The printer has 32 MB (HL-3040CN) or 64 MB (HL-3070CW) of standard memory and one slot for optional memory expansion. You can expand the memory up to 544 MB (HL-3040CN) or 576 MB (HL-3070CW) by installing a Dual In-line Memory Module (SO-DIMM).
In general, the machine uses industry-standard SO-DIMM with the following specifications:
| • | Type: 144 pin and 64 bit output |
| • | CAS latency: 2 |
| • | Clock frequency: 100 MHz or more |
| • | Capacity: 64, 128, 256 or 512 MB |
| • | Height: 31.75 mm (1.25 in.) |
| • | SDRAM can be used. |
Note
| • | There might be some SO-DIMMs that will not work with the printer. |
| • | For more information, call the dealer you bought the printer from or Brother Customer Service. |
Installing extra memory
Note
| | Always turn off the printer power switch before installing or removing the SO-DIMM. |
| 1 | Turn off the printer power switch, and then unplug the printer. Disconnect the interface cable from the printer. |
| 2 | Remove the plastic (1) and then the metal (2) SO-DIMM covers. |
| 3 | Unpack the SO-DIMM and hold it by its edges.   CAUTION | | To prevent damage to the printer from static electricity, DO NOT touch the memory chips or the board surface. |
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| 4 | Hold the SO-DIMM by the edges and align the notches in the SO-DIMM with the protrusions in the slot. Insert the SO-DIMM diagonally (1), then tilt it toward the interface board until it clicks into place (2). |
| 5 | Put the metal (2) and then the plastic (1) SO-DIMM covers back on. |
| 6 | Reconnect the interface cable to your printer. Plug the printer back in, and then turn on the power switch. Note | | To make sure that you have installed the SO-DIMM properly, you can print the printer settings page that shows the current memory size. (See Machine Info..) |
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