I have an Epson Expression Home XP-215 and upgraded the firmware a few days ago to version OF25DB. Do you know, if this problem also occurs on this printer? If yes, could you please add support for firmware downgrade to the WIC utility? Thank you!
And a second question: Do you think that third party cartridges with future chips will work with the new firmware?
1. Yes. Sure. This kind of problem is common to XP-215 also.
2. They will work until need reset.
So need make downgrade.
One time.
Then don't make firmware update!
3. We'll add XP215 model soon.

I've getting a "filter error" on the printer...i've been getting the same think on my Epson CX5800F since a recent apple update
Think I just found the answer...seem lots of folks are having the same issue...
1. Go to the Apple Menu
2. Select System Preferences
3. Open Sharing
4. Enter any name on the computer name field; eg My iMac. Close the page once done
5. Restart the computer. You should be able to print now.
Just tested and both printers seem to be working fine. Mike Frazier, Digital Media Services, LLC

There is common problem for new Epson printers.
After firmware update by internet - printer will not recognize NOT ORIGINAL cartridge chips.
So if you use CISS or Refillable cartridges - you use not original chips.
If you allow printer make firmware update from Epson server - you will get this problem.
Printer cant see cartridges.
The solution is - to make firmware DownGrade.
You can do it by WIC utility.
Here is videotutorial how to make firmware downgrade on XP-212 printer:
To check if your printer model is supported - find your model in Supported Printers List tab and point mouse to [ I ]
Firmware downgrade requires Firmware Key. You can buy Firmware Key - here
Please note that due to the technical constraints firmware update in normal operating mode is not possible if printer has any errors or ink cartridges is unrecognized or empty.

Run the WIC Reset utility.
First put the Canon printer in Service Mode.
How to put in Service Mode different models:
iP3600 Series, iP4600 Series, MP240 Series, MP550 Series :
1. In order to execute any service functions on this printer you need to start it in the service mode:
1.1. Power cord must be connected and printer is powered off.
1.2. Press and hold resume/cancel button (one with triangle in the circle).
1.3. Press ON button while holding resume/cancel button (now you are holding both).
1.4. While holding the ON button press resume/cancel button 2 times.
1.5. Each time when you are pressing resume/cancel button the alarm and power LEDs light alternately.
1.6. Release ON button.
1.7. If your printer have a touch screen you must hold area on the screen where resume/cancel button is normally appear.
2. When everything done right you will see the following:
2.1. If printer have a screen it will be black or show "service mode" text.
2.2. New device will be found on the PC named "CanonDevice".
2.3. "Canon Device" will appear in the list after pressing "Refresh detected printers list" button.
3. In order to reset waste counters you need to do next:
3.1. Insert several sheets of paper to the rear tray and casette.
3.2. Select waste counter in the "Waste Counter(s) control group and click "Clear".
iP2700 Series, iP4800 Series, MG5100 Series:
1. In order to execute any service functions on this printer you need to start it in the service mode:
1.1. Power cord must be connected and printer is powered off.
1.2. Press and hold resume/cancel button (one with triangle in the circle).
1.3. Press ON button while holding resume/cancel button (now you are holding both).
1.4. While holding the ON button press resume/cancel button 5 times.
1.5. Each time when you are pressing resume/cancel button the alarm and power LEDs light alternately.
1.6. Release ON button.
1.7. If your printer have a touch screen you must hold area on the screen where resume/cancel button is normally appear.
2. When everything done right you will see the following:
2.1. If printer have a screen it will be black or show "service mode" text.
2.2. New device will be found on the PC named "CanonDevice".
2.3. "Canon Device" will appear in the list after pressing "Refresh detected printers list" button.
3. In order to reset waste counters you need to do next:
3.1. Insert several sheets of paper to the rear tray and casette.
3.2. Select waste counter in the "Waste Counter(s) control group and click "Clear".
MP190 series, MP230 series, MP250 series, MP260 series, MP270 series, MP280 series, MP480 series, MP490 series, MP493 series, MP495 series, MP540 series, MP620 series, MP630 series, MP980 series, MX320 series, MX340 series, MX350 series, MX360 series, MX370 series, MX410 series, MX420 series, MX430 series, MX510 series, MX710 series, MX870 series, MX880 series, MX890 series, iP4900 series, iP7200 series, MG2100 series, MG2200 series, MG3100 series, MG3200 series, MG4100 series, MG4200 series, MG5200 series, MG5300 series, MG5400 series, MG6100 series, MG6200 series, MG6300 series, MG8100 series, MG8200 series :
1. In order to execute any service functions on this printer you need to start it in the service mode:
1.1. Power cord must be connected and printer is powered off.
1.2. Press and hold resume/cancel button (one with triangle in the circle).
1.3. Press ON button while holding resume/cancel button (now you are holding both).
1.4. While holding the ON button press resume/cancel button 2,5 or 6 times.
1.5. Each time when you are pressing resume/cancel button the alarm and power LEDs light alternately.
1.6. Release ON button.
1.7. If your printer have a touch screen you must hold area on the screen where resume/cancel button is normally appear.
2. When everything done right you will see the following:
2.1. If printer have a screen it will be black or show "service mode" text.
2.2. New device will be found on the PC named "CanonDevice".
2.3. "Canon Device" will appear in the list after pressing "Refresh detected printers list" button.
3. In order to reset waste counters you need to do next:
3.1. Insert several sheets of paper to the rear tray and casette.
3.2. Select waste counter in the "Waste Counter(s) control group and click "Clear".
For Canon MG8150 etc..:
1. Figure where the Resume-button is located (it is hidden behind a black touchscreen in the same lane and right of the Color-Button and above the yellow indicator light)
2. Turn the Power off, touch the Resume-Button and hold it
3. Press the Power-button still holding the Resume-button
4. Release the Resume-button and wait for 5 to 10 seconds, then touch the Resume-button 5 times
5. Release the Power-button
6. Now the MG8150 is in the Service-mode (No LED-Lights will light, it is just black)

Refilling the Ink Tanks in Epson L-series printers: L110, L210 etc
This pictures show how to refill the Black Ink. However the pictures are the same for all other colors.
After refilling all ink tanks You have to reset ink levels.
See if the Ink Drop is Red - then press Resume button to reset all ink levels.
Turn printer OFF and then ON.

Epson PX730WD Adjustment Program available now - http://www.2manuals.com/product_info.php?products_id=1496
Epson PX820FWD Adjustment Program available now - http://www.2manuals.com/product_info.php?products_id=1501
Epson ME-10, ME-101, ME-303, ME-401 Adjustment Program available now - http://www.2manuals.com/product_info.php?products_id=1499