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HP ;aserjet 4

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MOP CAP

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Aug 26, 2017, 10:19:55 AM8/26/17
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I have an old one that only prints out a totally black page with just a
shadow of the intended image.
??? Is it the corotron and is it worth reparing? What is the corotron?
Thanks, CP

Jon Elson

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Aug 26, 2017, 6:35:39 PM8/26/17
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https://www.fixyourownprinter.com/

has been very helpful in debugging problems on my laser printers in the
past.

Jon
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