Kodak Digital Science 7520 User manual

User’s
Guide
A-61140
Part No. 1E8149
Document Scanner 7520

Safety Information for Installation Instructions for the Kodak Digital
Scienceä
ää
äDocument Scanner 7520
IMPORTANT: Equipment shall be installed by qualified
personnel.
WARNING: Dangerous voltage. Disconnect the main
power before installation.
CAUTION: Hot surface, avoid contact
ATTENTION: Eviter le contact, pieces brulantes
VORSICHT: Heisse Oberfläche, Berührung vermeiden
ATTENZIONE: Superficie molto calda, evitare il contatto
ATENÇÃ
ÇÃÇÃ
ÇÃO: Superfície quente. Evite contato
PRECAUCIÓ
ÓÓ
ÓN: Superficie caliente. No Tocar
LET OP: Heet oppervlak, contact vermijden
For the Kodak Digital Science Automatic Document Feeder
CAUTION: Moving parts, avoid contact
ATTENTION: Eviter le contact, pieces en mouvement
VORSICHT: Bewegliche Teile, Berührung vermeiden
ATTENZIONE: Parti in movimento, evitare il contatto
ATENÇÃ
ÇÃÇÃ
ÇÃO: Partes em movimento. Evite contato
PRECAUCIÓ
ÓÓ
ÓN: Piezas móviles. No Tocar
LET OP: Bewegende delen, contact vermijden

Acoustic Emission
Maschinenlärminformationsverordnung – 3, GSGV
Der arbeitsplatzbezogene Emissionswert beträgt <70 dB(A).
[ Machine Noise Information Ordinance – 3, GSGV
– The operator-position noise emission value is <70 dB(A) ].
This equipment was designed for connection to IT Power Systems.
ElectroMagnetic Compatibility Statements
United States
NOTE: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference
in which case the user will be required to correct the interference at their own expense.
Taiwan
Japan

Congratulations!
You have purchased one of the most productive document scanners on
the market today. Your Kodak Digital Science Document Scanner 7520
has a host of timesaving and productivity enhancing features that not
only help you get the job done faster, but in more comfort. You should
take proper care of your new scanner as described in this manual. This
will ensure you of many hours of trouble-free operation.
Your new document scanner includes a number of features (these vary
depending on the configuration you purchased; optional features
include:
•Bar Code Reader
•Document Printer (front and/or rear)
•Patch Reader
•Footswitch
•Workstation
•Endorser
Please contact Kodak or your scanner vendor for more information
about how these options might fit into your operation. If these
accessories are installed, become familiar with their operation as they
will add significant value to your scanning environment.

A-61140 January 2000 1-1
1Introduction
This manual supports the Kodak Digital ScienceDocument Scanner
7520.
The Kodak Digital ScienceDocument Scanner 7520 is a high-speed,
high-resolution rotary production scanner designed for medium- to high-
volume digital capture of business documents. The Document Scanner
captures printed characters, handwritten text, and graphics from
documents of various sizes and thicknesses in an electronic format for
indexing and database storage.
This manual explains how to set-up, operate, maintain and troubleshoot
the Document Scanner 7520.
NOTE: Illustrations in this User’s Guide are shown using the semi-
automatic feeder.
Scanner features The Document Scanner 7520 has the following features:
•Scans up to120 landscape or 90 portrait documents(8 ½ x 11-inch
or 216 x 279 mm) per minute at 200 dpi or 80 landscape or 60
portrait documents per minute at 300 dpi.
•Handles documents of up to 2.5 to 20 in. (64 to 508 mm) long,
2.5 to 12 in. (64 to 305 mm) wide, and 0.014 in. (0.36 mm) thick. The
gap release feature allows thicker documents to be scanned.
•Manual or automatic feeding with positive document separation —
documents can be hand-fed one at a time or stacked up to 1.5
inches (38 mm) or approximately 300 documents of 20-pound stock.
•Self-centering feed tray for easier feeding and enhanced productivity.
•Front and rear scanning (known as “duplex”) allows scanning of one
or two sides of a document in a single pass.
•Easy operation — documents enter and exit the scanner in the
same order.
•Easy-to-reach control panel keys.
•A high-speed document transport system with easy access for
cleaning and removal of paper jams.
•Skew detection and correction, auto-cropping and border reduction.
•Multi-feed detection via length monitoring

1-2A-61140 January 2000
•A two-line, status display which displays image addresses, current
application modes and error and operator messages.
•Full programmability of all 18 application modes with override
capability.
•Audible tones for selected functions such asfootswitch, patch
reading, etc.
•English or other language message display.
•An adaptable, modular design for easy addition of accessories.
Scanner options The following optional accessories are available for use with your
scanner:
•A choice of feeders — automatic document feeder or a semi-
automatic document feeder.
•Document printer(s) which provide pre-scan (front) and/or post-scan
(rear) capability of printing information such as date and time of
capture, sequence number, document number and a variety of other
options.
•A bar code reader for decoding data in bar code format.
•A patch reader for automatic document level control.
•A footswitch for document level control.
•A universal stand which has a large, built-in workshelf.

A-61140 January 2000 1-3
Scanner
components The following illustrations and descriptions will help you locate and
become familiar with scanner components.
Front View — Document Scanner 7520
(shown with semi-automatic feeder)
Anti-static brush
Exit hopper side guides
Exit hopper
End stop
Feed and separator
rollers
Self-centering
feed tray
Control panel
Gap release lever
Gap adjustment
knob
Feed tray side guides
Top cover release
button
Side access door
handle
Anti-static brush — minimizes the static build-up on the documents
before they are deposited in the exit hopper.
Exit hopper side guides — adjustable to accommodate the size of
your documents to aid in neat and even stacking.
Exit hopper— collects documents after they have been scanned.
End Stop — keeps documents in place as they exit the scanner.
Feed and separator rollers — provides smooth document feeding of
various sizes and textures.
Self-centering feed tray — centers documents in the transport for
reduced skew and cropping control.
Control panel — contains the status display, indicators, and operating
keys used to control the scanner.
Gap adjustment knob — allows you to manually adjust the space
between the feed and separator rollers for documents of varying
thicknesses.
Gap release lever — allows you to open the feed gap to allow thicker
documents to be fed into the transport.
Feed tray sides guides — holds documents prior to feeding.

A-61140 January 2000 1-5
Rear View — Document Scanner 7520
COIN 1/3
COIN 2
SCSI connectors
Footswitch
connector
Serial #
Power switch
Power cord
connector
Footswitch connector — allows you to plug in the optional Footswitch
accessory.
Serial number — provides the serial number and agency approvals.
Power switch — toggle this switch to turn the power on (|) or off (O).
Power cord connector — plugs into an appropriate power outlet.
COIN 1/3 — service/diagnostic interface. Configures the scanner and
runs diagnostics.
COIN 2 — not for customer use.
SCSI connectors — SCSI connection for the scanner.
For European units only:
WARNING: Communications between the Scanner 7520 and the
host computer including both the SCSI cable (TDK:
HF70RH26X29X13) and RS-232 cable
(TDK: HF70RH12X15X7.3) must have ferrite cores.
These ferrite-cored cables are used for radio
frequency interference suppression.

1-6A-61140 January 2000
Control panel The control panel consists of the status display and the operation keys
and indicators.
Status display The status display indicates the image address, current application
mode and error messages.
Scanner status
Mode number
Fixed
field Delimiter
Level III
Level II Level I
Scanner Status — displays if the scanner is enabled or disabled.
Mode Number — displays the current mode number or name.
Fixed field — an alphanumeric field containing fixed information, i.e.,
the date, application ID, etc.
Delimiters — used to separate the levels in an image address.
Delimiters can be displayed in different locations (as shown above)
based upon system configuration.
Level I* — identifies the Level 1 sequence (commonly the page
number)
Level II* — identifies the Level 2 sequence (commonly the document
number)
Level III* — identifies the Level 3 sequence (commonly a batch
number)
*Depending on your application design, you may see a variety of
different number and level schemes. See your application design person
for more information.

A-61140 January 2000 1-7
Operating keys and
indicators Following is an illustration and a description of the operating keys and
indicators.
Two-line status display
Key/Indicator Function
Image buffer status Front — green indicates the front side image buffer is available for
scanning; red indicates the buffer is not available and the feeder is
off (for simplex- and duplex-defined application modes).
Back — green indicates the rear side image buffer is available for
scanning; red indicates the buffer is not available and the feeder is
off (for duplex-defined application modes only).
Contrast thumbwheel Allows you to adjust the display contrast between the characters
and the background in the display.
Numeric keys (0-9) Used with the Enter key to enter numeric data such as an image
address or function code.
Decimal key Allows you to insert a field separator in an image address.
F key Selects one of the available functions when used with the numeric
keys.
CClear or Cancel. Allows you to cancel a function without changing
the preset value(s). Also used to clear error messages from the
status display.

1-8A-61140 January 2000
Operating keys and indicators
Keys/Indicators Function
Next Allows you to enter the next document image address.
+Allows you to enter a new value for the image address. When pressed, it
allows a field to remain unchanged.
Enter Used to enter numeric data for a function code or an image address change.
Back Used to move the cursor back one space during numeric data input (the last
data input is erased).
CAL Starts the calibration process.
End Press End to stop the feeder and transport system at the end of a batch or
job and alert the host computer that the batch or job has ended. When
pressed, the documents in the transport system will be scanned and
stacked faced down in the exit hopper before the transport is disabled.
Jog Momentarily turns on (jogs) the transport system to help clear document
jams.
Level 3 key Identifies the next document fed into the scanner as a Level 3 document.
Level 2 key Identifies the next document fed into the scanner as a Level 2 document.
Level 1 key Identifies the next document fed into the scanner as a Level 1 document.
Run Turns on the feeder and transport system.
Stop Stops the feeder and transport system. When Stop is pressed, documents
in the transport system will be scanned and placed in the exit hopper before
the transport system stops.
Confirmation tone/alarm The confirmation tone/alarm is located under the control panel and
sounds when one of the following conditions occur:
•Run is pressed (one long tone).
•Stop or End is pressed (many short tones followed by a long tone).
•Feeder clutch engages/disengages (one short tone).
•Incorrect key is pressed (three short tones).
•Document skew is greater than what is setup in the skew parameter,
or when a document is shorter or longer than the specified length
parameters (one short tone).
•A bar code is detected (if the accessory is enabled and the
confirmation tone is enabled).
•A patch code is detected (if the accessory is enabled and the
confirmation tone is enabled).
•The Footswitch is detected (if the accessory is enabled and the
confirmation tone is enabled — one short tone).

A-61140 January 2000 2-1
2Getting Started
The following steps are necessary to prepare the scanner for operation.
Procedures on how to perform these steps are described in this
chapter.
1. Turn on the power to the scanner.
2. Select the language display.
3. Calibrate the scanner.
4. Prepare the documents for scanning.
5. Adjust the feed and separator roller gap, if required (semi-automatic
feeder).
6. Adjust the feed shelf position.
7. Adjust the feed shelf side guides.
8. Adjust the exit hopper side guides and end stop.
9. Select the desired application mode and image level, or the Count
Only function.
10. Start the scanner from the host computer. (This step is not
necessary for the Count Only function.)
11. Press Run.
12. Feed the documents into the scanner.
13. Press Stop or End, depending on whether the batch or job has been
completed.
NOTE:After you press Stop, Run can be pressed again and more
documents can be fed into the scanner. After pressing End,
you must enable the scanner from the host computer before
scanning again.
Turning on the
scanner Follow the steps below to turn on the power to the scanner.
1. Turn on the power switch(located at the rear of the machine).
NOTE: Several initialization messages will appear in the status
display. If you cannot see any messages, try adjusting the
contrast.
2. Send the Scan command from the host computer to the scanner.
The message Enabled will appear in the status display. The current
application mode and next image address will also be displayed.
IMPORTANT: Do not use the operating keys until the Warming Up
Completed message has been displayed. Entries
made before this message is displayed will not be
recognized by the scanner.

2-2A-61140 January 2000
Selecting the
language display The scanner may have been configured at installation to allow use of a
second language in the status display. The language used (French,
German, Italian, Spanish, or other) is defined during installation. If
available, the alternate language display may be accessed using
function code F19.
Calibrating the
scanner Calibration sets the intensity of the lamps, which contribute to the overall
quality of the scanned document image.
The scanner should be calibrated:
•at least once a day
•if image quality is poor
•after changing lamps
Calibrate the scanner using a calibration target (sheet of paper) that is:
•Blank
•Clean
•Matte finish (not glossy)
•White or the same color as the background color of the documents
to be scanned. When using a duplex-defined application mode,
make sure that both front and rear colors of the calibration target
correspond with the front and rear colors of the documents to be
scanned. If you are scanning a variety of colored documents, use a
white calibration target.
•Wider than the documents you are going to scan (i.e., to scan 8.5 x
11 inch (216 x 279 mm) portrait orientation documents, the
calibration target should be wider than 8.5 inches (216 mm). The
recommended width for the calibration target is 12 inches
(300 mm).
To scan 11 x 17-inch (280 x 432) documents, the calibration target
should be wider than 11 inches (279 mm) but not wider than 12
inches (305 mm).
•Between 12 and 25.5 inches (305 and 648 mm) long.
For your convenience, 12 x 12-inch calibration targets
(Part # 986527) are supplied with the scanner and are also available
from Parts Services, 1 800 431-7278.
To calibrate the scanner:
1. Verify the power switch is on and a normal operating status display
is displayed.
2. Press CAL on the control panel. A message will be displayed
prompting you to feed the calibration target.
3. Insert the calibration target into the feeder.
When calibration is successful, the status display returns to a normal
operating display.

A-61140 January 2000 2-3
Unsuccessful calibration If calibration is not successful, a message appears in the status display.
You may need to:
•Verify you are using a clean, blank sheet of paper (at least 12 inches
in length) as a calibration target. The paper must be wider than the
documents being scanned and at least 8 1/2 inches long.
•Verify there is not a document already in the document path. (Refer
to the section entitled, “Clearing the document path” in Chapter 7.)
•Clean the imaging guides. (Refer to the section entitled “Cleaning the
imaging guides” in Chapter 5.)
•Calibrate the scanner again. If calibration fails again, change the
lamps. (Refer to the section entitled, “Replacing the exposure
lamps” in Chapter 5.)
If you have done all of the above and calibration still fails, contact your
service representative.
Preparing
documents for
scanning
Before you begin processing documents, make certain the documents
may be fed through the scanner easily:
•Remove any staples, rubber bands, loose mending tape, or paper
clips from the documents to be processed.
•Straighten wrinkled edges and tape any torn documents.
•Trim ragged edges.
When using the semi-automatic feeder, make certain all documents are
of similar size, texture, thickness and weight, and the leading edges of
all documents are aligned.
Document orientation Before scanning, position all documents the way you want them to be
displayed on the host computer. Feed the documents so the text or
graphic appears to be facing in the same direction.
Document sizes The following document sizes can be scanned:
Length 2 ½ x 17 inches (64 x 432 mm). Documents between 17
and 30 inches (508 mm) long can be scanned by adjusting
the exit hopper end stops.
Width 2 ½ x 12 inches (64 x 305 mm)
Minimum document thickness:onion skin (0.0015-inch / 0.04 mm)
Maximum document thickness:index card (0.014 inch / 0.36 mm)
index card (0.040 inch / 1.00 mm)

2-4A-61140 January 2000
Adjusting the feed
and separator roller
gap (semi-automatic
feeder)
The gap adjustment knob on the control panel increases or decreases
the space between the feed and separator rollers. The gap must be
adjusted properly for smooth transportation of documents without
document overlap.
When documents of different thicknesses are fed in a group, adjust the
gap using the thinnest document in the group.
The feed and separator roller gap may have to be adjusted to
compensate for:
•Very thin documents (onion skin, tracing paper, etc.).
•Very thick documents (card stock, punch cards, cover stock).
•Some coated documents (photographic paper, plastic-coated
paper).
If the gap is not adjusted properly:
•More than one document at a time may be drawn into the transport
system at the same time; not all of the documents will be scanned.
•Documents may be drawn into the transport too quickly; documents
may overlap or be spaced too closely (causing an error display).
•Documents may become skewed during transport; jamming may
occur.
NOTE:Prior to performing the adjustment procedure, the scanner
must be calibrated and enabled.
To adjust the feed and separator roller gap:
1. Verify that the power switch is on.
2. Turn the gap adjustment knob clockwise three complete turns to
open the gap between the feed roller and separator roller.
Gap adjustment knob
3. Enter F04 and enable Counting Only.

A-61140 January 2000 2-5
4. Press Run.
5. Select two documents of the same size, texture and thickness,
similar to the types of documents you will be scanning.
6. Place one document on top of the other. Hold the documents firmly
by their trailing edges. Insert them into the gap approximately 1/8 in.
(3 mm).
Bottom document
separates from
top document
7. If the documents separate, repeat the following steps until the
documents do not separate:
•Turn the gap adjustment knob clockwise 1/2 turn.
•Insert the documents again.
If the documents do not separate, proceed with Step 8.
8. Rotate the gap adjustment knob counterclockwise 1 or 2 clicks.
IMPORTANT: Do not make a gap adjustment while documents are
in the feeder or transport system; doing so will
produce an inaccurate adjustment.
9. Hold the trailing edges of the documents firmly. Insert them into the
gap.
•If the bottom document is not separating from the top document,
remove the documents and repeat Steps 7 and 8 until the bottom
document separates from the top document by approximately 1
in. (25.4 mm).
•If the bottom document is separating from the top document,
proceed with Step 10.
10. When you have adjusted the gap so the bottom document separates
consistently from the top document, rotate the gap adjustment knob
counterclockwise another 1 or 2 clicks to complete the adjustment.
11. Feed a stack of 50 to 100 documents twice through the transport
system. Verify the final count reflects the total number of documents
fed and that the counter shows the same amount each time the
documents are counted.
If the count is not the same, the gap is not adjusted correctly. Rotate
the gap adjustment knob counterclockwise another 1 or 2 clicks and
repeat Step 9. Repeat until corrected.
12. Press Stop.

2-6A-61140 January 2000
13. Enter F04 and disable Counting only.
14. Press Enter.
Adjusting the separator
roller to scan thick
documents
To scan thick documents (card or cover stock), use the gap release
lever to increase the gap between the feed roller and separator roller.
Gap release lever
1. Press down and hold the gap release lever. This opens the gap
between the feed and separator rollers and allows thick documents
to pass between the rollers.
2. Manually feed the thick documents while holding down the gap
release lever.
Thick document

A-61140 January 2000 2-7
Adjusting the feed
shelf position (semi-
automatic feeder only)
For manual feeding, the feed shelf can be adjusted in the 0°, 30°or 40°
position. For automatic feeding, raise the feed shelf to the 30°or 40°
position.
40° position 30° position
Adjusting the side
guides Before you begin feeding documents into the scanner, adjust the
position of the side guides and feed shelf position.
•Adjust the width of the feed shelf side guides to hold the widest
document you will be scanning. Leave approximately 1/16-inch
(2 mm) clearance on each side of the largest document to allow for
proper feeding.
NOTE: Ensure that the documents are center-fed so each
document covers the 2 ½-inch required width as indicated
by the label on the feed tray.

2-8A-61140 January 2000
Adjusting the exit
hopper side guides
and end stop
The exit hopper side guides and end stop must be adjusted so
documents are stacked properly.
1. Adjust the exit hopper side guides to hold the widest document you
will be scanning. Leave ¼-inch (5 mm) clearance on each side of
the document.
2. Adjust the end stop to hold the longest document you will be
scanning.
An end stop extension is included to accommodate documents up to
17 inches in length.
To attach the end stop extension:
•Fold the spring-loaded exit hopper end stop down and slide the
extension’s tabs into the slits just above the exit hopper end
stop.
To remove the end stop extension:
•Press the spring-loaded exit hopper end stop and pull the
extension out from the exit hopper.
End stop extension
Tabs
Slits
Exit hopper
end stops

A-61140 January 2000 2-9
3. Adjust the height of the exit hopper so the scanned documents
naturally fall between the exit hopper side guides and exit hopper end
stop. The exit hopper has three height positions:
•Standard position
•10°from standard position
•20°from standard position (specifically for use with A4 size,
onion skin documents)
Standard position
10° from standard position
20° from standard position