I have an Epson 4900 printer that has seen light duty over it's three year lifetime that has developed a defect in the middle third of the MK channel only. It has performed very nicely over it's lifetime however the most recent printer head problem has not resolved despite several manual "poweful" paired head cleaning cycles effected through the printer's LCD screen. I have taken it to a local certified Epson repair center and after one week I was told that I needed a new printer head which would cost about $1,600. Unfortunately, they did nothing more than I had already tried to clear the blocked channel. Since the machine has performed very well up until now and also since I had just purchased a full set of eleven carts for the printer I decided I would try to clear the head. In researching how to do this I came across the InkJet Mall website and ordered eleven carts and a gallon of PiezoFlush to try to clear the blocked channel. I also downloaded and installed the recommended Adjustment Program(AP_4900), however, it is unclear which option to use in the Adjustment Program. It appears as though there are three options that might work:
Option One, Section 2.3, "Cleaning"
It states: "Select the cleaning strength between "CL1", "CL2" and "CL3". (CL3 is the strongest cleaning)
- If you do not wish to clean all the nozzle lines, select the pairs you wish to clean. (Multiple selection possible)
- Click [Run] to start the cleaning.
CL 2 on all lines is recommended after setting a new print head. (To fill the head with ink)"
I believe this may be similar to the "Powerful" manual cleaning that I have already tried thru the printer LCD. It apears as though it intended to be used with ink to try to clean the head but I could substitute PiezoFlush but I think the volume may may not be sufficient to clear the blocked channel so I don't believe this is my best option.
Option Two, Section 3.3, "Ink Eject and Initial Charge"
It states: "Select "Ink Eject" to minimize the ink remaining on the ink tubes when exchanging the tubes, the ink selector or the ink holders. Select also the side you need to eject the ink from then remove the corresponding ink cartridges and click [run]. (Both sides can be selected together)
You may run the procedure twice to reduce further the amount of ink remaining in the tubes.
- Select "Ink Charge" to perform an ink charge on the selected side. (No need to charge a side already charged) It is necessary to insert the corresponding ink cartridges. (Both sides can be selected together)"
It looks to me that the "Ink Eject" function is to empty tubes prior to repair work. I am concerned that the printer may not run this program if it recognizes the PiezoFlush cartridges as being filled with ink since it indicates that the cartridges should be removed. The "Ink Charge" command may work though. Do you recommend this, or the next option...
Option Three, Section 3.6, "Tubes Cleaning"
It states: "You may use Service Cleaning Cartridges to clean the tubes and try to recover from ink hardening or difficult missing nozzle. (Please note that the efficiency cannot be guaranteed)
Cleaning the tubes allows also to reduce the risk of problems that may arise when storing the printer when not using it for a long time (several months).
Do not run the sequence if you do not have cleaning cartridges!
- Procedure -
1. If you do not wish to clean all the tubes, select the color pairs you wish to clean. (Multiple selection possible)
2. Remove the corresponding Ink Cartridges.
3. Click [Run], then insert and remove the cleaning cartridges according to the instructions displayed by the program.
(Note: the tubes will be cleaned twice in order to maintain the initial ink charge sucess rate.)
- Reference -
Cleaning Liquid required to clean the tubes (twice):
- C/M: 23ml per slot,
- Bk/Lk: 36ml per slot,
- Or/Gr: 25ml per slot,
- LLk/Y: 24ml per slot,
- Lm/Lc: 24ml per slot.
This sounds ideal (lots of volume and it's designed to clean a stubborn blockage) but I am concerned that the printer may recognize the PiezoFlush-filled cartridges as ink-filled cartridges instead of the Epson Service Cleaning Cartridges and not allow the program to run.
I assume the portion of the program called, "Ink Charge" is similar to, "Initial Charge" mentioned in Option Two(above).
I look forward to your input,