AV620C
Color Image Scanner
User's Manual
(D/N 250-0131-E Rev. A)
Avision Inc.
Trademarks
Microsoft is a U.S. registered trademark of Microsoft
Corporation.
Windows and MS-DOS are trademarks of Microsoft
Corporation.
IBM, PC, AT, XT are registered trademarks of
International Business Machines Corp.
Other brands and product names herein are trademarks
or registered trademarks of their respective holders.
Copyright
All rights reserved. No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval
system, or translated into any language or computer
language, in any form or by any means, electronic,
mechanical, magnetic, optical, chemical, manual, or
otherwise, without the prior written permission of
Avision.
Material scanned by this product may be protected by
governmental laws and other regulations, such as
copyright laws, the customer is solely responsible for
complying with all such laws and regulations.
ii
Warranty
The information contained in this document is subject to
change without notice.
Avision makes no warranty of any kind with regard to
this material, including, but not limited to, the implied
warranties of fitness for a particular purpose.
Avision shall not be liable for errors contained herein or
for incidental or consequential damages in connection
with the furnishing, performance, or use of this material.
iii
FCC Radio Frequency Interference Statement
This equipment has been tested and found to comply
with the limits for a class B digital device, pursuant to
Part 15 of the FCC rules. These limits are designed to
provide reasonable protection against harmful
interference in a residential installation. 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 communication.
However, there is no guarantee that interference will
not occur in a particular installation. If this equipment
does cause harmful interference to radio or television
reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to
correct the interference by one or more of the
following measures:
* Reorient or relocate the receiving antenna.
* Increase the separation between the equipment and
receiver.
* Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
* Consult the dealer or an experienced radio/TV
technician for help.
CAUTION: Any changes or modifications not expressly
approved by the manufacture of this device could void
the user's authority to operate the equipment.
iv
Table of Contents
1. INTRODUCTION............................................................................1-1
2. SCANNER INSTALLATION......................................................... 2-1
2.1 PRECAUTIONS................................................................................ 2-1
2.2 UNLOCKING THE SCANNER ........................................................... 2-2
2.3 CONNECTING THE CABLE ..............................................................2-3
2.4 DOCUMENT PLACEMENT...............................................................2-4
3. SCANNER DRIVER INSTALLATION........................................3-1
3.1 AUTO-INSTALLATION PROGRAM...................................................3-1
3.2 UNINSTALL THE SCANNER.............................................................3-3
4. SCANNER OPERATION & DOCUMENT PRINTING...............4-1
4.1 IMAGE TYPE...................................................................................4-3
4.2 SCANNING PARAMETERS & IMAGE CONTROL................................ 4-5
4.3 SCANNING..................................................................................... 4-9
4.4 PRINTING..................................................................................... 4-10
5. MAINTENANCE.............................................................................5-1
6. TROUBLESHOOTING................................................................... 6-1
6.1 QUESTIONS AND ANSWERS............................................................ 6-1
6.2 TECHNICAL SERVICE...................................................................... 6-5
7. SPECIFICATIONS........................................................................... 7-1
7.1 MODEL: AV620C.......................................................................... 7-1
v
1. Introduction
Congratulations on your purchase of Avision AV620C
color image scanner. Avision is one of the leading
companies in the world to deliver high quality color
scanner.
You can scan both normal printing material including
photographs as well as the transparency and store them in
your computer. Then you can modify them for your keen
purpose on your computer and enjoy the wonderful
world of image.
The following sections introduce the unpacking,
hardware and software installation, the operation, and
maintenance information to you. Please do take a few
minutes to read through them to keep quality scanning
result possible.
Figure 1-1 shows how the scanner is packed. Please check
all the items against your checklist contained in the box or
against Figure 1-1. If there is any missing or damaged,
please contact your nearest dealer immediately for the
replacement.
1-1
1. Power Adapter, 2. Cushion 3. Manual,Driver Kit CD.
4. D25P Cable, etc 5. Scanner 6. Carton
Figure 1-1 Scanner packing
1-2
Package Contents
1. Software CD
2. Power Adapter
3. Scanner Cable
4. Quick Installation Guide
5. AV620C Scanner
1-3
2. Scanner Installation
2.1 Precautions
Ÿ Keep the scanner out of direct sunlight. Direct
exposure to the sun or excessive heat may cause
damage to the unit.
Ÿ Do not install the scanner in a humid or dusty
place.
Ÿ Be sure to use the proper AC power source.
Ÿ Place the scanner securely on an even, flat
surface. Tilted or uneven surfaces may cause
mechanical or paper-feeding problems.
Ÿ Retain the scanner box and packing materials for
shipping purposes.
2-1
2.2 Unlocking the Scanner
As shown below, unlock the scanner by moving the
scanner lock to the Use position.
1. “Use” Position 2. “Shipping” Position
Figure 2-1 Unlocking the Scanner
2-2
2.3 Connecting the Cable
Connect the power cable and signal cable as shown
below.
1. Scanner 2. Power Adapter
3. D25P Cable 4. PC Parallel Port
5. Printer Cable
Figure 2-2 AV620C scanner cable connection
2-3
2.4 Document Placement
As shown in Figure 2-3, place the document on the
glass with the text facing away from you.
1. Document Cover 2. Document Pad
3. Reference Mark 4. Document Board Glass
5. Reference Frame 6. Document
Figure 2.3 Document Placement
2-4
3. Scanner Driver Installation
To run AV620C color image scanner at optimum
speed, the following minimum requirements are
recommended:
* IBM compatible PC 386/486, Pentium or later;
* Microsoft Windows 3.1,Windows 95, Windows
NT;
* One printer port available (enhanced parallel port
recommended);
* 20 Megabytes of available hard disk space for
installation;
* 8 Megabytes of RAM (16 Megabytes or higher
recommended);
* A video graphics array (VGA) monitor;
* A Microsoft Windows-compatible pointing device
(e.g.,
mouse);
* A CD ROM drive.
3.1 Auto-Installation
Installation procedures of AV620C Scanner driver
with Avision Auto-installation Program are as
follows:
1. Start Windows 3.1 or Windows 95.
2. Insert PaperCom Deluxe for AV620C CD into
your CD ROM drive.
3-1
3.2 Manual-Installation
In Windows 3.1 or higher
3. From the File Menu, choose RUN, type
d:\driver\AV620C.exe (d represents the letter for
your current CD-ROM drive). Click O.K.
In Windows 95 or Windows NT
3. Press the Start button, choose RUN, type
d:\driver\AV620C.exe (d: the CD-ROM drive in
use), and then click O.K. (See Figure 3-1,3-2)
4. Follow the on-screen instructions to complete the
installation.
Fig. 3.1
Fig. 3.2
3-2
3.3 Uninstall the Scanner
You can uninstall the scanner by selecting
Start>Programs>Avision Scanner AV620C and
double clicking on the Uninstall command from the
Avision Scanner AV620C.
3-3
4. Scanner Operation & Document
Printing
Scanning Images from within an Application
(TWAIN)
1. Open your application and choose Select
Source from the File menu. If the Select
Source menu options are not available from
the File menu, see the user guide of your
application to learn how the TWAIN link
is used.
2. A dialog box appears containing the
different TWAIN sources that you can
choose from to bring an image into your
application.
3. Select AV620C/xx VX.xx as the source.
4. When you have used the dialog box to
select a different source, you will need to
select AV620C as the source again before
you can reuse the Avision AV620C
scanner.
5. Place the image to be scanned face down
on the glass.
6. From the File menu, select Acquire.
7. AV620C TWAIN user interface will pop
up on the screen. Click on the Preview or
Scan button to get the image.
4-1
AV620C TWAIN user interface:
4-2
Image Type
AV620C provides five image types as explain in
below:
Line art
Scanning Source Halftone
Error Diffusion
Gray
Color
Scanning Source
Two scanning sources are provided- flatbed
as well as transparency.
Line art
Line art presents the image in black and
white only and there are no intermediate
shades of gray in between.
Halftone
In addition to the black and white display,
Halftone can present a somehow gray shade
of image by using different size of dots.
Error Diffusion
While taking up but a minimum storage
space, error diffusion gives good image
texture and excellent image details.
4-3
Gray (256 levels gray scale)
Gray presents a 256 shades of gray in an
image.
Color (Internal one billion colors)
The 30 bits True Color presents 16.7 million
color and give much more tonal range and
details in a color image.
4-4
4.1 Scanning Parameters & Image Control
Resolution: The number of dpi (dots per inch) that
AV620C uses for a scan. Usually the greater
the number, the higher the resolution. Yet
up to a certain level, the resolution will not
be visually increased but the disk space will
be increased.
Brightness: Adjusts the lightness or darkness of an
image. The higher the value, the brighter the
image.
Resolution
Brightness
Contrast
Contrast: Adjusts the range between the darkest and
the lightest shades in the image. The higher
the contrast, the bigger the different gray
scales.
4-5
Auto Level
Color
Auto Area
Image Information
Descreen
Matching
Reset
Invert
Calibration
Quality Mode
Speed Mode
Pixel/Inch/Cm
Set Gama
Auto Level: Optimizes the scanned image.
Auto Area: Automatically sets the whole document as
the scan area, no matter what its size.
Descreen: Eliminates the Moire patterns commonly
found in printed matter.
Before descreen After descreen
4-6
Color Matching:
Adjusts the color quality of the image to
make it close to the original. This function
uses default parameters to adjust the image.
Reset: Resets the scanning parameters you set.
Invert: The invert command reverses the brightness
and the color in the image. For color images,
each pixel will be changed into its
complementary color at the command of
Invert.
Calibration: Defines Brightness for the scanner. Users are
recommended to calibrate the light source if
the scanned image looks undesirable or
comes out to be too dark.
Quality/Speed Mode:
Users can select the mode to perform
scanning according to their own need. Select
quality mode scanning if your emphasis is
on the quality of the scanned image. Or you
can select speed mode scanning if you want
to speed up the scanning process.
Pixel/Inch/Cm:
Represents the different measuring systems
to be used in each scan.
4-7
Set Gamma: Adjusts the midtone of the image yet
without losing details of the lightest and the
darkest areas at the same time.
Image Information:
Gives related information of the scanned
image.
4-8
4.2 Scanning
Cursor Auxiliary
Preview
Preview: Previews your image roughly and allocates
the area to be scanned.
Scan: Execute the Scans action.
Exit: Cancels the current job.
Document Size: To designate the size of your document, just
click on its icon on the margin of the
preview window.
As shown in the figure below, in the Preview window, you
can define the area to be scanned by dragging the four
cursor auxiliary lines.
Document Size
Lines
Window
4-9
4.3 Printing
Connect the printer cable as shown below.
1. Scanner 2. Power Adapter
3. D25P Cable 4. PC Parallel port
5. Printer Cable
4-10
Caution:
1. Be sure to power on the scanner if you want to do
pass-through printing.
2. Do not scan and print at the same time.
3. If your PC does not support EPP mode or have passthrough compatibility problem, please contact your
authorized local dealer for an EPP card or an additional
interface card.
4-11
5. Maintenance
Clean the Document Board Glass:
As shown in Figure 5-1, wipe the scanner glass with a
piece of soft clean cloth to rid the glass of dust or toner
particles.
1. Document Board Glass
Figure 5-1 Clean the document board glass.
5-1
6. Troubleshooting
If you have any operational problem, please
check the following troubleshooting hints.
6.1 Questions and Answers
Question: Why the scanned image always comes out
to be too dark?
Answer: 1) Modify the Gamma setting to 1.8 for
your monitor and, when printing, set
Gamma to 2.2 for your printer.
2) Use the Brightness setting of the TWAIN
user interface to get a brighter image.
Question: The scanning speed of my scanner is much
slower than that of those installed at other
computers. Can I speed it up?
Answer: Set you PC printer port to the EPP mode
from BIOS setting.
Question: Why does my scanner scan at a very low
speed?
Answer: If you have installed Works for Windows, it
will install Window Printing System (WPS)
in your WIN.INI file. This will take up the
printer port time remarkably. You can
remove the WPS from your WIN.INI file, as
follows:
6-1
From:
[MS Text Converters]
MSWorksWin=Works for Windows
2.0,C:\WINDOWS\MSAPPS\TEXTCONV\worksdos.cnv,wps
Works for Dos 2.0=Works for DOS 2.0 MSAPPS\TEXTCONV\workswin.con,wps
To:
[MS Text Converters]
MSWorksWin=Works for Windows
2.0,C:\WINDOWS\MSAPPS\TEXTCONV\worksdos.cnv
Works for DOS 2.0=Works for DOS 2.0,
C:\WINDOWS\MSAPPS\TEXTCONV\workswin.con
Question: The printer does not print the documents.
Why?
Answer: Pass-through printing may pose a problem
for some printers. It is suggested to add a
second printer card for printing purpose, or
you may call your authorized local dealer
for further support.
Question: Does it take long for the scanner to
initialize?
Answer: If your printer port supports SPP mode
only, it takes about two minutes for the
scanner to initialize. If your printer port
supports EPP mode, the initialization speed
is much faster, about 20 seconds.
6-2
Question: Why sometimes pass-through printing does
not work at all?
Answer: It may be that you fail to power on the
scanner. When doing pass-through
printing, please be sure to power on the
scanner. Else, without power, the scanner
can not transfer the printing data/signals to
the printer.
Question: Why my GDI printer does not work with
the AV620C?
Answer: Disable the Auto Scan function in the
application, then your printer will function
in normal working condition.
6-3
Question: Why some parallel port devices and
software’s keypro do not work with the
AV620C?
Answer: The AV620C can do pass-through printing
all right , but the pass-through printing
may not work if you connect the parallel
port with devices other than printer.
Therefore, if you would like to connect
some parallel port devices other than
printer, please do not connect them to the
same parallel port that AV620C currently
uses. It is suggested to use other parallel
ports to connect these devices or keypro.
For instance, you can connect the AV620C
to LPT1, and connect other parallel port
devices to LPT2. Or you can add a data
switch to avoid the problem.
6-4
6.2 Technical Service
Technical support for Avision scanner is provided
at the Avision Technical Assistance Center. Before
you contact us, please prepare the following
information for a quick solution:
Ÿ Scanner serial & revision number (located on
the bottom of the scanner);
Ÿ Hardware configuration (e.g., your host CPU
type, RAM
size, free disk space, display card, interface
card...);
Ÿ The name and version of your scanning
software application;
Ÿ The version of your scanner driver.
Please call us at:
US and Canada Area: Avision Labs, Inc.
Address: 6815 Mowry Ave. Newark CA 94560, USA
TEL: +1 (510) 793-2369
FAX: +1 (510) 793-6060
Web Site: http://www.avision.com
E-mail: avision@avision-labs.com
6-5
Taiwan Area: Avision Inc.
Address: No. 20, Creation Road I, Science-
Based Industrial Park, Hsinchu,
Taiwan, R.O.C.
Tel: 886-3-5782388.
Fax number: 886-3-5777017
BBS: 886-3-5786149
Email: service@avision.com.tw
Web Site: http://www.avision.com.tw
6-6
7. Specifications
All specifications are subject to change without
notice.
7.1 Model: AV620C
Scanner Type: Flatbed Scanner
Optical Resolution: Up to 600 dpi * 1200 dpi
Maximum Resolution: 19200 dpi
Scanning Modes: Black & White mode
Document Size A4, B5, A5, business
Interface: Printer port (supports
Power Source: 100Vac~240Vac,
Power Consumption: 12 watts (12Vdc,1A)
Dimensions: (WxDxH) 419 x 260 x 95 (mm)
Weight: 2.9kg (6.3 lbs)
(H*V)
Halftone mode (64-step)
Error diffusion
Grayscale(12 bits scanning/8
bits output)
Color(36 bits scanning/24 bits
output)
card
SPP/EPP for PC)
50~60Hz, external
7-1
EC Declaration of Conformity
According to EN45014
Manufacturer's Name: Avision Inc..
Manufacturer's Address: No. 20, Creation Road I,
Science-Based Industrial
Park, Hsin-Chu, Taiwan,
R.O.C.
declare that the product
Model Number : AV620C
conforms to the following Product Specifications:
Emission: EN 50081-1 (1992)
EN 55022 (Class B)
(Conducted Radiated)
(1994)
EN 60555-2 (Harmonics) (1987)
EN 60555-3 (Flicker) (1987)
Immunity:
EN50082-1 (1992)
IEC 1000-4-2 (ESD) (1995)
IEC 1000-4-3 (RS) (1995)
IEC 1000-4-4 (EFT/Burst)
(1995)
IEC 1000-4-5 (SURGE) (1995)
Date: December 1995
7-2
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