Determining Printhead Wear; Replacing The Printhead; Prepare The Printer - Printronix T5000 User Manual

Determining Printhead Wear

When a printhead is worn, the most common sign of wear are fixed vertical
streaks that are always the same size and in the same place on the printout.
To determine if the cause of these vertical streaks is a worn printhead, follow
these methods.
1. Clean the printhead thoroughly with the printhead cleaning pen. Test
2. Remove the printhead (see page 245) and examine it for contamination
3. Load an alternate roll of media. Test again for vertical streaks.
4. Load an alternate roll of ribbon. Test again for vertical streaks.
If after performing all these tests you still see fixed vertical streaks, you must
replace the printhead.

Replacing The Printhead

Prepare The Printer

1. Set the printer power switch to O (off).
2. Unplug the printer power cord from the printer or the AC power source.
3. Remove the ribbon and print media.
again for vertical streaks.
or damage such as scratches, dents, or other marks on the light brown
area containing the heating elements. Clean and install it, then test again
for vertical streaks.
Determining Printhead Wear
245