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1.  EA20 Paper Transport Stop Jam 

There are a couple of areas that should be looked at when EA20 jamming is occurring.   

  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 

 

Figure 1 

  Check the proper return operation of the buffer sensor (PI14). 

  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 solve 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. 

 

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) 

 

 

Paper buckled due to 
guide plate not being 
lowered by escape 
solenoid 

Summary of Contents for MJ-1027

Page 1: ...ary 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 ...

Page 2: ...Contents Contents 2 1 EA20 Paper Transport Stop Jam 3 2 CB30 Tray Lift Abnormality 3 3 CBEO Paper Folding Motor Abnormality 4 4 CB90 Paper Pushing Plate Motor Abnormality 5 5 Limitless Copies 6 6 CB80 without hole punch installed Backup RAM Data Abnormality 6 7 CB80 with hole punch installed Backup RAM Data Abnormality 6 8 Abnormal Noise when exit tray lowers 8 9 CB10 Feed Motor Abnormality 8 10 I...

Page 3: ... at the same time The reports state that replacing one motor does not solve 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 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 ...

Page 4: ...ates 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 CHANGI...

Page 5: ...e areas Figure 3 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 Check the condition of the cam assembly and that the spring is still attached see Figure 4 Also ensure that the bushings on bo...

Page 6: ...ollowing adjustments Tray Height Adjustment MJ1027 28 Service Manual page 6 1 Alignment Position MJ1027 28 Service Manual page 6 1 When replacing the finisher 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 Ad...

Page 7: ...7 Figure 5 MJ1017 18 Service Manual Page 8 7 ...

Page 8: ...tuator 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 PI4 11 Mis Stapling Check the paddles and make sure they are not worn Check that the Paddle Solenoid SL5 is working and that the paddles rotate duri...

Page 9: ...n Buffer Roller Winding Amount Height Sensor PS1 Height Sensor Adjustment EEPROM Q2 Buffer Roller Winding Amount Saddle Stitch Controller PCB Set the new DIPSW1 so that the settings will be the same as those on the old DIPSW1 Hole Punch Board Refer to item 7 END ...

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