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4. ADJUSTMENT ......................76 4.1 Maintenance Modes and Functions ..............76 4.1.1 User Maintenance Mode ..................76 4.1.2 System Maintenance Mode ..................76 4.1.3 Engine Maintenance Mode ..................77 4.1.4 EEPROM initialization .................... 78 4.2 Adjustment When Replacing a Part ..............79 4.2.1 Setting of LED Head Drive Time ................
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Parts Replacement Methods .................. 163 3.3.1 Link ......................164 3.3.2 Separator ....................165 3.3.3 OLEV-11-PCB ..................166 3.3.4 Pulse Motor .................... 167 3.3.5 Planet Gear .................... 168 3.3.6 Roller-A and B ..................169 TROUBLESHOOTING ..................170 Precautions Prior to the Troubleshooting ............... 170 Preparations for the Troubleshooting ..............
CONFIGURATION System Configuration OKIPAGE 10ex consists of control and engine blocks in the standard configuration, as shown in Figure 1-1. In addition, the options marked with asterisk(*) are available. 40718401TH Rev.5...
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Operator Panel Engine Unit Paper Cassette Face Up Stacker *High Capacity Second Paper Paper Feeding Mechanism Feeder (First Tray Unit) Face *Multi Purpose Down Feeder Stacker Electrophotographic Processing Unit Power Supply and Sensor Board Centronics Main Control Board * : Optional Memory* Expansion Board 1 DRAM SIMM Socket...
Printer Configuration The printer unit consists of the following hardware components: • Electrophotographic Processor • Paper Feeder • Controller • Operator Panel • Power Supply Unit The printer unit configuration is shown in Figure 1-2. Upper cover Operator panel assy Toner-cartridge(Type 5) (consumable) Stacker assy...
Optional Configuration The options shown below are available for use with OKIPAGE 10ex. These are available separately from the printer unit. (1) High Capacity Second Paper Feeder (2) Multi Purpose Feeder (3) 1MB Memory Expausion Board 40718401TH Rev.5...
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(4) RS-232C Serial Interface Board (5) DRAM SIMM Memory DRAM SIMM memory is available with memory of 1MB (min.) to 32MB (max.). The access time of SIMM memories are 60ns, 70ns, 80ns, and 100ns. (6) Flash SIMM Flash SIMM is available with memory of 4MB and 8MB. 40718401TH Rev.5...
Safety Standards 1.5.1 Certification Label The safety certification label is affixed to the printer in the position described below. INT AC : 230V model ODA AC : 120V model ODA AC : 230V model 1.5.2 Warning Label The warning labels are affixed to the sections which may cause bodily injury. Follow the instructions on warning labels during maintenance.
1.5.3 Warning/Caution Marking The following warning and caution markings are made on the power supply/sensor board. WARNING AVERTISSEMENT ADVERTENCIA CAUTION HEATSINK AND TRANSFORMER ATTENTION ATENCÃO PRESENT RISK OF ELECTRIC SHOCK CUIDADO CUIDÃDO TEST BEFORE TOUCHING * No fuse is mounted here for 200V series ENGLISH Heatsink and transformer core present risk of electric shock.
OPERATION DESCRIPTION OKIPAGE 10ex consists of a main control board, a power supply/sensor board, an operator panel, an electrophotographic process mechanism, and revision for illumination of LED head. The main control board receives data via the host I/F, it then decodes, edits and stores the data in memory.
Main Control Board The main control board consists of a single chip CPU, two program/font ROMs, four DRAMs, an EEPROM, a host interface circuit, and a mechanism driving circuit. (1) Single chip CPU The single chip CPU is a custom CPU (32-bit internal bus, 32-bit external bus, 28.24-MHz clock, with input frequency from a 7.06-MHz clock) which incorporates the RISC CPU and its peripheral devices, and has the following functions: Built-in device...
Power Supply/Sensor Board The power supply/sensor board consists of an AC filter circuit, a low voltage power supply circuit, a high voltage power supply circuit, heater drive circuit, and photosensors. (1) Low Voltage Power Supply Circuit This circuit generates the following voltages. Output voltage +5 V Logic circuit supply voltage...
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The sensor layout diagram is shown in Figure 2-2. Exit roller Outlet sensor Heat roller Transfer roller Paper sensor Toner Inlet sensor sensor 2 Registration roller Paper end sensor Hopping roller Inlet sensor 1 Figure 2-2 Sensor Function Sensing state Inlet sensor 1 Detects the leading part of the paper and gives the monitor timing ON: Paper exists.
Electrophotographic Process 2.3.1 Electrophotographic Process Mechanism This mechanism actuates the printing of image data supplied by the main control board on the paper by electrophotographic process. The layout of the electrophotographic process mechanism is shown in Figure 2-3. 19 / 40718401TH Rev.5...
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(1) Image Drum Unit The image drum unit consists of a sensitive drum, a charger, and a developer. The unit forms a toner image on the sensitive drum, using a electrostatic latent image formed by the LED head. (2) Registration Motor The registration motor is a pulse motor of 48 steps/rotation with two-phase excitement by the signal from the main control board.
2.3.2 Electrophotographic Process The electrophotographic processing is outlined below. The electrophotographic printing process is shown in Figure 2-4. 1 Charging The surface of the image drum is charged uniformly with a negative charge by applying the negative voltage to the charge roller. 2 Exposure Light emitted from the LED head irradiates the negatively charged surface of the image drum.
2.3.3 Process Operation Descriptions (1) Hopping and Feeding Hopping and feeding motions are actuated by a single registration motor in the mechanism as shown below: Registration motor Idle gear Registration roller Hopping roller Motor gear Registration gear Hopping gear The registration motor turning in direction "a" drives the hopping roller. The registration motor turning in direction "b"...
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Hopping 1 For hopping, the registration motor turns in direction "a" (clockwise direction) and drives the hopping roller to advance the paper until the inlet sensor turns on (in this case, the registration gear also turns, but the registration roller is prevented from turning by the one- way bearing).
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(2) Charging Charging is actuated by the application of the DC voltage to the charge roller that is in contact with the image drum surface. Power Charge roller supply Image drum The charge roller is composed of two layers, a conductive layer and a surface protective layer, both having elasticity to secure good contact with the image drum.
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(3) Exposure Light emitted by the LED head irradiates the image drum surface with a negative charge. The surface potential of the irradiated portion of the image drum drops, forming an electrostatic latent image associated with the image signal. LED head LED head Charge roller Power...
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The image roller surface is charged to about –750 V by the contact charge of the charge roller. When the light from the LED head irradiates the image drum surface, the light energy generates positive and negative carriers in the CGL. The positive carriers are moved to the CTL by an electrical field acting on the image drum.
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(4) Developing Toner is attracted to the electrostatic latent image on the image drum surface, converting it into a visible toner image. Developing takes place through the contact between the image drum and the developing roller. 1 As the toner supply roller rotates while rubbing on the developing roller, a friction charge is generated between the developing roller and the toner, allowing the toner to be attracted to the developing roller (the developing roller surface is charged positive and the toner, negative).
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Note: The bias voltage required during the developing process is supplied to the toner supply roller and the developing roller, as shown below. –500 VDC is supplied to the toner supply roller, –265 VDC to the developing roller. Connected and bias supplied when the cover is closed.
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(5) Transfer The transfer roller is composed of conductive sponge material, and is designed to get the image drum surface and the paper in a close contact. Paper is placed over the image drum surface, and the positive charge, opposite in polarity to that of the toner, is applied to the paper from the reverse side.
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(6) Fusing When the transfer is completed, the toner image is fused to the paper by heat and pressure as the paper with unfused toner image passes between the heater roller and the back-up roller. The heater roller with Teflon coating incorporates a 400W heater (Halogen lamp), which generates heat. A thermistor which is in contact with the heater roller regulates the temperature of the heater roller to a designated temperature in the menu, depending on the thickness of the paper (tray 1&2: light=165°C, medium light=170°C, medium=175°C, medium heavy and heavy=195°C/manual...
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(7) Cleaning When the transfer is completed, the residual toner left on the image drum is attracted to the cleaning roller temporarily by static electricity, and the image drum surface is cleaned. Image drum Cleaning roller Power supply Transfer roller (8) Cleaning of rollers The charge, transfer and cleaning rollers are cleaned for the following cases: •...
2.3.4 Revision of LED Head Illumination An LED correcting head, which is capable of correcting the illumination of the LED for each dot, is being used in this printer. LED illumination correction function of 16 steps is carried out by using an EEPROM which is installed in the LSI that maintains the LED illumination correction values, and an LED correction drivers (MSM6731BWAF or MSM6732BWAF) together as a pair.
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The printing operation timing chart is shown below. Normal Mode Printing Timing Chart CLOCKI LOADI DATAI3~0 STRB1I-N STRB2I-N STRB3I-N STRB4I-N First line printing data sent Second line printing data sent First line printing The printing operation is carried out in normal mode. Under ordinary circumstances such as when the power is turned on or when LOADI signal level is low, the normal mode is enabled.
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The mode setting timing chart during illumination correction is shown below. Illumination Correction Mode Setting Timing Chart 50ns 50ns 100ns min 200ns min 100ns min CLOCKI LOADI DATAI0 D4 D3 D2 D1 D0 STRB1I-N STRB2I-N STRB3I-N STRB4I-N Mode setting Mode enabled Mode set The mode setting is carried out in the following manner.
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The LED driver (MSM6731BWAF) corrects the LED illumination by controlling the LED current. The LED illumination can be set in 16 steps, with 7 steps in the direction of illumination increase in relation to the standard value, and 8 steps in the direction of decrease. For this reason, the LED correction data is a 4-bit data for each dot.
Paper Jam Detection The paper jam detection function monitors the paper condition when the power is turned on and during printing. When any of the following conditions arises, this function interrupts the printing process. If any of the following errors is encountered, printing can be recovered by removing the jammed paper (by opening the upper cover, removing the jammed paper and closing the upper cover).
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Paper Feed Check List Error Type of error Monitor Standard value Plus Minus Paper feed error Hopping start In sensor on 72.0 36.0 – Paper feed jam In sensor on Write sensor on 20.0 22.0 – Paper feed jam Write sensor on Out sensor on 140.5 25.0...
Cover Open When the stacker cover is opened, the cover open microswitch on the power supply/sensor board is turned off to cut +5V supply to the high voltage power supply circuit. This results in the interruption of all high-voltage outputs. At the same time, the CVOPN signal is sent to the main control board to notify that the microswitch is off, and the main control board carries out the cover open process.
Toner Low Detection • Device The Toner Low Detection device consists of a stirring gear which rotates at a constant rate, a stirring bar and a magnet on the stirring bar. The stirring bar rotation is driven by the link to the gouged portion in the stirring gear.
TONER FULL state 160 ms < t1 < 0.8 sec TNRSNS-N 2.63 sec. TONER LOW state t1 > 0.8 sec. TNRSNS-N 2.63 sec. • When the Toner Low state is detected 2 times consecutively, Toner Low is established. • When the Toner Full state is detected 2 times consecutively, Toner Low is cancelled. •...
PARTS REPLACEMENT The section explains the procedures for replacement of parts, assemblies, and units in the field. Only the disassembly procedures are explained here. For reassembly, reverse the disassembly procedure. Precautions for Parts Replacement (1) Before starting to replace parts, remove the AC cord and interface cable. Remove the AC cord in the following sequence: Turn off (“o”) the power switch of the printer Disconnect the AC inlet plug of the AC cord from the AC receptacle.
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[Service Tools] The tools required for field replacement of printed circuit boards, assemblies and units are listed in Table 3-1. Table 3-1 Service Tools Service Tools Q' ty Application Remarks No. 1-100 Philips screwdriver 2~2.5 mm screws No. 2-100 Philips screwdriver 3~5 mm screws No.
Parts Layout This section explains the layout of main components of the equipment. [Lower base unit] Pulse motor Stacker cover assy (main/drum) Eject roller assy View A Back-up roller Pulse motor Transfer roller (registration) Diselectrification bar Registration roller Spacer bearing R Fusing unit Spacer bearing L Lower base unit...
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[Base unit] Operator panel assy Power supply/ sensor board Transformer Face up stacker assy DC fan assy Main control board Cassette guide (R) Cassette guide(L) Paper cassette Figure 3-3 48 / 40718401TH Rev.5...
How to Change Parts This section explains how to change parts and assemblies listed in the disassembly diagram below. In the parts replacement procedure, those parts marked with the part number inside with white letters are RSPL parts. Printer unit Upper cover assy Operator panel assy Face up stacker assy...
3.3.1 Upper Cover Assy (1) With the power switch turned off, unplug the AC power cord from the outlet. (2) Disconnect the interface cable 1. (3) Press the knobs 2 on left and right sides and open the stacker cover assy 3. (4) Take out the image drum unit 4.
3.3.2 IC Card Cover (1) Open the IC card cover 1, press it from both sides at the hinges in the directions of arrows shown below and remove it. 51 / 40718401TH Rev.5...
3.3.3 LED Head (1) Press the knobs on left and right sides and open the stacker cover assy 1. (2) Open the hook section on the left side of the stacker cover and remove the LED head 2. Note: • Be sure not to touch directly or push on the SLA part of the LED head.
3.3.4 Operator Panel Assy (1) Unlock two latches on the upper cover from the rear side, lift the operator panel assy 1 from the back and remove it. (2) Remove the Sumi card (operator panel) 2 from the connector (CN1) 3. Note : You can remove the operator panel assy while the upper cover installed on the unit.
3.3.5 Lower Base Unit (1) Remove the upper cover assy (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the connecting cables 2 and 3 of the pulse motors from the connectors (DM, RM) of the M5B-PCB 1.
3.3.6 Pulse Motor (Main/Drum) (1) Remove the upper cover assy (see 3.3.1). (2) Remove the lower base unit (see 3.3.5). (3) Remove two screws 1 and remove the pulse motor (main/drum) 2 from the motor bracket 3. View A View A 55 / 40718401TH Rev.5...
3.3.7 Pulse Motor (Registration) (1) Remove the upper cover assy (see 3.3.1). (2) Remove the lower base unit (see 3.3.5). (3) Remove two screws 1 and remove the pluse motor (registration) 2 from the motor bracket 3. View A View A 56 / 40718401TH Rev.5...
3.3.8 Face Up Stacker Assy (1) Remove the upper cover assy (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the screw 1 and remove the Sumi card (operator panel cable) 2 off the latch section of face up stacker 4.
3.3.9 Eject Roller Assy (1) Remove the upper cover assy (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the lower base unit (see 3.3.5). (5) Disengage the eject roller assy 1 from the lower base 2 by pressing the latch section of the eject roller assy 1 in the direction of the arrow shown below, and remove the eject roller assy 1.
3.3.10 Motor Assy (1) Remove the upper cover assy (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the lower base unit (see 3.3.5). (5) Stand the lower base unit on its side as shown, and unlock two latches, then remove the motor assy 59 / 40718401TH Rev.5...
3.3.11 Hopping Roller Shaft Assy (1) Remove the upper cover (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the lower base unit (see 3.3.5). (5) Remove the motor assy (see 3.3.10). (6) With the lower base unit 1 standing on its side, remove the one-way clutch gear 2 and the bearing (A) 3.
3.3.12 Stacker Cover Assy (1) Remove the upper cover assy (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the reset lever R 1. (5) Detach the reset spring 2 from the lower base unit 3, turn the reset lever L 4 in the direction of arrow until it stops, and remove it in the direction of arrow (6) Unlock two latches of the lower base unit 3, then remove the stacker cover assy 5.
3.3.13 Registration Roller (1) Remove the upper cover (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the lower base unit (see 3.3.5). (5) Remove the motor assy (see 3.3.10). (6) With the lower base unit standing on its side, remove the one-way clutch gear 1.
3.3.14 Roller Transfer Assy (1) With the power switch turned off, unplug the AC cord from the outlet. (2) Open the stacker cover. (3) Release the roller transfer assy 1 by unlocking the latch of the main unit (never apply excessive force when unlocking the latch).
3.3.15 Fusing Unit (1) Remove the upper cover (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the stacker cover assy (see 3.3.12). (5) Remove four screws 1, lift and remove the fusing unit 2. Caution: Fusing unit may be hot.
3.3.16 Back-up Roller (1) Remove the fusing unit assy (see 3.3.15). (2) Lift the left side of the back-up roller 1, and pull it out to the left side (at this time, two bushings (back- up) 2 and the bias springs (back-up) 3 will also come off). 65 / 40718401TH Rev.5...
3.3.17 Sensor Plate (Inlet) (1) Remove the upper cover (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the lower base unit (see 3.3.5). (5) Press the clamps of three sensor plates (inlet and paper) 1, and remove them by pressing them upward from the bottom.
3.3.18 Sensor Plate (Outlet) (1) Remove the upper cover assy (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the eject roller assy (see 3.3.9). (4) Remove the face up stacker assy (see 3.3.8). (5) Remove the lower base unit (see 3.3.5). (6) Remove the fusing unit assy (see 3.3.15).
3.3.19 Manual Feed Guide Assy (1) Remove the upper cover assy (see 3.3.1). (2) Open the manual feed guide assy 1, and release the engagement on both sides with the main unit by carefully bending the manual feed guide assy 1. Note : When remounting, verify the proper the engagements as shown in the diagram.
3.3.20 Sensor Plate (Paper Supply) (1) Remove the upper cover assy (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the lower base unit (see 3.3.5). (5) Press the clamps of the sensor plate (paper supply) 1 to unlock the latch, and remove it from the base plate 2.
3.3.21 M5B-PCB (1) Remove the upper cover assy (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the lower base unit (see 3.3.5). (5) Remove the connector (2NDTRAY) 6. (6) Remove three screws 1.
3.3.22 Transformer (1) Remove the upper cover assy (see 3.3.1). (2) Remove the operator panel assy (see 3.3.4). (3) Remove the face up stacker assy (see 3.3.8). (4) Remove the connectors (CN1 and CN2). (5) Remove two screws 1, and remove the transformer 2. Note : When reinstalling the transformer, be sure to lay the AC and transformer’s primary side cables under the divider (see view A diagram below).
3.3.23 Power Supply/Sensor Board and Contact Assy (1) Remove the upper cover assy (see 3.3.1). (2) Remove the lower base unit (see 3.3.5). (3) Remove the M5B-PCB (See 3.3.21). (4) Remove the transformer (see 3.3.22). (5) Remove the AC inlet 1 from the base plate 2. (6) Remove the screw 3 and remove the grounding (earth) wire 4.
3.3.24 Cassette Guide L Assy (1) Remove the paper cassette. (2) Remove the upper cover assy (see 3.3.1). (3) Remove the lower base unit (see 3.3.5). (4) Remove the M5B-PCB (see 3.3.21). (5) Remove the transformer (see 3.3.22). (6) Remove the power supply/sensor board (see 3.3.23). (7) Remove two screws 1, and remove the guide rails 2.
3.3.25 Cassette Guide R Assy (1) Remove the paper cassette. (2) Remove the upper cover assy (see 3.3.1). (3) Remove the lower base unit (see 3.3.5). (4) Remove the M5B-PCB (see 3.3.21). (5) Remove two screws 1, and remove the guide rails 2. (6) Remove the screw 3, and remove the cassette guide R 4 by shifting it in the direction of arrow.
3.3.26 Spacer Bearing (L/R) (1) Remove the back-up roller (see 3.3.16). (2) Remove spacer bearing (L/R) with a tip of screw driver. Spacer bearing L Spacer bearing R 75 / 40718401TH Rev.5...
ADJUSTMENT This chapter provides explanations concerning the adjustment necessary when replacing a part. The adjustment is made by changing the parameter value set in EEPROM on the main control board. The parameter can be set by the key operation from the operator panel. This printer has three kinds of maintenance modes, and it is necessary to select one of the modes when replacing any parts.
4.1.3 Engine Maintenance Mode Note: This mode is used only by maintenance personnel, and it should not be released to the end users. (1) To enter into the engine maintenance mode, turn the power on while holding ENTER and FORM FEED keys down.
4.1.4 EEPROM initialization The corresponding are of the EEPROM is initialized for each event as shown Table 4-1. Talbe 4-1 EEPROM Initial Setting Range EEPROM area No Event User maintenance menu reset System main- tenance EEPROM reset Engine maintenance Note2) Note2) engine reset Firm revision check error at power-on...
Adjustment When Replacing a Part Adjustment is necessary when replacing any of the following parts. Part Replaced Adjustment LED Head Set the LED head drive time. Image Drum Cartridge Reset the image drum counter (refer to User's manual). Main Control Board EEPROM data Upload / Download 4.2.1 Setting of LED Head Drive Time...
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• Setting of LED Head Drive Time Drive time of the LED head is set by setting the parameter of drive time of EEPROM according to the luminous intensity marking on the LED head. a. Corresponding table of luminous intensity marking and drive time parameter Luminous intensity Luminous intensity Drive time parameter...
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c. Setting Example: Method for setting the parameter to 19 (for a case where the previous parameter setting was 8). Operation LCD display after operation Turn the POWER switch ENG MNT on while holding the FORM FEED and ENTER keys down. LED HEAD Displays previous Press the MENU key...
4.2.2 Uploading/Downloading EEPROM data When the controller printed circuit board is replaced, the contents of the old EEPROM shall be copied to the new EEPROM on the new board to preserve customer settings. For the purpose, use the EEPROM operation on the Option of the Maintenance Utility. To copy follow the steps below. (1) Be sure to confirm that the printer and the PC are connected with a centronics I/F cable.
PERIODICAL MAINTENANCE Periodical Replacement Parts The parts are to be replaced periodically as specified below: Part name Condition for replacement Cleaning Remarks • Toner cartridge(Type 5) About 2,000 sheets of paper have been printed. • LED head Consumables • Image drum cartridge About 20,000 sheets of paper have been printed.
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(1) Set the LED head cleaner to the LED lens array as shown in the figure, then slide the cleaner back and forth horizontally several times to clean the head. Note: Gently press the LED head cleaner onto the LED lens array. LED head clean pad LED lens array (2) Throw the cleaner pad away.
5.2.2 Cleaning Page Function There is a charge roller cleaning function with this printer, which can be executed by the user. (1) While the printer is in off-line mode, press both keys simultaneously for at least 2 seconds. The printer enters the cleaning mode. (2) The LCD displays "CLEANING"...
TROUBLESHOOTING PROCEDURES Troubleshooting Tips (1) Check the troubleshooting section in the Printer Handbook. (2) Gather as much information about the situation as possible. (3) Inspect the equipment under the conditions close to those in which the problem had occurred. Points to Check before Correcting Image Problems (1) Is the printer being run in proper ambient conditions? (2) Are supplies (toner) and routine replacement part (image drum cartridge) being replaced properly? (3) Is the printing paper normal (acceptable quality)?
Preparation for Troubleshooting (1) Operator panel display The failure status of the printer is displayed by the liquid crystal display (LCD) of the operator panel. Take proper corrective action as directed by messages which are being displayed on the LCD. <For ODA>...
Troubleshooting Flow Should there be a problem with the printer, carry out troubleshooting according to the following procedure flow: Problems Carry out a detailed Problems Troubleshoot from the LCD troubleshooting with the indicated by LCD status message list. troubleshooting chart. message See Section 6.5.1.
6.5.2 LCD Message Troubleshooting If the problems cannot be corrected by using the LCD status message/problem list, follow the troubleshooting flowcharts given here to deal with them. Trouble Flowchart number The printer does not work normally after the power is turned on. Jam alarm Paper input jam Paper feed jam...
The printer does not work normally after the power is turned on. • Turn the power off, then back on. • Is all black message being displayed by the LCD display? • No Is the AC cord being connected properly? •...
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• Take the measurement of the following voltage readings at connector CN2 on the power supply/ sensor board: Voltage between Pins 1 and 3: ... about 40 V AC Voltage between Pins 5 and 6: ... about 9.2 V AC Are the voltages within the normal range? •...
[JAM error] Paper input jam • Does the JAM error occur when the power is turned on? • Yes Is the paper at the inlet sensor? • Yes Remove the paper. • No Is the operation of the inlet sensor plate normal (moves freely when it is touched)? •...
[JAM error] Paper feed jam • Does the paper feed jam occur when the power is turned on? • Yes Is the paper on the paper sensor plate? • Yes Remove the paper. • No Is the operation of the paper sensor plate normal (moves freely when it is touched)? •...
2-2-a • No Check the gears (transfer roller gear, idle gear and reduction gear). • Yes Is the fusing unit being installed properly? • No Install the fusing unit properly. • Yes Is the image drum cartridge being set properly? •...
Paper size error • Is paper of the specified size being used? • No Use paper of the specified size. • Yes Are inlet sensor plates 1 and 2 operating properly (moves freely when they are touched)? • No Replace the inlet sensor plate or clean the inlet sensor on the power supply/sensor board.
Fusing unit error (ERROR 71) (ERROR 72) (ERROR 73) • Turn the power off, then back on again. • Yes Is the thermistor open or shorted? Measure the resistance between thermistor contacts (heater contacts 120V/3Ω or 240V/10Ω, and thermistor contacts 220KΩ at room temperature) (see Figure 6-2 or Section 7.3).
Synchronous serial I/O error (ERROR 74) or I/F timeout between printer and op- tional tray (ERROR 81) • Is an option tray (High Capacity Second Paper Feeder or Power Envelope Feeder) being used? • Yes Is the cable between the main control board and the optional tray being connected properly? •...
6.5.3 Image Troubleshooting Procedures for troubleshooting for abnormal image printouts are explained below. Figure 6-3 below shows typical abnormal images. Problem Flowchart number Images are light or blurred entirely (Figure 6-3 Dark background density (Figure 6-3 Blank paper is output (Figure 6-3 Black vertical belts or stripes (Figure 6-3 Cyclical defect (Figure 6-3 Prints voids...
Images are light or blurred entirely. • Is toner low (is the TONER LOW message displayed)? • Yes Supply toner. • No Is paper of the specified grade being used? • No Use paper of the specified grade. • Yes Is the lens surface of the LED head dirty? •...
Dark background density • Has the image drum been exposed to external light? • Yes Install the image drum in the printer and wait about 30 minutes. • No Perform the cleaning page function (see Section 5.2.2). • Has the problem been solved? •...
Blank paper is output. • Is the LED head being connected properly (check the HEAD1 and HEAD2 connectors on the main control board and PC connector on the LED head)? • No Connect the LED head properly or replace the head cable(s). •...
Black vertical belts or stripes • Perform the cleaning page function (see Section 5.2.2). • Has the problem been solved? • Yes End. • No Replace the image drum cartridge. • Has the problem been solved? • Yes Note: After replacing the image drum cartridge, set the printer to the user mainte- nance mode by turning the power on while pressing the MENU key, and reset the drum counter (see Printer Handbook).
Prints voids • Is the contact plate of the transfer roller in proper contact with the power supply/sensor board (see Figure 6-5)? • No Adjust the contact plate so that it touches the power supply/sensor board and the shaft of the transfer roller properly. •...
Poor fusing (images are blurred or peels off when the printed characters and im- ages on the paper are touched by hand) • Is paper of the specified grade being used? • No Use paper of the specified grade. • Yes Is the tension between the back-up roller (7.52kg) and the surface of back-up roller normal? •...
White vertical belts or streaks • Are the LED lens dirty? • Yes Clean the LED lens. • No Is the contact plate of the transfer roller in proper contact with the power supply/sensor board (see Figure 6-5)? • No Adjust the contact plate to make a proper contact with the power supply/sensor board.
PCB Layout and Connector Signal List (1) Main Control Board (M5B-PCB) Printer front side OPTION HEAD1 HEAD2 OPTION CENT LED Head Operator panel Printer front side Contact face Contact face Printer front side 6 – 1 14 – 1 12 – 1 119 / 40718401TH Rev.5...
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(2) Power Supply/Sensor Board TR OUT * In case of 200V series, there is no F2 on the power supply/sensor board. 120 / 40718401TH Rev.5...
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• FAN Connector Pin Assignment (To fan motor) PIN NO. I/O* Signal Description FANPOW Power supply for fan driving Opening Ground FANALM-N Fan alarm • DM Connector Pin Assignment (To main/drum motor) PIN NO. I/O* Signal Description DMPH1-P Coil 1-N DMPH1-N Coil 1-P DMPH2-P...
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• RM Connector Pin Assignment (To registration motor) PIN NO. I/O* Signal Description RMPH1-P Coil 1-N RMPH1-N Coil 1-P RMPH2-P Coil 2-P RMPH2-N Coil 2-N * I: In O: Out Excitation sequence Step No. PIN NO. Line Color Yellow Black Orange Brown Rotary direction...
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• HEAD1 Connector Pin Assignment (To LED head) PIN NO. I/O* Signal Description HDSTB4-N Strobe 4 HDSTB3-N Strobe3 HDSTB2-N Strobe 2 HDSTB1-N Strobe 1 HDDLD-P Load +3.3V +3.3V power supply for LED driving HDD1-P Data 1 HDD0-P Data 0 OVLED Ground for LED HDD3-P Data 3...
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• PANEL Connector Pin Assignment (To operator panel) PIN NO. I/O* Signal Description PLD-N Load Logic groud PDATAOUT-P Data output PDATAIN-P Data input +5V power supply PSCLK-N Clock * I: In O: Out C: Common • ENVELOPE Connector Pin Assignment (To option feeder I/F) PIN NO.
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• OPTION Connector Pin Assignment (To option RAM or RS232C board) Pin No. I/O* Signal Description Pin No. I/O* Signal Description OR write enable Data bit 16 Logic ground Data bit 0 Address bit 1 Data bit 17 Address bit 2 Data bit 1 RSDTR0-N RS232C Data terminal ready...
Short Plug Setting (1) Main Control Board (M5B-PCB) • Short plug settings Short plug Plug setting Description Factory setting Provided Debug mode Not provided Not provided Normal 2-3 Short +5 V is supplied to Pin 18 of Centronics parallel I/F connector. 2-3 Short 1-2 Short +5 V is not supplied to Pin 18 Centronics parallel I/F connector.
PARTS LIST Figure 8-1 Lower Base Unit 131 / 40718401TH Rev.5...
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Table 8-1 Lower Base Unit (1/2) Name/Rating Part No. Remarks ODA Part No. Hopping roller shaft 3PP4083-6020P001 51112601 Bearing 4PP4083-6022P002 51607402 Hopping roller one-way clutch gear 4PB4083-6024P001 51228901 Registration roller 3PB4083-6030P001 53342401 Bearing (registration) 4PP4083-6031P001 51607501 Roller-Transfer B Assy 40437801 Bearing TR 40438001 Back-up roller...
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Table 8-1 Lower Base Unit (2/2) Name/Rating Part No. Remarks ODA Part No. FG plate (O.P.) 4PP4083-7663P001 Hopping roller rubber 4PB4122-1280P001 Diselectritication Film 3PB4083-6089P001 LED Contact 4PP4083-6173P001 Washer C 4PP4120-1210P001 Washer B 4PP4120-1209P001 Spacer-Bearing R 40392801 Spacer-Bearing L 40392901 Bias spring A 4PP4083-6065P001 Special parts for envelope * Sensor wire Assembly...
Appendix A RS-232C SERIAL INTERFACE (option) 1) Connector • Printer side 25-pin receptacle Type DB-25S (made by Canon) or equivalent • Cable side 25-pin plug Type DB-25S (made by Canon) Shell Type DB-C8-J10-F2-1 (made by Nihon Kouku Denshi) or equivalent Note: Plug shall be fixable with a lock screw.
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4) Signal Level • MARK polarity : -3V to -15V (LOGIC = 1) • SPACE polarity : +3V to +15V (LOGIC = 0) 5) Interface Circuit Receiving Circuit 75188 or equivalent OUTPUT INPUT +12V -12V INPUT Sending Circuit 75188 or equivalent OUTPUT INPUT OUTPUT...
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8) Interface Parameter Setting The following settings are possible by pressing the ENTER key, after selecting the display contents of the LCD of the operator panel by using the keys. Settings are retained even when the printer power is turned off. By pressing the ON LINE key, menu setting mode is completed and the printer returns to on- line state.
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Press the MENU key. Item Baud Rate Contents of Display Function 300 baud 600 baud BAUDRATE Ready 1200 1200 baud Contens 2400 2400 baud 4800 4800 baud 9600 9600 baud 19200 19200 baud Factory Setting: 9600 baud Press the MENU key. Item Bit Length DATABITS...
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Press the MENU key. Item Minimum BUSY Time MIN BUSY Contents of Display Function Ready 200 m SEC 200 ms Contents 1 SEC 1 sec (1000 ms) Factory Setting: 200 m SEC (PCL only) Press the ON LINE key. Setting completed. ON-LINE Ready XXX : PCL, AUTO, HEX DUMP, PRR or FX...
2) Cable • Cable length 6 ft (1.8 m) max. (A Shielded cable composed of twisted pair wires is recommended for noise prevention.) Note: Cable is not supplied with the printer, and is not available from Oki. 143 / 40718401TH Rev.5...
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3) Table of Parallel I/F Signals Pin No. Signal name Signal direction Functions DATA STROBE Parallel data sampling strobe DATA BIT - 1 DATA BIT - 2 DATA BIT - 3 DATA BIT - 4 PR Parallel input and output data DATA BIT - 5 DATA BIT - 6 DATA BIT - 7...
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4) Signal Level • LOW 0 V to +0.8 V • HIGH +2.4 V to 5.0 V 5) Specifications Item Description Mode Compatibility mode, Nibble mode, ECP mode Data bit length 8 bits (in the compatibility mode) Input prime Valid/Invalid Receive buffer 8K, 20K, 50K, 100K, 1M Bytes Control...
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On-line → off-line switching timing by ON-LINE SW ON-LINE SW BUSY SELECT 100 ms max. Off-line → on-line switching timing by ON-LINE SW ON-LINE SW BUSY SELECT 0 min. ACKNOWLEDGE 100 ms max. 0.5 µs to 10 µs INPUT PRIME timing (when set to the effective INPUT PRIME signal) 50 µs min.
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7) Interface Parameter Setting The following settings are possible by pressing the ENTER key, after selecting the display contents of the LCD of the operator panel by using the keys. Settings are retained even when the printer power is turned off. By pressing the ON LINE key, menu setting mode is completed and the printer returns to on- line state.
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Press the MENU key. Item Direction of Data Transfer BI–DIRCT Contents of Display Function Ready Contents Bi-directional data transmission ENABLE Uni-directional data transmission DISABLE Factory Setting: ENABLE Press the MENU key. Item I-PRIME I–PRIME Contents of Display Function Ready Contents I-PRIME signal ignored I-PRIME signal effective Factory Setting: OFF...
Appendix C LOOP TEST (RS-232C INTERFACE) 1) Connect the test connector DB-25S made by Cannon or equivalent Test Connector Connection Diagram 2) Select "LOOP Test" in the system maintenance mode. The codes transmitted from the TD signals are comparatively checked with the data received from the RD signals.
Appendix D DIAGNOSTICS TEST Maintenance Modes • The maintenance modes consist of the user maintenance mode which are released to the user, and the system and engine maintenance modes in the maintenance personnel level not released to the user. • Press the MENU key to update each category.
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(5) Operator Panel Menu Disable • This function is for enabling and disabling the operation panel menu functions (Menu 1, Menu 2, Tray Select, Copies and Paper Size). LCD display USER MNT Press the After the completion MENU key. Press the of processing ENTER key.
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System Maintenance Mode To enter the system maintenance mode, turn the power on while keeping the Recover key pressed • down. • This mode adopts the menu for function selection. • The system maintenance mode provides the following functions: (1) Page Count Display •...
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• The following items are excluded: Head drive time setting Fine adjustment of printing start position Standard tray paper feed amount setting • Transition to the operation mode occurs upon completion of resetting. • Press the MENU key to update each category. The operation returns to the first category after updating the last category, in a loop.
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Engine Maintenance Mode • The engine maintenance mode is activated when the power is turned ON while keeping the FORM FEED key and ENTER key pressed down. • This mode adopts the menu for function selection. • The method for exit from this mode depends on the setting. •...
• Engine maintenance mode menu system LCD display ENG MNT Writing into the EEPROM is performed after No. 1 Press the pressing the ENTER key. Press the ON LINE key No. 4 key. LED HEAD if you wish to get out of this mode. No.
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0 mm * Press the + 1 mm key. Do not change the default setting. T2 POS + 7 mm 0 mm* - 8 mm Press the - 1 mm MENU key. Press the key. Do not change the default setting. T2 TBL No.
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User Factory Set Operation The desired destination can be set by turning the power on while depressing two keys corresponding to the destination according to the following table. This function shall not be open for users. Destination Keys to be Depressed MENU MENU INT A (A4)
APPENDIX E MULTI PURPOSE FEEDER MAINTENANCE OUTLINE Functions This Multi-Purpose Feeder is installed on the front section of the printer, and it supplies paper automatically through the operation of pulse motor, which is driven by signals sent from the printer. The main functions are the followings: •...
MECHANISM DESCRIPTION General Mechanism The Multi-Purpose Feeder feeds the envelopes and paper into the printer by receiving the signal from the printer, which drives the pulse motor inside the Multi-Purpose Feeder, and this motion is transmitted to rotate roller-A and B. The envelope or paper is delivered from the separator into the printer. Once delivered into the printer, the envelope or paper is then controlled and fed through by pulse motor (registration) of the printer.
PARTS REPLACEMENT This section covers the procedures for the disassembly, reassembly and installations in the field. This section describes the disassembly procedures, and for reassembly procedures, basically proceed with the disassembly procedures in the reverse order. Precautions Concerning Parts Replacement (1) Parts replacements must be carried out, by first turning the printer power switch off “O”...
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[Service Tools] Table 3-1 shows the tools required for the replacement of printed circuit boards, assemblies and units in the field. Table 3-1 Service Tools Service Tools Q'ty Application Remarks No. 1-100 Philips 2 ~ 2.5 mm screws screwdriver No. 2-100 Philips 3 ~ 5 mm screws screwdriver No.
Parts Layout This section describes the layout of the main components. Upper Frame Pulse Motor Link Roller-A Roller-B OLEV-11-PCB Separator Figure 3-1 162 / 40718401TH Rev.5...
Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassembly order diagram below. Multi-Purpose Feeder Link (3.3.1) Separator (3.3.2) OLEV-11-PCB (3.3.3) Pulse motor (3.3.4) Planet gear (3.3.5) Roller-A (3.3.6) 163 / 40718401TH Rev.5...
3.3.1 Link (1) Open paper feed cover 1, and disengage the paper feed cover 1 and link 3, while lifting the paper hold 2. (2) Remove the paper hold 2 off the arm 4. (3) Disengage the link 3 from the arm 4, and remove it. * Be careful not to deform the link and arm.
3.3.2 Separator (1) Turn the power switch off “O” and remove the connector cable. (2) Disengage the link and paper feeder cover (see 3.3.1). (3) Remove 2 screws 1, disengage the locks at 2 locations on the upper frame 2 with a screwdriver, and remove the upper frame 2.
3.3.3 OLEV-11-PCB (1) Remove the upper frame [ see 3.3.2 steps (1) through (3) ]. (2) Remove the connector 1. (3) Remove 2 screws 2, and remove the OLEV-11 PCB 3. When reinstalling the printed circuit board, be careful to make sure that the sensor plate is being set correctly.
3.3.4 Pulse Motor (1) Remove the upper frame [ see 3.3.2 steps (1) through (3) ]. (2) Remove the OLEV-11-PCB (see 3.3.3). (3) Remove 2 screws 1, and remove the pulse motor 2. 167 / 40718401TH Rev.5...
3.3.5 Planet Gear (1) Remove the upper frame [ see 3.3.2 steps (1) through (3) ]. (2) Remove the OLEV-11-PCB (see 3.3.3). (3) Remove 2 screws 1, and remove the motor bracket assembly 2 and planet gear 3. 168 / 40718401TH Rev.5...
3.3.6 Roller-A and B While only the removal procedure for roller-A is described here, the removal procedure for roller-B is basically same. When removing roller-B, however, be careful not to deform the sensor plate. (1) Remove the upper frame [ see 3.3.2 steps (1) through (3) ]. (2) Remove the separator assembly (see 3.3.2).
TROUBLESHOOTING Precautions Prior to the Troubleshooting (1) Go through the basic checking items provided in the Printer Handbook. (2) Obtain detailed information concerning the problem from the user. (3) Go through checking in the conditions similar to that in which the problem occurred. Preparations for the Troubleshooting (1) Display on the operator panel The status of the problem is displayed on the LCD (Liquid Crystal Display) on the operator panel.
Troubleshooting Method When a problem occurs, go through the troubleshooting according to the following procedure. Problem occurs Problem displayed by Troubleshooting Carry out detailed the LCD message according to the LCD troubleshooting Status Message List according to the (see 4.3.1) Troubleshooting Flow (see 4.3.1) 4.3.1...
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• ( JAM error ) Paper Inlet Jam • Does paper jam at the inlet when the power is turned on? • YES Is the paper located above the sensor plate (inlet)? • YES Remove the paper. • NO Is the sensor plate (inlet) operating normally? •...
CONNECTION DIAGRAM Interconnection Diagram Pulse motor 2 M-T3 1 M-T4 4 M-T1 3 M-T2 OLEV - 11-PCB To the Printer or High Capacity Second Paper Feeder 173 / 40718401TH Rev.5...
PARTS LIST Figure 6-1 Multi-Purpose Feeder 175 / 40718401TH Rev.5...
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Table 6-1 Multi-Purpose Feeder Description OKI-J Part No. ODA Part No. Q'ty Remark Roller-A 3PB4083-5514P001 Roller-B 3PB4083-5524P001 Planet gear 4PP4083-5520P001 Link 3PP4083-5540P001 Separator 4PP4083-5544G001 Pulse motor 4PB4083-6075P001 Same as printer unit. OLEV-11-PCB 4YA4121-1014G011 Connector cable 3YS4011-3141P003 For ODA 3YS4011-3141P001 For OEL/INT...
APPENDIX F HIGH CAPACITY SECOND PAPER FEEDER OUTLINE Functions The printer is mounted on top of this High Capacity Second Paper Feeder. The High Capacity Second Paper Feeder supplies paper automatically through the operation of pulse motor (hopping), which is driven by signals sent from the printer.
MECHANISM DESCRIPTION General Mechanism The High Capacity Second Paper Feeder feeds the paper into the printer by receiving the signal from the printer, which drives the pulse motor inside the High Capacity Second Paper Feeder, and this motion is transmitted to rotate the one-way clutch of the hopping frame assembly. The paper is delivered from the hopper into the printer through the turning of the hopping roller and feed roller.
PARTS REPLACEMENT This section covers the procedures for the disassembly, reassembly and installations in the field. This section describes the disassembly procedures, and for reassembly procedures, basically proceed with the disassembly procedures in the reverse order. Precautions Concerning Parts Replacement (1) Parts replacements must be carried out, by first turning the printer power switch off “O”...
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[Service Tools] Table 3-1 shows the tools required for the replacement of printed circuit boards, assemblies and units in the field. Table 3-1 Service Tools Service Tools Q'ty Application Remarks No. 1-100 Philips 2 ~ 2.5 mm screws screwdriver No. 2-100 Philips 3 ~ 5 mm screws screwdriver No.
Parts Layout This section describes the layout of the main components. Cassette Assy Upper Plate Hopping Roller Assy Guide R (2nd) Assy (includes stepping motor and TQSB-2 PCB) One-way Clutch Gear Hopping Frame Assy Stepping Motor Guide L (2nd) Assy Figure 3-1 181 / 40718401TH Rev.5...
Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassembly order diagram below. High Capacity Paper Feeder Stepping motor (hopping) (3.3.1) TQSB-2 PCB (3.3.2) Hopping roller shaft assy and One-way clutch gear (3.3.3) 182 / 40718401TH Rev.5...
3.3.1 Stepping Motor (Hopping) (1) Turn the printer power switch off, pull out the AC cord from the outlet. Remove the printer off High Capacity Second Paper Feeder. (2) Take the paper cassette assy 1 out of High Capacity Second Paper Feeder. (3) Remove six screws 2 and remove the upper plate 3.
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(6) Remove three screws 9 which are holding the guide R (2nd) assy 0 to the bottom plate A. Remove the screw B which is keeping the rear cover C and guide R (2nd) assy 0. Remove the guide R (2nd) assy 0. (7) Remove the protect (M) D, guide bracket E, planet gears F and planet gear bracket G.
3.3.2 TQSB-2 PCB (1) Remove the pulse motor (see 3.3.1). (2) Remove the connector O from the TQSB-2 PCB P. (3) Remove the screw Q and remove the TQSB-2 PCB P. Note : Refer to Detall A in the previous page. 3.3.3 Hopping Roller Shaft Assy and One-way Clutch Gear (1) Follow up to step (3) of 3.3.1 and remove the hopping frame assy.
TROUBLESHOOTING Precautions Prior to the Troubleshooting (1) Go through the basic checking items provided in the Printer Handbook. (2) Obtain detailed information concerning the problem from the user. (3) Go through checking in the conditions similar to that in which the problem occurred. Preparations for the Troubleshooting (1) Display on the Operator panel The status of the problem is displayed on the LCD (Liquid Crystal Display) on the Operator panel.
Troubleshooting Method When a problem occurs, go through the troubleshooting according to the following procedure. Problem occurs Problem displayed by Troubleshooting Carry out detailed the LCD message according to the LCD troubleshooting Status Message List according to the (see 4.3.1) Troubleshooting Flow (see 4.3.1) 4.3.1...
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• ( JAM error ) Paper Inlet Jam • Does paper jam at the inlet when the power is turned on? • YES Is the paper located above the sensor plate (inlet)? • YES Remove the paper. • NO Is the sensor plate (inlet) operating normally? •...
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*** For the rev. no. of the Parts List for the Cassette assembly (2nd tray) should be applied No.10. The No.10 includes a change of cassette and Tale Guide. Addition of projection part Addition of notch Addition of groove Addition of latch Tale Guide Cassette Note : Cassette and Tale Guide need concurrent replacing.
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OKIPAGE 10ex LED Page Printer Troubleshooting Manual with Component Parts List ODA/OEL/INT 1999. 1. 18 Rev.1 1 / 143 40990901TH Rev.1...
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CONTENTS OUTLINE......................3 TOOLS ......................3 CIRCUIT DESCRIPTION ................4 TROUBLESHOOTING ..................35 CIRCUIT DIAGRAM ..................61 COMPONENT PARTS LIST .................96 40990901TH Rev.1...
OUTLINE This manual has been written to provide guidance for troubleshooting of the OKIPAGE 10ex Printer (primarily for its printed circuit boards), based on the assumption that the reader has a thorough knowledge concerning the printer. Read the maintenance manual for this printer, if necessary.
Its block diagram is shown in Fig. 3-1 . (1) Reception control The OKIPAGE 10ex Printer can be equipped with one I/F port by adding an RS232C I/F option board in addition to the Centronics I/F on the main control board.
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1MB Memory Board RS232C Interface Board (Option) (Option) Main Control Board For optional board Multi-Purpose Feeder (Option) Program & Font ROM Resident RAM 6MB Mask ROM 512K x 8 bit DRAM High Capacity DATA (2MB) Second Paper Feeder (Option) (32bit) EEPROM Operation Panel Centronics...
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A2 to A23 D0 to D31 PD2, 3 CAS0 to CAS3 RAS2 RAS3, 4 RAS2 to RAS4 ORE, RD, CS3, EEPCS, EECLK EEPDAT IOS1 Figure 3-2 Memory Expansion Board Block Diagram (Option) 40990901TH Rev.1...
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A2 to A23 D0 to D31 PD2, 3 CAS0 to CAS3 RAS3, 4 RAS2 to RAS4 ORE, RD, CS3, EEPCS, EEPCLK EEPDAT IOS1 RS-232C CONNECTOR TXD, RST, DTR Figure 3-3 RS-232C Serial Interface Board Block Diagram (Option) 40990901TH Rev.1...
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CPU and Memory (1) CPU (MHM2029-004K) CPU core RISC CPU (MIPS R3000 compatible) CPU clock 7.067 MHz Internal CPU CLK 28.268 MHz (2) Program and Font ROMs ROM capacity 6M bytes (24M bit mask ROM two pieces) ROM type 24M bits (1.5M x 16 bits) Access time 100 ns (3) Resident RAM...
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D00 to D32 Option board IC2, IC3 Mask ROM A00 to A25 (1.5M x 16 bits) 2 pieces <Program> RAS0 RAS1 RAS2 RAS3 RAS4 RAS5 IC4, IC5, IC6, IC7 RAS0 CAS0 DRAM CAS1 (512 k x 8 bits) CAS2 4 pieces CAS3 RD/WR Main...
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Figure 3-5 Timing Chart of CPU & Memory Circuit 10 / 40990901TH Rev.1...
Reset Control When power is turned on, a CLRST-N signal is generated by the rising sequence of +38V and +8V power supply. +38V +8V (15V) – IC10 To Option Board Power OFF Power ON +38V +38V IC10-11 IC10-10 Q10 Input CLRST-N 11 / 40990901TH Rev.1...
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EEPROM Control The 93LC46A is an electrical erasable/programmable ROM of 64-bit x 16-bit configuration. Data input to and output from the ROM are bidirectionally transferred in units of 16 bits through a serial I/O port (SSTXD-P) in serial transmission synchronized with a clock signal from the CPU. The EEPROM operates in the following instruction modes SSTXD-P EEPRMCS0-P...
Centronics Parallel Interface The CPU sets a BUSY-P signal to ON at the same time when it reads the parallel data (PDATA1- P to PDATA 8-P) from the parallel port at the fall of PSTB-N signal. Furthermore, it makes the store processing of received data into a receive buffer terminate within a certain fixed time and outputs an ACK-N signal, setting the BUSY-P signal to OFF.
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Operator Panel Control The operator panel consists of the following circuits. OLCC-2 Main control board PANEL BU6152S SSTXD-P 44780 DB4~DB7 SSRXD-P Control Driver SSCLK-N SSLD-N Zebra Rubber Flexible Cable (1) BU6152S (LSI) This LSI is connected to a clock synchronous serial port of the CPU. It controls switch data input, LED data output and LCD data input/output according to the commands given by the CPU.
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LED Head Control An LED correcting head, which is capable of correcting the illumination of the LED for each dot, is being used in this printer. LED illumination correction function of 16 steps is carried out by using an EEPROM which is installed in the LSI that maintains the LED illumination correction values, and an LED correction drivers (MSM6731BWAF or MSM6732BWAF) together as a pair.
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Normal Mode Printing Timing Chart CLOCKI LOADI DATAI3~0 STRB1I-N STRB2I-N STRB3I-N STRB4I-N First line printing data sent Second line printing data sent First line printing The printing operation is carried out in the following sequence. First, the printing data DATAI3 through DATAI0 are stored, sequentially shifted, in the shift registers of the LED drivers, by the printing data synchronous clock, CLOCKI.
Motor Control (1) Registration and main (drum) motors A registration motor and a drum motor are driven by means of control signals from the CPU and a driver IC. Main Control Board +38V A2918SW DMPH1-P DMPH1-N 1 Main (Drum) Motor DMPH2-P DMPH1-P 2 DMPH2-N 3...
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(3) Registration motor RMON-N RMPH1-P RMPH2-P Stop Forward rotation Reverse rotation Rotation Hopping drive Registration roller drive Operation at normal speed: T0 to T3 = 1.016 ms (4) Drive control Time T0 to T3 determines the motor speed, while the difference of phase direction between phase signals DMPH1-P and DMPH2-P (RMPH1-P and RMPH2-P) determines the rotation direction.
Fuser Temperature Control For the temperature control by heater control, the variation in the resistance of the thermistor is A/D converted in IC2 and the resultant digital value is read and transferred to the CPU. The CPU turns on or off the HEATON-N signal according to the value of the signal received from IC2 to keep the temperature at a constant level.
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The temperature control is described below. Temperature ˚C HEATON-N 176˚C * The values V1 and V2 vary according to setting mode. 175˚C (Standard temperature) When Vt rises to V2 or more, the heater is turned off (by setting HEATON-N signal to LOW). When Vt drops to V1 or less, the heater is turned on (by setting HEATON-N signal to HIGH).
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For heater breakdown detection, the heater must first be turned on. When a temperature rise which corresponds to the switching on of the heater does not occur, then a heater breakdown is detected. To shorten the breakdown detection time, the following circuit is used. Immediately after the power is turned on, the thermistor is checked and THERM-CMP signal is turned on to turn the resistor Q44 on.
3.10 Fan Motor Control The stop/rotation of the fan motor is controlled by FANON1-P and FANON2-N signals. When the fan motor rotates normally, FANALM-P signal generated in the hole element built in the fan motor is input to the CPU. TR503 R554 TR504...
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3.11 Cover Open When the cover is opened, a cover open microswitch is opened. This makes a CVOPN-N signal low, thereby the CPU detects the open state. Furthermore, opening the cover stops applying a +5V power to the high voltage power supply unit, resulting in stopping all high voltage outputs. Main Control Board Power Supply Board High...
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3.12 Power Supply Board (1) Low voltage power supply An AC power from an inlet is input to a transformer via fuses, AC switch and noise filter and then lowered to a 32 VAC power and a 10 VAC power. The 32 VAC power is converted to a +38 VDC output through a rectifying/smoothing circuit.
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(3) Sensor control Power Supply Board Main Control Board PSOUT-N WRSNS-N PAPER-N PSIN1-N TNRSNS-N PSIN2-N Sensor signal Shield Transparent 25 / 40990901TH Rev.1...
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(4) High-voltage power supply circuit This high-voltage power supply circuit receives the high-voltage generation timing control command that is transmitted in serial through the power supply interface from the control section. It decodes this command by LSI (IC2) and outputs high-frequency pulses to the corresponding high-voltage generating circuits through pins 11, 12, 13, 14 and 15 of LSI (IC2).
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3.13 Option Tray Control The kinds of option trays, High capacity Second Paper Feeder and Multi purpose Feeder can be connected to the printer. The trays are distinguished by two digit ID numbers. The option trays and the printer communicate with each other through bi-directional clock synchoronized serial interface.
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TQSB-2 (Option) Main Control board 2ND TRAY 65-43 OPTSD-P OPTSCLK-N OPTSDR-N OPTSIN-N MS4646 270Ω 560Ω High capacity Second Paper Feeder SEN1 SEN2 OLEV-(Option) (Paper) (Cover Open) 0C 13 ENVELOPE 65-43 OPTSD-P OPTSCLK-N OPTSDR-N OPTPSIN-N MS4646 1, 2 3, 4 SEN2 (Paper) Multi purpose Feeder Option Tray Connection and Block Diagram...
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Option Tray Control Serial Interface Time Chart Command (CPU→Tray) Reply (Tray→CPU) Next Command (CPU→Tray) OPTSD-P b7 b6 b5 b4 b3 b2 b1 b0 b6 b5 b4 b3 b2 b1 b7 b6 b5 b4 b3 b2 b1 b0 OPTSCLK-N OPTSDR-N 1.5µS Min.
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Motor Control Time Chart Motor on (C2) Phase change (C1, C0) Paper sensor (OPTPSIN-N) # of Phase changes after paper sensor detection is downloaded by CPU Triggered by CPU Automatically stops Option Tray Motor Control Time Chart...
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3.14 Memory Expansion Option Board A2 to A23 D0 to D31 PD2, 3 CAS0 to CAS3 RAS2 RAS3, 4 RAS2 to RAS4 ORE, RD, CS3, EEPCS, EEPCLK EEPDAT IOS1 Memory Expansion Board Block Diagram (Option) The Memory Expansion Option Board is provided with two DRAM chips and two SIMM slots. The SIMM1 slot is used for installation of a DRAM SIMM.
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3.15 RS-232C Serial Interface Option Board A2 to A23 D0 to D31 PD2, 3 CAS0 to CAS3 RAS3, 4 RAS2 to RAS4 ORE, RD, CS3, EEPCS, EEPCLK EEPDAT IOS1 RS-232C CONNECTOR TXD, RST, DTR RS-232C Serial Interface Board Block Diagram (Option) The RS-232C Serial Interface Option Board is provided with a RS-232C I/F and two SIMM slots.
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(1) RS-232C Interface The serial data RXD from the host system, whose line voltage is clamped at the TTL level by D4/D512, are received by the CPU built-in serial controller. DSR and CTS signals are terminated through 5.6kΩ resistors. Send signals TXD, RTS and DTR are put out from the CPU and are sent to lines through a line driver IC (75188).
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(2) SIMM Memory Module The board is provided with two Slots for a 72-pin DRAM SIMM Memory Module and Flash SIMM. The SIMM1 slot is used for installation of a 72-pin DRAM SIMM Memory Module. Up to 6 types of SIMM Memory Module can be installed. 1M byte, 2M bytes, 4M bytes, 8M bytes, 16M bytes and 32M bytes.
TROUBLESHOOTING Troubleshooting Table (A) Power Supply Board (OL1- or OL2-PCB) Note: The malfunction of the power supply is not repaired by an agency. The abnormality to be treated here is that of sensors only. Flowchart Failure LCD Message Paper input jam occurs frequently. A - 1 #: TRAY1, TRAY2, FEEDER, MANUAL I N P U T J A M...
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Main Control Board (1/2) Flowchart Failure LCD Message Abnormal message display on the LCD B - 1 (no display, unclear display, display with some dot not lit). Program ROM error. B - 2 E R R O R Font ROM error. B - 3 E R R O R Resident RAM error.
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Main Control Board (2/2) Flowchart Failure LCD Message Processor error. B - 13 E R R O R Print overrun occurs frequently. B - 14 P R I N T O V E R R U N Error host I/F occurs frequently. B - 15 H O S T I / F...
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Operator Panel Board (OLCC-2-PCB) Flowchart Failure LCD Message Abnormal message display on the LCD C - 1 (no display, unclear display, display with some dot not lit, etc.) The key switch operation on the operator C - 2 panel is disabled. The LCD does not display any message.
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Multi purpose feeder (OLEV) Flowchart Failure LCD Message Paper input jams occur frequently. E - 1 F E E D E R I N P U T J A M Paper out occurs even if the papers are in E - 2 F E E D E R cassette or a tray.
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Troubleshooting Flowchart Paper input jam occurs frequently. • Is PS3 (Inlet Sensor 1) operating normally? • No Replace PS3. • Yes Is PS5 (Inlet Sensor 2) operating normally? • No Replace PS5. • Yes Replace IC2 (LC26023A). Paper feed jam occurs frequently. •...
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Paper size error occurs frequently. • Is PS3 (Inlet Sensor 1) operating normally? • No Replace PS3. • Yes Is PS5 (Inlet Sensor 2) operating normally? • No Replace PS5. • Yes Replace IC2 (LC26023A). The message “TRAY PAPEROUT” remains displayed on the LCD •...
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The printer does not function at all, and the LCD does not display any messages. • Is fuse F1 open? • Yes Replace F1. • No Is the voltage waveform between Pins 1 and 3 of the connector (CN2) same as the waveform shown below? CH1 + CH1: DC 20V/div.
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• No Replace the transistor Q1. • Has the problem been solved? • Yes End. • No Replace the transistor Q2. • Has the problem been solved? • No Replace IC1 (FA7617P-1). • Yes Check the connection between the power supply board and main control board.
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A-11 Serial interface does not connect to the host device. • Is the voltage waveform between Pins 5 and 6 of the connector (CN2) same as the waveform shown below? CH1 + CH1: DC 5V/div. Normal 5ms/div. • No Replace the transformer T1. •...
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Abnormal message display on the LCD. • Replace IC2, IC3. • Has the problem been solbed? • Yes End. • No Is the 7.067-MHz clock signal being sent to Pin 3 of OSC1? • No Replace OSC1 (CST 7.067MTW). Is the output at Pin 13 (CLRST-N) of IC10 (NJM2901 or µPC339G2) normal •...
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Option RAM error (ERROR 60). • The MENU PRINT memory capacity does not increase even when an expansion memory board is installed. • Are negative pulses being sent to Pin 83 (DRAS2-N), Pin 84 (DRAS3-N), Pin 85 (DRAS4-N), Pin 86 (DRAS5-N) of the connector (OPTION)? •...
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B-10 Option tray I/F timeout error (ERROR 81). • Is the connection at the connector (2NDTRAY) properly engaged? • No Replace the connector (2NDTRAY). • Yes Is the connection at the connector (ENVELOPE) properly engaged? • No Replace the connector (ENVELOPE). B-11 Watchdog timer timeout error occurs frequently (ERROR 90), or illegal CPU version (ERROR 91).
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B-14 Print overrun occurs frequently. • Is an option board mounted? • Yes Go to the flowchart B-6. • No Set DRAM SIMM Memory Module on an option board, then mount it to the printer. • Has the problem been solved? •...
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B-17 Paper input jam. • Is the hopping motor rotating normally? • No Are the waveforms of RMPH1-P and RMPH2-P signals as shown in Section 3.9 (2) being sent to Pins 26 and 17 of IC8 (MTD2005F) respectively? • No Failure of IC1 (MHM2029-004K).
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B-18 Paper feed jam occurs frequently. • Is the main (drum) motor rotaing normally? • No Are the waveforms of DMPH1-P and DMPH2-P as shown in Section 3.9 (1) being sent to Pins 13 and 8 of IC9 (A2918SW) respectively? •...
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B-21 Data sent through the centronics I/F cannot be received. • Is the signal at Pin 11 (BUSY-P) of the connector (CENT) low? • No Is the signal at Pin 3 (PBUSY-P) of IC11 (7407) change at data reception as shown below? ON-LINE OFF-LINE PBUSY-P...
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Abnormal message display on the LCD (no display, unclear display, display with some dot not lit, etc.) • Is +5V power being supplied to Pin 8 of IC1 (BU6152S)? • No Replace CN1. • Yes Is the CLOCK signal being sent to Pin 26 (OP-CLOCK-N) of IC1 (BU6152S)? •...
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The key switch operation on the operator panel is disabled. • Do the signals at Pins, 3, 7, 10, 18, 23, 31 of IC1 (BU6152S) change from high to low level by key switch pushing? • No Replace SW1 to SW8. •...
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Display on the LCD with some dot not lit. • Are 4.15V, 3.3V, 2.46V, 1.61V, and 0.77V powers being supplied respectively to Pins 26, 27, 28, 29 and 30 of IC2 (HD44780)? • No Replace R5 through R10. (OLCC-PCB) • Yes Is the COM signal being sent to Pins 47 through 62 (COM01 to COM16) of IC2 (HD44780)? •...
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Paper input jams occur frequently. • Has the fuse F1 opened? • No Is the high voltage (around 38V being sent to Pin 2 of D1 and Pin 2 of D2? • No Replace D1 or D2. • Yes Is the signal level at Pin 22 of IC2 at low level? •...
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The printer does not recognize High capacity Second Paper Feeder. • Do signal levels at Pin 2 (OPTSCLK-N) and 3 (OPTSD-P) PU alter at power-up time? • No Replace Cable. • No Replace D1 or D2. • Yes Do signal levels at Pin 4, 7, and 9 of IC2 alter at power-up time? •...
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Paper input jams occur frequently. • Is the motor rotating? • No Has the fuse F1 opened? • No Is the high voltage (around 38V) being sent to Pin 2 of D1 and Pin 2 of D2? • No Replace D1 or D2. •...
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The printer does not recognize Multi Purpose Feeder. • Do signal levels at Pin 2 (OPTSCLK-N) and 3 (OPTSD-P) CN1 alter at power-up time? • No Replace Option Tray Cable. • Yes Do signal levels at Pin 4, 7, and 9 of IC2 alter at power-up time? •...
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Option RAM error (ERROR 60) • Remove the DRAM SIMM. Has the problem been solved? • Yes Failure of DRAM SIMM. • Are negative pulses being sent to Pin 83 (DRAS2-N), Pin 84 (DRAS3-N), Pin 85 (DRAS4-N), Pin 86 (DRAS5-N) of the connector (CN1)? •...
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Error host I/F occurs frequently. • Is the connection at the connector (CN2) properly engaged? • No Replace the connector (CN2). • Yes Is the voltage at Pin 14 of Q11 (75188) about +8V and the voltage at Pin 1 of Q11 (75188) about -8V? •...
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