ON/X-OFF Rbst X-ON, Lan | Oki 24DX specs

(a)Centronics bidirectional parallel interface

This is an interface conforming to IEEE-1284 and provides either of unidirectional and bidirectional communications according to each of the following communication modes.

•Compatibility mode

Unidirectional communications from the host to the printer.

•Nibble mode

This mode transmits 4-bit wide data from the printer to the host. In this mode, each 1-byte data is transferred in the form of two nibbles using ERROR, BUSY, FAULT, and SELECT signal leads. This mode can provide the bidirectional operation in combination with the compatibility mode.

•ECP mode

This mode provides the asynchronous bidirectional interface and transmits and receives 1-byte data using eight data signal leads under the semi-duplex control by the host.

When the power is turned on, the compatibility mode is automatically selected. The change to another mode from the compatibility mode is made through negotiation. (When the BI DIRECTION is set to ENABLE in the menu, this change can be performed.) (For the electrical/physical characteristics of this interface, see APPENDIX B)

(b)RS232C serial interface

The following protocol is supported for the serial interface conforming to EIA RS232C.

•READY/BUSY (DTR HI or DTR LO)

•X-ON/X-OFF

•RBST X-ON

(For the electrical/ physical characteristics of the interface, see APPENDIX B)

(c)OKI HSP interface (Option)

This interface (slot) is an OKI unique universal interface that provides the platform to connect various of boards (including those supplied by third venders) such as the LAN connection expansion board and SCSI expansion board.

Any expansion boards compatible with this interface can be mounted on the Control board in the piggyback board from without modifying the program at the printer side. The conceptual diagram of the OKI HSP interface is shown in Figure 2-2.

(For the electrical/physical characteristics of the OKI HSP interface, see the OKI HSP interface technical manual.)

Printer
	Network, etc.
Control board	LAN
	expansion board
	OKI HSP
	interface
	Figure 2-2

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Oki 24DX manual ON/X-OFF Rbst X-ON, Lan

Contents

LED Page Printer Draft Version Preface Contents 101 Connector IMSA-9714N-14ALever-Paper end & Lever-Paper near end 105 Functions 191 Appearance and Parts Name Interconnection Diagram 213 PCB Layout 214191 192 Parts List System Configuration OKI HSP Printer Configuration Shows the printer unit configuration Optional Configuration 40930701TH Draft Vesion Specification Temperature and humidity Safety Standards Shows an OKIPAGE24DX / OKIPAGE24dx block diagram OKIPAGE24DX / OKIPAGE24dx block diagram PCL ROM Main Control Board BOARD-FFFProgram/font ROMs PS ROM Eeprom Menu ON/X-OFF Rbst X-ON LAN Board-FSL or Board-FSL-2 4MB 8MB Power Supply Unit Shows the sensor layout diagram OFF Electro-photographic Process LED Head 40930701TH 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 Registration DUPRSNS-N Rear Sensor inDUPLEX Unit DUPFSNS-N Front Sensor Printer Stacker Duplex Printing Timing ChartDuplex Unit 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 Front Hopping Shaft Home position~30 180 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 SNS DUP RollerRetracting paper Sending out paper Clock STRB4-N STRB3-N DataLSI Eeprom LED LED LED LED LED LED LED Clock Load ReadData STRB1-N STRB2-N STRB3-N STRB4-N Direct STRB4~1 One side wire-bonding head CPU Correction Total 5200 clocks LED Correction Data Printing operation timing chart is shown below Clock Load DATA3~0 STRB1-N STRB2-N STRB3-N STRB4-N Paper Jam Detection Cover Open Toner Low Detection Stirring Gear Toner Full state Toner LOW stateT1 2.727/4 727 SEC Paper size Stacker-full DetectionSize Detection SW1 SW2 SW3 SW4 Precautions 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 below 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 Cleaning Periodic Replacing Part118 119 Tips for Correcting Image Problems Troubleshooting TipsPoints to Check before Correcting Image Problems 120 Preparation for Troubleshooting Troubleshooting Flow121 122 Category LCD status message Trouble or status RemedyDUPLEX, Simplex 123 Received and abandoned until the completion of a job 124 125 Manual A4 Size Request 126 Load the requested paper in tray 127 FFF DUP Insns OFF 128DUP Insns on DUP R SNS on ~ DUP F SNS on If the error occurs frequently, see chapter 129 LCD Ready 130Category Trouble or status Remedy Message 131 Trouble or status Remedy 132 Category LCD 133 ERROR74ERROR80 Time-out between the printer and the operator panel Printer does not work normally after being turned on 134YES END Initializing 135Yes Is Message shown in the LCD display? Replace the Main board Power 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 140 141 Go to on the next page a 142 Paper exit jam 143 Duplex Input JAM 144 Duplex 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 148 149 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 151 Message cannot be received through the serial interface 152 153 Synchronous serial I/O error ErrorData cannot be received through the OKI HSP interface OK? 154 Abnormal images 155 Replace the Main board or Power Supply Unit High VoltageImage are light or blurred a whole Replace the image drum cartridge 156 Dark background densityBlack paper is output Enter keys. Set the LED head drive time. Refer to Section Enter keys. Set the LED head drive time Black belts or stripes in the vertical direction157 Refer to Section Cyclic error 158 Print voids 159 Poor fusing 160 White 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 165 166 To Printer Unit PCB Layout 167Main board BOARD-FFF Power supply board AC120V/230V Power supply board High voltage168 CPU 169LEX-PCB ROM Resistance Check 170 171 Program/Font ROM Location 172Case of EP ROM or OTP ROM 173 Case of Mask ROM 174 Printer Unit 175 SMCD6X280BDX10BLDuplex Unit ODA 176 Frame-Main 177 Frame-Main Unit 1/2 Roller ASS.-BK 178Frame-Main Unit 2/2 PLATE-FG F 179 Base Unit GEAR-Z38 NK3-16SUS 180Base Unit 1/2 GEAR-Z58 181 Base Unit 2/2BRACKET-AC 182 GEAR-Z40S6 183Duplex Unit 1/2 PULLEY-MXL25 SPRING-SL 184Duplex Unit 2/2 NK2-12SUS Connector pin arrangement 185 186 LOWHigh Off-line → on-line switching timing by ON-LINE SW Timing charts Compatible mode Data receiving timingOn-line → off-line switching timing by ON-LINE SW 187 Nibble Mode Conforms to Ieee 1284 spec ECP Mode 188INPUT. Prime Busy Select Appendix B RS-232C Serial Interface 189 190 Input OutputInput Functions Appearance and Parts Name191 Driving Mechanism 192 193 Hopper Mechanism 194 Precautions Concerning Parts Replacement 195 196 OKI P/N4PP4076-5395P1 197 This section describes the layout of the main components Parts Replacement Methods 198 199 200 201 202 203 204 205 206 207 208 209 Precautions Prior to the Troubleshooting Preparations for the Troubleshooting210 Troubleshooting Method 211 212 YES To Printer Unit 2nd Tray Interconnection Diagram 2nd tray/ 3rdTray auto Setting switch To 3rd Tray 214 BBB-PCB 215 216 High Capacity Second/ Third Paper Feeder 1/2 217 High Capacity Second/ Third Paper Feeder 2/2 Main functions are the followings Paper that can be used External View and Component Names218 Approximately 50 sheets of envelopes can be set at a time General Mechanism 219 220 221 222 223 Check at the time of assembly 224 225 226 227 228 229 230 231 232 233 Check FeederCheckfeeder 234 Interconnection Diagram 235 236 237 /237