Brother International HL-720 Service Manual - Page 32

Optional RAM, <HL-720&gt, Fig. 2.12, <HL-730/730Plus&gt, M optional RAM = 1.5 Mbytes

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1.3.5 Optional RAM 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. Fig. 2.12 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 HL730Plus. 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. 2.13 II-15

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II-15
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.
Fig. 2.12
<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. 2.13