Optional Ram - Brother HL-720 - B/W Laser Printer Service Manual

1.3.5

Optional RAM

<HL-720>
Three 4M-bit DRAM (x 8 bits) and one 16M-bit DRAM (x 8 bits) are used as the
optional RAM. The total memory area is expanded up to 4 Mbytes.
<HL-730/730Plus>
There are two types of optional RAMs: the 1 Mbyte model and the 1.5 Mbytes
model for HL-730, and one type of optional RAM: the 1Mbyte model for HL-
730Plus. The memory capacity can be expanded up to 2 Mbytes for both HL-730
and HL-730Plus.
HL-730 (0.5 M model):
+ 1 M optional RAM = 1.5 Mbytes
+ 1.5 M optional RAM = 2 Mbytes
HL-730Plus (1 M model)
+ 1 M optional RAM = 2 Mbytes
Fig. 2.12
Fig. 2.13
II-15