Strange problem with Ricoh mp7500

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  • m_donakov
    Trusted Tech

    100+ Posts
    • Jan 2010
    • 213
    #1

    [Jamming] Strange problem with Ricoh mp7500

    Hi all

    I have a weird problem with a ricoh mp7500 machine. There is no code but sometimes it will print 5,000 sheets without a problem but sometimes gets stuck on every second sheet and the copy is deformed. as you can see from the pictures.To continue working I must reset it with 107 off and on. Firmware update 2 days ago still has the same problem. as you can see the text is compacted and should be a4. Or sometimes the text is twisted. The same problem is encountered when printing and copying
    Please I appreciate your every opinion

    Thanks
    Mile DonakovSKM_C224e19110514180_0001.jpgSKM_C224e19110514180_0002.jpg
    Attached Files
    Tags: mile, mp7500, reset, ricoh
    • GIUBOSS
      Service Manager

      Site Contributor
      1,000+ Posts
      • Jul 2013
      • 1385
      #2
      Re: Strange problem with Ricoh mp7500

      do the tests with the door open ... check if the drum turns correctly. 107 generally restores fusing errors. Didn't you check anything inside the various units if everything is okay?

        Comment

        • m_donakov
          Trusted Tech

          100+ Posts
          • Jan 2010
          • 213
          #3
          Re: Strange problem with Ricoh mp7500

          Originally posted by GIUBOSS
          do the tests with the door open ... check if the drum turns correctly. 107 generally restores fusing errors. Didn't you check anything inside the various units if everything is okay?
          I think it's better with the door open, I haven't tested it but when I had a large print series I worked with the door open to have better cooling and I don't remember well but I think it was better. And what about the door? What can happen to the door to make trouble? Please advise me what to check in the Fusing Unit and on the drum unit, At first glance it looks like everything is fine


          Thanks

            Comment

            • m_donakov
              Trusted Tech

              100+ Posts
              • Jan 2010
              • 213
              #4
              Re: Strange problem with Ricoh mp7500

              It is very strange to me that after the problem the machine printед 500,000 pages Resetting it . Whatever it was mechanically it would break down completely. And no SC Code in SC history ?

              Thanks

                Comment

                • GIUBOSS
                  Service Manager

                  Site Contributor
                  1,000+ Posts
                  • Jul 2013
                  • 1385
                  #5
                  Re: Strange problem with Ricoh mp7500

                  working with the open door is not the solution but only to see inside the paper transport phases. It's just a case that it goes well. Can you control the PM parts like drum, blade, developer, fuser rollers how many pages did they do? How many total copies does it have?

                    Comment

                    • slimslob
                      Retired

                      Site Contributor
                      25,000+ Posts
                      • May 2013
                      • 37059
                      #6
                      Re: Strange problem with Ricoh mp7500

                      What are the PM counts, especially on the development unit. In your samples I am seeing signs of a dirty doctor blade, depleted developer and uneven developer distribution.

                        Comment

                        • m_donakov
                          Trusted Tech

                          100+ Posts
                          • Jan 2010
                          • 213
                          #7
                          Re: Strange problem with Ricoh mp7500

                          Originally posted by slimslob
                          What are the PM counts, especially on the development unit. In your samples I am seeing signs of a dirty doctor blade, depleted developer and uneven developer distribution.
                          Developer drum an drum blade Change before 100.000


                          Total 1.600 000 copies

                            Comment

                            • slimslob
                              Retired

                              Site Contributor
                              25,000+ Posts
                              • May 2013
                              • 37059
                              #8
                              Re: Strange problem with Ricoh mp7500

                              Originally posted by m_donakov
                              Developer drum an drum blade Change before 100.000


                              Total 1.600 000 copies
                              That is not what I asked. I asked about PM counter. If you do not know how to get the PM counters, you should not be working on the machine.

                                Comment

                                • m_donakov
                                  Trusted Tech

                                  100+ Posts
                                  • Jan 2010
                                  • 213
                                  #9
                                  Re: Strange problem with Ricoh mp7500

                                  Originally posted by slimslob
                                  That is not what I asked. I asked about PM counter. If you do not know how to get the PM counters, you should not be working on the machine.
                                  I can see pm counters but they arent real becouse they arent reseted when parts are changed. I write on paper all services that i do so drum drum blade charge corona and grid and developer are changed before 100000 copies. Fuser teflon and fingers are changed before 200 000 and stil looks fine. Transfer is checked swaped from working machine same problem. Firmware updated. Checked hard diak and everthing is ok. Tomorow i will test ram memory and dont know what to do else. Thanks

                                  Ps. Printer / scanner sd card is type 8000 i dont know if its ok that card on mp 7500 machine.or somebody before me change it

                                    Comment

                                    • KenB
                                      Geek Extraordinaire

                                      2,500+ Posts
                                      • Dec 2007
                                      • 3945
                                      #10
                                      Re: Strange problem with Ricoh mp7500

                                      How about clogged ozone filters, or a failing cooling fan?

                                      Bad airflow equates to excessive heat and static.

                                      That would explain why it performs better with the door open.

                                      Ozone filters tend to be a VERY overlooked maintenance item.
                                      “I think you should treat good friends like a fine wine. That’s why I keep mine locked up in the basement.” - Tim Hawkins

                                        Comment

                                        • GIUBOSS
                                          Service Manager

                                          Site Contributor
                                          1,000+ Posts
                                          • Jul 2013
                                          • 1385
                                          #11
                                          Re: Strange problem with Ricoh mp7500

                                          help you solve the problem I agree but if you don't know the machine you risk doing more trouble than repairing, explaining everything to you about repairing an mp7500 there are technical manuals. Trust me, I've experienced it on my skin too ...

                                            Comment

                                            • slimslob
                                              Retired

                                              Site Contributor
                                              25,000+ Posts
                                              • May 2013
                                              • 37059
                                              #12
                                              Re: Strange problem with Ricoh mp7500

                                              Since you have not been clearing the PM counters, you need to do a complete PM and then clear the counters.

                                              As for the SD card type, Ricoh uses the fastest model that the card can be used with as the type.

                                                Comment

                                                • Gary Bowen
                                                  Bowdog

                                                  250+ Posts
                                                  • Mar 2008
                                                  • 250
                                                  #13
                                                  Re: Strange problem with Ricoh mp7500

                                                  Just for the record the Type 8000 Print/Scan SD Card is unique to the D052 series only which is the MP 6000. The correct Print/Scan SD Card for the MP 7500 is G338 (which is the Type 1075).

                                                    Comment

                                                    • Lagonda
                                                      Service Manager

                                                      Site Contributor
                                                      1,000+ Posts
                                                      • Aug 2008
                                                      • 1649
                                                      #14
                                                      Re: Strange problem with Ricoh mp7500

                                                      I haven't seen these copiers for awhile but we used to get a problem with the screw that held the drive dog to the rear end of the drum shaft falling out. The shaft used to slip then grip causing random compressed lines across the copy.
                                                      At least 50% of IT is a solution looking for a problem.

                                                        Comment

                                                        • KonMan
                                                          Technician
                                                          • Mar 2010
                                                          • 15
                                                          #15
                                                          Re: Strange problem with Ricoh mp7500

                                                          Nu Finish car polish. Polish the drum. No more problems.

                                                          Sent from my SM-T378V using Tapatalk

                                                            Comment

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