BH C454e - Scanned Image Issue

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  • D Colour
    Trusted Tech

    Site Contributor
    100+ Posts
    • Oct 2008
    • 213
    #1

    [CQ] BH C454e - Scanned Image Issue

    Hi

    Have a strange issue on a C454e were it is putting a dotted line on scans. It happens on scans through the dual scan DF (tried dual scan board and another DF) and on the glass, single sided and duplex originals.

    Fault does not occur on copies through DF or on glass. Prints are also fine. So its not optics or consumables.

    Scan Sample2.pdf
    Scan Sample.pdf

    Dots look digital and run edge to edge, portrait or landscape.

    The problem seems to be related to grayscale only. It does not occur when you scan in black or in colour. Have set machine up to default scan in colour for now.

    Tried scanning in as PDF, compact pdf, jpeg and tiff. All have the dots.

    Ran self diagnostic in service with no faults showing.

    What could be adding these dots onto the digital image in grayscale (and why!)? Faulty memory or HD?

    Running the latest standard firmware at G20-M1.

    Thanks for any help!
    Everything that has a beginning, has an end.....
    Tags: c454, dots, edge, image, scan
    • tsbservice
      Field tech

      Site Contributor
      5,000+ Posts
      • May 2007
      • 7977
      #2
      Re: BH C454e - Scanned Image Issue

      What if you disconnect DF and its board and scan of the glass(DF is only like original cover)?
      Maybe I will make HDD logical format if problem persists.
      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

        • copyman
          Owner / Technician

          Site Contributor
          2,500+ Posts
          • Sep 2005
          • 4624
          #3
          Re: BH C454e - Scanned Image Issue

          Originally posted by D Colour
          Hi

          Have a strange issue on a C454e were it is putting a dotted line on scans. It happens on scans through the dual scan DF (tried dual scan board and another DF) and on the glass, single sided and duplex originals.

          Fault does not occur on copies through DF or on glass. Prints are also fine. So its not optics or consumables.

          [ATTACH]53467[/ATTACH]
          [ATTACH]53468[/ATTACH]

          Dots look digital and run edge to edge, portrait or landscape.

          The problem seems to be related to grayscale only. It does not occur when you scan in black or in colour. Have set machine up to default scan in colour for now.

          Tried scanning in as PDF, compact pdf, jpeg and tiff. All have the dots.

          Ran self diagnostic in service with no faults showing.

          What could be adding these dots onto the digital image in grayscale (and why!)? Faulty memory or HD?

          Running the latest standard firmware at G20-M1.

          Thanks for any help!
          Just when I thought I saw it all! Really weird the dots are perfectly spaced apart like. Only thing different when scanning is doc feeder runs faster. Perhaps something with the CCD unit & scanning?

          Sorry wish I could be more help.

            Comment

            • femaster
              Service Manager

              1,000+ Posts
              • May 2011
              • 1482
              #4
              Re: BH C454e - Scanned Image Issue

              Not really sure what might be causing that, but try running a scan at 200dpi and one at 600dpi through the ADF. The ADF will run faster at 200dpi and slower at 600dpi. See in the spacing between the dots is different at each speed.
              A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
              My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

                Comment

                • copier tech
                  Field Supervisor

                  5,000+ Posts
                  • Jan 2014
                  • 8132
                  #5
                  Re: BH C454e - Scanned Image Issue

                  Originally posted by D Colour
                  Hi

                  Have a strange issue on a C454e were it is putting a dotted line on scans. It happens on scans through the dual scan DF (tried dual scan board and another DF) and on the glass, single sided and duplex originals.

                  Fault does not occur on copies through DF or on glass. Prints are also fine. So its not optics or consumables.

                  [ATTACH]53467[/ATTACH]
                  [ATTACH]53468[/ATTACH]

                  Dots look digital and run edge to edge, portrait or landscape.

                  The problem seems to be related to grayscale only. It does not occur when you scan in black or in colour. Have set machine up to default scan in colour for now.

                  Tried scanning in as PDF, compact pdf, jpeg and tiff. All have the dots.

                  Ran self diagnostic in service with no faults showing.

                  What could be adding these dots onto the digital image in grayscale (and why!)? Faulty memory or HD?

                  Running the latest standard firmware at G20-M1.

                  Thanks for any help!
                  Dude this document has your clients mobile number, email & site address. I would take this down ASAP & use another document!.
                  Let us eat, drink, and be merry, because tomorrow we may die!

                  For all your firmware & service manual needs please visit us at:

                  www.copierfirmware.co.uk - www.printerfirmware.co.uk
                  ​

                    Comment

                    • copyman
                      Owner / Technician

                      Site Contributor
                      2,500+ Posts
                      • Sep 2005
                      • 4624
                      #6
                      Re: BH C454e - Scanned Image Issue

                      Originally posted by copier tech
                      Dude this document has your clients mobile number, email & site address. I would take this down ASAP & use another document!.
                      I was thinking that too but not really any critical information. Free advertising! All that information can be found publicly or on a business card.

                        Comment

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