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and Microcode Tolerance Information - Request commands regarding information
for adjusting these values.) The MCT value represents the number of 64KB sectors
assigned to the respective function.
In Model 2xR/1xR reallocation: To change the memory allocation of any of the
character sets (user-defined impact characters, user-defined thermal characters,
thermal DBCS character storage, Impact DBCS character storage), ALL memory
partitions must be emptied or erased. To change the memory allocation of any of
the remaining functions, ALL remaining memory partitions must be
emptied/erased. If the memory is not erased, an MCT write error status will be
returned.
After the MCT values are written, the new values will not take effect until after a
reset. The new memory allocations will start with the user defined character sets
(sectors 3 and 4), and then the DBCS (sectors 7 and 8), and then increment upward
starting with sector 1. Memory will be allocated until all requests are satisfied, or
until all available memory is used.
There is a total of forty-eight 64 KB sectors, for a total of 3.0 MB of FLASH
memory to allocate.
Note: The flash EPROM is guaranteed for a minimum life of 100,000 write/erase
commands by the flash manufacturer.
Table 6 lists the printer defaults.
Table 6. Printer memory allocation defaults
Function Default memory allocation MCT location
User-defined impact
characters**
64 KB (0x0001) - 2xR
0KB-1xR
0xa0
User-defined thermal
characters
64 KB (0x0001) 0xa1
Logos 64 KB (0x0001) 0xa2
Predefined messages 64 KB (0x000a) 0xa3
User memory 128 KB (0x0002) 0xa4
Scan image storage 0 KB (0x0000) for Model 2xR
and 1xR
0xa5
Thermal DBCS character
storage
1152K (0x0012) 0xa6
Impact DBCS character
storage**
567 KB (0x0009) 0xa7
Electronic journal storage
Note: For electronic journal
storage in the printer, use the
drivers provided by IBM. See
www.ibm.com/solutions/
retail/store.
0KB (0x0000) 0xa8
User defined code page
mapping
64 KB 0xa9
**For single station printers, the impact DBCS character storage and the user-defined
impact characters storage cannot be addressed: they remain at 0 KB.
Chapter 2. Communication parameters 19
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