SP C840DN banding in feed direction

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • wyo19
    Technician
    • Nov 2012
    • 51
    #1

    [CQ] SP C840DN banding in feed direction

    I have a C840DN that has a magenta banding issue, meter is 4 k c8,800 replaced the magenta pcdu and still has the problem. Service call is 600 miles round trip, so hoping to some idea on what to bring. I'm thinking a laser unit, IPU or CB power pack. the size is 12x18 and banding is front to back paper feed direction.
    Attached Files
    Tags: banding, c840dn, direction, feed, magenta
    • HitMan
      Trusted Tech

      100+ Posts
      • Aug 2015
      • 170
      #2
      Re: SP C840DN banding in feed direction

      Looks like a yellow banding issue?

      Sent from my SM-G988B using Tapatalk

        Comment

        • slimslob
          Retired

          Site Contributor
          25,000+ Posts
          • May 2013
          • 36694
          #3
          Re: SP C840DN banding in feed direction

          You say you replaced the pcdu but what do you mean by that? Did you replace just the Drum unit (PCU)? Was it brand new Genuine Ricoh from Ricoh? Did you replace the developer with genuine Ricoh? Those voids look like toner clumps clogging the doctor blade gap. Are you using after market toner?

            Comment

            • wyo19
              Technician
              • Nov 2012
              • 51
              #4
              Re: SP C840DN banding in feed direction

              Originally posted by slimslob
              You say you replaced the pcdu but what do you mean by that? Did you replace just the Drum unit (PCU)? Was it brand new Genuine Ricoh from Ricoh? Did you replace the developer with genuine Ricoh? Those voids look like toner clumps clogging the doctor blade gap. Are you using after market toner?
              New ricoh drum/development unit assembly we only use oem toner. based on the low meter I might look into your clumping theory...

                Comment

                • slimslob
                  Retired

                  Site Contributor
                  25,000+ Posts
                  • May 2013
                  • 36694
                  #5
                  Re: SP C840DN banding in feed direction

                  Originally posted by wyo19
                  New ricoh drum/development unit assembly we only use oem toner. based on the low meter I might look into your clumping theory...
                  FYI, OEM and Genuine Ricoh are not the same. Which do you use.

                    Comment

                    • luca72
                      Field Supervisor

                      1,000+ Posts
                      • Oct 2017
                      • 1673
                      #6
                      Re: SP C840DN banding in feed direction

                      Originally posted by wyo19
                      I have a C840DN that has a magenta banding issue, meter is 4 k c8,800 replaced the magenta pcdu and still has the problem. Service call is 600 miles round trip, so hoping to some idea on what to bring. I'm thinking a laser unit, IPU or CB power pack. the size is 12x18 and banding is front to back paper feed direction.
                      can you post the service pm status?.....so we see the situation more clearly.

                      sercvice pm.jpg
                      "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

                        Comment

                        • GIUBOSS
                          Service Manager

                          Site Contributor
                          1,000+ Posts
                          • Jul 2013
                          • 1382
                          #7
                          Re: SP C840DN banding in feed direction

                          Originally posted by wyo19
                          I have a C840DN that has a magenta banding issue, meter is 4 k c8,800 replaced the magenta pcdu and still has the problem. Service call is 600 miles round trip, so hoping to some idea on what to bring. I'm thinking a laser unit, IPU or CB power pack. the size is 12x18 and banding is front to back paper feed direction.
                          Have you tried inserting the blue stick into the holes under the pcdu M several times??

                            Comment

                            • Gift
                              Service Manager

                              1,000+ Posts
                              • Mar 2011
                              • 2444
                              #8
                              Re: SP C840DN banding in feed direction

                              Yup that's DV cloggage and/or a dirty laser glass @magenta.

                              If the lines appear at the same postition after swapping the complete PCDU that was quite an expensive way to figure out that this is a dirty laser

                              If the lines are moving around or re-appeared short time after swapping the complete PCDU you might deal with clogged toner from the toner bottle, I've seen this every now and then, probably a result of improper storage conditions - usually afer exposing spare toners in direct sun light at the window sill. In this case you have to vac out everything as good as possible, swap the toner, run ~100 high coverage magenta pages and finally swap the dev unit or PCDU again.

                                Comment

                                Previous template Next
                                Working...