Epson 1640SU - Manual (Page 3)

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Initialization The scanner can be initialized (returned to
methods a fixed set of conditions) in the following
ways:
SCSI Interface
Interface type ANSI X3T9.2/375R Revision 10L
(SCSI-2)
Functions BUS FREE phase
ARBITRATION phase
SELECTION/RESELECTION phase
COMMAND phase
(the Logical Unit Number is fixed to 0
and the command link function
is not supported)
DATA phase
Data in phase
Data out phase
STATUS phase
MESSAGE phase
MESSAGE IN phase
MESSAGE OUT phase
ATTENTION condition
RESET condition
Logic level TTL compatible
Electrical standard ANSI X3T9.2/375R Revision 10L
(SCSI-2)
ID Setting Selectable from 0 to 7 (factory setting: 2)
Terminator Internal terminator (always ON)
Connector type High density 50-pin connector
Connector pin arrangement
Initialization The scanner can be initialized (returned to
methods a fixed set of conditions) in the following
ways:
Transparency Unit Specifications
The transparency unit (B813172) allows you to scan positive
and negative transparent materials —35 mm slides, filmstrips,
and film up to 4
× 5 inches in size.
The transparency unit comes bundled with the EPSON
Perfection 1640SU PHOTO.
Basic Specifications
Dimensions Width: 8.7 inches (222 mm)
Depth: 12.0 inches (305 mm)
Height: 1.4 inches (36 mm)
Weight 1.5 lb (0.7 kg)
Maximum
readable area
3.6 × 4.6 inches ([93 × 118 mm]
size of 4 × 5-inch film holder opening)
Electrical Supply voltage: DC 21.6 to 26.4 V
Rated current: 0.5 A
Reliability 10,000 hours for light source
Temperature Operation: 41 to 95 °F (5 to 35 °C)
Storage: –13 to 140 °F (–25 to 60 °C)
Humidity Operation: 10% to 80%
(without Storage: 10% to 85%
condensation)
Operating Ordinary office or home conditions; avoid
conditions extreme dust, direct sunlight, and
strong light sources.
Document Transparencies up to 4 × 5-inch film
specifications (negative film, positive film)
35 mm strip film (negative, positive)
35 mm slides (negative, positive)
Brownie size strip film
Auto Document Feeder Specifications
The auto document feeder (B813222) allows you to
automatically load multi-page documents into your scanner.
This document feeder is particularly useful for OCR (optical
character recognition) scanning. You can load up to 30 legal
size (8 1/2
× 14-inches) pages in the auto document feeder.
The auto document feeder comes bundled with the
EPSON Perfection 1640SU OFFICE.
Hardware
initialization * The scanner is turned on.
* The USB cable is unplugged from the USB port
on the scanner.
Software
initialization * Software sends the ESC @ (initialize the scanner)
command.
* The scanner receives a Bus Reset from the USB
interface.
Hardware
initialization * The scanner is turned on.
* The scanner receives a SCSI Reset signal from the
SCSI interface.
Software
initialization * Software sends the ESC @ (initialize the scanner)
command.
* The scanner receives a SCSI Bus Device Message.