INSTALLATION MANUAL ON CISS FOR PRINTER CANON IX 4000/IP 4200 5IV. Chips recorder disappearsWhen printer works for some time, it will notice you that the cart ridge is out ofink, and can't goon printing, choose "confirm "or "yes "butt on, press "Recover "button for about 10 seconds then you can go on printing. After this step, the computer can'tshow the real cartridge ink volume, the indicator shows empty. You do need redo thisstep for many times till all ink volume shows empty.Remark: The printer can't show the real cartridge ink volume and computershow it as empty, this is normal case, you just need to guarantee that there is ink in thecartridge, you can go on printing as normal.IV. Take the CISS offDuring printing, if you need to take the system off, please first take off air filter,insert back air plug, move tube valve to CLOSE position (4-1-1), Move out cartridgeholder, detach the rack (4-1-2) (can't be too rude to change the shape of rack). Take inkcartridges out, press back the red cover at 45 degree angle (4-1-3).Notice: If you do not close the tube valve before taking the cartridge out, or youdo not install the red cover back to cartridge, it maybe result that ink in the cartridgeswill flow back to the external tank or flow out from the cartridge nozzle, these case willdamage the second normal use of system.Pic. 4-1-1 Pic. 4-1-2 Pic. 4-1-3V. Refill inkDuring printing, if you found out that the ink level in the tank is below the redline, please add ink according to the methods.VI. Check air balance tubeDuring printing, if you find some abnormal cases, such as bad output, ink dripout on paper, then you need to check the air balance tube to see if exist ink. If yes,please do according to the manual of "ink pump out from balance tubeā.VII. Warnings1. During printing, please do not take cartridges over than the printer. Pleasekeep ink tank and printer in the same level.2. During printing, do not inverse, lift up or lower ink tanks.