SERVICE UPDATE No. F1323
Contents
1. SERVICE at your side UPDATE No F1323 MFCJ6510DW MFCJ6710DW MFCJ6910DW Removal and Installation of BHM11 Series Print Heads using the Leveller Roller System LRS installation jigs 1 Plug the power cord into an electrical outlet 2 Open the scanner cover scanner unit until it locks The Cover is Open message appears on the LCD 3 Hold down the Stop Exit key to move the head carriage unit to the center of its travel Scanner cover i Scanner unit Scanner cover support Head carnage unit NI l f Upper cover nN UA LT cover For models with paper tray 2 4 Unplug the power cord from the electrical outlet 5 Slightly close the scanner cover Scanner unit so that the scanner cover support comes to be almost upright As shown below press the rib of the section outwards in which the top of the scanner cover support is fitted in order to widen the section and pull out the boss provided on the top left of the support to the right and towards yOu Page 1 of 9 SERVICE UPDATE No _ F1323 MFCJ6510DW MFCJ6710DW MFCJ6910DW ADF amp document cover ASSY Scanner cover S Scanner umit NEYL HA w LA Rib i ISO Boss SS NT j j oe ae ba Ly ND i S 7 LYN 7 Ser DAN Fitting the boss_ LT cover while pressing Upper cover For models with paper tray 2 the nb outwards 6 Remove the CIS flat cable cover and the harness cover by ins2. ASSY out of the head carriage unit and put it on the upper cover in front of the head carriage unit Camiagze bead flat cable lt lt x Head cariage wut Comector A Carriage PCB ASSY a HTAA Y ESAE i I 3 ha e m i tn za Pi Upper COVET Camiage bead flat cable 12 Pull out the joint leaf spring to the right to release the head joint 13 Pull the head joint up and off the head carriage unit Immediately wrap the head joint in a clean lint free cloth and keep it higher than the ink supply tubes to prevent ink remaining in the ink supply tubes from leaking and the machine from getting stained with leaked ink Note Wipe off the ink remaining on the section where the head joint was mounted with a clean lint free cloth 14 Remove the head joint rubber that is a part of the head carriage unit but may come off with the head joint and put it on a clean vinyl sheet while taking care not to contaminate it Note Make sure that all of the four ink supply tubes are routed in front of the tube guide as shown Page 4 of 9 orotner at your side SERVICE UPDATE No MFCJ6510DW MFCJ6710DW MFCJ6910DW en Joint leaf spring vk ai o Ink supply tribes Head joint rubber 15 Move the head carriage unit slightly to the right as shown below then set the LR Leveller Roller positioning jig so that its bottom boss fits in the hole provided in the engine chassis 16 While p
3. the head carriage unit by hand to check that it moves smoothly If it does not move smoothly the leveller roller LR ASSY is not in place Go back to step 5 7 Remove the LR fitting jig and LR positioning jig 8 Untie the CR timing belt loosely tied First at the left end set the belt on the idle pulley Next press the idle pulley holder to the right and at the right end set the belt on the carriage motor pulley 9 Slide the head carriage unit by hand to check that it smoothly moves to the right and left ends of its travel 10 Set the head joint rubber on the head carriage unit and secure the head joint to the head carriage unit with the joint leaf spring 11 Mount the carriage PCB ASSY on the head carriage unit route the head flat cables through the cable guide and fit the hole provided in the film over the boss on the head carriage unit as shown below Make sure that the head carriage unit is secured with the lock spring 12 Connect the carriage head flat cable to the connector on the carriage PCB and then lock the connector 13 Set the head cover into place 14 If anew head carriage unit is mounted apply the specified lubricant to the specified points on the sliding surface of the CR guide rail and CR support chassis 15 Check that the CR encoder strip and PF encoder disk are free of grease and ink If they are stained with grease or ink replace them Page 8 of 9 orotner at your si d e SERVICE UPDATE No F13
4. 23 MFCJ6510DW MFCJ6710DW MFCJ6910DW 16 Slide the head carriage unit by hand to check that it smoothly moves to the right and left ends of its travel At the same time check that the ink supply tubes and head flat cables are not twisted 17 If anew head carriage unit is mounted make adjustments specified in section 4 1 of the Service Manual Page 9 of 9
5. erting the tip of a flat screwdriver into the slots indicated by arrows in the figure below and lifting up those covers For easier removal start from the rear and finally pull out the tabs CTS flat cable cower on Scanner wmit i LT cover For models with paper tay 2 7 Move the head carriage unit to the left end of its travel to the place where the whole of the head carriage unit can be seen by hand Page 2 of 9 SERVICE at your side UPDATE No F1323 MFCJ6510DW MFCJ6710DW MFCJ6910DW 8 Insert the tip of a flat screwdriver into the square hole provided in the head cover to release the latch in the direction of the arrow then release other three latches and lift up the head cover Square opening Latch__ Upper cover 9 Unlock the connector on the carriage PCB and disconnect the carriage head flat cable Note After disconnecting the flat cable check that it is not damaged at its end or short circuited When connecting the flat cable do not insert it at an angle After insertion check again that it is not at an angle and then lock the connector 10 Slightly pull up the front end of the carriage PCB to release the PCB from the lock spring take the head flat cables out of the cable guide on the head carriage unit then release the hole provided in the film from the boss Page 3 of 9 SERVICE UPDATE No _ F1323 MFCJ6510DW MFCJ6710DW MFCJ6910DW 11 Take the carriage PCB
6. ng belt from the head carriage unit 22 Press the rear ends of the leveller roller ASSY inwards and take them out through the two cut outs provided in the CR guide rail Assemble procedure 1 2 3 Set the leveller roller ASSY When mounting a new head carriage unit apply the specified lubricant to the specified points on the unit When mounting the CR timing belt insert it into the slit provided in the head carriage unit so that the toothed side faces inwards as shown below Make sure that the belt is fully inserted inside the latches First fit the front end of the head carriage unit over the CR support chassis and then set the rear end onto the CR guide rail Make sure that the hook provided on the bottom of the head carriage unit catches the front edge of the CR support chassis and the two rear bosses are fitted in the two cut outs in the CR guide rail Set the leveller roller LR fitting jig on the head carriage unit vertically and then tilt it towards you as shown below This pushes the LR fitting jig rearwards and upwards fitting the leveller roller LR ASSY over the head carriage unit Page 7 of 9 orotner SERVICE at your side UPDATE No F1323 MFCJ6510DW MFCJ6710DW MFCJ6910DW LR fitting jig E l g ea ees i _LRfitting jig eer Lx7243001 LR fitting jig Carnage head flat cable A w Head camage unit gt L Upper cover Leveler roller LR ASSY Eevi roller LR ASSY 6 Slide
7. ressing the idle pulley holder to the right remove the CR timing belt from the carriage motor pulley and the idle pulley Note When removing the CR timing belt do not touch the CR encoder strip or the lubrication area on the engine unit with your hands or with the CR timing belt Page 5 of 9 orotner SERVICE at your side UPDATE No F1323 MFCJ6510DW MFCJ6710DW MFCJ6910DW 17 Loosely tie the CR timing belt in a bundle on the head carriage unit 18 Move the head carriage unit to the left end of its travel by hand LR positioning jig Head carriage unit CR timing belt Upper cover 19 Press the right and left tabs of the leveller roller LR ASSY inwards to release the ASSY downwards from the head carriage unit Page 6 of 9 orotner at your si d e SERVICE UPDATE No F1323 MFCJ6510DW MFCJ6710DW MFCJ6910DW 20 Slightly lift up the rear end of the head carriage unit to release it from the CR guide rail through the two cut outs then release the front end from the CR support chassis and take the head carriage unit up and out of the machine Note Do not touch the head nozzles the printing ends or ink supply ports to which ink supply tubes are connected of the head carriage unit doing so will not only stain your hands with ink but also damage the nozzles and supply ports If you do touch them though clean them with a special purpose cleaning stick and liquid 21 Remove the CR timi
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