Ricoh G411, G410 User Manual

Page 1
G410/G411
IMAGE SCANNER
OPERATOR’S MANUAL
Page 2

Safety Information

When using your machine, the following safety precautions should be always be followed

Safety During Operation

In this manual, the following important symbols are used:
Ignoring this warning could cause serious injury or even death.
CAUTION:
Ignoring this caution could cause injury or damage to proper ty.

Examples of Indications

Symbol R means a situation that requires you take care.
Do NOT carry out the operation represented by this symbol . This example means “Do not take apart”.
Symbols mean you MUST perform this operation. This example means “You must remove the wall plug”.
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Safety Information
W arnings
••
Only connect the machine to the power source described
••
on the inside front cover of this manual.
••
Avoid multi-wiring.
••
••
Do not damage, break or make any modifications to the
••
power cord. Do not place heavy objects on it, pull it hard or bend it more than necessary. These actions could cause an electric shock or fire.
••
Do not plug or unplug the power cord with your hands wet.
••
Otherwise, an electric shock might occur.
••
Make sure the wall outlet is near the machine and easily
••
accessible so that in event of an emergency it can be unplugged easily.
••
Do not remove any covers or screws other than those
••
specified in this manual. Some parts of the machine are at a high voltage and could give you an electric shock. When the machine needs to be checked, adjusted, or repaired, contact your service representatives.
••
Do not take apart or attempt any modifications to this
••
machine. There is a risk of fire, electric shock, explosion or loss of sight.
••
If the machine looks damaged or breaks down, smoke is
••
coming out, there is a strange smell or anything looks unusual, immediately turn off the power switch then unplug the power cord from the wall. Do not continue using the machine in this condition. Contact your service representative.
••
If metal, liquid, or foreign matter falls into the machine,
••
turn off the power switch, and unplug the power cord. Contact your service representative. Do not keep using the machine with a fault or defect.
••
Do not put any metal objects or containers holding
••
water(e.g. vases, flowerpots, glasses) on the machine. If the contents fall inside the machine, a fire or electric
ii
shock could occur.
Page 4
CA UTION
Keep the machine away from humidity and dust. A fire or an electric shock might occur.
Do not place the machine on an unstable or tilted surface. If it topples over, it could cause injury.
When you move the machine, unplug the power cord from the wall outlet to avoid fire or electric shock.
When the machine will not be used for a long time, unplug the power cord.
••
When you pull out the plug from the socket, grip the plug to
••
avoid damaging the cord and causing fire or electric shock.
This machine has been tested for safety using this supplier’s parts and consumables. We recommend you only use these specified supplies.
Safety Information
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Important Information

Important Information
1. Read all of these instructions and keep them for later reference.
2. Follow all warnings and instructions marked on the machine.
3. Unplug this machine from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners.
4. Do not use this machine near water.
5. Do not place this machine on an unstable cart, stand, or table. The machine could fall and suffer serious damage.
6. Slots and openings in the cabinet and the back or bottom are provided for ventilation; to ensure reliable operation of the machine and protect it from overheating, these openings must not be blocked or covered. The openings should never be blocked by placing the machine on a bed, sofa, rug, or other similar surface. This machine should never be placed near or over a radiator or heat register . This machine should not be placed in a built-in installation unless proper ventilation is provided.
7. This machine should be operated from the type of power source indicated on the marking label. If you are not sure of type of power available, contact your dealer or local power company.
8. This machine is equipped with a 3-wire grounding-type plug, a plug having a third (grouding) pin. This plug will only fit into a grounding -type outlet. This is a safety feature. If you are unable to insert the plug into the outlet, contact your electrician to replace your outlet. Do not defeat the purpose of the grounding-type plug by removing its grounding pin. (This does not apply in countries in which a 2-wire, nongrounded type of plug is used.)
9. Do not place this machine where the cord will be walked on.
10. If an extension cord is used with this machine, make sure that the total of the ampere ratings on the devices plugged into the extension cord does not exceed the extension cord ampere rating. Also make sure that the total of all machines plugged into the wall outlet does not exceed 15 amperes.
11. Never push objects of any kind into this device through cabinet slots as they may touch dangerous voltage points or short out parts that could result in a risk of fire or electric shock. Never spill liquid of any kind on the machine.
12. Except as specifically explained in the operator’s manual, do not attempt to service this device yourself. Opening or removing those covers that are marked “Do Not Remove” may expose you to dangerous, voltage points or to other risks. Refer all servicing in those compartment to service personel.
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Important Information
13. Unplug this machine from the wall outlet and refer servicing to qualified service personal under the following conditions; A. When the power cord or plug is damaged or frayed. B. If liquid has been spilled into the machine. C. If the machine has been exposed to rain or water. D. If the machine does not operate normally when the operating instructions are followed.
Adjust only those controls that are covered by the operating instructions since improper adjustment of other controls may result in damage and will often required extensive
work by a qualified technician to restore the machine to normal operation. E. If the machine has been dropped or the cabinet has been damaged. F. If the machine exhibits a distinct change in performance, indicating a need for service.
14. Make sure that your wall outlet is close to the machine and is easily accessible. When you plug the machine into the outlet, make sure the plug is inserted firmly .
15. The main plug on this machine must be used to disconnect main power . T wo kinds of size notation are employed in this manual.
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How to Read This Manual

How to Read This Manual
In this manual, the following symbols are used:
Warning
This symbol indicates a potentially hazardous situation that might result in death or serious injury when you misuse the machine without following the instructions under this symbol. Be sure to read the instructions, all of which are described in the Safety Information section.
Caution
This symbol indicates a potentially hazardous situation that might result in minor or moderate injury or property damage that does not involve personal injury when you misuse the machine without following the instructions under this symbol. Be sure to read the instructions, all of which are described in the Safety Information section.
* The statements above are notes for your safety .
Important
If this instruction is not followed, paper might be misfeed, originals might be dam­aged, or data might be lost. Be sure to read this.
Note
This symbol indicates precautions for operation, or actions to take after misoperation.
Limitation
This symbol indicates numerical limits, functions that cannot be used together, or conditions in which a particular function cannot be used.
Reference
This symbol indicates a reference.
{}
Keys built into the machine’s operation panel.
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Table of Contents
T ab le of Contents
Safety Information ---------------------------------------------------------------------- i
Safety During Operation ----------------------------------------------------------- i Examples of Indications------------------------------------------------------------ i
Important Information ---------------------------------------------------------------- iv How to Read This Manual -----------------------------------------------------------v i
1. Introduction
Features ----------------------------------------------------------------------------------- 1
Ultra-fast scanning ----------------------------------------------------------------1 Simultaneous scanning of both sides of a document ---------------------------
(Duplex Model only) ----------------------------------------------------------- 1
Direct operation using the buttons on the scanner -----------------------------­(Manual Scanning function) ------------------------------------------------------ 1
Large 150-sheet paper capacity --------------------------------------------------1 Printing on scanned documents (optional) -------------------------------------- 1 Space-saving design --------------------------------------------------------------- 2 Supports both TWAIN and ISIS ------------------------------------------------ 2
Guide to the Scanner------------------------------------------------------------------ 3
Understanding the Indicators --------------------------------------------------- 5
2. Setting up the Scanner
Preparing for Installation ----------------------------------------------------------- 7
Checking the Scanner Location ------------------------------------------------- 7
Connecting to the Host Computer ---------------------------------------------- 10
What is SCSI? ---------------------------------------------------------------------- 1 0 SCSI Connection Requirements for the Scanner ------------------------- 10 Setting the SCSI ID --------------------------------------------------------------- 11 Connecting the SCSI Cable (No Connection to Other Port) -----------11 Connecting the SCSI Cable (Connection to Other Port) ---------------- 12
Connecting the Power Cable ----------------------------------------------------- 1 3 Turning On/Off the Scanner Power ---------------------------------------------15
Turning On the Scanner Power ------------------------------------------------15 Turning Off the Scanner Power ------------------------------------------------ 15
Initializing the Scanner -------------------------------------------------------------16
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Table of Contents
3. Setting Originals
Originals----------------------------------------------------------------------------------17
Recommended Sizes and Weights of Originals --------------------------17 Difficult to Detect Sizes-----------------------------------------------------------18 Original Sizes and Scanning Area--------------------------------------------19
Setting Originals -----------------------------------------------------------------------20
Setting the Original on the Contact Glass-----------------------------------20 Setting the Original in the Auto Document Feeder (ADF) --------------21
4. Scanning Originals
General Scanning Method --------------------------------------------------------- 25 Manual Scanning ---------------------------------------------------------------------- 26
5. Troubleshooting
When Scanning Does Not Start---------------------------------------------------27 Error Indicators and Solutions ----------------------------------------------------28 Procedures to Correct Errors in the ADF -------------------------------------29
When an Original is Jammed in
the Auto Document Feeder (ADF) -----------------------------------------29
When an Original was Not Output Properly from
the Auto Document Feeder (ADF) -----------------------------------------29
When There is a Problem with the Operation of
the Document Table ------------------------------------------------------------29
When Characters Printed by the Endorser are Too Light or
the Original Gets Dirty -----------------------------------------------------------30
Replacing the Ink Ribbon -------------------------------------------------------- 30 Cleaning the Endorser ------------------------------------------------------------ 32
viii
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Table of Contents
6. Appendices
Maintenance ----------------------------------------------------------------------------33
Cleaning the Scanner ------------------------------------------------------------ 3 3
Cleaning the Contact Glass, Slit Glass, White Sheet, and Platen ---------- 34 Cleaning the Feed Roller and Drum ------------------------------------------- 34 Cleaning the White Roller (Duplex Model Only) ---------------------------- 36
Moving the Scanner -------------------------------------------------------------- 3 8
Carrying the Scanner a Short Distance ---------------------------------------- 39 Shipping the Scanner ------------------------------------------------------------ 39
Disposing of the Scanner -------------------------------------------------------39
Options -----------------------------------------------------------------------------------40
Image Processing Unit Type A -------------------------------------------------4 0 Red Lamp Unit Type A -----------------------------------------------------------40 Endorser Unit Type A(Printing Function) ------------------------------------ 4 1
Specifications --------------------------------------------------------------------------42
Scanner Electrical and Hardware Specifications ------------------------- 4 2
DIP Switches----------------------------------------------------------------------------43 Functions --------------------------------------------------------------------------------44
Preview-------------------------------------------------------------------------------44 Scan-----------------------------------------------------------------------------------45 Scanning Composition ----------------------------------------------------------- 4 5 Binary Scanning/Threshold ----------------------------------------------------- 4 6 Halftone Scanning ---------------------------------------------------------------- 47 Gray Scale Scanning -------------------------------------------------------------48 Area Extraction ---------------------------------------------------------------------49 Section Area (Multi-area Settings) --------------------------------------------50 Auto Photo/Letter ------------------------------------------------------------------51 Resolution ---------------------------------------------------------------------------52 Brightness ---------------------------------------------------------------------------53 Contrast ------------------------------------------------------------------------------53 Gamma Correction ---------------------------------------------------------------- 5 4 Binary Filters ------------------------------------------------------------------------55 Parameter Download ------------------------------------------------------------- 5 5 Document Size Detection ------------------------------------------------------- 5 6 Erase Background ---------------------------------------------------------------- 57
Index --------------------------------------------------------------------------------------- 5 8
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x
Page 12

1. Introduction

Features

This section describes the features of this scanner.

Ultra-fast scanning

When scanning A4K (8½” × 11”K), monochrome at 200dpi, this scanner can scan 55 (57) pages/minute. When scanning A4K (8½” × 11”K), monochrome at 400dpi, this scanner can scan 31 (32) pages/minute. During double-sided scanning, when scanning A4K (8½” × 11”K), monochrome at 200dpi, this scanner can scan 81 (84) pages/minute.
* When using the Auto Document Feeder (ADF) in binary scanning, these speeds apply to
the second and subsequent sheets.

Simultaneous scanning of both sides of a document (Duplex Model only)

If a document consists of individual, separate sheets, both sides of each sheet can be scanned simultaneously. This capability eliminates the bother of having to flip document sheets over.

Direct operation using the buttons on the scanner (Manual Scanning function)

If using a driver that supports the Manual Scanning function, scanning can be initiated by pressing the {Start} button on the scanner . This function is useful when scanning a document that needs to be set in place for each scan.

Large 150-sheet paper capacity

Up to 150 sheets* can be placed in the scanner’s Auto Document Feeder (ADF). * A4 (64g/m2) or 8½” × 11” (20lb)

Printing on scanned documents (optional)

The Endorser Unit Type A is provided as an optional mechanism that prints a symbol or the number of documents that have been scanned by the Auto Document Feeder (ADF). This capability is useful for referencing scanned data or confirming that a document has been scanned.
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1. Introduction

Space-saving design

This scanner is designed in a “wingless” style, in which there are no protruding elements, such as a document tray. This design allows the scanner to be set up next to a wall, and permits office space to be used more effectively .

Supports both TWAIN and ISIS

The scanner supports both the standard TWAIN and the newer ISIS driver, allowing the scanner to function with a wide range of software.
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Guide to the Scanner

Guide to the Scanner
2
3
4
5
6
7
8
9
1. Auto Document Feeder (ADF)
This is used to automatically feed and scan documents.
2. Document Table
Documents that are to be scanned by the Auto Document Feeder (ADF) are placed here.
3. Auxiliary Table
This table can be extended outwards when placing large documents in the Auto Docu­ment Feeder (ADF).
4. Endorser Cover
Open this cover in order to clean the En­dorser (printing function) or replace the ink.
5. Output Table
After a document has been scanned by the Auto Document Feeder (ADF), it is output here.
10
TH2H010E
6. Stopper
This stops documents that have been scanned and output by the Auto Docu­ment Feeder (ADF).
7. Power Switch
This switch is used to turn the scanner power on and off.
{{
8.
{Clear Modes
{{
This button is used to stop manual scan­ning.
{{
9.
10. Scanner Indicators
}}
{Start
} Button
{{
}}
This button is used to start manual scan­ning.
These indicators can be used to check the status of the scanner.
}}
} Button
}}
1
3
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1. Introduction
TH2H020E
1
2
1. White Sheet
This presses the document down on the contact glass.
2. Contact Glass
This is where the document is placed.
3. ADF Cover
Open this cover to clear paper jams, etc.
4. Power Connector
Connect the power cable here.
5. Rotar y Switch
This switch is used to set the SCSI ID.
6. SCSI Connector
Connect the SCSI interface cable here.
4
3
456789
7. Interface for Reverse Side Scan­ning
This is an extension interface for reverse side scanning. (Duplex Model only)
8. DIP Switches
These switches are used to set the operat­ing mode.
9. Reset Switch
This switch resets the scanner as if the power had been turned off and then back on again. This switch is used to make new DIP switch and rotary switch set­tings valid.
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Understanding the Indicators

The scanner has the following indicators:
Guide to the Scanner
TH2H030E
1: Power On 2: Machine Busy 3: Document in Place 4: Error
When the scanner is in a normal operating state, the indicators will light in one of the combina­tions shown below . If the indicators light in any other pattern, an error has occurred. Refer to p. 28, “Error Indicators and Solutions.”
❍❍❍❍When the power has just been turned on, or the
❍●●●When there is no document in the Auto Docu-
❍●❍●When there is a document in the Auto Document
❍❍●●When scanned data is being transferred (and there
❍❍❍●When scanned data is being transferred (and there
❍●✕●When the scanner is ready for manual scanning ✕●●●When the scanner is ready by Low Power Mode
:On: Flashing
: Off
1
2
3
4
Description
Reset switch has been pressed (This combination is displayed only for a few seconds.)
ment Feeder, and no document is being scanned
Feeder, but the document is not being scanned
is no document in the ADF)
is a document in the ADF)
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1. Introduction
6
Page 18

2. Setting up the Scanner

This chapter explains the preparations that are necessary in order to use the scanner.

Preparing for Installation

Checking the Scanner Location

Set up the scanner in a location that satisfies the following conditions:
❖❖
Setup location
❖❖
Warning:
••
Make sure the wall outlet is near the machine and easily
••
accessible so that in event of an emergency it can be unplugged easily.
Caution
Keep the machine away from humidity and dust. A fire or an electric shock might occur.
Do not place the machine on an unstable or tilted surface. If it topples over, it could cause injury.
Set up the scanner on a flat, stable surface.
The surface must be level to within 5mm ( 0.2”) on all sides.
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2. Setting up the Scanner
❖❖
Installation space
❖❖
Set up the scanner in a location where there is enough space to provide the clearance shown in the figure below .
❖❖
Installation environment
❖❖
Important
Do not set up the scanner in any of the types of locations listed below. Doing so
could cause the scanner to malfunction.
In a location exposed to direct sunlight
In a location where the scanner will be subjected to blowing air or radiant heat,
such as near an air conditioner or heater
In a location near other electronic devices, such as a radio or television set
In a location subject to extreme temperatures or humidity
Near a humidifier
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Preparing for Installation
Set up the scanner in a location where the temperature and humidity will fall within the ranges shown below.
%RH
%RH
10°C 80%
80
60
40
20
80
60
40
20
15°C 70%
15°C 30%
10°C 15%
10
50°F 80%
59°F
70%
59°F
30%
50°F 15%
50 80 90
20
60 70
27°C 80%
25°C 70%
25°C 30%
32°C 15%
30
Recommended rangeUsable range
80.6°F 80% 77°F
70%
77°F
30%
89.6°F 15%
Recommended rangeUsable range
32°C 54%
°C
TH2H061E
89.6°F
54%
°F
TH2H070E
Important
Save the box and cushioning material in which the scanner was packed so that they
can be used if it is necessary to transport the scanner in the future.
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2. Setting up the Scanner

Connecting to the Host Computer

This scanner connects to a host personal computer through a SCSI interface. This section provides an overview of SCSI, and explains how to connect the scanner to a host computer.

What is SCSI?

“SCSI” (Small Computer System Interface) is an interface standard that is used for high­speed data transfer between a peripheral device and a host computer.
In a SCSI connection, ANSI-compliant
SCSI cables are used to connect one or more peripheral devices in daisy chain fashion to the host computer.
Each device is assigned a unique SCSI
ID (0 to 7), which must be set for the device before turning on the power and before turning on the computer.
The last device in the daisy chain requires
a terminator.
1: SCSI cables 2: Up to 7 devices 3: Terminator
Important
If two or more devices in a daisy chain
share the same SCSI ID, misoperation and data loss may result. Set a unique SCSI ID for this scanner that does not duplicate the SCSI ID of any other de­vice.
SCSI Connection Require­ments for the Scanner
This scanner complies with the SCSI-2
standard. SCSI-1-compliant peripheral devices can also be connected and used with this scanner. T he SCSI interface on the scanner has a 50-pin half-pitch (pin type) connector. Connect an ANSI­compliant shielded SCSI-2 cable to the scanner. Note that some combinations of cables and SCSI boards will not work together properly, so check this carefully .
If you are using a SCSI board and driver
software that supports SCAM, the SCSI ID of this scanner will be set automati­cally, so there is no need to set the ID. If you are using a driver that does not have a SCAM function, it will be necessary to set the SCSI ID for the scanner if the SCSI ID is identical to that of another device that is connected.
The scanner’s terminator can be enabled
or disabled by turning a DIP switch on or off.
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Connecting to the Host Computer
Important
The total length of the SCSI cables, in-
cluding the length of the cable inside the personal computer, should be no more than 3m (9.8 ft.) when using syn­chronous transfer, and no more than 6m (19.7 ft.) when using asynchronous transfer.
Some combinations of SCSI boards and
peripheral devices that are connected simultaneously may not work together properly.

Setting the SCSI ID

T urn the r otary switch to set the SCSI
A
ID number.

Connecting the SCSI Cable (No Connection to Other Port)

Turn off the host computer and all
A
peripheral devices that will be con­nected through the SCSI interface.
Use SCSI cables to connect the per-
BB
B
BB
sonal computer and the peripheral de­vices in daisy chain fashion, with this scanner at the end of the daisy chain. (Use either of the two SCSI connec­tors on the scanner.)
Set DIP switch 3 to off.
CC
C
CC
This enables the scanner’s internal termi­nator. F or details on the functions of the DIP switches, refer to P.43, “DIP Switches.”
Note
If you change the setting while the
power is on, it is necessary to initialize the scanner. Refer to P.16, “Initializ­ing the Scanner.”
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2. Setting up the Scanner

Connecting the SCSI Cable (Connection to Other Port)

T urn off the host computer and all pe-
AA
A
AA
ripheral devices that will be connected through the SCSI interface.
Use SCSI cables to connect the per-
BB
B
BB
sonal computer and the peripheral de­vices in daisy chain fashion, with this scanner in the middle of the daisy chain.
Set DIP switch 3 to on.
CC
C
CC
This disables the scanner’s internal termi­nator. F or details on the functions of the DIP switches, refer to P.43, “DIP Switches.”
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Connecting the Power Cable

Connecting the Power Cable
This section explains how to connect the power ca ble to the scanner .
Warning
••
Only connect the machine to the power source described
••
on the inside front cover of this manual.
••
Avoid multi-wiring.
••
••
Do not damage, break or make any modifications to the
••
power cord. Do not place heavy objects on it, pull it hard or bend it more than necessary. These actions could cause an electric shock or fire.
••
Do not plug or unplug the power cord with your hands wet.
••
Otherwise, an electric shock might occur.
Warning
••
Be sure to ground the scanner. Failure to ground the
••
scanner could result in fire or electric shock. If there is no ground connection available, consult your dealer.
Caution
When you pull out the plug from the socket, grip the plug to avoid damaging the cord and causing fire or electric shock.
Confirm that the power switch is off.
AA
A
AA
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2. Setting up the Scanner
Push the power cable plug all of the way into the power connector on the scanner.
BB
B
BB
Note
Use the power cable that was provided with this scanner.
Plug the other end of the power cable into the power outlet.
CC
C
CC
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Turning On/Off the Scanner Power

Turning On/Off the Scanner Power

Turning On the Scanner Power

When turning on the power, turn on each device in the daisy chain one by one, starting from the device that is at the opposite end of the daisy chain away from the host computer and working towards the host computer. T urn on the host computer last.
Press the power switch so that it is in the “Power On” position as shown below.
AA
A
AA

Turning Off the Scanner Power

Press the power switch so that it is in the “Power Off” position as above.
AA
A
AA
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2. Setting up the Scanner

Initializing the Scanner

If the SCSI ID rotary switch or DIP switch settings have been changed while the power is on, it is necessary to initialize the scanner in order to put the new settings into effect. To initialize the scanner, either turn the power off and then back on again, or else perform the procedure described below:
Using an object with a thin tip, such as a ballpoint pen, press the reset switch located
AA
A
AA
on the back of the scanner.
Doing so puts the scanner into the same state as if the power had been turned off and then back on again.
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3. Setting Originals

This section explains how to set originals that are to be scanned in the scanner . Originals can be set either on the contact glass or in the Auto Document Feeder (ADF). The Auto Document Feeder (ADF) is useful when you want to scan multiple originals consecutively .

Originals

Recommended Sizes and Weights of Originals

Where original is set Original size
Contact glass Up to A3
Up to 11" x 17"
Auto Document Feeder (ADF) Maximum:A3K
Minimum:69 x 120mm Maximum:11” x 17”K
Minimum:2.75” x 4.75”
❖❖
Originals that cannot be set in the Auto Document Feeder (ADF)
❖❖
Setting an original that falls in one of the following categories in the Auto Document Feeder (ADF) could result in a paper jam or in damage to the original. Such originals should be placed on the contact glass.
An original that does not fall within the “Recommended Sizes and Weights of
Originals”
An original that includes staples, paper clips, glue, or other adhesives
An original that has holes or is torn
An original that is warped, creased, or wrinkled
An original that is pasted together
An original that has some sort of surface treatment, including thermal paper, art
board, silver paper, carbon paper, or conductive paper.
An original that has index tabs, stick-on notes, or other protrusions
An original on paper that does not slide easily, such as tracing paper
An original on thin, fragile paper
An original that is not of a suitable thickness, such as a postcard “Recommended Sizes and Weights of Originals”
An original that is bound, such as a book
Original weight
---
41 ~ 128g/m
11 ~ 34lb
2
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Page 29
3. Setting Originals
An original that is highly transparent, such as transparencies or tracing paper
An original that has markedly curled edges, such as shown below
5mm(0.2") or more
10mm(0.4") or more

Difficult to Detect Sizes

When the optional Image Processing Unit T ype A is installed, the scanner can automatically detect the size of an original. However, the sizes of the following types of originals are difficult to detect properly, even if using a scanner driver that supports automatic detection of the size of the original:
An original that has index tabs, stick-on notes, or other protrusions
An original that is highly transparent, such as transparencies or tracing paper
Documents on a dark background
Documents with text, illustrations, or filled in portions on the leading edge
An original that is not A3K, B4K, A4K, B5K, A5K, B6K, A6K, DLTK, LTK, or
HLTK (when set on the contact glass)
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Original sizes that can be detected automatically
Original size Paper sizes used in Japan Paper sizes used overseas Irregular sizes
Where original KKKLKLKLKLK (DTL)K (LG) K (LT) K (LT) L (HLT) K (HLT) K
is placed Contact glass ✔✔✔ ✔ ✔ ✔ ✔ Auto Document
Feeder (ADF)
A3 B 4 A4 A4 B 5 B 5 A5 A 5 B6 B 6 A6 11”x17” 8½”x14” 8½”x11” 8½”x5½” 8½”x5½” 8½”x5½”
✔✔✔✔✔✔✔✔✔✔✔ ✔✔✔✔✔ ✔

Original Sizes and Scanning Area

❖❖
Contact glass
❖❖
❖❖
Auto Document Feeder (ADF)
❖❖
Originals
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Page 31
3. Setting Originals

Setting Originals

Setting the Original on the Contact Glass

Caution
••
Be careful not to pinch your fingers when closing the Auto
••
Document Feeder (ADF).
Open the Auto Document Feeder (ADF).
AA
A
AA
With the side to be scanned facing down, place the original on the contact glass, and
BB
B
BB
align it with the home position and scale.
1: Home position 2: Scale
Important
Do not press down on the contact glass. Strong localized pressure on the contact glass
could cause it to break.
Gently close the Auto Document Feeder (ADF).
CC
C
CC
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Page 32
Setting Originals

Setting the Original in the Auto Document Feeder (ADF)

Note
Do not set originals in the Auto Document Feeder (ADF) in excess of the upper limit
mark. (Stacked height: Not more than 15mm (0.6"))
The number of sheets that can be set in the Auto Document Feeder (ADF) at one time
depends on the size and weight (thickness) of the originals. Use the following table as a guide:
thgiehdekcatSthgieWeziS
2
m/g501
mm51
)"6.0(
)bl42(
2
m/g46
)bl02(
,5A,4A
)TLH,TL(
3A
)TLD(
3A,5A,4A
)TLD,TLH,TL(
forebmuN
nactahtsteehs
teseb
011
08
051
Limitation
When the original has a dark background, the scanner may not be able to recognize
that a document has been placed in the ADF. If this happens, place the document on the contact glass instead.
Align the originals on the ADF.
AA
A
AA
When scanning large originals, pull out the auxiliary table.
Adjust the stopper on the output table according to the size of the originals.
1: Auxiliary table 2: Stopper
21
Page 33
3. Setting Originals
Note
When scanning an original that is A5K(HLTK) size or smaller, pull the stopper out of the
output table, turn it around, slide it back into the table, and adjust the position. (Refer to the diagram below .)
Important
When the stopper is extended, do not grasp the stopper when opening or closing the
Auto Document Feeder (ADF).
Put the originals in order. If they are to be scanned in page sequence, put them in
BB
B
BB
order as illustrated below .
Simplex scanning
22
Duplex scanning
Page 34
Setting Originals
Fan the sheets, and then line up their edges.
CC
C
CC
With the first page facing up on top, place the originals in the A uto Document F eeder
DD
D
DD
(ADF), and adjust the positions of the guides so that they touch the edges of the original.
1: Guides
23
Page 35
3. Setting Originals
24
Page 36

4. Scanning Originals

General Scanning Method

Scanning of an original is initiated by software that is TWAIN or ISIS compatible. The method of operation depends on the software. For details, refer to the manual that was supplied with your software.
Limitation
When using double-sided scanning, if the leading edge of the reverse side of the document is
dark, the scanned image may appear whitish.
25
Page 37
4. Scanning Originals

Manual Scanning

By setting up a scanner driver that supports the manual scanning function, scanning can be initiated by pressing the {Start} button. If the manual scanning function is used, then communications between the scanner and the personal computer are no longer needed in cases where it is necessary to set the original in the scanner one sheet at a time, for example.
Set the manual scanning function through the scanner driver.
AA
A
AA
Set the original in the scanner.
BB
B
BB
{{
Press the
CC
C
CC
1: {Clear Modes} Button 2: {Start} Button
}}
{Start
} button. To end manual scanning, press the
{{
}}
TH2H220E
{{
{Clear Modes
{{
}}
} button.
}}
26
Page 38

5. T roubleshooting

When Scanning Does not Start

If scanning does not start, check the following:
Item to check Action
Is the power on? Turn on the power . Is the SCSI ID set properly? If there are any other SCSI devices
connected, the host computer may not be able to recognize the scanner if it has the same SCSI ID as another device. Refer to P.11, “Setting the SCSI ID,” and set a unique SCSI ID for the scanner.
Are the DIP switches set properly? The correct DIP switch settings depend on
whether this scanner is the last device in the SCSI daisy chain. Refer to P.11, “Connecting the SCSI Cable,” and set the DIP switches properly.
Are the SCSI cables connected securey? If any cables are disconnected, connect
them.
Are the indicators on or flashing? The nature of an error can be determined
according to the pattern in which the four indicators are on or flashing. Refer to P.28, “Error Indicators and Solutions. ”
Is the scanner driver selected properly? For details on scanner driver setup, refer to
the manual or help information for your scanner driver .
Are the software settings correct? For details on software settings, refer to the
manual or help information for your software.
27
Page 39
5. Troubleshooting

Error Indicators and Solutions

When the indicators are on or flashing in any of the following combinations, an error has occurred. After conf irming the nature of the error, tak e the appropriate action.
Description of error
❍●● ❍The Auto Document Feeder
(ADF) or the ADF cover is not closed properly .
❍●✕ ❍An original is jammed in
the Auto Document Feeder (ADF).
❍●❍ ❍An original was not output
properly from the Auto Document Feeder (ADF).
❍●✕ ✕There is a problem with the
operation of the document table.
✕✕❍ ●The Endorser (printing
function) may have malfunctioned.
✕✕✕ ✕System error
:On: Flashing
: Off
Action
Close the Auto Document Feeder (ADF) or the ADF cover.
Refer to P.29, “Procedures to Correct Errors in the ADF ,” and remove the jammed paper.
Refer to P.29, “Procedures to Correct Errors in the ADF ,” and remove the paper that was not output.
Refer to P.29, “Procedures to Correct Errors in the ADF” and open and close the ADF cover.
Try opening and closing the Auto Document Feeder (ADF) several times. If the same error occurs, contact a service center.
Contact a service center.
28
Page 40

Procedures to Correct Errors in the ADF

Procedures to Correct Errors in the ADF

When an Original is Jammed in the Auto Document Feeder (ADF)

Open the ADF cover.
AA
A
AA
Turn the drum knob in the direction
BB
B
BB
indicated by the arrow.
1: Knob 2: Feed roller
Remove the original from the output
CC
C
CC
table.
When an Original was Not Out­put Properly from the Auto Docu­ment Feeder (ADF)
Open the ADF cover.
AA
A
AA
Pull out the original.
BB
B
BB
When There is a Problem with the Operation of the Docu­ment Table
Remove the original from the Auto
AA
A
AA
Document Feeder (ADF). Open the ADF cover.
BB
B
BB
Note
If the leading edge of a original is
jammed in the feed rollers, grasp the leading edge of the original and gently pull it out in the direction of the ADF cover.
Close the ADF cover.
CC
C
CC
29
Page 41
5. Troubleshooting

When Characters Printed by the Endorser are Too Light or the Original Gets Dirt y

Replacing the Ink Ribbon

Caution
When you pull out the plug from the socket, grip the plug to avoid damaging the cord and causing fire or electric shock.
Replace the ink ribbon if the Endorser’s printing becomes too light.
Turn off scanner power, and unplug the power cable from the power outlet.
AA
A
AA
Flip open the Endorser cover (located towards the rear of the output table), and pull
BB
B
BB
the cover out.
30
Grasp the green portion of the Endorser, and turn it in the direction indicated by the
CC
C
CC
arrow until it clicks.
Page 42
When Characters Printed by the Endorser are Too Light
or the Original Gets Dirty
Raise the rear portion of the Endorser ,
DD
D
DD
and then pull the Endorser out.
Important
Do not pull on the Endorser’s cord.
Place the Endorser down with the
EE
E
EE
printing section facing up.
Important
Do not touch the printing section of the
Endorser. Doing so may get your fin­gers dirty , and could damage the printing section.
Gently press the old ink ribbon car-
FF
F
FF
tridge down
Push a new ink ribbon cartridge into
GG
G
GG
the Endorser.
Align the endorser with the hooks on
HH
H
HH
the scanner as shown in the diagram.
, and then pull it out
➀➀
➀➀
.
➁➁
➁➁
31
Page 43
5. Troubleshooting
Push the Endorser in until it clicks,
II
I
II
and tuck the Endorser’s power cord into the appropriate hook.
Slide the protrusion on the bottom of
JJ
J
JJ
the cover into the output table, and then push the cover closed.

Cleaning the Endorser

If paper scraps and dust accumulate in the vicinity of the printing section of the En­dorser, printing quality will be adversely affected. If the printing section becomes dirty , gently wipe the portion shown in white in the illustration below with a dry, soft cloth.
Important
Do not wipe any portion other than that
which is shown in white above. In addi­tion, do not touch the printing section. Doing so may get your fingers dirty , and could damage the printing section.
32
Page 44
Maintenance
Cleaning the Scanner
Warning
••
Do not remove any covers or screws other than those
••
specified in this manual. Some parts of the machine are at a high voltage and could give you an electric shock. When the machine needs to be checked, adjusted, or repaired, contact your service representatives.
••
Do not take apart or attempt any modifications to this
••
machine. There is a risk of fire, electric shock, explosion or loss of sight.
Caution
When you pull out the plug from the socket, grip the plug to avoid damaging the cord and causing fire or electric shock.

6. Appendices

Periodic cleaning is required in order to maintain this scanner in good condition. First, wipe away any dirt with a dry, soft cloth. If the dirt cannot be removed with a dry cloth, moisten a soft cloth with water, wring it out thoroughly , and then wipe away the dirt. If water is not sufficient to remove the dirt, wipe off the dirt with a mild detergent solution, then wipe the detergent away with water, and then wipe the area with a dry cloth until all moisture has been removed.
Important
Do not use volatile chemicals such as benzene or paint thinner to clean the scanner, and do
not spray insect sprays, etc., on the scanner. Such chemicals could deform, discolor, or crack scanner components.
If there is any dust or dirt inside the scanner, wipe it away with a dry , clean cloth.
33
Page 45
6. Appendices

Cleaning the Contact Glass, Slit Glass, White Sheet, and Platen

Caution
••
Be careful not to pinch your fingers when closing the Auto
••
Document Feeder (ADF).
Turn off scanner power, and unplug the power cable from the power outlet.
AA
A
AA
Wipe these components with a soft, dry cloth.
BB
B
BB
1: White Sheet 2: Platen 3: Slit Glass 4: Contact Glass
Cleaning the Feed Roller and Drum
34
Turn off scanner power, and unplug the power cable from the power outlet.
AA
A
AA
Open the ADF cover, and then while turning the feed roller and drum by hand, wipe
BB
B
BB
them with a damp cloth that has been thoroughly wrung out. To turn the drum, turn the blue knob.
1: Feed Roller 2: Drum 3: Knob
Page 46
Maintenance
Note
Always clean the feed roller after scanning an original that was written in pencil or with
some other material that is not solidly fixed on the paper . If you do not clean the feed roller, it may dirty the next original that is scanned.
35
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6. Appendices

Cleaning the White Roller (Duplex Model Only)

If white stripes (in the normal paper direction) appear in the image from the reverse side of the original when a double-sided document is scanned, clean the white roller according to the procedure described below .
Turn off scanner power, and unplug the power cable from the power outlet.
AA
A
AA
Open the A uto Document F eeder (ADF), and pull off the white sheet (which is held in
BB
B
BB
place by cellophane tape).
While turning the blue knob on the drum in the direction indicated by the arrow , wipe
CC
C
CC
the white roller with a damp cloth that has been thoroughly wrung out.
36
1: White roller 2: Drum
Place the white sheet on the contact glass with the reverse side facing up.
DD
D
DD
Page 48
Maintenance
Align the arrow on the reverse side of the white sheet with the document home
EE
E
EE
position.
Note
Make sure that the white sheet does not lie on the scales.
1: Home position 2: Scales
Gently close the Auto Document Feeder (ADF), and press it down on it firmly.
FF
F
FF
Open the Auto Document Feeder (ADF) again, and rub a cloth against the entire
GG
G
GG
surface of the white sheet.
37
Page 49
6. Appendices

Moving the Scanner

Caution
••
The scanner weighs a maximum 29kg. When moving the
••
scanner, always hold it with the Auto Document Feeder (ADF) against yourself, and lift it up slowly so as not to strain yourself. Trying to lift the scanner even though it is too heavy for you, or handling the scanner carelessly and dropping it can result in injury.
••
When it is necessary to move the scanner a long distance,
••
contact a service center.
Caution
When you move the machine, unplug the power cord from the wall outlet to avoid fire or electric shock.
When the machine will not be used for a long time, unplug the power cord.
Caution
When you pull out the plug from the socket, grip the plug to avoid damaging the cord and causing fire or electric shock.
The minimum time for which will be kept inventories of replacement parts needed for
maintenance services is seven years from the date that a model goes out of production. Accordingly, after this period has elapsed, it may not be possible to accept a unit for repairs.
If you contact a service center, they will prepare the scanner for safe shipment for you.
However , you will be responsible for the actual packing and shipping of the scanner .
38
Page 50
Maintenance

Carrying the Scanner a Short Distance

Turn off scanner power, and unplug the power cable from the power outlet.
AA
A
AA
Disconnect the SCSI cables.
BB
B
BB
Grasping the scanner on the sides, above the bottom, and with the Auto Document
CC
C
CC
Feeder (ADF) closest to yourself, carry the scanner to its new location.
Important
When carr ying the scanner, try to keep it as level as possible.

Shipping the Scanner

When shipping the scanner, pack it in its original shipping carton.
Important
Disconnect all cables.Because the scanner is a precision instrument, pack it carefully so that it will not be
damaged while in transit.

Disposing of the Scanner

When you wish to dispose of your scanner, contact your dealer or a service center .
39
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6. Appendices

Options

This section describes options that are sold separately .

Image Processing Unit T ype A

Note
The Image Processing Unit Type A is an option. If this option is used, the following image processing features become possible:
Dynamic Threshold
This function automatically determines a suitable threshold value on the basis of the brightness of the original, and converts the scanned image to binary data.
Limitation
During double-sided scanning, this function is valid only for the front side of the original.
Auto Photo/Letter
This function automatically identifies the text portions of an original and the photographic portions, and scans each in a suitable scan mode.
Limitation
During double-sided scanning, this function is valid only for the front side of the original.
Document Size Detection
This function automatically detects the width of an original, and sends the information to the host computer.
Section Area
This function selects an area within an original and sets scanning conditions for that area.
Limitation
During double-sided scanning, this function is valid only for the front side of the original.
For details on installing the Image Processing Unit T ype A, refer to the supplement, “Setting up the Image Processing Unit T ype A. ”

Red Lamp Unit T ype A

Note
The Red Lamp Unit Type A is an option. The Red Lamp Unit Type A can be used to
eliminate red elements, such as marker or red pen. T o install or replace the Red Lamp Unit T ype A, contact your dealer or a service center .
40
Page 52
Options

Endorser Unit T ype A (Printing Function)

Note
The Endorser Unit Type A (Printing Function) is an option for some models, and is
standard equipment on other models.
The Endorser Unit T ype A (printing function) can print a symbol or number on originals that ha ve been scanned by the Auto Document Feeder (ADF). The Endorser Unit Type A (printing function) settings are made through the scanner driver . F or details on ho w to set the Endorser Unit T ype A, refer to the manual and help provided for the scanner driv er that you will be using.
41
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6. Appendices

Specifications

Scanner Electrical and Hardware Specifications

T yp e Desktop flatbed scanner Scanning methods Fixed original scanning and moving original scanning Scanning area Main-direction: 298mm (11.7”) max.
Sub-direction: 432mm (17”) max.
Resolution Main-scanning: 400dpi
Sub-scanning: 400dpi Gray scale 8 bits/pixel Scanning time 0.65 seconds (A4K/200dpi/binary)
0.62 seconds (L TK/200dpi/binary)
Scanning speed Simplex Model: 55ppm (A4K/200dpi/binary)
57ppm (L TK/200dpi/binary)
Duplex Model: 81ppm (A4K/200dpi/binary)
84ppm (L TK/200dpi/binary)
*ppm: pages per minute W arm-up time Max. 15 seconds Interface SCSI-2 50-pin half-pitch (pin type) x 2 Power consumption Simplex Model:
50W maximum when in standby (options installed) 90W maximum when operating (options installed)
Duplex Model:
80W maximum when in standby (options installed) 120W maximum when operating (options installed)
Size 470mm (W) x 677mm (D) x 278mm (H)
18.5” (W) x 26.7” (D) x 10.9” (H)
W eight Simplex Model: Approximately 25kg (55.1lb)
Duplex Model: Approximately 29kg (63.9lb)
(Add 2kg (4.4lb) when the Endorser Unit T ype A is installed.)
42
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DIP Switches

DIP Switches
Only the settings of DIP switches 1 through 3 can be changed. Do not change the settings of the other switches.
Leave these set to “OFF;” do not change.
OFF: Internal SCSI terminator on ON: Internal SCSI terminator off
OFF: SCSI synchronous transfer
enabled
ON: SCSI synchronous transfer
disabled
OFF: SCAM function enabled ON: SCAM function disabled
Important
If multiple devices that support the SCAM function are connected on the same daisy
chain, the host will not be able to recognize the IDs. In this case, set DIP switch 1 to “ON” (SCAM function disabled), and set the SCSI ID with the rotary switch.
If the daisy chain is too long, or if a nonstandard SCSI cable is used, misoperation may
occur during synchronous transfer. In this case, set DIP switch 2 to “ON” (SCSI synchronous transfer disabled).
If this scanner is connected in the middle of a daisy chain, set DIP switch 3 to “ON”
(internal SCSI terminator off).
43
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6. Appendices

Functions

The scanner driver can be used to perform the following image processing functions:
Preview (P .44) Scan (P.45) Scanning Composition (P.45) Binary Scanning/Threshold (P.46) Halftone Scanning (P .47) Gray Scale Scanning (P .48) Area Extraction (P .49) Section Area (Multi-area Settings) (P .50) Auto Photo/Letter (P.51) Resolution (P .52) Brightness (P.53) Contrast (P.53) Gamma Correction (P .54) Binary Filters (P .55) Parameter Download (P .55) Document Size Detection (P .56) Erase Background (P .57)
Note
The scanner operates according to the scanner driver settings, but some scanner driv-
ers do not support all of the scanner functions. In such a case, the unsupported func­tions are not available for use. In addition, the names used in this manual for certain functions may differ from the names used by the scanner driver. For details, refer to the scanner driver manual.

Preview

This function scans the entire scanning area at low resolution (100dpi*). The preview image can then be viewed while setting the scanning area for the final scan. The preview function can also be used to get a quick view of the scannable area.
* “dpi” is an abbreviation for “dots per inch,” and indicates resolution. A larger v alue indicates
greater detail.
44
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Functions

Scan

This function scans an original once the scanning area, scanning composition, resolution, and other values have been set. When setting these values, consideration should be given to the original that is to be scanned and to the output device (display , printer, etc.). F or example, it is meaningless to scan an original at high resolution if the resolution of the output device is lower than the scanning resolution, especially because high-resolution scanning uses a great deal of memory and requires more processing time.

Scanning Composition

There are three scanning composition modes: binary scanning, halftone scanning, and multi­value scanning.
❖❖
Binary scanning
❖❖
This mode scans the original in black and white. This mode is used to scan originals that consist only of text, line drawings, and other elements that lack intermediate colors.
❖❖
Halftone scanning
❖❖
This mode scans the original in pseudo-halftones created by dots. This mode is used to output an original that contains intermediate colors, such as a photo, on an output device that can only express binary per pixel, such as a laser printer .
❖❖
Gray Scale scanning
❖❖
This mode scans the original with 16 or 256 gradations. This mode is used to output an original that contains intermediate colors on an output device that can express different gradations for a single pixel, such as a Dye Sublimation printer or a display.
Original Binary
Halftone Gray Scale
45
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6. Appendices

Binary Scanning/Threshold

The binary scanning function converts the original into black and white image data. If the original contains any intermediate colors, they are compared with the threshold value and determined to be either black or white accordingly. The thr eshold value can be set to an y of 255 gradations; any intermediate colors that are brighter than the threshold value are scanned as “white,” and those that are darker than the threshold value are scanned as “black.” This mode should be used to scan originals that have no intermediate colors and consist of only two colors, such as text or line drawings. The threshold value should be set according to the intensity of the original. For example, setting a high threshold value when scanning faint text will produce text that is much clearer . Conv ersely, setting a low threshold value when scanning an original that is on a colored background (such as text on colored paper) will eliminate the background color from the scan. There are two modes for the threshold value setting:
❖❖
Standard mode
❖❖
Any one of 255 values can be set.
❖❖
Dynamic threshold mode
❖❖
This function is valid only when the optional Image Processing Unit Type A is installed. With this mode, the optimal threshold value (given the brightness of the original) is set automatically.
Original Low threshold value
High threshold value Dynamic threshold mode
46
Page 58
Functions

Halftone Scanning

Halftone scanning converts the original into an image consisting of pseudo-halftones produced by dot shading (in which shading is achieved through combinations of black and white dots, as in newspaper photographs). This function is used to output an original that has intermediate tones, such as a photo, on an output device that can only produce monochrome output, such as a laser printer. Because halftone scanning expresses pseudo-halftones, it does not require as much memory, making it effective for filing a large volume of images. There are eleven types of halftones (ten dot shading patterns and one error diffusion pattern) for selection. It is also possible to scan and download your own dot shading patterns. The names in parentheses indicate the names under the ISIS driver .
Original
8 x 4 45° 6 x 6 90° 8 x 8 90° 16 x 8 45°
Error diffuson8 x 8 Bayer4 x 4 Spiral16 x 16 90°
47
Page 59
6. Appendices
180 LPI70 LPI 95 LPI

Gray Scale Scanning

Glay Scale scanning converts an original into image data consisting of 4-bit or 8-bit gradations. Four bits can express 16 gradations, and eight bits can express 256 gradations. This function is used to output an original that contains intermediate tones on an output device that can express intermediate tones for a single pixel, such as a display or a Dye Sublimation printer. Although a higher number of bits produces higher image quality, it is impor tant to remember that the processing time will be longer. For e xample, when an area is scanned using the 8-bit multi­scan mode, it requires eight times as much memory as when scanning the same area through binary scanning or halftone scanning.
Original
4-bit image 8-bit image
48
Page 60
Functions

Area Extraction

This function extracts and scans a specified rectangular area within a scanning area. For example, to scan just the photograph portion of the original shown below, specify the area where the photograph is located. The rectangular area is specified by specifying the coordinates of the upper left corner of the rectangle, and the vertical and horizontal lengths.
Specified area
Original
Scanned image
k
Scanned result
49
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6. Appendices

Section Area (Multi-area Settings)

This function permits the specification of up to four rectangular areas of any size within the scanning area, each of which can be set as the scanning area. When overlapping areas are set, the area that was set last takes priority . For example, when a single original contains both text and photos, specify rectangular areas for each, and then set binary scanning mode for the text areas and halftone scanning mode for the photographs. This function allows each area to be scanned in its respective scanning mode in one scan.
Limitation
During double-sided scanning, this function is valid only for the front side of the original.
Note
Note that scanning might not be performed in the specified manner if any of the four
rectangular areas overlap. In this case, either decrease the number of rectangles, or else reduce them in size.
This function is valid only when the optional Image Processing Unit T ype A is installed.
1. Binary scanning is set for the whole page
2. Halftone scanning is set for this area
3. Halftone scanning is set for this area
4. Halftone scanning is set for this area
Original
Result of settings described above
50
k
When this function is not used
When entire original was scanned through binary scanning
When entire original was scanned through halftone scanning
Page 62
Functions

Auto Photo/Letter

This function automatically determines whether the image being scanned is text (binary image) or photo (intermediate tone image), and scans the text areas in binary scanning mode and the photos in halftone scanning mode. This function is used in order to automatically scan text in binary scanning mode and photos in halftone scanning mode. This function allows you to scan an original that contains both text and photos just once while automatically scanning each type of area in the appropriate scanning mode without having to make special settings for each.
Note
This function is valid only when the optional Image Processing Unit Type A is installed.
Original
Scanned in binary scanning mode
Scanned in halftone scanning mode
51
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6. Appendices

Resolution

This function permits setting separate resolutions for the main-scanning and the sub-scanning, over a range of 100dpi to 800dpi (in 1dpi increments) for each. A high resolution setting requires more free space in memory and requires more processing time. Basically, when outputting a scanned image that is the same size as the original image, set the same resolution as that of the output device. Image quality will suffer if the resolution is less than that of the output device, and it is meaningless to set a resolution that is higher than the resolution that the output device is capable of. However, if the output image is to be enlarged or reduced compared to the original, change the resolution by the same ratio.
Limitation
When this function is used during duplex scanning, the maximum image data size for the
reverse side is 360 million bytes.
Note
When using this function, the image on the reverse side might be scanned through the
document, depending on the condition of the original.
Original
52
Low resolution High resolution
Page 64
Functions

Brightness

The brightness can be adjusted to 255 levels. If a high value is set for the brightness, the image will become brighter overall. If a low value is set, the image will become darker overall. When scanning a dark original, set a high value for the brightness; when scanning a bright original, set a low value for the brightness. For example, if a dark original is scanned normally , any gradations in the darker portions will be lost and will appear to be solid black in the scanned image. By increasing the brightness value in this case, the gradations in the darker portion will also appear in the scanned image. Conversely, if the bright portions of an original become solid white in the scanned image, lowering the brightness value will bring out the gradations in the bright portion in the scanned image.
Low brightness High brightness

Contrast

The contrast can be adjusted to 255 levels. If a high contrast value is set, the resulting image will have high contrast and will be sharply defined. If a low contrast value is set, the resulting low­contrast image will have a softer feel. To produce a sharp image, increase the contrast value, to produce a soft image, decrease the contrast value. For example, when scanning a photo of metal, glass, etc., set a high contrast value in order to achieve a sharp feel.
Low contrast High contrast
53
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6. Appendices

Gamma Correction

The following types of gamma correction are possible. However, different models of output devices have different characteristics. Select a suitable gamma curve for the original that is to be scanned and the output device.
❖❖
Normal
❖❖
Emphasizes the contrast slightly, resulting in a some what sharp scanned image.
❖❖
Sharp
❖❖
Emphasizes the contrast, resulting in a sharp scanned image.
❖❖
Soft
❖❖
Decreases the contrast, resulting in a soft scanned image.
❖❖
Linear
❖❖
Outputs the image as scanned.
❖❖
User-defined
❖❖
Downloads a user-defined gamma curve for gamma correction.
Normal Sharp
Soft Linear
54
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Functions

Binary Filters

The following two filters can be used for binary scanning.
❖❖
Noise removal
❖❖
This filter used to eliminate the unnecessary small dots that appear when scanning an original that is the result of several generations of photocopying.
When filter is not used
❖❖
Smoothing
❖❖
This filter is used to smooth out small bumps within an image.
When filter is not used
Note
This function is valid only when the optional Image Processing Unit Type A is installed.
When filter is used
When filter is used

Parameter Download

This function allows a user to download user-created gamma curves and halftone patterns to the scanner. The details of how to download the data depends on the software being used.
55
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6. Appendices

Document Size Detection

This function automatically detects the width of the original, and sends the information to the personal computer.
Document Size Detection on the Contact Glass
5mm (0.2")
Document Size Detection in the Auto Document Feeder (ADF)
5mm (0.2")
Note
If there is any coloring on the leading edge (5mm, 0.2”) of the original, the size of the
original might not be detected properly.
If the sheets of the original are not set in position properly, the size of the original
might not be detected properly. Line up the edges of the sheets of the original, and position the guides on both sides so that they are touching the edges of the original and will ensure that the original feeds straight into the ADF.
This function is valid only when the optional Image Processing Unit T ype A is installed.
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Functions

Erase Background

This function permits selection of the white side dynamic range for scanning.
When Erase Background is disabled
The dynamic range is set so that a white original (D value: 0.07) reaches maximum output.
When Erase Background is enabled
During scanning, the portion of the original that is closest to white is deemed to be white, and the dynamic range is set so that the portion in question reaches maximum output.
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6. Appendices

Index

A
ADF Cover ----------------------- 4, 29, 34 Area Extraction --------------------------- 49 Auto Document Feeder (ADF) --- 1, 3, 5, 17, 19, 21, 22, 23, 28, 29, 36, 37, 39 Auto Photo/Letter ------------------ 4 0, 51 Auxiliary Table ----------------------- 3, 21
B
Binary Filters ------------------------------ 5 5 Binary Scanning ---------------------- 45, 46 Brightness ---------------------------------- 53
C
{Clear Modes} Button ---------------- 3, 26 Contact Glass ------------ 4, 17, 19, 20, 34 Contrast ------------------------------------- 53
D
Daisy Chain --------------------------- 1 0, 4 3 DIP Switch --------------------- 4, 10, 27, 43 Document in Place -------------------------- 5 Document Size Detection ----------- 40, 56 Document Table ----------------------- 3, 29 Drum ---------------------------------------- 34 Duplex Model -------------------------- 1, 42 Dynamic Threshold------------------------ 40
E
F
Feed roller ----------------------------- 29, 35
G
Gamma Correction ------------------------ 5 4 Gray Scale Scanning ---------------- 45, 48
H
Halftone Scanning ------------------- 45, 47 Home Position ------------------------ 20, 37
I
Image Processing ------------------------- 40 Indicators --------------------------- 5, 27, 28 Initializing the Scanner ------------------ 16 ink ribbon ----------------------------------- 30 Interface for Reverse Side Scanning-------4 ISIS-------------------------------------- 2, 25
K
Knob ------------------------------ 29, 34, 36
M
Machine Busy ------------------------------- 5 Manual Scanning ------------------- 1, 5, 26
O
Output T able ------------------------ 3, 29, 30
Endorser ------- 1, 28, 30, 31, 32, 41, 42 Endorser Cover ------------------------- 3, 30 Erase Background ------------------------- 57 Error ------------------------------------------- 5
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Index
P
Parameter Download --------------------- 55 Platen --------------------------------------- 3 4 Power Cable -------------------------------- 13 Power Connector ----------------------- 4, 14 Power On -------------------------------------5 Power Switch ---------------------- 3, 13, 15 Preview ------------------------------------- 44
R
Red Lamp Unit ---------------------------- 4 0 Reset Switch ---------------------------- 4, 16 Resolution ---------------------------------- 5 2 Rotary Switch --------------------------- 4, 11
S
Scale ----------------------------------------- 20 SCAM --------------------------------- 10, 43 Scanner Indicators ---------------------------3 Scanning Composition -------------------- 45 SCSI----------------------------------------- 10 SCSI Board--------------------------------- 10 SCSI Cables ---------------- 10, 11, 27, 39 SCSI Connector------------------------------4 SCSI ID---------------------------10, 11, 27 Section Area (Multi-area Settings) ------- 50 Simplex Model ----------------------------- 42 Slit Glass------------------------------------ 34 {Start} Button --------------------------- 3, 26 Stopper ------------------------------ 3, 21, 22
T
Ter minator ------------------------ 10, 11, 43 Threshold ----------------------------------- 46 TWAIN --------------------------------- 2, 25
W
White Roller ------------------------------- 36 White Sheet ------------------------ 4, 34, 36
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6. Appendices
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