Epson firmware version is represented as:
Model and the Release Date. |
| Example: I00642 | | I0 | 06 | 4 | 2 | | SP4000 | Day | Year | Month | | | 06 | 2004 | Feb |
| Example: I00641 | | I0 | 06 | 4 | 1 | | SP4000 | Day | Year | Month | | | 06 | 2004 | Jan |
| Example: I0183B | | I0 | 18 | 3 | B | | SP4000 | Day | Year | Month | | | 18 | 2003 | Nov |
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| 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 |
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