Printronix T6000 Administrator's Manual page 253

Displayed Message
GAP NOT DETECTED
GPIO OPTION CARD
PROGRAM COMPLETE
--------------------
RESUMING BOOT_UP
GPIO OPTION CARD
PROGRAM FAILED
--------------------
PRESS KEY TO CONTINUE
GRF CHK ERROR PRESS
PAUSE
Table 13. LCD Message Troubleshooting

The printer is set for Gap or Mark sensing, but a gap, notch, or
black mark is not being detected.

The lower media sensor is not positioned correctly.

Gap/Mark Threshold is set too high or Paper Out Threshold is
set too low.
1. Check that the setting of the Gap/Mark Sensor in the
SESNOR > Control section matches the installed media.
2. Check the position of the lower and upper media sensors.
(See Z-axis Mechanism Adjustment Screw on page 33.)
3. Clean the sensor assembly and paper path.
4. Run Auto Calibrate to improve the sensor's ability to detect the
media in use.
5. Run the Sensors > Diagnostic > Media Profile.
6. Run Manual Calibrate. (See Running Manual Calibrate
page 42.)
7. Manually change the Gap/ Mark Threshold and/or Paper
Out Threshold values.
Status message indicating that the GPIO option card FPGA was
successfully programmed.
No action is required.
Status message indicating that the GPIO option card FPGA failed
to program.
1. Pressing any key on the panel will cause the printer to continue
boot-up with the previous FPGA configuration.
In the TN emulation, the printer received a non-printable
character.
1. Press the PAUSE key and return to the ONLINE state.
Solution/Explanation
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