SP-401 User Manual
Telpar, Inc.
Page 4 of 25
2 Operator Information
2.1 Turn on and Self Test
The operating controls of the SP-401 have been kept to a minimum. A
convenient self test feature allows the operator to quickly determine that the
printer is operating correctly. The functions of operating controls are as follows:
Control
Function
Thumb Wheel
Used on non-graphic model SP-401 printers to
advance the paper.
Do not rotate thumbwheel in a downward motion,
this will damage the paper feed mechanism.
L.E.D.
Indicates power on and paper installed when
green, paper out when flashing red and green,
optional paper low when red.
Switch
Power off in down position, Power on in middle,
and paper advance in the top (spring loaded)
position.
Latch
To secure the main body of the printer to the
mounting box.
Figure 1 - SP-401 Front Panel
To activate the self test feature, shut the printer off, then in one quick motion,
move the power switch to the paper advance position and hold it there until the
self test text begins. Once the self test routine begins you may let go of the switch
and let the printer finish the self test. To stop the self test before the end of the
message, power down the printer.
For units with Debug Function Test Software (Firmware versions 9.0 and
above) The self test stops after 7 lines are printed and the printer is set to debug
mode. Data sent to the printer while it is in debug mode will be printed out (by the
printer) in the format as sent to the printer. ASCII printable characters (21 through
THUMBWHEEL IS
AVAILABLE ON NON-
GRAPHICS
VERSIONS ONLY
ARROW SHOWS
DIRECTION TO TURN
WHEEL - TURNING IT
BACKWARDS WILL
CAUSE DAMAGE
LED
SW ITCH
LATCH