Toshiba MJ-1028 Service Manual Addendum
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Toshiba MJ-1028 Service Manual Addendum

Toshiba MJ-1028 Service Manual Addendum

Supplement to the troubleshooting section
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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.
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  • Page 1 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...

  • Page 2: Table Of Contents

    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.

  • Page 3: Ea20 Paper Transport Stop Jam

    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).

  • Page 4: Cbeo Paper Folding Motor Abnormality

    Figure 2 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 CBE0 relates to a folding motor abnormality. It has been determined that the folding motor itself can be at fault.

  • Page 5: Cb90 Paper Pushing Plate Motor Abnormality

    4. CB90 Paper Pushing Plate Motor Abnormality CB90 refers to the pusher plate (part number: 4402353400 PLATE) on the saddle stitch and there can be various causes. 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’...

  • Page 6: Limitless Copies

    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.
  • Page 7 Figure 5 – MJ1017/18 Service Manual, Page 8-7...

  • Page 8: Abnormal Noise When Exit Tray Lowers

    MODEL Before Change After Change MJ-1027 7-13 FC56862000 4A30736000 MJ-1028 8-13 LIMITER- TORQUE LIMITER-TORQUE 9. CB10 Feed Motor Abnormality When this error occurs check the following items: One-way bearing located inside the cam shutter (part number 4402350530 CAM- SHUTTER). This may slip causing the error code. Clean/replace as needed.
  • Page 9 Height Sensor Adjustment Alignment Position Staple Position 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.

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