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AND the line up every time!! but its YMCK how nice!Comment
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**Knowledge is time consuming, exhausting and costly for a trained Tech.**
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Its really neat how they all line up every time, they never get it wrong.
for the desperate,
one idea comes to mind, years ago you could we used to "fill" the nick w/micro pin drop of clear nail polish let it dry
no print in the dot area but no dots.
$700 per drum stinks for a problem again Canon knows about.Comment
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it's always in an image area on Drum because of those Dam Coronas/
Lets get rid of them !!!!!!!!!!!!!
I will start working on it later
scarySEOscientist1.jpg**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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and they are a bad beer too! never liked them yup and Coors too!Comment
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Hey,
now yer gettin pickey with the Dots
What bugs me is the Arc that would cause thatComment
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It is what It is..Comment
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In some cases the high-current density provided by the corona charging device may cause damage to the photoconductor in places in which small pinholes or depressions exist in the photoconductive coating.
The irregularities in the photoconductive coating> give rise to strong local fields in the area of the photoconductive member surrounding the pinhole. These strong local fields cause the onset of a glow discharge which eventually results in electrical breakdown and arc-over to the corona wire. To significantly reduce the change of electrical breakdown in the corona charging unit, a suppressor screen is added between the corona wire and the photoconductive member and energized with a relatively low potential. The addition of the suppressor screen not only reduces the chance of arc-over, but also leads to a charge limiting effect so that the charge on the photoconductor is uniformly placed.
With the addition of the suppressor screen a somewhat different mode of operation can be used for the corona charging unit. By applying to the bias rods an intermediate level voltage, the corona wires can be operated at a higher voltage thereby operating at a greater efficiency due to the field gradient being greater between the corona wires and the photoconductive member.
Arc Voltage is that amount of voltage that exists on contacts separated by a small gap that will cause an
electric discharge across the gap.
Arc Current is that amount of current necessary to just sustain an arc caused by the arcvoltage
electric discharge.
Arcing can occur when a low resistance channel (foreign object, conductive dust, moisture...) forms between places with different potential. The conductive channel then can facilitate formation of an electric arc
Poor end block connections/ fingerprint oil smudges left on grid/post wire/ or side plates= A potential ARC Situation.
Blocked or Dirty Ozone filters can cause an ARC**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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How would that work on a C1 4 color?
Where did you find this?
I like the idea!
PComment
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don't think it will work on a photosensitive drum/ but u never know till u try
heard a rumor that a tech used it on a selenium drum nick, then used nail polish over it
don't think they work on printers anymore/
was moved to car/body shop repair
brightidea.jpg**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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Then we get out the Bondo and filler I am all for that.Comment
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Quick Question
The C1 is working fine except those dots.
I do not think its from the pre charge carona
Is there a setting on the HV and Grid to bring down.
were at 999 hv and 464 grid.
Any setting to bring down to stop this arc/ pitting?Comment
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