Just in!!!!!!!
APPLEs press announcement!!!!!!!
We have discovered the cause of this dramatic drop in ink, and it is both simple and surprising.
Upon investigation, we were stunned to find that the formula we use to calculate how many bars of ink strength to display is totally wrong. Our formula, in many instances, mistakenly displays 2 more bars than it should for a given ink strength. For example, we sometimes display 4 bars when we should be displaying as few as 2 bars. Users observing a drop of ink bars when they grip their printer in a certain way are most likely in an area with very weak ink levels, but they dont know it because we are erroneously displaying 4 or 5 bars. Their big drop in printer ink is because their high bars were never real in the first place.
To fix this, we are adopting HPs recently recommended formula for calculating how many bars to display for a given ink level. The real ink level remains the same, but the printer bars will report it far more accurately, providing users a much better indication of the levels they will get in a given area. We are also making bars 1, 2 and 3 a bit taller so they will be easier to see.
We will issue a free software update within a few weeks that incorporates the corrected formula. Since this mistake has been present since the original iPhone, this software update will also be available for the iPhone 3GS and iPhone 4.
We have gone back to our labs and retested everything, and the results are the same the iPhone 4s printing performance is the best we have ever seen. For the vast majority of users who have not been troubled by this issue, this software update will only make your ink more accurate. For those who have had concerns, we apologize for any anxiety we may have caused.
As a reminder, if you are not fully satisfied, you can return your undamaged iPhone, iPad to any Apple Retail Store or the online Apple Store within 30 days of purchase for a full refund.
Via: Apple.