Oki C9000 Series
Contents
1. 24 3 Using the Special Oki Data Tool a small piece of transparent tape wrap the larger white connector parallel to the purple amp blue cable bundle to assist in the removal of the MP Tray Leave a tab of tape to assist you in un wrapping this on the units reassembly 31 24 4 24 5 24 6 Open the Multi Purpose Tray using the lever at the front of the unit Remove one screw from the front stay Remove one screw from the rear stay Take note of the rear stay as it will most likely fall into the machine Release the Multi Purpose Tray from the hinges and gently unthread the two connectors from step 22 2 through the channel 32 NOTE During reassembly the plastic wire harness protector must be carefully and fully reinserted into the channel If it is not fully reinserted it will become damaged and the Multi Purpose Tray will not close properly If this happens and the plastic wire harness protector cannot be repaired the entire MP Tray must be replaced 33 25 Removing the Registration Unit Right Paper Guide Assy NOTE Be sure the Top Cover is open and the basket iS up 25 1 Remove four screws The screw marked by the arrow will also remove the right basket latch 34 25 2 Remove the Multi Purpose Tray Lock Plate Assy 25 3 Remove two screws from rear of Registration Unit 25 4 Unthread the wires at the front and remove the2. Remove eight screws seven inside the printer arrows and one on the front circled NOTE During reassembly dont forget to reinstall the screw through the front of the chassis it s a step many technicians forget 21 4 A flat blade screwdriver may be required to pry the side plate away from the frame at the front of the printer Once done lift the Sensor Registration Assy up to remove and while doing so unplug the two connectors as shown Zi 22 Removing the Duct Gear Assy and the Duct Drive Assy 22 1 Release the tab at the rear and remove the Middle Cover 22 2 Lift the connector for the waste toner motor to wiring harness from under the motor s printed wiring board NOTE Orange connectors are soldered to the board and gy A are not removable DO NOT try to remove the orange connector from the printed wiring board 28 22 3 Unplug the Waste Toner Motor to wiring harness connecior 22 4 Remove the Waste Toner Motor by removing the two screws diagonally mounted and lifting it out 29 23 Removing the Multi Purpose Tray 24 Gently pry out the top center and pull up to remove the Sensor Board Cover NOTE While gently prying lift up on the sides of the cover to remove 30 24 1 Unplug the two connectors that come from the Multi Purpose Tray and unthread them from the guides 24 2 Unplug the ribbon cable to that board
3. if you do 19 2 Unplug connector at upper right of the OR S2R exit sensor board 2 19 3 Remove Face up Output Stacker 19 4 Remove 1 screw from the front of the Exit Assembly 19 5 Remove 1 screw at the rear of the Exit Assembly make sure you remove the correct screw no way to picture the correct screw 22 19 6 Release the tabs two inside the printer cavity and one outside 19 7 Lift Exit Guide up and out and gently unthread the cable bundle and connector through the side f y ELAR IN I NIN Why il 23 NOTE On reassembly insure that the paper exit sensor on the bottom of the exit guide is completely Snapped into it correct position The correct threading for the exit tray guide cable harness is through the wire guide in the rear of the printer cavity When reassembling also insure the cable threading around the Exit Guide Assembly gearing It is very easy to pinch wires or get them too close to the gearing 24 20 Removing the Belt Motor at the front of the unit 20 1 Remove 2 screws and unplug connector 20 2 Remove the Belt Motor 25 21 Removing the Sensor Registration Assy 21 1 Remove the Board Regist Sensor S2Z cover 21 2 Unplug the yellow wire harness connector The second connector should stay plugged in it is removed just for this picture 26 21 3
4. OKI PRINTING SOLUTIONS OKI proColor C910 C930 Engine Service Training amp Disassembly Procedures Wy NAAAAAAAA lt 4 a ee A e r o g S o DISTRIBUTED AT THE C 910 C 930 SERVICE TRAINING CLASSES OKI DATA TRAINING DEPARTMENT Rev 3 20 2000 Bishops Gate Blvd Mt Laurel NJ 08054 OKI procolor Copyright 2011 by Oki Data Americas Inc All Rights Reserved This document describes the disassembly of the Oki Data A3 9 series of printer engines It is to be used during Oki Data Service Training It is not designed to be a self directed course as Oki Data Trainers will provide additional information as required during the course We are not responsible for typographical errors nor or we responsible for manufacturing changes that are considered part of a products life cycle This document is being provided in conjunction with an Oki Data sponsored and instructor led course Be aware that the machine you are working with may have already been disassembled resulting in parts and or screws being incorrectly replaced You are responsible for your own personal safety as you work through this course You are expected to know how to safely operate disassemble and repair machines of this type Oki Data is providing disassembly troubleshooting repair and reassembly instructions specific to this series of printers Oki Data assumes that each student has already demonstrated their knowledge of basic electr
5. Registration Unit being careful of the spring loaded gear at the front 35 26 Removing the Paper Feed Unit 26 1 Remove four screws and remove the Metal Right Side Cover 36 26 2 Remove nine screws from the right side and one from the front dee i pie Unplug 3 eh l al as connectors from the ORS2M Motor Driver Board Remove the Paper Feed Unit 37 21 Removing the High Voltage Power Supply HVPS 2 1 Remove two screws and release three tabs along the back of the HVPS cover Remove the HVPS cover NOTE When reinstalling the HVPS cover insure that all 3 tabs are snapped under the chassis plate Failure to do this may cause transfer voltage problems resulting in washed out images 2 2 Remove two screws and unplug four connectors Gently slide the HVPS toward the rear of the unit until it clears the contacts and lift the board out 38 28 Removing the Low Voltage Power Supply LVPS 28 1 Release the power switch linkage by lifting up and away 28 2 Remove 14 SCrews Wy nam JV Gama 28 3 Unplug four connectors and remove the LVPS VAAN 7 O r a Cae 39 29 Removing Motor DC ID Drum Motors 29 1 Remove two screws and unplug the connector from the OR S2M Motor Driver Board and not from the motor assembly NOTE Each of the four motors is mounted with two screws Also the Black ID motor is mou
6. ently release tab 15 2 Remove the air duct by pulling it outward 14 15 3 Unplug the fan connector 15 4 Release the tabs that secure the fan to the Plate Shield Box Assy Card Cage and remove the fan by lifting up and out 15 NOTE 16 Removing the Controller Board 16 1 16 2 16 3 16 4 Remove the single screw from the I O panel Unplug the 2 power connectors for the fans Remove two screws on the fan bracket Take note that these screws are longer than rest Remove the bracket and fans Oki Data manufactures and sells many different versions of this A3 Engine employing different controller cards Some are EFI Fiery M designed boards while others utilize Oki Data designed controller boards The controller boards pictured in this document may be different from the machine you are disassembling 16 16 5 Remove two screws from the controller card as shown 16 6 Remove one screw from the controller bracket inside the frame 16 7 Remove one screw on the outside of the bracket NV Covi my 17 16 8 Slide the Controller Board slightly to the right and remove 17 Removing the Engine Board 18 da 4354578 GM E tap O i Mall eli a at ar aT wie ain 18 17 1 Unplug 17 connectors and remove four SCrews NOTE Prior to unplugging all of the wiring con
7. go into metal Black screws go into plastic Use Electrostatic Discharge precautions when handling the electronics portions of the printers Pay very close attention to the wiring harnesses and how they are routed This will save time when you reassemble your unit Pay particular attention to not pinching cable assemblies when reassembling the unit Watch for sharp edges and burrs on the metal covers and support brackets This machine contains a lot of metal Be careful store the removed screws with the appropriate assembly they secure 10 Notify the instructor if you have any left over parts screws once you ve completed the re assembly This is IMPORTANT since these are training machines and will be used for additional training classes 11 We do not booby trap machines prior to disassembly or re assembly We may introduce problems after your unit is reassembled and tested This is the best way to learn troubleshooting techniques 12 Learn as much as you can Enjoy the class Ask questions 13 Remember It ls Your Course Ask questions of the instructors 14 When completing the course critique be honest If you find a problem want to make a suggestion utilize the comments section on the rear of the critique form We Do Pay Attention to These Comments Remember Constructive Criticism is always welcome and it helps us to improve this course HI This Page Is Intentionally Blank A3 Printer Engine Disa
8. nectors from the engine controller board make note of the wire harness routing Note where the various cables harnesses enter the card cage etc It s easier to note this now when the machine is fresh than to try and figure it out when you re rushing to reassemble the unit 17 2 Push the Engine Board slightly to the left pull the bottom of the board out then remove entire board NOTE If replacing a failed Engine Board the socketed EEPROM must be retained and inserted into the new Engine Board Remove the Plate Shield Box Assy Card Cage 18 1 Remove 1 screw to release the Plate Clamp HCB LED Head Cable clamp Slide the white plastic bracket outward to release it from the Card Cage 19 18 2 Remove 11 screws from the Card Cage 18 3 Remove Card Cage NOTE To help make the reassembly process easier it is recommended that any of the cables and harnesses that enter the Card Cage from the bottom be taped down in their relative positions as illustrated Yay astm e A 4 Ss UG 1829 TEEB 20 19 Removing the Eject Assy Exit Guide 19 1 Release the five tabs with a flat blade screwdriver the two tabs on the end of the cover first and reach under the area marked with the Red arrow and press to release latches Gently pivot the cover up to remove Do Not Pull cover outlined in the Yellow oval area Damage is sure to occur
9. nted at a 90 angle to the other three The 4 drum motors are interchangeable When you reassemble the printer make sure that you hold the motor s securely when you are installing the holding screws Also make sure that the screws are completely screwed down 40 30 Removing OR S2M Motor Driver Board 30 1 Unplug remaining connectors and remove two SCrews 30 2 Remove Motor Driver Board 41 31 Removing Motor Pulse Toner Shutter aka Toner Supply Motor 31 1 Using a flat blade screwdriver push up to release the tab NOTE Both the motors and the mounting plates are the same however the motors are mounted to the plates 180 opposite of each other Be aware of this for reassembly 42 32 Removing the OR SGG ID System SNS PWB aka Drum Contact and Sensor Board Assy 32 1 Remove four screws one each from the Drum Position Home sensors Use a flat blade to release the two Toner Shutter Home sensors and the Drum Up Down Home sensor 32 2 Use a flat blade screwdriver to release the tabs securing the main portion of the Drum Contact and Sensor Board Assy and unplug one connector Remove the board being careful of the drum contact springs as they may fall out NOTE There are 2 Grounding Springs red arrows at right that ground the OR SGG board to the chassis ground You Must insure that both of these springs are correcily installed during the reassembly proces
10. onics troubleshooting disassembly and reassembly of this type of equipment Important Safety Notes e This product generates potentially lethal voltages While Oki Data has made every attempt to insure safe operation and voltage interruption by installing safety circuits it is possible to by pass these safety circuits Oki Data will not be responsible for the safety of any attendee who knowingly by passes any of these safety devices e The printer units are very heavy The ES3640 printer weighs approximately 190 pounds Safe lifting techniques are required and Oki Data assumes that the attendee is versed in established safe lifting techniques e These printers contain large amounts of metal that may have sharp edges or burrs on edges Oki Data assumes no liability for carelessness that results in injuries to attendees In short Be Aware Be Careful Don t Fool Around e lf you are unsure of something ask the Oki Data Trainer before continuing e Follow the disassembly instructions as they are written to insure your safety as well as your successful disassembly reassembly of the printer s you ll be working with II mm e gs SA N 9 Course Instructions The Oki Data A3 printer engine weighs almost 200 pounds so use caution and common sense when lifting moving or placing it on a surface Follow the procedures as they are written lf you encounter any problems notify the instructor NOTE steel screws
11. r outlined in red NOTE Consumables have been removed for image clarity 5 Remove the exposed black SCrew 46 6 Gently lift the top cover skin off the frame of the printer s top cover 7 Close the top cover and gently lower the metal cover brace on the printer s left side 47 8 Mounted to the top coverisa small circuit board this Is the RFID board The 4 leads coming from this board go to the individual RFID antennae mounted over the toner cartridges NOTE The ribbon cable connector mounted on the circuit boards has a locking collar that must be opened prior to removing and installing the cable 9 Reassemble the Top Cover Skin on the frame of the printer s Top Cover NOTE Make sure the Top Cover Skin sits flush on the frame before you reinstall the 9 screws 48
12. s 43 33 Removing the Fuser Motor 33 1 Remove two screws and unthread wire harness taking note of the routing for reassembly Remove the Fuser Motor Congratulations This concludes the disassembly of the bottom half of the 9 Series A3 Printer unit Prior to starting the next section Top Cover Skin Removal reassemble the bottom half of the printer unit using this step by step disassembly manual in reverse NOTE Take your time and be very careful when reconnecting the wiring harnesses to the 1 motor driver board 2 the engine driver board and 3 when reconnecting the 2 ribbon cables between the engine and motor controller boards A properly reassembled printer contains only one 1 empty red test connector on the motor driver board Take Your Time when rewiring and reassembling this printer HINT If you re unsure of something ask one of the instructors circling the room it s easier to ask for help than ask for a replacement part Reassemble the Bottom Half 44 Top Cover Skin Removal 1 Open the top cover 2 Place media large sheet of paper plastic over top of the consumables cavity to catch any falling screws E i B am TUO E E 4 e Je NOTE Fit the media to go around the hinge plates so the media completely covers the cavity 45 3 Remove the 9 black screws as shown eme a 11 g ol z x 4 Detach the small cove
13. ssembly Procedures All directions are referenced from the Front Operator Panel of the machine Install the consumables First Time Use machines only Remove drum and toner assemblies from the black bags if So equipped and reinstall in your printer 1 Print the following pages E 1 1 1 Configuration Pages E O e 1 1 2 Demo Page 1 SE O um E 2 Unplug the power cord from the wall and from the printer 2 1 Remove all consumables from the printer 2 1 1 Drum and toner assemblies go back in the black bags and fold the tops of the bag to block light leakage 2 1 2 Remove the Transfer Belt 2 1 3 Remove the Fuser assembly 2 1 4 Remove Waste Toner Box 2 2 Close the printer cover 3 Remove the Paper Cassette from the printer a 1 4 Removing the Power Supply Cover 4 1 Remove 5 screws from the Power Supply Cover 4 2 Remove the Power Supply Cover 5 Removing the Right Side Cover and the Right Side Lower Access Cover 5 1 Remove 2 screws from the Right Side pem Cover and use EUNN a flat blade HNN screwdriver to release the four tabs Push down on the top taps and up on the bottom tabs 5 2 Release the latch 5 3 Remove the Right Side Cover 2 4 Remove the Right Side Lower Access Cover by gently prying the plastic pins away from the metal frame 6 Removing the Rear Right Side Cover 6 1 6 2 Open
14. the Top Cover and remove two screws Remove the Rear Right Side Cover my b i mA 4 j if d ir J ee j j j i H i aes e MII OU i lai T A Ca d Ta Fi Ea k 15 r e 7 7 Remove the Duplexer if equipped Dummy Duplex Cover from the left side 8 Removing the Left Side Cover 8 1 Remove the 4 screws and release the tabs by pressing down with a flat blade screwdriver TOU o i 1 8 2 Remove the Left Side Cover ka 4 sam NNN a fF 5 _ r 1 E f q 4 d 5 a e Ni k TRI r 1 i E a i ii 4 l En 1 i a i 5 1 1 q vo 4 i l l E i m pe Ae 9 Removing the Front Cover Assy 9 1 Liftthe Op Panel as far as possible and HE Cat zi pee open the Front gt Hs BRA Cover Assy Remove the 2 screws from the support straps NOTE Be sure the Waste Toner Box has been removed 9 2 Make sure the cover is open all the way remove it by pushing to the left on the black hinges and moving the cover to the right 10 Removing the Right Cover Guard NOTE Read the next 2 pages before starting this step to familiarize yourself with the procedure 10 1 Remove 1 screw and use a flat blade screwdriver to release the tab 10 2 Remove Right Cover Guard 10 3 Take note of the wire routing in the Right Cover Guard for
15. the Waste Toner Box sensor and unthread 10 4 Remove the Sensor board and wiring harness from the right cover card as an assembly 11 Removing the Left Cover Guard NOTE Lift the Basket Assy 11 1 Remove 2 screws and use a flat blade screwdriver to release the 3 latches 11 2 Remove the Left Cover Guard 12 Removing the Front Cover Guard 12 1 Remove 3 screws and remove the Front Cover Guard 12 2 TheFront Cover Guard has a very tight fit even with the screws removed Gently work it off 10 13 Removing the Operator Panel NOTE Read the next 2 pages before starting this step to familiarize yourself with the procedure 13 1 Remove 2 screws 13 2 Remove the Op Panel but do not let it drop as there is ribbon cable attached 13 3 Release the 2 latches on the underside of the Op Panel 1 13 4 Remove the Op Panel Cover 13 5 Remove 1 screw 13 6 Gently unplug the ribbon cable 12 14 Removing the Plate Shield Assy Rear Metal Cover 14 1 Be sure the Top Cover is closed Loosen the 2 captured thumb screws on the side and remove the 2 screws along the top NOTE Be careful when handling any sheet metal as there may be sharp edges left over from the manufacturing process 14 2 Lifting up and at the angle shown remove the Plate Shield Assy 13 15 Removing the Engine Board Fan and Air Duct 15 1 G
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