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32 User’s Manual—SNAP™ 500 2/1 Printer
3.4 Using Pre-Printed Stock
When using pre-printed stock, the printer must detect a sense mark on the tape
in order to print in the proper place.
• The SNAP 500 printer comes with a top reflective sensor standard. This
sensor, mounted in the top-right-hand post of the web guide, detects a
black sense mark on the top surface of a white tape. The sensor cannot
be moved from the center position.
• A hole sensor is an option. This sensor will detect a hole or slot either
centered on the stock or ¼” from the inboard edge of the stock.
• A contrast sensor is also an option. This sensor will detect a colored
sense mark on the top surface of a colored tape. When installed, it is
mounted on the top left-hand post that holds the web guide. It is movable
across the web, so that the sense mark does not have to be centered on
the tape.
3.4.1 Selecting the Sensor
The registration sensor type can be selected in one of two ways. First, the
sensor type can be selected as part of the format (see the PCMate Platinum
manual or the PCL manual for details).
The sensor type that is selected in the format can be overridden using the Virtual
Control Panel (see section 8.0).
The printer does not know if the optional hole or contrast
sensor is installed. If one of these sensors is selected but
not installed, the printer will not operate properly.
3.4.2 Aligning the Stock to the Sensor
In order to work properly, the stock must be aligned to the sensor before starting
to print. To do this, open the print-head rollers and use the Feed knob until the
sense mark is just to the left of the sensor. Then rotate the rewind ink arbors to
take up any slack and press the Start/Stop Button and close the appropriate
print-head rollers.
This alignment must be done only the first time you print
after power up, or after a “missed sense mark” error. Do
not align the tape after a normal stop or a stacker full.
3.5 Option Menu System
The Option Menu System allows you to
• Print test labels
• Set the voice volume.