<![CDATA[iFixit - Answers With Device "OKI C9400"]]> https://www.ifixit.com/Answers/Device/OKI_C9400?rss=yes en-US Sat, 04 Apr 2026 16:08:44 -0700 <![CDATA[OKI C9400: Oki C9400 Colour Printer: Prints very light]]> I have an OKI C9400 Colour Printer.
This worked perfectly when new, but It's been unused for some time,

Now: It displays this error message: cyan toner sensor error

It will still print, BUT NOW the image has gone very bright, eg: the colours are washed out. The cartridges are the original ones supplied with the printer, but it's only printed a few hundred copies.

There are voltages I can check, but as the printer drums are sensitive to light, it would be useful to know if it is possible to check the voltages with all 4 of the printer drums removed.

Many thanks.

⟐ Commented January 27, 2024 at 15:37 MST

]]> https://www.ifixit.com/Answers/View/794846/Oki+C9400+Colour+Printer:+Prints+very+light https://www.ifixit.com/Answers/View/794846 Sat, 27 Jan 2024 15:37:49 -0700