The HP printer’s Drum unit is a separate consumable unit that usually should be replaced after the use of 3 to 4 toner cartridges. If you possess a HP laser printer and getting a Replace Drum message on display of your printer, then it might be the right time to get a new drum. In order to track usage, your HP printer utilizes a page counter, which must be reset manually whenever a new drum is installed. If resetting doesn’t perform successfully, then you may face HP Printer Is Offline error. However, the online experts are only one call away from you, who can eliminate this issue within a matter of time. Just make connection with them and resolve this issue.