If your printer is going off-line constantly, you may wonder Why does my HP printer keep going offline. There is a possibility that some hardware part of your printer must have got damaged. There is also a chance that some files related to your printer must have got corrupted. These files can be drivers files. Besides these, it must be happening due to the loose connection. You need to troubleshoot, looking out for these factors. You need to troubleshoot for the above conditions one by one. Certain problems such as drivers problems can be found out with the help of HP software.