I have a HP Deskjet 720C printer plugged into an Ubuntu 12.04.1 Laptop.
When I plugged the printer for the first time, the system found the right model automatically and everything seemed to be fine. But every time I try to print something, the printing process doesn't finish, the paper stays in the tray half-way, or just about to finish, failing to print the last few lines of a document, and can only be taken out by switching the printer on and off. The printing job shows as interrupted in the printer menu:
Any ideas on what might be happening?
The printer was previously working fine on an old 7.10 computer via a 25 pin parallel connection. Since then -- and I don't know if this related to the printing problem -- I bought a USB cable adapter to plug to the laptop, like the one in the picture:
This is the output of
[ 5213.987345] usblp0: USB Bidirectional printer dev 4 if 0 alt 1 proto 2 vid 0x067B pid 0x2305 [ 5274.997679] usblp0: removed [ 5522.007297] usb 1-1.2: reset full-speed USB device number 4 using ehci_hcd [ 5561.914953] usb 1-1.2: reset full-speed USB device number 4 using ehci_hcd [ 5681.101749] usb 1-1.2: reset full-speed USB device number 4 using ehci_hcd [ 5782.969411] usb 1-1.2: reset full-speed USB device number 4 using ehci_hcd
EDIT: I checked the margins, and they are as default as the ones recommended in the answer. I changed the bottom margin slightly, but it always missed the bottom part of the page when doing
Print Test Page, at about 2cm to the end of the A4 page.