Reporting on an Epson 9900 with a very stubborn clog.
Here's what has been done so far, in chronological order:
- Color pair cleanings, power cleanings, etc all performed by my associate and I at different times.
- Paper towel soaked with Piezo under the print head. Cleaned the wiper blade, flushing box with Piezo.
- Nozzle checks still show clogs.
- A student uses the printer accidentally but makes successful prints and there is, amazingly, a clean nozzle check after this happens.
- The printer returns to being clogged shortly after this.
- Repeat 1 - 3.
- Installed Piezo carts in all positions. Ran the initial fill cycle but Piezo would not enter the lines.
- Update Firmware.
- Initial Fill Cycle again. No Piezo.
- Head cleaning to try to get Piezo into the lines.
- Ran a nozzle check. Missing channels entirely and clogs. Some channels without clogs. Still no Piezo.
- Tried to Stress Test Print Page and the printer initiated an automatic head cleaning for about 15min and then popped up with the following error message:
"AUTOMATIC HEAD CLEANING FAILED: RETRY?" I opted out of the retry but the printed the stress test anyway. It appears that all colors are fading and banding both but I'm slightly hopeful that the Piezo is actually entering the lines now because the stress test shows some colors fading to purplish or pinkish hues and the O channel is completely pink (Piezo??).
It seems that channels will randomly stop printing in the nozzle check, which initially worried me that there might be air in the lines. The clog has definitely wandered since this whole process began. It has been a long and trying ordeal and I'm hoping there is some light at the end of this tunnel.
To make matters worse, I'm unable to run any more Init Fill cycles or cleanings because the chip on the VLM Piezo Refillable Cart now reads as too low for cleaning. This is only happening to the VLM cart even though all carts have been installed and used in the same fashion for the same amount of time and cleanings. Is there anything we can do about this?
Any information is greatly appreciated. Thank you!