14
ZG310 Thermal Printer User Instructions
4 Paper
Pressing the paper feed button when the printer is idle, or in spool mode, advances
paper at typically 50 mm per second. However, the feed button has additional
functions:
Double-clicking the button (i.e. pressing and releasing twice in quick succession just
like a PC mouse):
l
in idle mode, prints a demo/test message including the firmware version,
encoded calibration data, and the full character set;
l
in spool mode, or having been out of paper, prints any stored data and enters
idle mode.
Some of the functions of the paper feed button can be invoked or disabled under control
of the host.
4.1 Loading Paper
Paper rolls must be 57.5 ± 0.5 mm wide, 55 mm maximum diameter, and have the
thermally sensitive coating on the outside. The printer can accept rolls which are
coreless or wound on a core.
To load a new roll of paper:
1.
Slide the lid release button forwards until the lid springs open.
2.
Unwind a small amount of paper from the roll and insert the paper roll into the
printer.
3.
Close lid and the paper is loaded.
After loading, check that the paper is straight and advances properly, and tear off any
excess by pulling the paper sharply towards you across the serrated tear bar. In the
event of a jam or other paper loading problem, release the lid and straighten the paper
before closing again.
4.2 Paper Out and Head Up Sensors
A reflective optical Paper Out sensor within the mechanism detects an out-of-paper
condition, and/or senses black marks to register with pre-printed forms. A mechanical
Head Up sensor detects when the lid is open.
By default, the printer enters spool mode automatically if either sensor becomes active.
spool mode is automatically exited, and any stored data printed, when new paper is
loaded and the lid closed. This behavior may be modified. Please refer to the Service
Manual for details of how to configure these functions.
