Xerox 7328 Family Fuser Modules
Contents
1. Tools tab and then choose the following from left to right System Settings Common Service Settings and then in the right column scroll down and touch Maintenance Diagnostics Scroll down and touch the button for Adjustment Others Choose HFSI Counters High Frequency Service Items You ll be prompted for a Chain link number Enter 954 804 and press Confirm The current fuser count will show up Touch Reset Current Value followed by Reset Congratulations You ve given your fuser new life Page 6 of 6 Xerox and all of their model names amp numbers are trademarks of Xerox Corporation and are used here only as references Xerox is in no way affiliated with The Parts Drop2. The Parts Drop 201 387 7776 www partsdrop com The Parts PRO Xerox 7328 Family Fuser Modules Repairing and rebuilding the fusers for WorkCentre WC 7328 7335 7345 amp 7346 7228 7235 7245 Also revisiting the C32 amp C2128 versions of these fusers www partsdrop com 7328 Fuser Module The 7328 family of machines is the final group of models in the C32 style Many of the machines have shown up in the past couple of years in the aftermarket from off lease machines and such The fuser is a really good candidate for rebuilding Good parts are available the procedure is not too difficult and the fuser count 1s easy to reset from the control console The C32 style included a few groups of models which were released over a period of about a decade spanning from 2002 through 2012 The fusers in all of them are very similar to one another and the newest group is no exception The Fuser Heat Rollers and the Pressure Sleeves are the same for all of the models These parts were never spared by the OEM except as part of the complete fuser modules Fortunately good compatible parts are available nowadays making rebuilding a profitable choice Here s a list of the 4 versions of the fusers e C32 version 0O8R12904 126K13940 110 volts 008R12905 126K 14890 for 220 volt version For Models C32 40 DocuColor DC1632 C2240 C3535 amp WorkCenre M24 M32 40 Pro32 40 e C2128 version 00O8R12933 110
3. ames amp numbers are trademarks of Xerox Corporation and are used here only as references Xerox is in no way affiliated with The Parts Drop The Parts Drop 201 387 7776 www partsdrop com Measuring components pin outs e Main Fuser Heat Lamp thermostat pins 1 amp 12 Sub Fuser Heat Lamp thermostat pins 3 amp 12 Front Thermistor for C32 7328 or 7346 versions pins 4 amp 6 Front Thermistor for C2128 version pins 5 amp 6 Rear Thermistor for C32 7328 or 7346 versions pins 7 amp 9 Rear Thermistor for C2128 version pins 8 amp 9 Ruse 1 F1 on CRUM Board blows at 50 prints 7328 version only pins 8 amp 11 Fuse 2 F2 on CRUM Board blows at 50 days 7328 version only pins 5 amp 11 Ruse 3 F3 on CRUM Board blows at end of life 7328 version only pins 3 amp 11 Note The 7346 version s CRUM board has only one fuse For 7346 only the Fuser Reset Fuse F1 can be measured at pins 3 amp 11 No continuity will be found at pins 5 amp 11 and you d be measuring the indexing resistor if you measure between pins 8 amp 11 This procedure will apply to any of the 4 versions jag ES E PROCEDURE see Photo 1 for orientation Photo 1 Orientation which way is up j Remove the Front End cover which is held on by 2 screws One of them is hiding behind the green pressure tension relief lever See photo 2 The Green Handle releases tension f on the Pre
4. e padding and be careful not to damage the foam pad or wires under the tape Then put only one layer of tape over the thermistor s head and anchor it with another piece of tape going around the base in the opposite direction see Photo s 10 11 amp 12 10 Take off the Fuser Entrance Guide 2 short screws which have washers under them 11 Next you will remove the Stripper Plate Exit Pinch Roll Assembly Release the two springs which tension the Stripper Plate see Photo 13 and then pivot the Stripper Plate Exit Pinch Roll Assembly until it can be extracted from the metal shaft it pivots on see Photo 14 Now clean the edge of the Stripper Plate very gently The newer models have a thin Teflon like coating which is easily damaged on this kind you can use your fingernail to scrape the edge carefully You want to remove any residual fused toner while taking care not to damage the coating Older models had a metal plate without the coating and on that kind you can gently scrape with the blade of a flat head screwdriver 12 Take careful note of how far the Pressure Screws are screwed down to the frame you can either mark the screws or count threads exposed below the frame so you can return them to the Photo 15 Note how much of same pressure later when you reassemble the fuser see Photo the Pressure Screws are below 15 the frame by marking or 13 Now for the Pressure Sleeve Assembly Back out the two counti
5. est accomplished by disconnecting the 2 lamp terminals at the rear end and the 2 terminals at the front end Next remove the front heat lamp holder bracket 1 screw Now you can slide the two heat lamps out through the front end 8 Next you ll want to remove the Thermistor Thermostat Assembly Start by going to the rear of the fuser and disconnecting the white and blue thermistor connectors and the fuser lamp return connector the large white connector with the thick black wire See Photo 9 Remove the thermistor and lamp return wires from their wire guides on both the front and rear ends of the fuser Then remove 2 screws and the Thermistor Thermostat Assembly will come off for you Photo 9 Thermistor Connectors Press tape into corner gt and wrap it around the face ors Heads 9 Re tape the thermistor heads This is important because if the tape wears all the way through damage can happen to the thermistor and also to your new Heat Roller s surface You can use Kapton Tape or K250 1 2 inch width is good here It s important to remove the old tape very Page 4 of 6 Xerox and all of their model names amp numbers are trademarks of Xerox Corporation and are used here only as references Xerox is in no way affiliated with The Parts Drop The Parts Drop 201 387 7776 www partsdrop com carefully from the head of the thermistor Use a good sharp razorblade always cutting outward don t cut in towards th
6. neven or overly tight pressure can cause wrinkled copies while inadequate pressure can cause jams and poor fusing of the image Now let s look at how to reset the Fuser Count for each of the models FUSER COUNT RESET PROCEDURES C32 version 008R12904 126K 13940 110 volts 008R12905 126K 14890 for 220 volt version For Models C32 40 DocuColor DC1632 C2240 C3535 amp WorkCenre M24 M32 40 Pro32 40 Hold down the 9 and the AC buttons simultaneously Select Yes when the machine asks if you replaced the fuser C2128 version 008R12933 110 volts 008R12934 for 220 volt version For WorkCentre Pro or CopyCentre C2128 C2636 C3545 To get into User Tools mode Press the Access button Then use the default User Password 1111 4 ones and press Login Press More and then look for Supply Management Select the part who s counter you want to reset and follow the prompts itll ask you if you replaced the part touch Yes 7328 version 008R13040 110 volts 008R13028 for 220 volt version For WorkCentre 7228 7235 7245 7328 7335 7345 OR 7346 version 008R13055 110 volts OO8R13056 for 220 volt version For WorkCentre 7346 only First enter diagnostic mode CE Mode Hold 0 for at least 10 seconds then press Start at the password prompt enter 6789 followed by Confirm Now press the Machine Status button Choose the
7. ng threads pressure tower screws carefully and remove them Next pivot the Pressure Sleeve Assembly up and off It might prove helpful later 1f you first study how the pressure sleeve assembly s metal tension arms pivot on metal studs and also how the pressure sleeve assembly sits into the tension arms 14 Replace the Pressure Sleeve if it s damaged Note that the pressure sleeves often look wrinkled or twisted after only a short time in use and this is not always a signal that the sleeve is bad Make sure there is adequate lubrication inside the sleeve The recommendation is to put a small amount of high temperature grease on the plastic parts which contact the inside of the sleeve avoid getting too much grease on the pressure pad portion of the assembly 15 With the pressure off you can now easily remove the Fuser Photo 15 7328 CRUM Board Heat Roller by removing the Retaining Clips from either end of Page 5 of 6 Xerox and all of their model names amp numbers are trademarks of Xerox Corporation and are used here only as references Xerox is in no way affiliated with The Parts Drop The Parts Drop 201 387 7776 www partsdrop com the Heat Roller Check the Fuser Drive Gear for wear and the Heat Roll Bearings to make sure they re not seized up Install a new Fuser Heat Roller 16 Reassemble it all Pay special attention to the pressure screws return them to the same position they were in before you removed them U
8. reset the fuser count from the control console Installing fuses would only be necessary if you needed the fuser to automatically reset Page l of 6 Xerox and all of their model names amp numbers are trademarks of Xerox Corporation and are used here only as references Xerox is in no way affiliated with The Parts Drop The Parts Drop 201 387 7776 www partsdrop com the fuser count for a customer in your absence the way a brand new fuser would The model 7346 version is unique because it has only 1 fuse on the CRUM board a blank spot and an indexing resistor instead of 3 fuses Knowing the pin out of the large Main Connector on these fusers is helpful in checking the Fuser Lamp circuits amp the Thermistors without needing to disassemble anything You should have a low resistance path through either of the two heat lamp circuits If one lamp circuit measures good and the other measures open then you know that lamp is bad If both lamp circuits are measuring open then most likely the fuser overheated and the Thermostat will need to be replaced Thermistors can be measured by setting the meter to 100K ohms then if you warm up the face of the thermistor with your fingers you should see the resistance start to drop For C32 version and Also C2128 version Pin 1 Main Heat Lamp to red connector Pin 2 blank Pin 3 Sub Heat Lamp to blue connector Pin 4 Front Thermistor purple wire to white connector blank for C2128
9. ssure Sleeve Assy and the also held on by 2 screws When you remove it you Il see there is quite a bit of wiring squished in behind the cover Take a note of how it all fits in there It will help you later when you go to put this cover back on See photo 3 Remove the Exit Baffle from the top of the fuser 2 screws see Photo 4 ee CEEA Remove the Exit Pinch Roll Baffle which is found the front end cover near the top of the fuser 2 screws see Photo 4 Photo 2 Removing the Front End Cover Photo 3 Rear Wiring 7346 shown Photo 4 Removing Baffles Page 3 of 6 Xerox and all of their model names amp numbers are trademarks of Xerox Corporation and are used here only as references Xerox is in no way affiliated with The Parts Drop The Parts Drop 201 387 7776 www partsdrop com 5 Remove the Inner Cover by turning the fuser so that the Inner Cover is facing upwards and removing 2 screws see Photo 6 6 Flip the fuser over again and remove the Outer Cover You ll need to remove 2 screws see Outer Cover Photo 7 Outer Cover 2 screws Photo 7 remove the rubber caps from the Pressure Tower Screws at either end of the fuser and pop the cover off of the frame near the Pressure Tower Screws at either end see Photo 8 then it will lift up and off with a little jiggling 7 7 Now that the fuser is pretty well stripped down it s 7 i high time to remove the 2 Fuser Heat Lamps This is y b
10. version Pin 5 blank OR for C2128 version Front Thermistor purple wire to white connector Pin 6 Front Thermistor yellow wire to wht connector Pin 7 Rear Thermistor purple wire to blue connector OR blank for C2128 version Pin 8 blank OR for C2128 version Rear i Thermistor purple wire to blue connector Pin out Main Connector 7328 shown Pin 9 Rear Thermistor yellow wire to blue connector Pin 10 Ground Strap green wire to ground lug on the fuser frame Pin 11 blank Pin 12 Return Wire for both heat lamps black wire coming from thermostat For 7328 version and Also 7346 version Pin 1 Main Heat Lamp to red connector Pin 2 Fuse 3 F3 OR Fuse 1 on 7346 only on CRUM board yellow wire Pin 3 Sub Heat Lamp to blue connector Pin 4 Front Thermistor purple wire to white connector Pin 5 Fuse 2 F2 OR goes to nothing on 7346 only on CRUM board yellow wire Pin 6 Front Thermistor yellow wire to white connector Pin 7 Rear Thermistor purple wire to blue connector Pin 8 Fuse 1 F1 OR to Indexing Resistor on 7346 only on CRUM board yellow wire Pin 9 Rear Thermistor yellow wire goes to the blue connector Pin 10 Ground Strap green wire to ground lug on the fuser frame Pin 11 Ground return from CRUM board gray wire Pin 12 Return Wire for both heat lamps black wire coming from thermostat Page 2 of 6 Xerox and all of their model n
11. volts 008R12934 for 220 volt version For WorkCentre Pro or CopyCentre C2128 C2636 C3545 e 7328 version 0D08R13040 110 volts 008R13028 for 220 volt version For WorkCentre 7228 7235 7245 7328 7335 7345 e 7346 version 008R13055 110 volts Q08R13056 for 220 volt version For WorkCentre 7346 only The DC1632 Service Manual gives an estimated yield of 100K pages for the fuser History tells us this is not always true and machines which run a lot of heavy papers don t even come close to that number Other literature including the Service Manuals for the other models neglect to give a stated yield on the fusers Almost all of the fusers use the same pair of Fuser Heat Lamps The only exception is the 7346 fuser which has a double lamp instead of a pair of separate lamps For all but the 7346 you ll find a Main Heat Lamp which has a red connector and a Sub Heat Lamp which has a blue connector at the rear end The only really significant changes have been in the way the main connector is wired and in that the 7328 7335 7345 fusers have 3 pico fuses on them which allow a machine to recognize when a new module is installed The fuses were absent from the predecessor models versions of the fusers The fuses are found on a tiny CRUM Board CRUM Customer Replaceable Unit Monitor inside the rear of the fuser It seemed at first that soldering on new fuses would be necessary but as it turns out you can
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