Sure, my nick name is Yan.
I'm not sure for age of printer, because I started from Jan 2013. At the moment we have almost new printers. They are 2-3 years.
Can you tell me what kind of printers that you focus?
I also have HP, Epson ,Ricoh and it is laser , dot matrix..label.
Normally, for temp of Rayong is about 30 - 35 degrees of humidity is about 65-70%.