OKIDATA 610e, Руководство по обслуживанию

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Operation Description 2 - 7 OL600e/610e/610e-PS/610e-S
Service Manual, P/N 59271602
DRAM
OL600e/610e
The DRAM is a resident memory—1MB in the OL600e, 2MB in the OL610e—used as a buffer; it
stores edited data, image data, DLL data, and macro data.
OL610e/PS
The DRAM is resident memory (2MB on the board plus 0.5MB on the PS board) used as a
buffer; it stores edited data, image data, DLL data, and macro data.
In PostScript mode, it is used as VM and font cache also.
EEPROM
1,024-bit Electrically Erasable PROM (EEPROM), is loaded with the following data:
• Menu data
• Various counter data (Page counter, Drum counter)
• Adjusting parameters (LED head drive time, print start position, paper feed length)
Parallel Interface
Parallel data is received from the host system via parallel interface which conforms to the
Centronics specification. IEEE 1284 specification bidirectional parallel is supported.