Pro 7900 and 9900 Field Repair Guide
This chart explains the meaning of
the firmware version characters.
Stylus Pro 9900 Current Firmware Ver. HW003A9.upg
Release date: 09/03/10
1. Improved support for the "Job Cancel Command".
2. SpectroProofer functionality was improved.
Firmware History (Printer) (9900)
Firmware History (Printer) (9900)
Printer Component,
Software Item,
Epson firmware version is
represented as:
Model and the Release Date.
SN00458
Example
SN0
04
5
8
SP7800 DAY
YEAR MONTH
4
2005
Aug
ExampleSN00157
SN0
01
5
7
SP7800 DAY
YEAR MONTH
01
2005
Jul
Example:
DAY
YEAR MONTH
LCD Display,
Printer Button
The values are
represented in
Hexadecimal
HEX
= Decimal
1
=
1
2
=
2
3
=
3
4
=
4
5
=
5
6
=
6
7
=
7
8
=
8
9
=
9
A
=
10
B
=
11
C
=
12
D
=
13
E
=
14
F
=
15
10/6/10
Page 415.