Riso MZ 790 Making blank masters

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  • ccopy
    Technician

    50+ Posts
    • Aug 2008
    • 51

    #1

    Riso MZ 790 Making blank masters

    We have a newer generation MZ 790U, loaded the network and driver softwares on it but when we send a master to the machine, the master comes out blank.

    Any help?
  • cobiray
    Passing Duplication Xpert

    1,000+ Posts
    • Mar 2008
    • 1199

    #2
    Does the machine work properly whith the walk up functions? If not the master could be in backwards/upside down.
    the savin2535 is displaying well bet the hiter lamp is not shining and the lamp had been tested o.k.please kindly help.
    Samir: No, not again. I... why does it say paper jam when there is no paper jam? I swear to God, one of these days, I just kick this piece of shit out the window.
    Michael Bolton: You and me both, man. That thing is lucky I'm not armed.

    Comment

    • Joe Foe from Buffalo
      Trusted Tech
      • Feb 2009
      • 394

      #3
      Will it print a test pattern when in tech mode? Off the top of my head I think 118 will produce a checkered test pattern.

      Comment

      • ccopy
        Technician

        50+ Posts
        • Aug 2008
        • 51

        #4
        Yes, I can print a master from the glass and sometimes it will print from the computer thru the print controller but about 70% of the time it will print blank masters.

        Comment

        • cobiray
          Passing Duplication Xpert

          1,000+ Posts
          • Mar 2008
          • 1199

          #5
          I don't have any of these in the field, so all of this is basic trouble shooting or speculation on my part. Double check the connections between the print interface and the Riso. If it is a separate/stand alone print interface, check the cable for kinks and damage. Also check the cable connectors for bent or damaged pins.

          If it sometimes works and sometimes doesn't, it kinda rules out the firmware of the machine, but check to make sure it's the most current for the interface.
          the savin2535 is displaying well bet the hiter lamp is not shining and the lamp had been tested o.k.please kindly help.
          Samir: No, not again. I... why does it say paper jam when there is no paper jam? I swear to God, one of these days, I just kick this piece of shit out the window.
          Michael Bolton: You and me both, man. That thing is lucky I'm not armed.

          Comment

          • Baphomet
            Copier Technician

            250+ Posts
            • Aug 2008
            • 293

            #6
            If they are printing a secure PDF file it will print a blank page. I run across this with Riso technical manuals. When I want to print just one page, they come out blank because Risograph puts security on their PDF files.

            I ended up downloading a utility that strips PDF of any security so that now I can manipulate the PDF files and print them any way I want to.

            Don't know if this is your issue, but it is worth knowing.

            Comment

            • ccopy
              Technician

              50+ Posts
              • Aug 2008
              • 51

              #7
              Do you have the name of this utility?

              Comment

              • Baphomet
                Copier Technician

                250+ Posts
                • Aug 2008
                • 293

                #8
                Originally posted by ccopy
                Do you have the name of this utility?

                PDF password remover v3.0


                Check the private message I sent you.

                Comment

                • joelsa12
                  Trusted Tech

                  250+ Posts
                  • Nov 2008
                  • 260

                  #9
                  Blank Masters

                  If you are printing to this with a TCPIP port, It is recommened that you change the protocol to LPR, name the queue LP and set byte counting to enabled. I have had other machines do this. Not the MZ, but when I first started networking the RP series I woulld run into the same problem. Hope this helps.

                  Comment

                  • ccopy
                    Technician

                    50+ Posts
                    • Aug 2008
                    • 51

                    #10
                    Now we are getting a Network Communication is not Possible!!! Check Cable Connection.

                    Comment

                    • joelsa12
                      Trusted Tech

                      250+ Posts
                      • Nov 2008
                      • 260

                      #11
                      Hmmmmm!

                      There is not another NIC card on the network with the same IP address as the MZ?????? Unplug the MZ and ping the IP address and see if it still pings with it unplugged. If it does then I would guess you need a different IP address.

                      Comment

                      • joelsa12
                        Trusted Tech

                        250+ Posts
                        • Nov 2008
                        • 260

                        #12
                        I think I might have something!

                        Ccopy, I hate you for keeping me up at night I thought of this when I woke up at about 4 in the morning last night. By not having your machine in full auto mode and having it on manual this is what is happening. You must push start in order to make a new master. with The MZ-790 you first have to put the master on the color drum which is blank when only printing black copies. The machine always puts the color master on first then prints a sheet of paper. the master loading unit then moves over to the black drum to put the master on that one. the reason that it seems that it is always one master behind, is because it is. putting blank color master on then the putting the black master on. Try putting the machine in full auto mode. Press print and leave it alone. Like I said earlier. Blank color master, blank sheet of paper feeds out, then it will put on the black master and then it should feed the test copy with your image on it. Just try it and see what happens.

                        Comment

                        • ccopy
                          Technician

                          50+ Posts
                          • Aug 2008
                          • 51

                          #13
                          LOL sorry for keeping you up. I'll pass this on to David. It seems that this version of the MZ790 is a tad different than our original one. We'll try this out and we'll let you know.

                          One other thing while I got you on Some of the color drums we just received keep reading the ink tube is not installed when in fact it is and the tubes still have about 30% or so ink left in them. Thoughts?

                          Thank you very much for all your help.

                          Comment

                          • joelsa12
                            Trusted Tech

                            250+ Posts
                            • Nov 2008
                            • 260

                            #14
                            Ink Drums

                            The thing that takes the most ink out of a drum is making a master. Since you have been messing with it making master after master the ink in the drum is depleted. The ink motor runs for a certain ammount of time. If the ink sensor does not see ink in an ammount of time it reads that it is out of ink. Even though it is not. With the MZ having the RF tags on the end of each tube of ink the machine knows the number on the tube. It may not let you use that tube again. I am not sure. I would just take it out and put it back in. Run about 50 copies on the machine so it can fill the drum back up with ink. If it keeps coding right away, I would say to put a new tube in and the 30% is lost. Good luck!!!!

                            Comment

                            • ccopy
                              Technician

                              50+ Posts
                              • Aug 2008
                              • 51

                              #15
                              Ok, thanks a ton.

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