Epson EPL-N2700 Service Manual page 184

EPL-N2700 Optional Units
3. LCC Lift-Up Motor is energized and the Lift is raised. This lifts the
paper stack to block the Lift-Up Sensor.
4. Return to Step 1 to repeat the sequence.
Both Lift 1 and 2 perform these sequences of operations to keep a given
pressure between the paper and Paper Take-up Roller.


Lift 1 and 2 Ascent Conditions

The LCC is slid into position.

The Lift-Up Sensor is unblocked while a paper take-up
sequence is being carried out with paper present on the Lift.


Lift 1 and 2 Stop Conditions

The Lift-Up Sensor is blocked.

The Lift-Up Sensor is blocked while the paper stack top level
position is being corrected.


LCC Lift-Up Motor Control
LCC Lift-Up Motor is a DC motor. It is energized or deenergized and
its direction of rotation is determined by the Motor Control signals
applied from the printer's control board to pins 1 and 2 of CN5 of
LCC Main Board PWB-A. Depending on the motor's rotational
direction, the lifter to be raised is determined. (See the table below.)
LCC Lift-Up Motor Lift 1
Energized
Ascent
(Forward Rotation)
Energized
Stop
(Backward Rotation)
Deenergized Stop
Operating principles
Table 6-3.
CN5
Lift 2
1
Stop H
Ascent L
Stop L


Descent Motion
When the LCC is slid out of the printer, Lift 1 and 2 are lowered. To
absorb shocks that would otherwise be applied during the descent
motion, springs are loaded in the rear side of the LCC.
Springs
2
L
H
L
LCC Unit Unit
Lift 1
Figure 6-41. Descent Motion
Revision A
Lift 2
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