Results 1 to 7 of 7
  1. #1
    Service Manager 1,000+ Posts
    MFC-8950w with " print unable 7a"


    Join Date
    Aug 2007
    Location
    Brooklyn
    Posts
    1,239
    Rep Power
    35

    Thumbs up MFC-8950w with " print unable 7a"

    Had 2 mfc-8950dw in my shop. One worked and one had no power.
    Swapped LVPS from good machine
    and got 2nd machine to work.

    Ordered LVPS from Brother and installed into machine which was originally working. Now have "print unable 7A" message. Double checked connectors and okay.

    Your help is appreciated very much. Frank/ Action


  2. #2
    Junior Member
    Join Date
    Jan 2018
    Location
    Merced
    Posts
    1
    Rep Power
    0

    Re: MFC-8950w with " print unable 7a"

    I think you have error code 7A00
    1- connection failure main motor harness
    2-main motor failure
    3-main pcb failure

    I would double check the connections and reseat every connector


  3. #3
    Service Manager 1,000+ Posts
    MFC-8950w with " print unable 7a"


    Join Date
    Aug 2007
    Location
    Brooklyn
    Posts
    1,239
    Rep Power
    35

    Thumbs up Re: MFC-8950w with " print unable 7a"

    Thank you for yor input VBC. I did not see 00 after the 7A unless I need the pesos something to get a sub coe. I did carefully check the 2 connectors for the LVPS.. The one on the left is hard to work with as Brother did not leave any play but it is connected good. Those were the only connectors I disconnected when removing and installing LVPS. I will check again to be sure. and make sure nothing is stressing motor. Frank


  4. #4
    Service Manager 2,500+ Posts
    MFC-8950w with " print unable 7a"

    Phil B.'s Avatar
    Join Date
    Jul 2016
    Location
    Raleigh NC
    Posts
    2,695
    Rep Power
    41

    Re: MFC-8950w with " print unable 7a"

    Quote Originally Posted by axyun View Post
    Thank you for yor input VBC. I did not see 00 after the 7A unless I need the pesos something to get a sub coe. I did carefully check the 2 connectors for the LVPS.. The one on the left is hard to work with as Brother did not leave any play but it is connected good. Those were the only connectors I disconnected when removing and installing LVPS. I will check again to be sure. and make sure nothing is stressing motor. Frank
    double check the connectors on the other boards.. you might have knocked one loose


  5. #5
    Service Manager 1,000+ Posts
    MFC-8950w with " print unable 7a"


    Join Date
    Aug 2007
    Location
    Brooklyn
    Posts
    1,239
    Rep Power
    35

    Thumbs up Re: MFC-8950w with " print unable 7a"

    thanks Phil


  6. #6
    Junior Member
    Join Date
    Apr 2014
    Posts
    3
    Rep Power
    0

    Re: MFC-8950w with " print unable 7a"

    Symptom: Machine has "Print Unable 7A" on the display.
    Possible cause: Synchronized signal of the main motor cannot be detected.

    Recommendation: Replace parts in the listed order.

    1. Main Motor
    2. Main PCBSteps for Main Motor Replacement
    *or check connectors*


  7. #7
    Service Manager 1,000+ Posts
    MFC-8950w with " print unable 7a"


    Join Date
    Aug 2007
    Location
    Brooklyn
    Posts
    1,239
    Rep Power
    35

    Thumbs up Re: MFC-8950w with " print unable 7a"

    I removed and reconnected connectors and machine is working now. Thanks to all. Frank


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Get the Android App
click or scan for the Copytechnet Mobile App

-=-=-=-=-=-


IDrive Remote Backup

Lunarpages Internet Solutions

Advertise on Copytechnet

Your Link Here