123
c Paper Feed Section
chap.2
Circuit
Operation
Top and bottom limit of print position is detected by the top and bottom limit sensor and the standard position
sensor.
The center position is detected by the standard position sensor.
2
Standard sensor: photopassing, Limit sensor: photointerrupting
The printing position is between the standard position and bottom limit.
2
Standard position sensor: photopassing, Limit sensor: the edge of photointerrupting - photopassing is
detected
The printing position is at the bottom limit.
2
Standard position sensor: photointerrupting, Limit sensor: photointerrupting
The printing position is between the standard position and the top limit.
2
Standard position sensor: photointerrupting, Limit sensor: the edge of photointerrupting - photopassing
The printing position is at the top limit.
Operation with the Power ON
The printing position returns to the standard
position by operating with the power ON,
depending on the sensor state as follows.
2
When positioned between the standard position
and the bottom limit:
Rotate the printing position motor normally (CW)
to return the printing position to the standard.
2
When positioned between the standard position
and the top limit:
Rotate the printing position motor reversely
(CCW) to return the printing position to the stan-
dard.
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