HP 640 Setup Guide - Page 15

Troubleshooting www.hp.com/support Problem: Action: The Install ink cartridge message appears after you insert the print cartridge. Remove the print cartridge. Make sure you remove all tape from the copper contacts. Re-insert the cartridge making sure it snaps firmly into place. Problem: Action: Paper keeps feeding continuously through the device. You have the paper loaded into the document tray. You must load the paper for printing into the paper tray at the back of the device. Refer to the loading paper instructions in this Setup Guide. Problem: Cannot send a fax / no dial tone. Action: Unplug and reconnect the phone cord both to the HP Fax and the wall. You should hear a click when the cord is inserted properly. Make sure the phone line has no dial tone. Refer to the User Guide for more information. Visit www.hp.com/support for assistance. Consulte la Guía del usuario para obtener más información. Para obtener ayuda visite www.hp.com/support.