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Thread: KM BH4050

  1. #1
    Senior Tech 100+ Posts
    KM BH4050


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    KM BH4050

    I have never sold or worked on one of these as this is a new customer that called for a jam code 242.01 and no paper is present. I ran a piece of mylar up through the front paper path right above the first cassette but and all seems clear so I assuming its one of the sensors. I'm logged on to the Konica's One Stop for the service manual but its not listed under documents for either the 4020 or the 4050 series? If someone has the manual they could email me or direct me to the page on the KM site that would be appreciated.

  2. #2
    Service Manager 5,000+ Posts tsbservice's Avatar
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    Re: KM BH4050

    Quote Originally Posted by scanmc View Post
    I have never sold or worked on one of these as this is a new customer that called for a jam code 242.01 and no paper is present. I ran a piece of mylar up through the front paper path right above the first cassette but and all seems clear so I assuming its one of the sensors. I'm logged on to the Konica's One Stop for the service manual but its not listed under documents for either the 4020 or the 4050 series? If someone has the manual they could email me or direct me to the page on the KM site that would be appreciated.
    I can provide manual first thing morning. How many trays it has. This is not KM but Lexmark engine most KM techs hate them including me but they can be dogs.
    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.

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  3. #3
    Certified Konica Expert 2,500+ Posts
    KM BH4050

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    Re: KM BH4050

    PM sent.

    242.01 Paper over tray 2 Pass through sensor on warmup

    Restart the printer.
    Does it fail to complete the POST sequence and
    display a 242.01 error?
    Replace the option tray. Go to step 2.
    2 Enter the Service Mode and perform a paper
    passage test:
    Select [Service Mode] -> [State Confirmation] ->
    [Paper Passage Test] -> [Tray 2], and touch Start
    key.
    Cancel the test after five pages.
    Does the printer successfully feed the five pages into
    the output bin?
    The problem is solved. Go to step 3.
    3 Does the printer display a 242.06 error? Replace the ACM assembly. Go to step 4.
    4 Check the pick roller assembly.
    Is it free of wear or damage?
    Go to step 5. Replace the pick roller assembly.
    5 Check the separator roll assembly.
    Is it free of wear or damage?
    Go to step 6. Replace the separator roll assembly.
    6 Check the tray guides, lift plate, and lift plate gears.
    Are they free of wear or damage?
    Go to step 7. Replace the tray insert.
    7 Check the ACM assembly.
    Is it free of wear or damage?
    Go to step 8. Replace the ACM assembly.
    8 Enter the Service Mode and perform a paper passage
    test:
    Select [Service Mode] -> [State Confirmation] ->
    [Paper Passage Test] -> [Tray 2], and touch Start key.
    Does the pick/lift motor gearbox pass the test?
    Go to step 9. Replace the option tray.
    9 Does the error remain? Contact the next level of support. The problem is solved.
    Link to the wiring diagram (N.1. bizhub 4750/4050)
    We know a thing or two because we've seen a thing or two.
    Also don't ask me for files without a contributor badge.

  4. #4
    Service Manager 1,000+ Posts Gift's Avatar
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    Re: KM BH4050

    I can't recall specific any details but one time I had a prob with an actuator and several other times I needed to install the modified (green) feed rollers.

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