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Oki
24DX
manual
164
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218 pages
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Troubleshooting
Specs
Parts list
Interconnect Signal Diagram
ERROR74
One side wire-bonding head
System Configuration
Connector IMSA-9714N-14A
Check at the time of assembly
Tray auto Setting switch
Page 145
Image 145
Figure
6-6
40930701TH DRAFT Vesion
164 /
Page 144
Page 146
Page 145
Image 145
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Contents
Draft Version
LED Page Printer
Preface
Contents
Lever-Paper end & Lever-Paper near end
Connector IMSA-9714N-14A
101
105
191
Interconnection Diagram 213 PCB Layout 214
Functions 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-FFF
PCL 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 Chart
DUPRSNS-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 position
Front 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 DUP
Retracting paper Sending out paper
LSI Eeprom
STRB4-N STRB3-N Data
Clock
LED LED LED LED LED LED LED
Data
Read
Clock 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 state
T1 2.727/4 727 SEC
Size Detection
Stacker-full Detection
Paper 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
Cleaning
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119
Points to Check before Correcting Image Problems
Troubleshooting Tips
Tips for Correcting Image Problems
120
Troubleshooting Flow
Preparation for Troubleshooting
121
Category LCD status message Trouble or status Remedy
122
DUPLEX, Simplex
Received and abandoned until the completion of a job
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Manual A4 Size Request
125
Load the requested paper in tray
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FFF
127
DUP Insns on
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DUP Insns OFF
DUP R SNS on ~ DUP F SNS on
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If the error occurs frequently, see chapter
Category
130
LCD Ready
Trouble or status Remedy Message
Trouble or status Remedy
131
Category LCD
132
ERROR80
ERROR74
133
Time-out between the printer and the operator panel
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Printer does not work normally after being turned on
YES END
Yes Is
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Initializing
Message shown in the LCD display? Replace the Main board
136
Power Connector
INLETSW1
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JAM error Paper input jam 1st tray
Replace the Gear ASSY-CLUTCH Z50
Paper input jam front feeder
Replace the front feeder paper sensor assembly
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Paper feed jam
Go to on the next page a
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Paper exit jam
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Duplex Input JAM
Duplex Feed JAM
Duplex Feed JAM1
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Is the Duplex Front sensor lever operating normally?
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Sensor F/R
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Paper size error
Does the outlet sensor lever operate smoothly
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Fuser unit error Error 71, Error 72, Error
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F time-out between printer and Duplex Unit Error
F time-out between printer and optional tray Error
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Message cannot be received through the parallel interface
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Message cannot be received through the serial interface
Data cannot be received through the OKI HSP interface
Synchronous serial I/O error Error
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OK?
Abnormal images
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Image are light or blurred a whole
Replace the Main board or Power Supply Unit High Voltage
155
Replace the image drum cartridge
Black paper is output
Dark background density
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Enter keys. Set the LED head drive time. Refer to Section
157
Black belts or stripes in the vertical direction
Enter keys. Set the LED head drive time
Refer to Section
158
Cyclic error
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Print voids
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Poor fusing
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White belts or streaks in the vertical direction
Yes Replace the LED head Has the trouble been removed?
Blockly faded print
Snowy print of high density pattern
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Interconnect Signal Diagram
To Printer Unit
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PCB Layout
Main board BOARD-FFF
Power supply board High voltage
Power supply board AC120V/230V
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LEX-PCB
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CPU
ROM
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Resistance Check
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Program/Font ROM Location
Case of EP ROM or OTP ROM
Case of Mask ROM
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Printer Unit
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SMCD6X280BDX10BL
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Duplex Unit ODA
Frame-Main
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Frame-Main Unit 1/2
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Frame-Main Unit 2/2
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Roller ASS.-BK
PLATE-FG F
Base Unit
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Base Unit 1/2
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GEAR-Z38 NK3-16SUS
GEAR-Z58
Base Unit 2/2
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BRACKET-AC
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Duplex Unit 1/2
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GEAR-Z40S6
PULLEY-MXL25
Duplex Unit 2/2
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SPRING-SL
NK2-12SUS
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Connector pin arrangement
LOW
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High
On-line → off-line switching timing by ON-LINE SW
Timing charts Compatible mode Data receiving timing
Off-line → on-line switching timing by ON-LINE SW
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Nibble Mode Conforms to Ieee 1284 spec ECP Mode
INPUT. Prime Busy Select
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Appendix B RS-232C Serial Interface
Input Output
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Input
Appearance and Parts Name
Functions
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Driving Mechanism
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Hopper Mechanism
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Precautions Concerning Parts Replacement
OKI P/N
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4PP4076-5395P1
This section describes the layout of the main components
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Parts Replacement Methods
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Preparations for the Troubleshooting
Precautions Prior to the Troubleshooting
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Troubleshooting Method
YES
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Tray auto Setting switch
Interconnection Diagram 2nd tray/ 3rd
To Printer Unit 2nd Tray
To 3rd Tray
BBB-PCB
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High Capacity Second/ Third Paper Feeder 1/2
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High Capacity Second/ Third Paper Feeder 2/2
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External View and Component Names
Main functions are the followings Paper that can be used
Approximately 50 sheets of envelopes can be set at a time
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General Mechanism
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Check at the time of assembly
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Check Feeder
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Checkfeeder
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Interconnection Diagram
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