Scanned images are not straight
Verify that the document feeder guides are centered on the scanner and set to an
appropriate width for the original being scanned. Make sure the paper guides touch the
edges of the original.
Vertical white stripes appear on the printed page
The destination printer might be out of toner or ink. Scan a different original to the same
printer to see if the issue lies with the printer.
Scanner buttons are not working correctly
● Buttons do not work
● An unexpected program opens when a button is pressed
● Wrong HP Smart Document Scan Software profile is used when a button is pressed
Buttons do not work
After each step, start a scan to see if the buttons are working. If the problem persists,
proceed with the next step.
1. A cable might be loose. Ensure that the USB cable and the power supply are
securely connected.
2. Turn off the scanner, wait 30 seconds, and then turn the scanner back on.
3. Restart your computer.
4. If the problem persists, the buttons might be disabled. Try the following procedure:
a. Open Control Panel, select Scanners and Cameras, and then select your
scanner model from the list.
b. Windows 98 and Windows 2000: Ensure that the Disable Device Events option
is not selected.
c. Windows Me and Windows XP: Ensure the Take No Action option is not
selected.
An unexpected program opens when a button is pressed
Depending on the computer operating system and the HP scanning software installed
on the computer, an unexpected program might open when a profile is selected and a
button is pressed.
If you expected to see HP Smart Document Scan Software, verify that the program is
installed on the computer. Click Start, point to Programs or All Programs, point to
HP, point to Scanjet, point to 7800, and then look for HP Smart Document Scan
Software.
If the program is not installed, then use the appropriate HP scanning software CD to
install the program. If the program is installed, then use the Button Settings Utility to
configure the profile for the program. For more information, see Set up profiles.
Wrong HP Smart Document Scan Software profile is used when a button is pressed
Use the Button Settings Utility to check which HP Smart Document Scan Software
profiles are set up for which number. If necessary, reset the profile set up for the number.
For more information, see Set up profiles.
Chapter 5
24 HP Scanjet 7800 Scanner
