HP Scanjet 7800
User Guide
Contents
1
2
3
4
5
User Guide
HP Scanjet 7800 Scanner User Guide.................................................................2
What you can do with the scanner .........................................................................2
Scanner hardware ..................................................................................................3
Scanning software ..................................................................................................4
Where to get additional information ........................................................................6
Accessibility ............................................................................................................7
Set up profiles........................................................................................................9
Set up a profile with HP Smart Document Scan Software .....................................9
Assign profile numbers with the Button Settings Utility ........................................10
Modify a profile with HP Smart Document Scan Software ...................................10
Import and export profiles .....................................................................................10
Scan and copy.....................................................................................................12
Basic scanning steps ............................................................................................12
Basic copying steps ..............................................................................................12
Scan two-sided originals ......................................................................................12
Scan a card in the card slot ..................................................................................13
Load originals .......................................................................................................13
Use the scanner buttons ......................................................................................15
Scan from HP Smart Document Scan Software ...................................................16
Scan from other software programs .....................................................................16
Care and maintenance........................................................................................17
Button Settings Utility General info tab .................................................................17
Order maintenance and scanning supplies ..........................................................17
Clean the scanner glass .......................................................................................17
Use the HP paper-path cleaning cloth ..................................................................18
Clean the feed-roller assembly manually .............................................................19
Troubleshooting..................................................................................................21
Scanner initialization or hardware problems ........................................................21
Scanner operation problems ................................................................................22
Scanner buttons are not working correctly ...........................................................24
Scanner paper path problems ..............................................................................25
Contact HP Support ..............................................................................................27
1
1
HP Scanjet 7800 Scanner User
Guide
This user guide covers what you need to know about using the HP Scanjet 7800 scanner.
●
●
●
●
●
What you can do with the scanner
Scanner hardware
Scanning software
Where to get additional information
Accessibility
What you can do with the scanner
The following table summarizes the scanner features. Many of these features are
available through the HP Smart Document Scan Software or other scanning software.
For more information, see Scanning software.
Feature
Description
Profiles
You can set up and use profiles that contain all settings
necessary for scanning tasks such as:
●
●
●
Document processing
Saving in different file formats (i.e. searchable or
non-searchable PDF files) using automatic naming
mechanisms
Sending to different destinations such as FTP,
Microsoft SharePoint, or other applications
For more information, see Set up profiles.
2
Preview pages
Using preview pages, you can check the quality of
images before accepting and completing a scan. You
can also crop images, which is useful when scanning
small items such as a drivers license or a photo.
Page management
You can view, edit, delete, insert, and reorder pages.
You can also have the scanner automatically delete
blank pages.
File management
You can scan all pages to a single file, scan each page
to a separate file, or scan to separate files based on bar
codes or blank pages in the original.
Optical Character
Recognition (OCR)
With OCR software, you can scan originals as editable
text that you can send to your favorite application.
HP Scanjet 7800 Scanner
(continued)
Links
You can set up profiles to send files to different
destinations via local or global network connections.
Wide range of sizes
You can scan originals ranging from legal-size paper to
checks.
You can use the card slot on the back of the scanner to
scan items such as business cards, drivers licenses,
identification cards, insurance, and other cards.
Scanner hardware
●
●
Scanner front panel buttons
Power rocker switch
Scanner front panel buttons
Use the buttons on the scanner front panel to start a scan, select a profile for a scan, and
configure some scanner settings. For more information, see Use the scanner buttons.
4
1
5
2
3
Icon
Button name
Description
1
Scan Document To
Start a scan (after
selecting a profile).
2
Copy
Start a copy (after
selecting the number of
copies).
3
Select Profile Number
or Number of Copies
Select a profile (before
scanning) or the number
of copies (before
copying).
The selected profile
number or number of
copies is displayed on the
LCD panel.
User Guide
3
Chapter 1
(continued)
4
Cancel
Cancel a scan or copy in
progress.
5
Button Settings
Open the Button Settings
Utility where you can
work with profiles or view
maintenance information.
Power rocker switch
The Power rocker switch is located on the back of the scanner.
Scanning software
The scanner comes with an assortment of scanning and document-management
programs, including:
●
●
●
●
●
●
HP Smart Document Scan Software
Button Settings Utility
Kofax VirtualReScan (VRS)
IRIS Readiris Pro
ScanSoft PaperPort
NewSoft Presto! BizCard Reader
For more information and detailed descriptions of the software programs, see the printed
Setup and Support Guide that came with the scanner.
For PDF version of the guide that you can print:
1.
2.
3.
4.
4
Insert the HP Smart Document Scan Solution CD that came with the scanner into
the computer CD drive.
Wait for the installation dialog box to display.
Click View or print guides.
A list of languages is displayed.
Click the language that you want.
A list of guides is displayed.
Click Printable Setup and Support Guide.
HP Scanjet 7800 Scanner
HP Smart Document Scan Software
HP Smart Document Scan Software guides you through the scanning
process. To open the software, double-click the HP Smart Document
Scan Software icon on the desktop. For more information, see Scan from
HP Smart Document Scan Software.
Main window
When you open the software the main window is displayed. In the main window you can:
●
●
●
Start a scan: Load the original in the document feeder, select Simplex or Duplex
(for one-sided or two-sided printing), select a profile from the list, and then click
Scan. The scan will be completed using the settings associated with the selected
profile.
For more information, see Scan from HP Smart Document Scan Software.
Set up a profile: Click New, and then select the settings for the profile on the
Profile, Process, Scan, and Destination tabs.
For more information, see Set up profiles.
Modify a profile: Select a profile from the list, click Edit, and then change the
settings for the profile on the Profile, Process, Scan, and Destination tabs.
For more information, see Set up profiles.
Second window
In the second window (Executing profiles) you can manage pages. At the top of the
window is a thumbnail view where scanned pages are displayed one by one as they are
scanned. From this page you can:
●
●
●
●
Scan more pages
Preview pages individually
Reorganize or delete pages
Finish scanning
For detailed information, see the HP Smart Document Scan Software help. To open the
help, double-click the HP Smart Document Scan Software icon on the computer
desktop, and then click Help in the toolbar menu.
Button Settings Utility
Use the Button Settings Utility to manage profiles and find information about scanner
status and maintenance.
To open the utility, do one of the following:
●
●
●
Double-click the Button Settings Utility icon on the desktop.
Press the Button Settings ( ) button on the front panel of the scanner.
Click Start, point to Programs or All Programs, point to HP, point to
Scanjet, point to 7800, and then click Button Settings Utility.
Use the Configure buttons tab to manage the profiles if HP Smart
Document Scan Software is installed on the computer. For more information,
see Set up profiles.
User Guide
5
Chapter 1
(continued)
Use the General info tab to find information about the status of the scanner
hardware: scan count, scanner model, Instant Lamp Warm-up, maintenance
suggestions, and more.
Other software programs
For information about another scanning software program, open the program, and then
click Help in the toolbar menu.
Where to get additional information
The scanner comes with several sources of additional information:
●
●
●
Printable version of this guide
HP Scanjet 7800 Setup and Support Guide
Online help
Printable version of this guide
For a PDF version of this guide that you can print:
1.
2.
3.
4.
Insert the HP Smart Document Scan Solution CD that came with the scanner into
the computer CD drive.
Wait for the installation dialog box to display.
Click View or print guides.
A list of languages is displayed.
Click the language that you want.
A list of guides is displayed.
Click Printable User Guide.
HP Scanjet 7800 Setup and Support Guide
Use the printed HP Scanjet 7800 Setup and Support Guide that came with the scanner
to set up and connect the scanner hardware, test the installation, and troubleshoot
installation problems.
For a PDF version of the setup and support guide that you can print:
1.
2.
3.
4.
Insert the HP Smart Document Scan Solution CD that came with the scanner into
the computer CD drive.
Wait for the installation dialog box to display.
Click View or print guides.
A list of languages is displayed.
Click the language that you want.
A list of guides is displayed.
Click Printable Setup and Support Guide.
Online help
The following sources of information are available online:
6
HP Scanjet 7800 Scanner
HP Smart Document Scan Software help
If HP Smart Document Scan Software is installed on the computer, doubleclick the HP Smart Document Scan Software icon on the computer
desktop, and then click Help in the toolbar menu.
Button Settings Utility help
If the Button Settings Utility is installed on the computer, click Help on the
dialog box. For help opening the Button Settings Utility, see Assign profile
numbers with the Button Settings Utility.
Accessibility
This section describes the accessibility options available with this scanner.
●
●
●
Screen-readable user guide in other languages
LCD Reader
Button Disable Utility
Screen-readable user guide in other languages
There is a screen-readable version of this User Guide on the software CD. To get a
version of the guide in another language:
1.
2.
3.
4.
Insert the HP Smart Document Scan Solution CD that came with the scanner into
the computer CD drive.
Wait for the installation dialog box to display.
Click View or print guides.
A list of languages is displayed.
Click the language that you want.
A list of guides is displayed.
Click Onscreen User Guide.
LCD Reader
The LCD Reader is a software program that displays the contents of the scanner's LCD
as it changes. It utilizes accessibility tools installed on your computer to read what is
being displayed on the LCD.
To use the LCD Reader, follow these steps:
1.
2.
On your hard drive, navigate to C:\Program Files\Common Files\Hewlett-Packard
\Scanjet\7800\hplcd.exe.
To start the program, double-click hplcd.exe.
Button Disable Utility
To prevent buttons from being accidentally pushed, you can use the Button Disable Utility
to disable the buttons. You can use the same utility to re-enable the buttons.
User Guide
7
Chapter 1
To use the Button Disable Utility, complete the following steps:
1.
2.
3.
8
On your hard drive, navigate to C:\Program Files\Common Files\Hewlett-Packard
\Scanjet\7800\hpbdu.exe.
Double-click hpbdu.exe.
The HP Button Disable Utility dialog box is displayed.
Select the scanner, and then click Enable Buttons or Disable Buttons.
HP Scanjet 7800 Scanner
2
Set up profiles
An HP Smart Document Scan Software profile contains settings for scanning,
processing, and saving or sending scanned documents. You can set up profiles for use
with the Scan Document To button. The profiles provide a fast, efficient way to scan.
You can configure each profile to perform specific scanning functions that you use often.
For example, if you frequently need to scan originals at 200 dpi color, create a PDF file,
and save the file in a folder named Archives within a folder named 2005, you can create
a profile with the necessary settings to accomplish this task.
Use HP Smart Document Scan Software to set up and modify profiles. Use the Button
Settings Utility to assign a number to each profile. After you have set up a profile, you
can use the same settings simply by selecting the profile in the LCD of the front panel.
●
●
●
●
Set up a profile with HP Smart Document Scan Software
Assign profile numbers with the Button Settings Utility
Modify a profile with HP Smart Document Scan Software
Import and export profiles
Set up a profile with HP Smart Document Scan Software
1.
To open HP Smart Document Scan Software, do one of the following:
– Double-click the HP Smart Document Scan Software icon on the computer
desktop.
–
2.
3.
Click Start, point to Programs or All Programs, point to HP, point to
Scanjet, point to 7800, and then click HP Smart Document Scan Software.
Click New.
The Create New Profile dialog box is displayed.
In the Profile name box, type the name you want or accept the default name.
Tip You might want to set up the new profile based on an existing one. To
do so, check the Copy settings from profile check box and select an
existing profile from the list.
4.
5.
6.
7.
User Guide
Click Continue.
The Profile Settings dialog box is displayed.
Use the Scan, Process, and Destination tabs to select the settings for the profile.
If you have set up the new profile based on an existing one, the existing profile's
settings are displayed. Otherwise, the new profile's settings, such as paper size,
target folder, etc., default to the most commonly used values.
After completing all settings go back to the Profile tab to summarize the most typical
characteristics of the profile (such as document types and formats, separation
criterion, destination link) in the Description box.
Click OK.
9
Chapter 2
For more information, see the HP Smart Document Scan Software help. Double-click the
HP Smart Document Scan Software icon on the computer desktop, and then click
Help in the toolbar menu.
Assign profile numbers with the Button Settings Utility
Use the Button Settings Utility to assign each profile to a number. Profiles represented
as numbers are easily selected from the LCD.
Note Because the profile number in the LCD panel returns to 01 after being idle
for 20 seconds, it is a good idea to assign commonly used profiles to lower
numbers.
1.
To open the Button Settings Utility, do one of the following:
– Double-click the Button Settings Utility icon on the computer desktop.
–
–
2.
3.
4.
Press the Button Settings ( ) button on the front panel of the scanner.
Click Start, point to Programs or All Programs, point to HP, point to
Scanjet, point to 7800, and then click Button Settings Utility.
Select the button number in the Select button to configure area of the dialog box.
Click a profile name in the Choose profile for selected button list.
Click OK.
Modify a profile with HP Smart Document Scan Software
To modify a profile, follow these steps:
1.
To open HP Smart Document Scan Software, do one of the following:
– Double-click the HP Smart Document Scan Software icon on the computer
desktop.
–
2.
3.
Click Start, point to Programs or All Programs, point to HP, point to
Scanjet, point to 7800, and then click HP Smart Document Scan Software.
Select the profile that you want to modify from the Select a scan profile list.
Click Edit.
For more information, see the HP Smart Document Scan Software help. Double-click the
HP Smart Document Scan Software icon on the computer desktop, and then click
Help in the toolbar menu.
Import and export profiles
Profiles can be exported into and imported from an XML file so that administrators can
set up profiles for a workgroup, users can transfer their profiles from one machine to
another, and users can share custom profiles with each other.
10
HP Scanjet 7800 Scanner
For more information, see the HP Smart Document Scan Software help. Double-click the
HP Smart Document Scan Software icon on the computer desktop, and then click
Help in the toolbar menu.
User Guide
11
3
Scan and copy
●
●
●
●
●
●
●
●
Basic scanning steps
Basic copying steps
Scan two-sided originals
Scan a card in the card slot
Load originals
Use the scanner buttons
Scan from HP Smart Document Scan Software
Scan from other software programs
Basic scanning steps
The basic steps for scanning are:
1.
2.
Load the originals. For more information, see Load originals.
Do one of the following:
– Use the Select Profile Number ( ) button on the scanner front panel to select
a profile, and then press the Scan Document To ( ) button.
For information about profiles, see Set up profiles.
– Open HP Smart Document Scan Software. For more information, see Scan
from HP Smart Document Scan Software.
– Open another scanning software program. For more information, see Scan from
other software programs.
Tip Descriptions of the profiles can be found in the HP Smart Document Scan
Software, on the profile label on the pull-down tray on the front of the scanner, or
in the Button Settings Utility.
Basic copying steps
The basic steps for copying are:
1.
2.
Load the originals. For more information, see Load originals.
Use the Number of Copies ( ) button on the scanner front panel to select the
number of copies, and then press the Copy ( ) button.
Copies are printed on the computer's default printer.
Scan two-sided originals
The steps for scanning or copying two-sided originals are the same as for one-sided
originals. In the HP Smart Document Scan Software, select Duplex (for two-sided
printing). The scanner processes both sides of the original in one pass.
12
HP Scanjet 7800 Scanner
Scan a card in the card slot
To scan a card using the card slot on the back of the printer, follow these steps:
1.
Insert one card, face down with the top of the card facing left, in the card slot on the
back of the scanner.
2.
Use the NewSoft Presto! BizCard Reader software to read the card and save it to a
file or send it to a printer.
Caution Do not load more than one card in the card slot at a time.
Load originals
This section explains how to load originals in the document feeder.
●
●
Choose acceptable paper
Load originals in the document feeder
Choose acceptable paper
Originals can range from legal-size paper to business cards or checks. The scanner
works best when the originals meet the following specifications:
●
●
●
●
●
●
●
●
User Guide
A4-, A5-, letter-, or legal-size paper
JIS B5 182 mm x 257 mm (7.2 x 10.1 inches)
B5 176 mm x 250 mm (7.0 x 9.9 inches)
Custom-size paper ranging from 73.7 mm x 53.3 mm (2.9 x 2.1 inches) to 216 mm
x 356 mm (8.5 x 14 inches)
Media weights from 60 g/m2 (16 lb) to 120 g/m2 (32 lb)
Magazine pages that are heavier than 60 g/m2 (16 lb)
No cards with raised characters, such as credit cards
No photos, multipart forms, transparencies, gum-backed pages, or lightweight paper
13
Chapter 3
Caution Before placing an item in the document feeder, make sure that the item
does not contain wet glue, correction fluid, or other substances that can be
transferred to the interior of the scanner.
Make sure there are no curls, wrinkles, staples, paper clips, or any other attached
material. Sheets should not be stuck together.
Load originals in the document feeder
14
1.
Extend the output tray. For longer paper sizes, extend the document feeder
extension.
2.
Place the stack of pages face down. The top of the pages should point down ( ).
3.
Adjust the paper guides to center the original. Make sure the paper guides touch the
edges of the original.
HP Scanjet 7800 Scanner
Note When scanning small originals such as checks, it is especially
important that the paper guides fit snugly against the edges of the original.
Use the scanner buttons
●
●
●
●
Scan Document To button
Copy button
Button Settings button
Cancel button
Scan Document To button
Use the Select Profile Number button ( ) to select a profile. The profile number (01
through 30) is displayed on the LCD panel.
Tip 1 Descriptions of the profiles can be found in the HP Smart Document Scan
Software, on the profile label on the pull-down tray on the front of the scanner, or
in the Button Settings Utility.
Tip 2 To increase or decrease the profile numbers rapidly, press and hold the
Select Profile Number button.
Use the Scan Document To ( ) button to scan an original document using the selected
profile.
For information about profiles, see Set up profiles.
Copy button
Use the Number of Copies button ( ) to specify the number of copies that you want. The
number of copies is displayed on the LCD panel.
Tip To increase or decrease the number of copies rapidly, press and hold the
Number of Copies button.
Use the Copy button (
default printer.
User Guide
) to scan an original document and send it to the computer's
15
Chapter 3
Button Settings button
Use the Button Settings button to open the Button Settings Utility. Use the Button
Settings Utility to manage profiles and find information about scanner status and
maintenance. For more information, see Button Settings Utility.
Cancel button
Use the Cancel button to cancel a scan in progress.
Scan from HP Smart Document Scan Software
You can start a scan from the HP Smart Document Scan Software.
1.
Do one of the following:
– Double-click the HP Smart Document Scan Software icon on the computer
desktop.
–
2.
Click Start, point to Programs or All Programs, point to HP, point to
Scanjet, point to 7800, and then click HP Smart Document Scan Software.
Select the profile that you want from the Select a scan profile list.
Tip A description of the selected profile is displayed below the list. For
descriptions of the most commonly used profiles, see the profile label on the
pull-down tray on the front of the scanner.
3.
4.
Click Scan.
Follow the onscreen instructions to complete the scan.
For more information, see the HP Smart Document Scan Software help. Double-click the
HP Smart Document Scan Software icon on the computer desktop, and then click
Help in the toolbar menu.
Scan from other software programs
You can scan an image or document directly into a software program if the program is
ISIS or TWAIN compliant. Generally, the program is compliant if it has a menu option
such as Acquire, Scan, Import New Object, or Insert. If you are unsure whether the
program is compliant or what the option is, see the documentation for that program.
16
HP Scanjet 7800 Scanner
4
Care and maintenance
This section presents information about how to care for and maintain the scanner.
●
●
●
●
●
Button Settings Utility General info tab
Order maintenance and scanning supplies
Clean the scanner glass
Use the HP paper-path cleaning cloth
Clean the feed-roller assembly manually
Occasional cleaning of the scanner helps ensure high-quality scans. The amount of care
necessary depends upon several factors, including the amount of use and the
environment. You should perform routine cleaning as necessary.
Caution Before placing an item in the document feeder, make sure that the item
does not contain wet glue, correction fluid, or other substances that can be
transferred to the interior of the scanner.
Make sure there are no curls, wrinkles, staples, paper clips, or any other attached
material. Sheets should not be stuck together.
Button Settings Utility General info tab
The General info tab of the Button Settings Utility displays important information about
the scanner, a link to the scanner maintenance suggestions and log, and a check box
for activating the Instant Lamp Warm-up feature of the scanner lamp. For an explanation
of the General info tab, see the Button Settings Utility help.
Order maintenance and scanning supplies
You can purchase maintenance parts for your scanner.
1.
2.
Visit the HP scanner parts Web site at www.hp.com/buy/parts.
Select your language, and then click the arrow.
Clean the scanner glass
Both strips of glass in the scanner should be cleaned periodically. The two small strips
of white reflective material should be lightly dusted if debris is present.
To clean the strips of glass, follow these steps:
1.
2.
User Guide
Disconnect the USB cable and power supply from the scanner.
Open the scanner hatch.
17
Chapter 4
3.
Clean the glass by using a soft, lint-free cloth that has been sprayed with a mild glass
cleaner.
Caution Use only glass cleaner to clean the scanner glass. Avoid cleaners
that contain abrasives, acetone, benzene, and carbon tetrachloride, all of
which can damage the scanner glass. Avoid isopropyl alcohol because it can
leave streaks on the glass.
Do not spray the glass cleaner directly on the glass. If too much glass cleaner
is applied, the cleaner could leak under the glass and damage the scanner.
4.
5.
Dry the glass with a dry, soft, lint-free cloth.
When you have finished, reconnect the USB cable and power supply to the scanner.
Use the HP paper-path cleaning cloth
If scanned images have streaks or scratches, use the HP paper-path cleaning cloth to
clean the paper path. Follow these steps:
1.
2.
3.
18
Open the sealed container, starting at the notch. Take care not to tear the cleaning
cloth that is inside.
Remove the cleaning cloth and unfold it.
Place the unfolded cloth into the document feeder.
HP Scanjet 7800 Scanner
4.
Follow the basic scanning steps. For more information, see Basic scanning steps.
Caution Wait two minutes for the components to dry before proceeding to
the next step.
5.
6.
Place up to five pages of printed paper in the scanner. Scan and view the results.
If streaks still appear, repeat steps 3 through 5. The cleaning cloth can be cycled
through the scanner up to five times within 30 minutes. After that, the cloth will dry
out.
Clean the feed-roller assembly manually
If scanned images have streaks or scratches, clean the feed-roller assembly. Follow
these steps:
User Guide
1.
2.
Open the scanner hatch.
Squeeze the tabs on the feed-roller assembly cover towards each other, and then
lower the feed-roller assembly cover.
3.
Use an HP paper-path cleaning cloth to clean the feed roller and the small rubber
pad that is located below it.
19
Chapter 4
Note If you do not have an HP paper-path cleaning cloth, use a lint-free
cloth that has been dampened with isopropyl alcohol.
4.
5.
Wipe the area around the small rubber pad to remove any paper dust.
Raise the feed-roller assembly cover to close it.
6.
Close the scanner hatch.
Note HP recommends that you replace the feed-roller assembly every 100,000
scans. Use the HP Button Settings Utility to keep track of the scan count. For
more information, see the General info tab in the Button Settings Utility.
20
HP Scanjet 7800 Scanner
5
Troubleshooting
This section contains solutions for common problems with the scanner.
●
●
●
●
●
Scanner initialization or hardware problems
Scanner operation problems
Scanner buttons are not working correctly
Scanner paper path problems
Contact HP Support
For additional troubleshooting, see the help for the HP scanning program that you are
using. For more information, see Where to get additional information.
Scanner initialization or hardware problems
This section contains solutions for initialization and hardware problems.
●
●
●
Reset the scanner
Scanner has stopped working correctly
Check the cables
Reset the scanner
If you receive an error message similar to “Scanner initialization failed” or “Scanner not
found” when trying to use the scanner, follow these steps:
1.
2.
3.
4.
5.
6.
Close the scanning software, if it is open.
Disconnect the USB cable that connects the scanner to the computer.
Turn the scanner off.
Shut down the computer operating system, turn the computer off, wait 60 seconds,
and then turn the computer back on.
Turn the scanner on.
Reconnect the USB cable that connects the computer and the scanner, making sure
that the USB cable is connected to the back of the scanner correctly.
After 30 seconds, the characters in the LCD panel should not be blinking. If the LCD
panel characters are blinking, see the printed Setup and Support guide that came
with the scanner.
Scanner has stopped working correctly
If the scanner stops scanning, follow these steps. After each step, start a scan to see if
the scanner is working. If the problem persists, proceed with the next step.
1.
2.
3.
4.
User Guide
A cable might be loose. Ensure that both the USB cable and power supply are
properly connected.
Unplug the power cable from the power source, wait 60 seconds, and then plug it
back in.
Restart your computer.
A software conflict might exist on your computer. You might need to uninstall and
then reinstall the scanner software.
21
Chapter 5
a.
5.
Click Start, click Settings, and then click Control Panel. (In Windows XP, click
Start, and then click Control Panel.)
b. Click Add/Remove Programs (in Windows XP, click Add or Remove
Programs), and then select the HP Scanjet software.
c. Click Remove.
Reinstall using the HP Smart Document Scan Software CD that came with your
scanner. When you insert the CD, an installation dialog box launches automatically.
Check the cables
Cable type
Action
Power supply
The power supply has an attached cable that plugs into the back
of the scanner. The connector on the end of this cable has a
green LED that is on when the power supply is functioning
correctly.
The power supply also has an AC cable that is connected to the
power supply on one end and plugged into a power outlet or
surge protector on the other end.
1.
2.
3.
USB cable
Check that the green LED on the power supply cable
connector is on.
If the green LED is not on, ensure that power is available to
the power outlet or surge protector that the AC cable is
plugged into.
If power is available to the power outlet or surge protector
but the green LED is still not on, the power supply might be
defective. Contact HP Support for assistance.
The USB cable is connected between the scanner and the
computer.
●
●
Use the cable that was included with the scanner. Another
USB cable might not be compatible with the scanner.
Ensure that the USB cable is securely connected between
the scanner and the computer.
For additional USB troubleshooting information, see
www.hp.com/support, select your country/region, and then use
the search tool to find USB troubleshooting topics.
Scanner operation problems
●
●
22
Scanner will not turn on
Scanner lamp stays on
HP Scanjet 7800 Scanner
●
●
●
●
●
●
Scanner does not scan right away
Scanned image is fuzzy
Scanner is scanning items very slowly
The scan is completely black or completely white
Scanned images are not straight
Vertical white stripes appear on the printed page
Scanner will not turn on
If the scanner will not turn on when you press the front panel scanner buttons, check the
following:
●
●
●
The scanner may be turned off. Be sure the power rocker switch located on the back
of the scanner is in the on position.
The scanner may have been unplugged. Check to see that the power supply has
not become disconnected from the scanner or unplugged from the power source.
The power supply might not be working. For more information, see Check the cables.
Scanner lamp stays on
To turn the lamp off, turn off the scanner, wait 30 seconds, and then turn the scanner
back on.
Scanner does not scan right away
Make sure the power rocker switch on the back of the scanner is in the on position.
If the scanner has not been used for awhile, the scanner lamp might need to go through
a warm-up period before scanning can begin. If the scanner lamp needs to warm up, it
takes a moment after starting the software or pressing a scanner button for scanning to
begin.
Scanned image is fuzzy
Check for any obstructions in the scanner paper path and make sure the paper width
guides are positioned appropriately. Try another scan.
Scanner is scanning items very slowly
●
●
If you are scanning to edit text, the optical character recognition (OCR) software
program causes the scanner to scan more slowly, which is normal. Wait for the item
to scan.
The resolution might be set too high in the profile. Modify the profile or select another
profile.
The scan is completely black or completely white
The item might not be placed correctly in the document feeder. Make sure that the item
you are trying to scan is placed face down.
User Guide
23
Chapter 5
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.
2.
3.
4.
A cable might be loose. Ensure that the USB cable and the power supply are
securely connected.
Turn off the scanner, wait 30 seconds, and then turn the scanner back on.
Restart your computer.
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.
24
HP Scanjet 7800 Scanner
Scanner paper path problems
Use this section to help resolve paper path issues that might occur when scanning.
●
●
●
●
●
●
●
Paper jamming, skewing, misfeeds, or multiple-page feeds
Paper does not feed from the scanner
The bottom of the scanned image is cut off
The scanned images have streaks or scratches
An item loaded in the scanner jams repeatedly
Clear jams from the scanner paper path
Replace the feed-roller assembly
Paper jamming, skewing, misfeeds, or multiple-page feeds
●
●
●
●
●
●
If the pages look skewed as they feed into the scanner paper path, check the
resulting scanned images in the software to ensure that they are not skewed.
The pages might not be placed correctly. Straighten the pages and adjust the paper
guides to center the stack.
The paper guides must be touching the sides of the paper stack to work properly.
Please ensure that the paper stack is straight and the guides are against the paper
stack.
The document feeder or output tray might contain more than the maximum number
of pages. Load fewer pages in the document feeder, and remove pages from the
output tray.
Check to see that the scanner hatch is fully closed.
Clean the scanner paper path to help reduce misfeeds. If this does not help, install
the feed-roller assembly replacement kit. The feed-roller assembly replacement kit
contains a feed-roller mechanism and a separation pad. For more information, see
Replace the feed-roller assembly.
Paper does not feed from the scanner
The scanner hatch might not be securely latched. Open the scanner hatch and then close
it by pressing firmly.
A problem with the scanner hardware might exist. Follow this procedure to test the
scanner:
1.
2.
3.
4.
5.
User Guide
Ensure that the power supply is securely connected between the scanner and a live
electrical outlet or surge protector. Check that the green LED on the power supply
connector is on to verify that the power supply is functional.
If the power supply is connected to a surge protector, ensure that the surge protector
is plugged into an outlet and turned on.
Disconnect the power supply from the scanner and turn off the computer. After 60
seconds, reconnect the power supply to the scanner and then turn on the computer,
in that order.
Try to rescan.
If the paper still does not feed properly, see the Product Support section of the
printed Setup and Support Guide that came with the scanner.
25
Chapter 5
The bottom of the scanned image is cut off
The scanner can scan an entire media that is up to 355.6 mm (14.0 inches) long. If an
item is longer the end of the document will not be included in the scanned image.
The scanned images have streaks or scratches
After each step, try another scan to see if the streaks or scratches are still apparent. If
so, then try the next step.
●
●
●
●
Check that the originals are clean and unwrinkled.
Use a cleaning cloth in the scanner paper path. For more information, see Use the
HP paper-path cleaning cloth.
Clean the scanner glass. For more information, see Clean the scanner glass.
Clean the feed-roller assembly manually. For more information, see Clean the feedroller assembly manually.
An item loaded in the scanner jams repeatedly
●
●
●
The item might not meet the guidelines for acceptable originals. For more
information, see Load originals.
The item might have something on it, such as staples or self-adhesive notes on the
original that must be removed.
Make sure the paper guides touch the edges of the original.
Clear jams from the scanner paper path
To clear a paper jam:
26
1.
Open the scanner hatch.
2.
3.
4.
Remove the originals or any obstructions from the paper path.
Remove any debris (paper, staples, clips, etc.) that you see in the paper path.
Close the scanner hatch.
HP Scanjet 7800 Scanner
5.
6.
Reload the unscanned originals in the document feeder.
Resume scanning.
Replace the feed-roller assembly
Occasionally, if streaks on scans or paper jams occur repeatedly, you might have to
replace the feed-roller assembly. To order the replacement part, go to www.hp.com/buy/
parts. Instructions are included with the replacement part.
Note HP recommends that you replace the feed-roller assembly every 100,000
scans. Use the HP Button Settings Utility to keep track of the scan count. For
more information, see the General info tab in the Button Settings Utility.
Contact HP Support
For support contact information, see the printed Setup and Support Guide that came with
the scanner or visit www.hp.com/support.
User Guide
27
Chapter 5
28
HP Scanjet 7800 Scanner