MJ-1027/1028 Service Manual Addendum
Contents
1. TOSHIBA MJ 1027 1028 Service Manual Addendum Supplement to the Troubleshooting Section Copyright 2008 Toshiba America Business Solutions Inc TABS This publication contains proprietary and confidential information retained for reference purpose by authorized TABS dealers Unauthorized use of this information is prohibited TABS makes no express or implied warranty including implied warranties of merchantability for a particular purpose with regard to this technical publication and disclaims any claim arising by reason of the possession or use thereof Overview This is a collection of troubleshooting hints that TABS has received during our dealer visits communication that we have had from technicians and information from TABS Technical Specialists This list is not exhaustive and as usual the Service Manual should always be used as a reference Contents COS carci ne caeiwienet E ods eny ens eieg ios es teioratesn snd a ens een einen ieionec onside ye recurs cenit de EA20 Paper Transport Stop daMe E EN 2 CBSO Tray Li AiO FY secere EE A EEEE N A 3 CBEO Paper Folding Motor Abnormality sosssesssenseseenssreesssrrressrrresrrressreresreressrerssreressreessreressrereseerese 4 CB9O Paper Pushing Plate Motor Abnormality cccccccsssccccessececeesececceecceeeusececseneceeseneceessesecesseneses S ac 118 ick CODOS oana E A 6 CB80 without hole punch installed Backup RAM Data Abnormallity cccccccccsss2. e the problem and that both need to be replaced at the same time 2 CB30 Tray Lift Abnormality There are a couple of causes of CB30 one is intermittent and the other is constant e Intermittent It has been noted in the field that an intermittent CB30 bin lift motor error may occur it usually occurs when the lower bin is driving The cause is linked to the tie wraps on the harness being too tight see Figure 2 Over time with the bins moving up and down damage occurs to the harness resulting in this error As deemed necessary remove the cable ties However if the wires have already been damaged you may need to replace the harness upper part number 4G30851000 lower part number 4G30852000 CABLE TRAY Figure 2 e Constant o Check the tray lift motor s M5 M10 part number 4K11102000 MOTOR DC o Check the torque limiter see item 8 Abnormal Noise when exit tray lowers 3 CBEO Paper Folding Motor Abnormality CBEO relates to a folding motor abnormality It has been determined that the folding motor itself can be at fault If replacing the folding motor part number 6LE67820000 MOTOR does not resolve the problem the faulty motor could have damaged the saddle stitch control board part number 4G30849000 SADDLE CONT PCB ASY in this instance the board must also be replaced CAUTION NEVER REPLACE THE BOARD BEFORE CHANGING THE MOTOR 4 CB90 Paper Pushing Plate Motor Abnormality CB90 refers to the pusher p
3. een replaced 1 Remove the rear cover of the finisher unit 2 Set bits 1 through 6 of DIPSW3 on the fin isher controller PCB as indicated Seve Figure 8 118 3 Set bits 7 and 8 on DIPSW3 on the fin isher controller PCB to match the number of punch holes of the attached puncher unit according to Table 8 103 4 Press SW1 on the finisher controller PCB Press SW2 when setting a 2 3 hole model MJ 6003N Pressing this switch registers the number of punch holes to the punch driver PCB DIPSWS3 bit push switch mi7 bite MJ 6003E 2 3 hole OFF OFF SW2 MI 6003N om on sw2 MJ 6003S Table 8 103 Number of Punch Holes 2 hole 5 Set all bits on DIPSW3 to OFF 3 Checking the sensitivity level of the transmission sensor How dirty the transmission sensor photosensor PCB LED PCB can be checked by the number of times that LED1 on the fin isher controller PCB lights For this reason how dirty the transmission sensor is serves as a guide for when to perform cleaning during periodic maintenance 1 Remove the rear cover of the finisher unit 2 Set bits 1 through 6 of DIPSW3 on the fin isher controller PCB as indicated AQUMUAUL Lgs 45 6 FB Figure 8 119 Figure 5 MJ1017 18 Service Manual Page 8 7 8 Abnormal Noise when exit tray lowers Sometimes when the paper exit tray lowers an abnormal noise can occur To prevent the noise the grease in the torque limiter has been chan
4. ged See the diagram below to distinguish the new torque limiter from the old one Before Change After Change MODEL P A Before Change After Change 7 13 8 13 FC56862000 4A30736000 LIMITER TORQUE LIMITER TORQUE MJ 1027 MJ 1028 9 CB10 Feed Motor Abnormality When this error occurs check the following items e One way bearing located inside the cam shutter part number 4402350530 CAM SHUTTER This may slip causing the error code Clean replace as needed e Safety Switch MS3 The spring may not push hard enough on the actuator reform the switch arm to make good contact 10 Intermittent Stapling Perform Alignment Position adjustment MJ1027 28 SM page 6 1 If the alignment is too tight this may produce a buckle lifting the center of the paper off the stapling tray sensor P14 11 Mis Stapling e Check the paddles and make sure they are not worn e Check that the Paddle Solenoid SL5 is working and that the paddles rotate during every copy 12 Adjustments that must be done when boards are replaced When replacing boards and some sensors there are certain adjustments that must be done The adjustments can be found in Chapter 6 of the SM Finisher Controller PCB e Height Sensor Adjustment e Alignment Position e Staple Position e Buffer Roller Winding Amount Height Sensor PS1 e Height Sensor Adjustment EEPROM Q2 e Buffer Roller Winding Amount Saddle Stitch Controller PCB e Set the new DIPSW1 s
5. her logic board there are adjustments that must be performed otherwise a CB80 error may occur see item 13 for a list 7 CB80 with hole punch installed Backup RAM Data Abnormality In addition to the items listed in 6 above perform Sensor Output Adjustment and Registering the Number of Holes Adjustment The MJ1027 28 29 Service Manual does not list these adjustments the adjustments are listed in the MJ1017 18 Service Manual page 8 7 see Figure 5 The following adjustments should be run when changing the hole punch board or replacing any of the sensors in the hole punch unit en CHAPTERS TROUBLESHOOTING E C Electrical System puncher unit option 1 Sensor output adjustment Perform this adjustment when the punch driver PCB transmission sensor photosensor PCB LED PCB or reflection sensor scrap full detection PCB unit has been replaced 1 Remove the rear cover of the finisher unit 2 Set bits 1 through 6 of DIPSW3 on the fin isher controller PCB as indicated AAPUORMOL 123 4 amp 6 7f 8 Figure 8 117 3 Press SW1 on the finisher controller PCB Pressing this switch automatically adjusts sensor output 4 Set all bits on DIPS W3 to OFF 2 Registering the number of punch holes This operation registers which puncher unit is attached to the IC on the punch driver PCB so that the puncher unit can be identified by the finisher For this reason this operation must be performed when the punch driver PCB has b
6. late part number 4402353400 PLATE on the saddle stitch and there can be various Causes e Check the condition of the pusher plate see Figure 3 it should be completely flat with no kinks or bends in the lead edge castle areas Figure 3 e Clean and check the pusher plate home sensor PI15S do not exchange sensors in these finishers as they are not the same see Figure 4 If you suspect the sensor is at fault order and fit the correct sensor PI15S Cam Assembly and Spring Bushings Front Figure 4 e Check the condition of the cam assembly and that the spring is still attached see Figure 4 Also ensure that the bushings on both sides of the pusher plate assembly are in good condition and not elongated see Figure 4 5 Limitless Copies Limitless means the finisher recognizes the height of the stack rather than the number of sets To make this modification set dip switch 5 to the ON position If you make this modification advise the end user of two things 1 If many sheets are stacked it is possible that the stacks may fall from the exit tray 2 The paper may not stack properly in the finisher tray 6 CB80 without hole punch installed Backup RAM Data Abnormality If the machine is exhibiting CB80 without a hole punch installed perform the following adjustments e Tray Height Adjustment MJ1027 28 Service Manual page 6 1 e Alignment Position MJ1027 28 Service Manual page 6 1 When replacing the finis
7. o that the settings will be the same as those on the old DIPSW1 Hole Punch Board e Refer to item 7 END
8. seeceeeeeeseeeeeeeeeees 7 CB80 with hole punch installed Backup RAM Data Abnormality cccscccccccssseecceseeseeceeseeeeeeees 8 Abnormal Noise when exit tray lOWESS ccsccccsssecccceseccceeesececeusecceeeeecceseesecessuneceseeeeceeteesecetsenecetseges 9 CB10 Feed Motor Abnormality esssseesenseseenssseenssrrresrrerssrrrssrreressrressreresererssreresererssreresererssrereserersseerese 10 EEEE AEE a E E E A E E A A E E E ET 11 Me SU OUND e a E E N 12 Adjustments that must be done when boards are replaced ccccccsssececeessceeceeseceeeeneceseeeeceesenes 1 EA20 Paper Transport Stop Jam There are a couple of areas that should be looked at when EA20 jamming is occurring e Check for proper operation of Escape Solenoid SL6 part number 4402962760 SOLENOID If the Escape Solenoid does not operate properly then an EA20 jam could occur see Figure 1 The items to check for include o Binding of linkage o Sticking of plunger o Defective solenoid AN WW Y t Wia Ve Paper buckled due to guide plate not being lowered by escape solenoid Figure 1 e Check the proper return operation of the buffer sensor PI14 e We have had reports that either the first M1 or second M8 feed motors part number 6LE67833000 MOTR S FEED could fail The reports from the field are that both motors need to be replaced at the same time The reports state that replacing one motor does not solv
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