Toshiba e-studio 457 fusing problem

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • fairynarga
    Junior Member
    • Feb 2019
    • 5
    #1

    Toshiba e-studio 457 fusing problem

    Hello, first time posting a question here, this forum helped me a lot but this time I cannot find any answer.

    I have 2 toshiba e-studio 457 with the same problem, can't fuse toner properly, I mean, when i touch the printed page toner goes off and can feel the text under my finger.

    Tried to search the manual for a troubleshooting and common problem on this but didn't find anything.
    Tried replacing parts, pressure roller, hot roller, thermistors without success.

    I don't know what to do or if it is a common problem and I'm missing something.

    Forgive my bad english and if any other info is needed i'll try to reply as fast as i can.
    Thank you so much!
    Tags: common, find, roller, toner
    • SalesServiceGuy
      Field Supervisor

      Site Contributor
      5,000+ Posts
      • Dec 2009
      • 7902
      #2
      Re: Toshiba e-studio 457 fusing problem

      What is the meter read on the copier? Definitely sounds like the Developer material is worn out and needs to be replaced.

        Comment

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 22743
          #3
          Re: Toshiba e-studio 457 fusing problem

          I have many questions:

          Like SalesServiceGuy suggests, if the image is gray or very light, the image on the paper may be formed by developer, not toner. Developer is a light gray color, a little finer than sand and won't fuse at 180C.

          You say you re-built the fuser, and I'm going to assume that you're not getting fuser codes because you would say so. Even if the fuser is at the proper temperature, you still need several other things for the toner to fuse:
          1) Even Pressure all the way across the heat roller: you must have pressure from the pressure roller, or it won't fuse.
          2) Media Settings: If you're using 300gsm media or glossy media, and the machine is still set to Plain media type the image won't fuse. The fuser will not get hot enough for heavy media, and it won't slow down the process enough for the image to fuse.

          =^..^=
          If you'd like a serious answer to your request:
          1) demonstrate that you've read the manual
          2) demonstrate that you made some attempt to fix it.
          3) if you're going to ask about jams include the jam code.
          4) if you're going to ask about an error code include the error code.
          5) You are the person onsite. Only you can make observations.

          blackcat: Master Of The Obvious =^..^=

            Comment

            • tsbservice
              Field tech

              Site Contributor
              5,000+ Posts
              • May 2007
              • 7697
              #4
              Re: Toshiba e-studio 457 fusing problem

              First and most important do you use original toner?
              If no good luck with that.
              If answer is yes and developer is within life I would try to rise fuser temp by 10 degrees.
              However if that settles your toner fixing problem your fuser life may be negatively affected...
              A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
              Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                Comment

                • Blizzoo
                  Senior Tech

                  Site Contributor
                  500+ Posts
                  • Aug 2013
                  • 588
                  #5
                  Re: Toshiba e-studio 457 fusing problem

                  Is the Fuser Unit housing intact on both machines? They tend to crack where the screws (two screws in total) keeps together the pressure and the 'hot' roller units that forms the entire fuser unit. I used to improvise until new housing is replaced. The pressure roller metal arm should have 3 holes in it where you can adjust the pressure by inserting the pressure spring in a different hole - on both sides same time.
                  Defects are simple, our mind is complicated

                    Comment

                    • blackcat4866
                      Master Of The Obvious

                      Site Contributor
                      10,000+ Posts
                      • Jul 2007
                      • 22743
                      #6
                      Re: Toshiba e-studio 457 fusing problem

                      Originally posted by Blizzoo
                      Is the Fuser Unit housing intact on both machines? They tend to crack where the screws (two screws in total) keeps together the pressure and the 'hot' roller units that forms the entire fuser unit. I used to improvise until new housing is replaced. The pressure roller metal arm should have 3 holes in it where you can adjust the pressure by inserting the pressure spring in a different hole - on both sides same time.
                      It's not my most elegant MacGuyver, but 100% effective, and lasted as long as I needed it to. As these Loires near extinction it will get harder to get frames:

                      Background_Poor Fusing view1.jpgView_3_reduced.jpg

                      NOTE: There is not enough gap behind the fuser at the rear to wrap the coathanger around the frame, so it J-hooks into a drilled hole. Just be careful where you drill. There are lamps, wires, bearings ... all things that that work better if there were no extra holes in them. =^..^=
                      Attached Files
                      If you'd like a serious answer to your request:
                      1) demonstrate that you've read the manual
                      2) demonstrate that you made some attempt to fix it.
                      3) if you're going to ask about jams include the jam code.
                      4) if you're going to ask about an error code include the error code.
                      5) You are the person onsite. Only you can make observations.

                      blackcat: Master Of The Obvious =^..^=

                        Comment

                        • fairynarga
                          Junior Member
                          • Feb 2019
                          • 5
                          #7
                          Re: Toshiba e-studio 457 fusing problem

                          First of all thank you so much for the answers!
                          Like you guessed i can see the developer can be worn out, got those machines with already some copies on them and I haven't replaced developer yet

                          What is the meter read on the copier? Definitely sounds like the Developer material is worn out and needs to be replaced.
                          250k and 360k, I bet they passed PM by a lot, but like I said before, I supposed previous tecnichan got them in good shape before handling to me

                          You say you re-built the fuser, and I'm going to assume that you're not getting fuser codes because you would say so. Even if the fuser is at the proper temperature, you still need several other things for the toner to fuse:
                          1) Even Pressure all the way across the heat roller: you must have pressure from the pressure roller, or it won't fuse.
                          2) Media Settings: If you're using 300gsm media or glossy media, and the machine is still set to Plain media type the image won't fuse. The fuser will not get hot enough for heavy media, and it won't slow down the process enough for the image to fuse.
                          1) Pressure is ok, like your last post i saw a lot of those and sometimes repaired with a paper clip and 2 holes, it worked for me, but this was not the case
                          2) Printing on normal paper, customer don't use any other type of paper, just 75g or 80g when feeling fancy

                          First and most important do you use original toner?
                          Legit question, but i've already seen hell with ricoh and kyocera using compatible toner, I will never use that.


                          I will try replacing developer in the next day and leave un update when done.

                            Comment

                            • fairynarga
                              Junior Member
                              • Feb 2019
                              • 5
                              #8
                              Re: Toshiba e-studio 457 fusing problem

                              I wrote a post yesterday but seems it didn't make it

                              Thank you all for the answer I will try in these days replacing the developer

                                Comment

                                • fairynarga
                                  Junior Member
                                  • Feb 2019
                                  • 5
                                  #9
                                  Re: Toshiba e-studio 457 fusing problem

                                  Quick update.

                                  Today I replaced the developer, worked perfectly.

                                  Again, thank you so much for your support!

                                    Comment

                                    • tsbservice
                                      Field tech

                                      Site Contributor
                                      5,000+ Posts
                                      • May 2007
                                      • 7697
                                      #10
                                      Re: Toshiba e-studio 457 fusing problem

                                      Originally posted by fairynarga
                                      Quick update.

                                      Today I replaced the developer, worked perfectly.

                                      Again, thank you so much for your support!
                                      Thanks for coming again and your feedback
                                      A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
                                      Blessed are they who can laugh at themselves, for they shall never cease to be amused.

                                        Comment

                                        Previous template Next
                                        Working...