Epson TM-H6000IV with Validation Technical Reference Guide - Page 43

Adjusting the Paper Roll Near-End (NE) Sensor

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Chapter 2 Setup Adjusting the Paper Roll Near-End (NE) Sensor Below are two situations where a roll paper NE sensor adjustment is required. • To adjust the detection position to suit the diameter of the roll paper core used. • To adjust the detection position of the remaining amount of roll paper. • Since roll paper cores vary slightly in shape, depending on paper roll design and manufacturing tolerances, it is impossible to detect the remaining paper exactly. • Use roll paper with a core inner diameter of 12 mm {0.47"} and outer diameter of 18 mm {0.71"} so that the NE sensor can detect the remaining paper as accurately as possible. Follow the steps below to adjust the roll paper near-end sensor. 1 Open the roll paper cover. 2 Loosen the adjustment screw fastening the sensor, and align the upper edge of the positioning plate with the adjustment position. 2 Adjustment position Remaining amount of paper (outer diameter) Upper Approx. 27 mm {1.06"} Lower (Initial setting) Approx. 23 mm {0.91"} 3 Tighten the adjustment screw. 4 Make sure that the detection lever operates smoothly. Adjustment screw Positioning plate Detection lever 43

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Chapter 2
Setup
43
2
Adjusting the Paper Roll Near-End (NE) Sensor
Below are
t
wo s
itu
a
ti
o
n
s where a roll paper NE se
n
sor adj
u
s
t
me
nt
i
s req
ui
red.
•
To adj
u
s
t
t
he de
t
ec
ti
o
n
pos
iti
o
n
t
o s
uit
t
he d
i
ame
t
er of
t
he roll paper core
u
sed.
•
To adj
u
s
t
t
he de
t
ec
ti
o
n
pos
iti
o
n
of
t
he rema
ining
amo
unt
of roll paper.
Follow
t
he s
t
eps below
t
o adj
u
s
t
t
he roll paper
n
ear-e
n
d se
n
sor.
1
Open the roll paper cover.
2
Loosen the adjustment screw fastening the sensor, and align the upper
edge of the positioning plate with the adjustment position.
3
Tighten the adjustment screw.
4
Make sure that the detection lever operates smoothly.
•
Since roll paper cores vary slightly in shape, depending on paper roll design and
manufacturing tolerances, it is impossible to detect the remaining paper exactly.
•
Use roll paper with a core inner diameter of 12 mm {0.47"} and outer diameter of 18 mm
{0.71"} so that the NE sensor can detect the remaining paper as accurately as possible.
Adjustment position
Remaining amount of paper
(outer diameter)
Upper
Approx. 27 mm {1.06"}
Lower (Initial setting)
Approx. 23 mm {0.91"}
Adjustment screw
Positioning
plate
Detection lever