Canon imagePROGRAF iPF510 - Manual (Page 705)

Messages regarding ink
The remaining level of the following ink cannot be
correctly detected.
Cause Corrective Action
Ink level detection cannot work correctly if you use
rell ink tanks. The rell ink tank can no longer be used. See the
section “Ink level detection” in “Disabling Ink Level
Detection” and take the appropriate action.
(→P.672)
Ink Tank Cover / Close Please
Cause Corrective Action
The Ink Tank Cover is open. Close the Ink Tank Cover.
Ink Lvl: Chk xx (xx represents an ink color)
Cause Corrective Action
Not much ink is left. Prepare a new Ink Tank.
We recommend replacing the Ink Tank with a new Ink
Tank at this point if you plan to print large-format or
high-quantity jobs.
Ink Tank / Check xx (xx represents an ink color)
Cause Corrective Action
There is no Ink Tank of the indicated color in the
printer. Load or reload the Ink Tank.
(→P.600)
There is a problem with the Ink Tank. Replace it with a new Ink Tank.
(→P.600)
Error Message 691