HP Officejet 300 HP OfficeJet Model 330 and Model 350 - (English) User Guide - Page 185

Error Notification: Beeps, Blinking Light, Messages The HP OfficeJet notifies you with sound (beeps), a blinking See Display light, and a message under the following conditions. For this error condition: An incorrect button was pressed. You pressed a button with a function that wasn't available at that time. (Example: You can't use the Menu button while sending a fax.) Here's how you'll be notified: Three short beeps. An error interrupted an activity in progress. An error occurred, which interrupted or cancelled the current activity. (Example: If you lift the top of the front panel while sending a fax, the fax will be cancelled.) You may need to take some action to clear the error before continuing to use the HP OfficeJet. Look up the displayed message in the following section for more information. Nine short beeps. The front panel See Display light blinks on and off. An error message is displayed that describes the problem and tells you how to solve it, if applicable. A serious internal problem was detected. A serious problem with the internal mechanical or electronic components has been detected. Service is required. Nine short beeps. The front panel See Display light blinks on and off. A "SYSTEM ERROR" message is displayed, along with a three-digit code. (You can look up this message in the "Understanding the Displayed Messages" section next in this chapter.) Please record this code before calling for service.