Owner's Manual

50
Expanding memory
Depending on document size and resolution, you may need to add expansion memory to the scanner to
prevent it from running out of memory during scanning.
About the DIMM modules used with this scanner
• JEDEC compliant 168-pin DIMM
• Nonbuffered
• 100 MHz/CL2, 133 MHz/CL2, 133 MHz/CL3
• 64 MB, 128 MB, 256 MB
The scanner allows installation of a single DIMM module of one of the sizes indicated above.
Note: When using the ISIS scanner driver, if there is insufficient memory for the scanning job the scanning
area may automatically be reduced.
The tables below describe memory expansion requirements for variety of combinations of paper size and
resolution. Please consult your service representative for requirements with other combinations.
Single Side/256 shades of gray
)ipd(noituloseR
eziSrepaP001002003004005006
3A00
BM46 BM46 BM46 BM821
4A 0000
BM46 BM46
5A 00000
BM46
6A 000000
4B 000
BM46 BM46 BM46
5B 0000
BM46 BM46
6B 000000
"11 × "7100
BM46 BM46 BM46 BM821
lageL 000
BM46 BM46 BM46
retteL 0000
BM46 BM46
Duplex/256 shades of gray
)ipd(noituloseR
eziSrepaP001002003004005006
3A00
BM46 BM46 BM821 BM652
4A00
BM46 BM46 BM46 BM821
5A 0000
BM46 BM46
6A 00000
BM46
4B00
BM46 BM46 BM821 BM821
5B 000
BM46 BM46 BM46
6B 0000
BM46 BM46
"11 × "7100
BM46 BM46 BM821 BM652
lageL00
BM46 BM46 BM46 BM821
retteL00
BM46 BM46 BM46 BM821
• The same amount of expansion memory is required when using dynamic threshold as with 256-level grayscale
scanning. (Please refer to pages 17 and 44 of the ISIS/TWAIN Driver Operating Instructions.)
• Expansion memory is not required for single-sided scanning of black and white documents.
• When scanning double-sided black and white documents, 64MB of expansion memory is required in order to scan A3
or double-letter size documents at 600 dpi.