh 186LOW On-line → off-line switching timing by ON-LINE SW Timing charts Compatible mode Data receiving timingOff-line → on-line switching timing by ON-LINE SW 187INPUT. Prime Busy Select Nibble Mode Conforms to Ieee 1284 spec ECP Mode188 189 Appendix B RS-232C Serial InterfaceInput 190Input Output 191 FunctionsAppearance and Parts Name 192 Driving Mechanism193 194 Hopper Mechanism195 Precautions Concerning Parts Replacement4PP4076-5395P1 196OKI P/N This section describes the layout of the main components 197198 Parts Replacement Methods199 200 201 202 203 204 205 206 207 208 209 210 Precautions Prior to the TroubleshootingPreparations for the Troubleshooting 211 Troubleshooting MethodYES 212Tray auto Setting switch Interconnection Diagram 2nd tray/ 3rdTo Printer Unit 2nd Tray To 3rd TrayBBB-PCB 214215 High Capacity Second/ Third Paper Feeder 1/2 216High Capacity Second/ Third Paper Feeder 2/2 217218 External View and Component NamesMain functions are the followings Paper that can be used Approximately 50 sheets of envelopes can be set at a time219 General Mechanism220 221 222 223 224 Check at the time of assembly225 226 227 228 229 230 231 232 Checkfeeder 233Check Feeder 234 235 Interconnection Diagram236 237 /237