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  1. #21
    Service Manager 10,000+ Posts
    Samsung CLX-6260FW printer prints blank pages.. most of the time

    Phil B.'s Avatar
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    Re: Samsung CLX-6260FW printer prints blank pages.. most of the time

    Quote Originally Posted by tsbservice View Post
    Thanks brother for this as always thorough explanation.
    I think Crowfeather reply was truly respectful and in perfect unison with what this site and members here may deserve and expect so I liked it
    By all means his post was appropriate, I made the mistake of replying to him instead of the OP.
    I was lazy. I should have copied, deleted, and replied to the OP, I hope I didn't offend.

    Sent from my SM-G960U using Tapatalk

  2. #22
    Service Manager 2,500+ Posts tsbservice's Avatar
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    Re: Samsung CLX-6260FW printer prints blank pages.. most of the time

    Quote Originally Posted by Phil B. View Post
    By all means his post was appropriate, I made the mistake of replying to him instead of the OP.
    I was lazy. I should have copied, deleted, and replied to the OP, I hope I didn't offend.

    Sent from my SM-G960U using Tapatalk
    No worries, no offense taken Phil. Plus I'm sure you're not lazy at all
    Just wanted to give him credit he deserves for his posts(not only this one).
    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.

  3. #23
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    Re: Samsung CLX-6260FW printer prints blank pages.. most of the time

    Quote Originally Posted by Crowfeather View Post
    If you get an error message after replacing the board, about incompatible toners, you'll need to reset the machine and change the default country to the relevant one.
    The board arrived, it is alive and I do have an error "toner not compatible".
    I reset the machine and it seems it works...
    But the original problem is still there.
    Copy one page and that's it.
    So I need to dig deeper into LSU unit.
    Last edited by Bojan2S; 04-01-2021 at 08:21 AM.

  4. #24
    Printer firmware is !&$! 50+ Posts
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    Re: Samsung CLX-6260FW printer prints blank pages.. most of the time

    Quote Originally Posted by Bojan2S View Post
    The board arrived, it is alive and I do have an error "toner not compatible".
    I reset the machine and it seems it works...
    But the original problem is still there.
    Copy one page and that's it.
    So I need to dig deeper into LSU unit.
    I think you're probably better off just buying the cable and if the cable doesn't work then buying the LSU as an assembly. The cost of a new LSU is like 60 and no one is going to be selling sub-assy parts on it.

  5. #25
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    Re: Samsung CLX-6260FW printer prints blank pages.. most of the time

    Quote Originally Posted by Crowfeather View Post
    I think you're probably better off just buying the cable and if the cable doesn't work then buying the LSU as an assembly. The cost of a new LSU is like 60 and no one is going to be selling sub-assy parts on it.
    Yes.. this appears to be the next step... Cable is high density 0.5mm pitch.. but I will have a look the other end first, in case something else is obvious.
    I found seller in US (LSU is for U$$ 68.00, not sure how much is for postage, probably arm and leg..)

  6. #26
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    Re: Samsung CLX-6260FW printer prints blank pages.. most of the time

    In the meantime, I stumbled on another problem - printer doesn't start, all that's happening are clicks from speaker every 3-4 seconds.
    This happened before once or twice, but after couple of 10s of seconds the printer started normally so I forgot about it.
    I put in the old Main board (which was proved to be working OK), the problem remained..
    The waveform below is from CON3, yellow wire (pin 1, lowest). Service manual says there should be 5V there.. and it's continuous when I disconnect the load (Main board connector).
    c_141.jpg
    Does anybody have SMPS schematic?
    Service manual also mentions Connector 4 on SMPS, connected to CN19 on main board with cable where the 24V should be switched ON.
    c_142.jpg

    Thanks in advance!
    Bojan
    Last edited by Bojan2S; 06-12-2021 at 08:21 AM. Reason: More info

  7. #27
    Master Of The Obvious 10,000+ Posts
    Samsung CLX-6260FW printer prints blank pages.. most of the time

    blackcat4866's Avatar
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    Re: Samsung CLX-6260FW printer prints blank pages.. most of the time

    I haven't worked on this particular Samsung ... or any Samsungs in the last 10 years.

    Typically HVT troubles manifest as:
    Black or single color background, caused by lack of primary charge.
    Bars in the crossfeed direction caused by varying developer bias.
    Light images for black or a single color color caused by lack of transfer voltage.
    On many machines that use spring contacts you can experience any/all of these same faults because of a poor spring connection.

    Blank images are most often caused by the laser unit or the board that performs the image processing.
    Last edited by blackcat4866; 06-12-2021 at 09:42 PM.
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  8. #28
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    Re: Samsung CLX-6260FW printer prints blank pages.. most of the time

    I loaded 5V output of SMPS with 6 Ohms (0.83 A).. and this is the result, similar to the situation when the whole printer system is connected.
    c_143.jpg

    SMPS is definitely faulty, it is supposed to deliver <3.5 A (17W).

    Then I removed SMPS board from printer, and on the first inspection it was obvious the two caps on the below picture were swollen..
    c_144.jpg

    After caps are replaced, SMPS is OK (loaded with 2 A, no voltage ripples)
    Last edited by Bojan2S; 06-13-2021 at 01:37 AM. Reason: More info

  9. #29
    Master Of The Obvious 10,000+ Posts
    Samsung CLX-6260FW printer prints blank pages.. most of the time

    blackcat4866's Avatar
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    Re: Samsung CLX-6260FW printer prints blank pages.. most of the time

    Good catch. =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  10. #30
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    Re: Samsung CLX-6260FW printer prints blank pages.. most of the time

    This printer is falling apart..
    Now I have another problem "Scanner is locked"
    I must have done something wrong when assembling.. When I press "Stop" button, scanner moves to the right for ~5 cm and stops.. with the same error. Now it is at the right limit, and it doesn't move to left any more

    EDIT: Post corrected.. In original I swapped left and right (sometimes I am prone to errors like this).
    Last edited by Bojan2S; 06-13-2021 at 04:48 AM.

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