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Oki 24DX manual Program/Font ROM Location, 172, Case of EP ROM or OTP ROM

Models: 24DX

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7.4Program/Font ROM Location

(1)In case of EP ROM or OTP ROM

FRONTENVELOPE 15	912176	PANEL	IC19	SIMM1FSIMM1SIMM2	1
					1
					2
					1
					2
					1
					2
MOTOR	1 4
FAN	1 2
CLR	1 2
CLH	3
CLH	3 1
END	3 1
END	4 1
LOW	4 1
LOW	1
	1
2NDTRAY	7
2NDTRAY	1

Note: short plug (TA1) setting

setting: 1pin–2pin

TA1

3 pin

1 pin

STKFULL

1 3

71

72

71

72

71

72

IC5

A1

C1

MUPIS

A32	C32	IC7
		IC7
	5	1
	6	2

SIZE

40439501

40439601

40439701

40439801

HEAD2

212

111

HEAD1

131

142

11

19

IC6 IC31

CENT

18

36

1 14

RS232C

13 25

IC8	IC30
1	25
2	POWER 26 1 DUP 12

Note

40930701TH DRAFT Vesion

172 /

Image 153

Oki 24DX manual Program/Font ROM Location, 172, Case of EP ROM or OTP ROM

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 SNS DUP RollerRetracting paper Sending out paper 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 DetectionToner Full state Toner LOW stateT1 2.727/4 727 SEC 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 Cleaning Periodic Replacing Part118 119 Points to Check before Correcting Image Problems Troubleshooting TipsTips for Correcting Image Problems 120Preparation for Troubleshooting Troubleshooting Flow121 122 Category LCD status message Trouble or status RemedyDUPLEX, Simplex 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 panelPrinter does not work normally after being turned on 134YES END Yes Is 135Initializing 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 140 Paper feed jamGo to on the next page a 141142 143 Paper exit jam144 Duplex Input JAMDuplex 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 148 Fuser unit error Error 71, Error 72, Error149 F time-out between printer and optional tray Error F time-out between printer and Duplex Unit Error150 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 fusingWhite 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 163 164 165 Interconnect Signal DiagramTo Printer Unit 166PCB Layout 167Main board BOARD-FFF Power supply board AC120V/230V Power supply board High voltage168 LEX-PCB 169CPU ROM170 Resistance Check171 Program/Font ROM Location 172Case of EP ROM or OTP ROM Case of Mask ROM 173Printer Unit 174175 SMCD6X280BDX10BLDuplex Unit ODA 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-Z58181 Base Unit 2/2BRACKET-AC 182 Duplex Unit 1/2 183GEAR-Z40S6 PULLEY-MXL25Duplex Unit 2/2 184SPRING-SL NK2-12SUS185 Connector pin arrangement186 LOWHigh 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 187Nibble Mode Conforms to Ieee 1284 spec ECP Mode 188INPUT. Prime Busy Select 189 Appendix B RS-232C Serial Interface190 Input OutputInput Functions Appearance and Parts Name191 192 Driving Mechanism193 194 Hopper Mechanism195 Precautions Concerning Parts Replacement196 OKI P/N4PP4076-5395P1 This section describes the layout of the main components 197198 Parts Replacement Methods199 200 201 202 203 204 205 206 207 208 209 Precautions Prior to the Troubleshooting Preparations for the Troubleshooting210 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 226 227 228 229 230 231 232 233 Check FeederCheckfeeder 234 235 Interconnection Diagram236 237 /237