188, Nibble Mode Conforms to Ieee 1284 spec ECP Mode | Oki 24DX

d) INPUT PRIME timing (when set to the effective INPUT PRIME signal)

50 ∝s min.

INPUT. PRIME

BUSY

SELECT

5∝s max.

ACKNOWLEDGE	10	∝s max.

0.5 ∝s to 10 ms

0 min.

■Nibble Mode

Conforms to IEEE 1284 spec.

■ECP Mode

Conforms to IEEE 1284 spec.

40930701TH DRAFT Vesion

188 /

Image 169

Oki 24DX manual 188, Nibble Mode Conforms to Ieee 1284 spec ECP Mode, INPUT. Prime Busy Select

Contents

Draft Version LED Page Printer Preface Contents Lever-Paper end & Lever-Paper near end Connector IMSA-9714N-14A101 105 191 Interconnection Diagram 213 PCB Layout 214Functions 191 Appearance and Parts Name 192 Parts List OKI HSP System Configuration Shows the printer unit configuration Printer Configuration Optional 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 ROM Menu Eeprom LAN ON/X-OFF Rbst X-ON Board-FSL or Board-FSL-2 4MB 8MB Power Supply Unit OFF Shows the sensor layout diagram LED Head Electro-photographic Process 40930701TH 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 Motor Duplex Unit Printer Stacker Duplex Printing Timing ChartDUPRSNS-N Rear Sensor inDUPLEX Unit DUPFSNS-N Front Sensor Duplex Unit OFF Paper Tray Printer Hopping 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 Plate Gear 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 Roller SNS DUPRetracting paper Sending out paper LSI Eeprom STRB4-N STRB3-N DataClock LED LED LED LED LED LED LED Data ReadClock Load STRB1-N STRB2-N STRB3-N STRB4-N STRB4~1 Direct CPU One side wire-bonding head Correction Total 5200 clocks LED Correction Data Clock Load DATA3~0 STRB1-N STRB2-N STRB3-N STRB4-N Printing operation timing chart is shown below Paper Jam Detection Cover Open Stirring Gear Toner Low Detection Toner LOW state Toner Full stateT1 2.727/4 727 SEC Size Detection Stacker-full DetectionPaper size SW1 SW2 SW3 SW4 Precautions 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 Parts 40930701TH 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 Periodic Replacing Part Cleaning118 119 Points to Check before Correcting Image Problems Troubleshooting TipsTips for Correcting Image Problems 120 Troubleshooting Flow Preparation for Troubleshooting121 Category LCD status message Trouble or status Remedy 122DUPLEX, Simplex Received and abandoned until the completion of a job 123 124 Manual A4 Size Request 125 Load the requested paper in tray 126 FFF 127 DUP Insns on 128DUP Insns OFF DUP R SNS on ~ DUP F SNS on 129 If the error occurs frequently, see chapter Category 130LCD Ready Trouble or status Remedy Message Trouble or status Remedy 131 Category LCD 132 ERROR80 ERROR74133 Time-out between the printer and the operator panel 134 Printer does not work normally after being turned onYES END Yes Is 135Initializing Message shown in the LCD display? Replace the Main board 136 Power ConnectorINLETSW1 137 138 JAM error Paper input jam 1st trayReplace the Gear ASSY-CLUTCH Z50 Paper input jam front feeder Replace the front feeder paper sensor assembly139 140 Paper feed jam Go to on the next page a 141 142 143 Paper exit jam 144 Duplex Input JAM Duplex Feed JAM Duplex Feed JAM1145 Is the Duplex Front sensor lever operating normally? 146Sensor F/R 147 Paper size errorDoes the outlet sensor lever operate smoothly 148 Fuser unit error Error 71, Error 72, Error 149 F time-out between printer and Duplex Unit Error F time-out between printer and optional tray Error150 151 Message cannot be received through the parallel interface 152 Message cannot be received through the serial interface Data cannot be received through the OKI HSP interface Synchronous serial I/O error Error153 OK? Abnormal images 154 Image are light or blurred a whole Replace the Main board or Power Supply Unit High Voltage155 Replace the image drum cartridge Black paper is output Dark background density156 Enter keys. Set the LED head drive time. Refer to Section 157 Black belts or stripes in the vertical directionEnter keys. Set the LED head drive time Refer to Section 158 Cyclic error 159 Print voids 160 Poor fusing 161 White belts or streaks in the vertical directionYes Replace the LED head Has the trouble been removed? Blockly faded print Snowy print of high density pattern162 163 164 165 Interconnect Signal Diagram To Printer Unit 166 167 PCB LayoutMain board BOARD-FFF Power supply board High voltage Power supply board AC120V/230V168 LEX-PCB 169CPU ROM 170 Resistance Check 171 172 Program/Font ROM LocationCase of EP ROM or OTP ROM Case of Mask ROM 173 Printer Unit 174 SMCD6X280BDX10BL 175Duplex Unit ODA Frame-Main 176 Frame-Main Unit 1/2 177 Frame-Main Unit 2/2 178Roller ASS.-BK PLATE-FG F Base Unit 179 Base Unit 1/2 180GEAR-Z38 NK3-16SUS GEAR-Z58 Base Unit 2/2 181BRACKET-AC 182 Duplex Unit 1/2 183GEAR-Z40S6 PULLEY-MXL25 Duplex Unit 2/2 184SPRING-SL NK2-12SUS 185 Connector pin arrangement LOW 186High 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 187 188 Nibble Mode Conforms to Ieee 1284 spec ECP ModeINPUT. Prime Busy Select 189 Appendix B RS-232C Serial Interface Input Output 190Input Appearance and Parts Name Functions191 192 Driving Mechanism 193 194 Hopper Mechanism 195 Precautions Concerning Parts Replacement OKI P/N 1964PP4076-5395P1 This section describes the layout of the main components 197 198 Parts Replacement Methods 199 200 201 202 203 204 205 206 207 208 209 Preparations for the Troubleshooting Precautions Prior to the Troubleshooting210 211 Troubleshooting Method YES 212 Tray auto Setting switch Interconnection Diagram 2nd tray/ 3rdTo Printer Unit 2nd Tray To 3rd Tray BBB-PCB 214 215 High Capacity Second/ Third Paper Feeder 1/2 216 High Capacity Second/ Third Paper Feeder 2/2 217 218 External View and Component NamesMain functions are the followings Paper that can be used Approximately 50 sheets of envelopes can be set at a time 219 General Mechanism 220 221 222 223 224 Check at the time of assembly 225 226 227 228 229 230 231 232 Check Feeder 233Checkfeeder 234 235 Interconnection Diagram 236 237 /237