Epson GT-30000 Service Manual

A3 Size Color Flat Bed Scanner GT-30000 Revision A
DISASSEMBLY & ASSEMBLY Disassembly Procedures 41
4.2 Disassembly Procedures
This section describes the separate disassembly and removal procedures for
each main assembly of the GT-30000. The flow chart in "Figure 4-1.
Disassembly Procedure for GT-30000" indicates the various steps involved in
disassembly. When disassembling each assembly, you should refer to the
page numbers indicated in this figure.
Figure 4-1. Disassembly Procedure for GT-30000
C A U T I O N
!
The procedure steps which are enclosed in a
yellow box in "Figure 4-1. Disassembly Procedure
for GT-30000" are steps which require the use of a
special tool as part of the procedure. Make sure
that you read and fully understand the details
given in the relevant section of the procedure
before carrying out the disassembly operation.
!
The procedure steps which are enclosed in a red
box in "Figure 4-1. Disassembly Procedure for GT-
30000" are steps where adjustment is required
when re-assembling the relevant assembly after
disassembly. Make sure that you read and fully
understand the details given in the relevant
section of the procedure before making the
required adjustment.
C H E C K
P O I N T
Refer to A3 Auto Document Feeders service manual
for detail
s on the disassembly procedures for the
ADF.
Scanner
Mechanism
Disassembly
(See
Chapter 4.2.2)
Scanner Body
Disassembly
(See
Chapter 4.2.1)
Main Circuit Board Removal (See Chapter 4.2.1.2)
ADF Removal (See Chapter 4.2.1.1)
Mechanism Cover Removal (See Chapter 4.2.1.3)
Power Supply assembly Removal (See Chapter 4.2.2.1)
Cooling Fan Removal (See Chapter 4.2.2.2)
Power Supply Circuit Board Removal (See Chapter 4.2.2.3)
Panel Circuit Board Removal (See Chapter 4.2.2.6)
Lamp and Inverter Circuit Board Removal (See Chapter 4.2.2.7)
Lamp Cover Removal (See Chapter 4.2.2.7.1)
Lamp Removal (See Chapter 4.2.2.7.2)
Inverter Circuit Board Removal (See Chapter 4.2.2.7.3)
Relay Circuit Board Removal (See Chapter 4.2.2.11)
Document Size Sensor Removal (See Chapter 4.2.2.10)
CR Motor Assembly Removal (See Chapter 4.2.2.9)
Scanner Mechanism Removal (See Chapter 4.2.1.4)
Mechanism internal cover removal Removal (See Chapter 4.2.2.8)
Glass Frame Assembly Removal (See Chapter 4.2.2.5)

Epson GT-30000 Specifications

Power

voltage	AC 100V-120V, 220V-240V
frequency	50-60Hz
power consumption operating without ADF	65W
power consumption operating with ADF	90W
power consumption standby without optional unit	12W

Operating Environment

temperature operating	41ºF to 95ºF (5ºC to 35ºC)
humidity operating	10% to 80% (no condensation)
humidity storage	10% to 85% (no condensation)

Scanning Specifications

optical resolution	600 x 1200 dpi with Micro Step Drive™ technology
maximum resolution	9600 x 9600 dpi with interpolation
effective pixels	7020 x 10200 pixels (600 dpi)
color depth internal	36 bits per pixel
color depth external	24 bits per pixel (selectable)
grayscale depth internal/external	12 bits per pixel
grayscale depth external	8 bits per pixel
scanning speed at 1600 dpi, draft mode, color	0.79 msec/line (approx.)
scanning speed at 1600 dpi, draft mode, grayscale	0.39 msec/line (approx.)
scanning speed at 1600 dpi, draft mode, art	0.39 msec/line (approx.)

Weight and Dimensions

maximum read area	11.7" x 17.0" (297mm x 432mm)
width	25.9" (658mm)
depth	19.2" (488mm)
height	10.0" (254mm)
weight	66 lb (37.5 kg approx.)