Service and Maintenance Manual 3-101 960714-02B © 2007 I2407
SECTION 3 – COMPONENT REPAIR
PRINTHEAD CRADLE ASSEMBLY
PRINTHEAD POSITION SENSOR
The printhead position sensor communicates to the
PLC the location of the printhead. If the sensor
does not indicate the printhead is in the “down”
position, the machine will not print.
Parts of this procedure require that power is
applied to the machine.
1. Remove the outside frame cover.
2. Open the cradle cover, and check sensor
function. Take any small metal object (such as
a hex wrench) and pass in front of the sensor
(within 1/8”). While moving the object back and
forth, watch the PLC indicator lights. The light
for Input “X4” should illuminate when the
sensor is activated. If it does not, the sensor is
faulty and needs replacement.
The printhead position sensor is adjustment free.
Always remove electrical power from the
SX
prior to performing any maintenance
USE EXTREME CAUTION WHILE SERVICING
A MACHINE WHILE POWER IS APPLIED.
UNEXPECTED MACHINE ST
ARTUP CAN
CAUSE SERIOUS INJURY.
DO NOT ATTEMPT TO SERVICE THE
MACHINE DURING NORMAL OPERATION.
KEEP HANDS AND ARMS CLEAR OF
MOVING PARTS.
COMPONENTS WITH POWER APPLIED TO
TROUBLESHOOTING TECH
NIQUES TO
AVOID ELECTRICAL SHOCK.
Figure 3-253. Frame Cover Screws
To Next Page
Loading...
