physics: what are the practical uses of the reflection of light?
Just Clean the rollers of the Deskjet Printer
HP has the finest support of any manufacturer both at HP Store and on the phone. I do not think you have a serious problem but help is there for you.
Just Restrart the printer it will definately work.
just re did my whole house with Pex and did extensive research on copper vs Pex and chose Pex hands down. Ease of installation COST that was a big on I saved over half. As far as specifically in the walls I guess one could argue it could be pierced by a nail easier but then again so can copper just not quite as easy. Other than that all my wall runs were continuous with no joints as apposed to copper in a tight area where you would have to piece it in or use coiled copper which is twice the cost ridged pipe. I say since you are going with Pex for the rest do it all. PEX has proven its self for years now. It is a pretty hot topic so I'm sure I you will get a wide variate of opinions from others.
Disregard the above to use alcohol as it dries out the oil in the rubber rollers quicker making them hard and slippery over time. Use a damp cloth with water. Not wet or dripping but damp. If that doesn't resolve the issue. Use acetone sparringly and then water but only on the rubber portion of the rollers. Be careful to not get the acetone on the plastic case parts as it will melt or deface the plastic. The acetone will leave the oil in the rubber rollers and remove the glazing/imbedded paper talc that is causing them to slip.
