USB Cable
Make sure the USB cable is plugged into the printer and the PC, to check if the USB
cable is faulty try another USB (you can try the gas analyser USB cable as they are
the same type).
Wet Paper
Sometimes when the printer is left in a cold environment the paper can become
damp and cause the paper to jam in the printer, please only place enough paper in
the printer tray for the desired tests for that day, this will help reduce down time from
paper jams.
Damaged Tray
The paper tray can be damaged when opened and closed harshly, when the paper
tray has failed this is normally due to the mechanism on the right hand side
becoming damaged.
Inspect this for damage, if it has damage then the tray must be replaced or a new
printer purchased. The top feeder can be used until you have a replacement.
