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  1. #11
    Vacuum Cleaning Expert 1,000+ Posts iMind's Avatar
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    Quote Originally Posted by zyqwiz View Post
    Went to switch on SP5-056 on our own MPC4500 and it was already on!

    Doesn't show anything though.
    He said SP5061-001 displays icon on LCD.
    We can all Win, but at the end we all loose. Save the greyhound

  2. #12
    Service Manager 250+ Posts zyqwiz's Avatar
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    Quote Originally Posted by iMind View Post
    He said SP5061-001 displays icon on LCD.
    I know what SP5-061 does - I'm talking about the 2 people that mentioned SP5-056 to display coverage.

  3. #13
    Senior Tech 100+ Posts
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    I use SP 8851 - 8881 to find out how many copies were made within each coverage percentage, then input them in Excel and calculate an average. Works every time!
    Peace sells, but who's buying?

  4. #14
    Major Asshole! 2,500+ Posts
    Toner Coverage (Average, %)

    mrwho's Avatar
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    Could we take a look at that excel formula of yours?
    ' "But the salesman said . . ." The salesman's an asshole!'
    Mascan42

    'You will always find some Eskimo ready to instruct the Congolese on how to cope with heat waves.'

    Ibid

    I'm just an ex-tech lurking around and spreading disinformation!

  5. #15
    E Winter
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    no need for excel and stuff^^

    use the data of 8-921, here's the example for black:

    SP8921-1 : SP8921-14 = average coverage per page
    so it's basicly just:
    (coverage color "x" total) : (pages color "x" total) = average coverage per page

  6. #16
    Senior Tech 100+ Posts
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    Oh sorry I didn't see the reply...
    The formula I use is as follows:

    The number of pages for the first coverage range * coverage (see example 1) + number of pages for the second coverage range * coverage + next and so on. Divide the sum with the sum of total number of pages, that gives you a "high" average.

    Example 1

    This is what the machine log displays:
    Coverage 0-2%: 5000 pages
    Coverage 3-5%: 15000 pages
    Coverage 6-10%: 6000 pages
    Coverage 11-20%: 2000 pages
    Coverage 21- < : 1000 pages

    (5000 * 2 = 10000) + (15000 * 5 = 75000) + (6000 * 10 = 60000) + (2000 * 20 = 40000) + (1000 * 21 = 21000) = 206000

    206000 / total of 29000 pages = 7,10%


    Now 7,10% is pretty high since we're using the highest percentage in the range, i.e. 6000 * 10 instead of 6, 7, 8 or 9 which is in the same range. This is a worst-case-scenario number. To bring justice into the equation, you need to calculate the lowest possible number as well, which then becomes example 2:

    (5000 * 1 = 5000) + (15000 * 3 = 45000) + (6000 * 6 = 36000) + (2000 * 11 = 22000) + (1000 * 21 = 21000) = 129000

    129000 / total of 29000 pages = 4,45%.
    Then add the two numbers together (7,10 + 4,45 = 11,55) and divide in 2 and you've got yourself 5,775% coverage, which is probably pretty close to the truth.

    Hope that's mathematic enough for ya
    Peace sells, but who's buying?

  7. #17
    Major Asshole! 2,500+ Posts
    Toner Coverage (Average, %)

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    /me head hurts

    Okay, I took note of that. Thanks a lot!
    ' "But the salesman said . . ." The salesman's an asshole!'
    Mascan42

    'You will always find some Eskimo ready to instruct the Congolese on how to cope with heat waves.'

    Ibid

    I'm just an ex-tech lurking around and spreading disinformation!

  8. #18
    E Winter
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    like I said - it doesn't need to be that sketchy and complicated - just take a look at sp 8-921

    you can calculate all values with your cellphone calculator within 2 minutes even if you dropped school after the third grade

  9. #19
    Senior Tech 100+ Posts
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    Quote Originally Posted by Jan Sommer View Post
    like I said - it doesn't need to be that sketchy and complicated - just take a look at sp 8-921

    you can calculate all values with your cellphone calculator within 2 minutes even if you dropped school after the third grade
    I've seen that too, but never trust a machine to do a mans job No really, there are actually 3 ways of doing this to be precise. Your way, 8-921, but also 8-601 and mine, 8-861. The results vary a little though, this is an example from our showroom MPC2800:


    BK Y M C
    8-921 4,34% 4,54% 5,28% 7,85%
    8-601 3,70% COLOR=23,23%
    8-861 4,43% 4,69% 5,41% 7,05%


    It seems your way and mine are fairly close to each other Jan Yours might even be even more precise, I must admit, because of the way the machine counts. Rather than within a range like in my example, it shows a total. Great!

    So everyone knows it - Use 8-921 for average toner coverage. Divide the sum of the total percentage with the number of pages for that color and you're done! Thanks Jan!
    Peace sells, but who's buying?

  10. #20
    E Winter
    Guest
    cheers

    at first I've tried to calculate this more complicated as well

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