LSI
Location 04B: MSM79VO35
Detects the output of the two-phase
sensor on the DC space motor to
control the motor drive phase.
Transmits and receives serial data to
and from the printhead based on the dot
timing (which is derived from the space
motor speed).
Controls the external interface. The
LSI is connected to the MPU.
Electrically Erasable
Programmable Read Only Memory
(EEPROM)
(Location 03C: 93CS46)
The EEPROM is a CMOS serial
I/O type memory (EEPROM). It
is capable of electrically erasing
and writing 1,024 bits.
The EEPROM contains the menu
data and the head drive time
correction data.
2-1-01e.tif
2-1-01d.tif
Microline 520/521 Service Handbook 2 - 5 Principles of Operation
P/N 59257803
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