2
Hardware Installation 
Setting | Function |
SPP | Allows normal speed operation but |
(Standard Parallel Port) | in one direction only. |
ECP | Allows parallel port to operate in |
(Extended Capabilities Port) | bidirectional mode and at a speed |
| faster than the SPP’s data transfer |
| rate. |
|
|
EPP | Allows bidirectional parallel port op- |
(Enhanced Parallel Port) | eration at maximum speed. |
|
|
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