Service manual

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ER-A Model SRV (Service) Mode – File Allocation Overview
FILE ALLOCATION Overview
SRV Mode File Allocation, also known as memory file allocation and 970 programming, is used to
distribute the memory in a Sharp ECR where the memory is allocable. This allows ‘Files’ to be different
sizes depending on need and for better use of the available memory.
The concept of file allocation is similar to partitioning a hard disk drive. Instead of disk space, you are
working with areas of memory. File allocation allows for dividing and dedicating memory space for the
files to store its data.
Available memory maybe expanded with the addition of an optional memory expansion chip or board.
File Allocation Availability by Model
File Allocation
(975 or 970 Job Codes)
Y/N
SRV Mode
Job Code
ER-A242
ER-A320
ER-A330
ER-A410
ER-A420
ER-A440
ER-A450T
ER-A520
ER-A530
N
N
N
Y
Y
Y
Y
Y
Y
n/a
n/a
n/a
975
975
970
970
970
970
Optional Memory Expansion by Model
Model Y/N
Optional Memory
Expansion
Comments
ER-A242
ER-A320
ER-A330
ER-A410
ER-A420
ER-A440
ER-A450T
ER-A520
ER-A530
N
N
N
N
N
Y
Y
Y
Y
n/a
n/a
n/a
n/a
n/a
ER-03RA (128K RAM Chip)
n/a
UPS02MB (2MB Board)
UPS02MB (2MB Board)
n/a
n/a
n/a
n/a
n/a
Please order Service Part No. VHI62LV4007-1
n/a
Sales Accessory
Sales Accessory
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