There are several factors responsible for the occurrence of issues and errors in getting your HP OfficeJet Pro 8600 offline. In an everyday scenario, you might look at the printer menu which shows the printer offline message or if you want to print a document you click on the option to select your printer but nothing happens.
In this case, through simple checks and steps, you can get your printer back online very quickly and easily. Sometimes while printing, the device or computer thinks that the printer is offline but actually the printer is on and ready to start printing.
This scenario is caused by an error between your computer or device and the printer or it may be the cable that is not correctly attached to your printer or computer or a simple error coming from a paper jam.
The offline error of your printer may also occur due to the problem with your software or printer driver depending on the age of your printer or when you have or haven't installed updates. To turn HP OfficeJet Pro 8600 offline to online you need to go through a certain troubleshooting process.