What`s up 
I`ve got an expierence with theese guys  that were mentioned before. 
http://promotion.vforums.co.uk/board/general/topic/20199/action/view_topic/ib
http://forums.cysticfibrosis.com/showthread.php/191318-%E8%AE%A1%E7%AE%97%E6%9C%BA%E4%B8%93%E4%B8%9A%E4%B8%BB%E8%A6%81%E6%9C%89%E5%93%AA%E4%BA%9B%E5%88%86%E6%94%AF?p=1129536#post1129536
https://www.intelivisto.com/forum/posts/list/0/768.page#25396
https://wordclerks.com/faq/472/Writers-block-when-writing-research-papers
https://welum.com/forums/topic/can-you-manually-clean-a-printhead/#post-14846
 
And I watned to claim thanks!

Ernestfig