IR5055 strange problem

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  • cetverooki
    Technician

    50+ Posts
    • Nov 2010
    • 53
    #1

    IR5055 strange problem

    Hi to all

    I have unit that is in working condition, it powers on, gets to ready state and it can stay in ready state for ages. If i start copy it is ok for first couple of pages (more like 15 to 20 pages). After that unit just shuts down, to be exact lcd is out and back-light but power on led on front panel is working. only way to get machine from this state is to shut it down using switch and then turn it on again. After that it gets to ready state, but if i try to get it to make copy it shuts down again.
    I suspect that fan is shorting out but can not figure out which one (i have disconnected fan on fusing assy but copier still shut down).
    Oh and one more thing, no error is recorded and no jam is recorded even if machine has paper stuck inside.

    Did someone encountered this problem?
    Tags: ir5055, no error, occurring, shutdown
    • copymech
      Trusted Tech

      100+ Posts
      • Sep 2011
      • 196
      #2
      Re: IR5055 strange problem

      Ive had similar problems in past. Once it was a laser pulling down dc power, the other had a short (pinched wire) in fuser. Neither of these were in a 5055. (ir600)

        Comment

        • mramlawi
          Senior Tech

          500+ Posts
          • Jul 2011
          • 838
          #3
          Re: IR5055 strange problem

          Hello

          try to clean the Ram's and then turn the machine on and try ,it happens some times it be MFC Problem just clean it .


          waiting ur reply
          Distinguished road makes you jewel in rough

            Comment

            • cetverooki
              Technician

              50+ Posts
              • Nov 2010
              • 53
              #4
              Re: IR5055 strange problem

              To add to my misery...

              I have reseated and cleaned contacts for memory and boot rom. HDD on this unit has failed after numerous on/off round by customer ( HDD replaced and system loaded). During flashing of system unit was on (at least couple of hours) and performed without any problem.
              Only when unit starts to make multiple copies (i.e. 10 copies of 6 page document) that copier shuts down. I can make one copy at time but as soon as temperature gets to certain point (and copy or print process is running) that copier shuts down. If I turn it off and then on (immediately) unit gets to ready state, and if i try to make copy it scans, pulls paper from below and shuts down.
              All of this is pointing to fan that is not checked at start-up, gets activated when fuser gets to high temperature. I can find which one is making problems...

              It seams that I will have to get one fan from other machine and then test each fan with substitute.

                Comment

                • vigour
                  Service Manager

                  1,000+ Posts
                  • Aug 2010
                  • 1038
                  #5
                  Re: IR5055 strange problem

                  Check your timing diagram.
                  The fans have E804 codes with subcodes for each fan.
                  If you find a fan without a sub code then check that first.
                  The one that fails most is on the power supply. There is no part number for it. Officialy you need to change the power supply, when that fan dies.
                  You can take the panels off and watch it stop and start.
                  Sometimes cleaning the dust and a drop of oil works for it.

                    Comment

                    • charm5496
                      Service Manager

                      Site Contributor
                      1,000+ Posts
                      • Apr 2008
                      • 2387
                      #6
                      Re: IR5055 strange problem

                      so if you leave the machine plugged in and 'ON' and do not make any copies the machine will not power cycle at all?
                      If left alone does the machine cycle itself or does it stay in this state of blank screen with green light on?
                      Have you measured any voltages when the machine goes into this state?
                      Have you checked the wire ties going to the DC power supply? They are known to be too tight and can cause issues.

                      you are going to have to do some troubleshooting by measuring voltages on both your DC and main controllers.
                      Accidents don't just happen. They must be carelessly planned.

                        Comment

                        • zoraldinho
                          teacher-guide-expert-guru

                          Site Contributor
                          5,000+ Posts
                          • Mar 2008
                          • 5007
                          #7
                          Re: IR5055 strange problem

                          Originally posted by cetverooki
                          To add to my misery...

                          I have reseated and cleaned contacts for memory and boot rom. HDD on this unit has failed after numerous on/off round by customer ( HDD replaced and system loaded). During flashing of system unit was on (at least couple of hours) and performed without any problem.
                          Only when unit starts to make multiple copies (i.e. 10 copies of 6 page document) that copier shuts down. I can make one copy at time but as soon as temperature gets to certain point (and copy or print process is running) that copier shuts down. If I turn it off and then on (immediately) unit gets to ready state, and if i try to make copy it scans, pulls paper from below and shuts down.
                          All of this is pointing to fan that is not checked at start-up, gets activated when fuser gets to high temperature. I can find which one is making problems...

                          It seams that I will have to get one fan from other machine and then test each fan with substitute.

                          The machine's DC power supply PCB and the power supply PCB for its accessories are equipped with overcurrent and overvoltage protective functions that will
                          cut off power to prevent damage to circuitry in the event of an overcurrent or overvoltage occurring as a result of a short circuit or other fault.
                          A fault in 3VB (uninterruptive power supply) will cut off all power of the machine; on the other hand, a fault in any other power supply will cut off all power to
                          loads other than 3VB (uninterruptive power supply).

                          To be shore what is going on with the temperature,when copier printing go to service mode:ANALOG and inspect temp rising.
                          Like Charm say
                          use service manual and check voltage.And Vigour is wright about E804 codes.
                          Last edited by zoraldinho; 12-28-2011, 05:15 PM.
                          If it ain't broke, don't fix it
                          A picture is worth a thousand words

                            Comment

                            • Rachid.Akli
                              Senior Tech

                              500+ Posts
                              • Oct 2011
                              • 595
                              #8
                              Re: IR5055 strange problem

                              My best wishes to all this forum members for a very prosperous and a peacefull 2012.


                              I understood that the machine works well with single prints. Notice that some fans have two different speeds: Full speed (24V) and half speed (12V) depending on the print process. The machine shuts down, because of an eventual short circuit or heavy load in the 24 volts output either on the DC Controller or on the DC power suplly PCBs.
                              Attached Files
                              "Find a job you love and you’ll never have to work a day in your life." Nagy's father

                                Comment

                                • Chameleon
                                  Trusted Tech

                                  100+ Posts
                                  • Nov 2011
                                  • 200
                                  #9
                                  Re: IR5055 strange problem

                                  I will go along with mramlawi, probably something with the RAM. Try replacing the RAM. Bad RAM can also over time corrupt info on the HDD. I had a brand new ir5020 with the same symptoms, stay ready for hours, small runs of say 15 or less would go fine, anything more would cause a shutdown, no errors in the history it just shutdown. Replacing the RAM fixed it.
                                  The chance that higher life forms might have emerged in this way is comparable to the chance that a tornado sweeping through a junkyard might assemble a Boeing 747 from the materials therein. -Fred Hoyle

                                    Comment

                                    • blazebusiness
                                      SanDiegoCopierRepair.com

                                      Site Contributor
                                      1,000+ Posts
                                      • Apr 2010
                                      • 1250
                                      #10
                                      Re: IR5055 strange problem

                                      I'm with charm & zoraldino on this one.....you should start with measuring voltages.....probably power supply or dc xtroller. Lets us now what fixes it. Good luck.
                                      sigpicAnything can be made to work if you fiddle with it long enough- San Diego Copier Repair.com

                                        Comment

                                        • charm5496
                                          Service Manager

                                          Site Contributor
                                          1,000+ Posts
                                          • Apr 2008
                                          • 2387
                                          #11
                                          Re: IR5055 strange problem

                                          Originally posted by Chameleon
                                          I will go along with mramlawi, probably something with the RAM. Try replacing the RAM. Bad RAM can also over time corrupt info on the HDD. I had a brand new ir5020 with the same symptoms, stay ready for hours, small runs of say 15 or less would go fine, anything more would cause a shutdown, no errors in the history it just shutdown. Replacing the RAM fixed it.
                                          usually when you have a RAM or boot ROM issue the machine will not boot up at all.

                                          In the posters case the machine comes to ready and then works for a short period of time and then goes into this mode which usually means the copier is losing DC voltage somewhere along the line.
                                          Accidents don't just happen. They must be carelessly planned.

                                            Comment

                                            • mramlawi
                                              Senior Tech

                                              500+ Posts
                                              • Jul 2011
                                              • 838
                                              #12
                                              Re: IR5055 strange problem

                                              Originally posted by charm5496
                                              usually when you have a RAM or boot ROM issue the machine will not boot up at all.

                                              In the posters case the machine comes to ready and then works for a short period of time and then goes into this mode which usually means the copier is losing DC voltage somewhere along the line.

                                              Charm I agree you in ur analyzing but iam telling you that its Ram Problem cos it happen with me the same thing in a different machine ,the machine was ready and when i sent a print copy it turns off the same problem occurs here.

                                              waiting for the Poster Reply
                                              Distinguished road makes you jewel in rough

                                                Comment

                                                • Chameleon
                                                  Trusted Tech

                                                  100+ Posts
                                                  • Nov 2011
                                                  • 200
                                                  #13
                                                  Re: IR5055 strange problem

                                                  Same here, I wasn't suggesting not checking the fans or voltages during operation, just another part to try before going for the $$$ power supply.

                                                  And it did sound exactly like the issue I had with a ir5020, not that I have ever seen it since.
                                                  The chance that higher life forms might have emerged in this way is comparable to the chance that a tornado sweeping through a junkyard might assemble a Boeing 747 from the materials therein. -Fred Hoyle

                                                    Comment

                                                    • cetverooki
                                                      Technician

                                                      50+ Posts
                                                      • Nov 2010
                                                      • 53
                                                      #14
                                                      Re: IR5055 strange problem

                                                      Hi to all and thx.

                                                      First of all to clear out this mess. Unit works fine and can print numerous copies, until (according to what i can see) fuser and/or whole unit gets hot (or to certain temperature). Then unit shuts down, only power on led is working.
                                                      If i push unit with numerous startups and shutdowns with attempts to copy, it will start to shutdown even when it is doing nothing (sitting idle).

                                                      Due to new year and end of financial year i did not have time to go to customer and to perform additional tests. I will be there next week. I will inform about progress.

                                                        Comment

                                                        • cetverooki
                                                          Technician

                                                          50+ Posts
                                                          • Nov 2010
                                                          • 53
                                                          #15
                                                          Re: IR5055 strange problem

                                                          one update.

                                                          today I have run some more tests. I have tried checking all that was mentioned here but problem persisted.
                                                          Then i tried to copy but used bypass tray. unit went thru 50 pages without any problems. Now I need to find what is different between print from tray and from bypass. There is one motor that pushes paper from tray but it is not used when printing from bypass (m17). Now i need to find another one and test this.

                                                            Comment

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