Firmware History (Printer) (7900) - Epson Stylus pro 7900 Repair Manual

Pro 7900 and 9900 Field Repair Guide
This chart explains the meaning of
the firmware version characters.
Stylus Pro 7900 Current Firmware Ver. HN003A9.upg
Release date: 09/03/10
1. Improved support for the "Job Cancel Command".
2. SpectroProofer functionality was improved.

Firmware History (Printer) (7900)

Firmware History (Printer) (7900)
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 411.