Paxar 676, User Manual

Page: 52 / 123

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Electrical Trouble Shooting
Problem Probable Cause Corrective Action
Print registration is off in
the web direction.
1) Machine incorrectly threaded. 1) Check and rethread the media as needed. Refer
to "Loading Stock".
2) Web guides incorrectly adjusted. 2) Check and adjust as needed. Refer to "Web
Guide Adjustment".
3) Unwind incorrectly adjusted. 3) Check and adjust as needed. Refer to "Web
Guide Adjustment".
4) Incorrect DIP switch settings on
the Thermal Control Board.
4) Check and reset DIP switches as needed. Refer
to "TCB Dip Switch S2 Settings".
Print contrast is too light or
dark.
1) Incorrect strobe setting selected
in the format.
1) Using Formatter check and adjust the strobe
setting according to the media and ink being
used.
2) Incorrect strobe setting in the
machine setup.
2) Enter the setup menu and readjust the strobe as
needed.
3) Misadjusted print head position. 3) Set print head position. Refer to "Print Head
Tangent Point".
4) Misadjusted print head pressure. 4) Set print head pressure. Refer to "Print Head
Pressure Setting".
Voids in print image in the
feed direction.
1) Ink misaligned with format. 1) Adjust ink position on the arbors to achieve full
ink coverage over all fields on the format.
2) Print head dirty. 2) Power off the machine clean the print head and
platen. Refer to "Print Head Cleaning".
3) Faulty print head. 3) After cleaning head and running the test pattern
to confirm that a void still exists, replace the
print head.
4) Misadjusted print head position. 4) Set print head position. Refer to "Print Head
Tangent Point".
5) Misadjusted print head pressure. 5) Set print head pressure. Refer to "Print Head
Pressure Setting".
6) Worn platen roller. 6) Replace platen roller.
Machine continually stops
with an erroneous
interlock condition.
1) Sensor uncalibrated. 1) Recalibrate the sensor from the front panel
using the “Calibrate Sensors” mode. Refer to
"Optical Sensor Electrical Calibration".
2) Sensor position misadjusted. 2) Determine which sensor and relocate
accordingly.
3) Ink sensor type (light / dark)
incorrect in the format for the
ink type being used.
3) Either change the ink or the ink type in the
format.