Citizen Systems CLP-621 - Manual (Page 24)

2
Printer Operation
24
6. Setting sensor positions.
When using a transparent sensor
Move the bottom sensor close to the center of the width of the media,
then align the upper sensor marker and the bottom sensor marker (white)
using the movable media guide.
When using media that is 4 inches wide, position the upper sensor and
the bottom sensor all the way to the right (large blue-head open lever
side).
Movable
media guide
Upper sensor
Bottom sensor
Transparent
sensor marker
Upper sensor marker
Front
Aligned with the marker
Platen
When using a reflective sensor
Adjust the position of the sensor so that the reflective sensor marker of
the bottom sensor is at the center of the black mark of the media as
shown below.
Front
Black mark
Media
Bottom sensor
Reflective sensor marker
Black mark
Platen
Sensor Selection Method
(Transparent
↔ Reflective)
(p.39)
Adjusting the Transparent
sensor (p.40)
Adjusting the Reflective
sensor (p.41)
Setting the Media