Printronix SL4M User Manual page 190

Chapter 6
Diagnostics for E0xx, Bad NVM, or ILL NVM Errors
Table 14. Printer Problems and Solutions (continued)
Symptom
Media and ribbon move, but
no image prints in Thermal
Transfer mode.
When narrow media is
installed, the media moves
but no image prints.
Printing is faded or of poor
quality.
Prints strange characters
instead of the correct label
format.
190
Solution/Explanation
1. Print the Checkerboard diagnostic test pattern and check
that the image appears on the used portion of ribbon. If the
image is on the ribbon, the ribbon may be installed with the
transfer side against the printhead, instead of against the
media.
2. The ribbon may be designed for another model printer.
3. The ribbon may not be compatible with the media.
Verify the Label Width value in the MEDIA SETUP menu
agrees with the width of the installed media. Too large a value
will start the image too far to the right and off the media.
1. Clean the printhead.
2. Close the pivoting deck by rotating the deck lock lever fully
clockwise.
3. Verify that the printhead balance adjustment dial is
properly set. See "Printhead Pressure Adjustment" on
page 41.
4. Verify that the Print Speed and Intensity values are
correct. Adjust Print Speed in the MEDIA SETUP menu or
via host software. Adjust Print Intensity in the MEDIA
SETUP menu or via host software.
5. Verify that the printhead alignment is optimized.
See "Printhead Alignment" on page 43.
1. If the printer serial interface is being used, check that the
printer serial baud rate setting matches the baud rate of
the host computer. Reset the printer via software, or turn
the printer off and then on.
2. Check if the printer serial host interface is set for 8 data
bits but the transmitting device is set for 7 data bits (or
vice-versa). Check the current setting by viewing it on the
LCD, and use the INTERFACES menu to adjust the
settings, if necessary.
3. If the printer parallel interface is being used, make sure the
parallel interface terminating resistors are correct for the
host computer drivers.