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| + | [title] Check sensors using maintenance mode |
|---|---|
| + | [* black] There are several sensors linked with the ink cartridge tray. For each cartridge, the following sensors exist: ink cartridge detection sensor (red), remainig ink / ink level sensor (blue) and some chip contacts (green, to read the ink chip). |
| + | [* black] To check the first two sensors, enter the maintenance mode. For reference on how to do this, refer to the [document|5759|service manual, Chapter 5]. (General navigation in maintenance mode is also described in the service manual.) |
| + | [* black] Press the keys 3 and 2 to enter maintenance mode 32 (sensor operational check). The annoying beeping can be deactivated by pressing the SET key (navigate through the keyboard by using the << and >> keys) |
| + | [* black] Press the Mono (or Mono Start) key once. If no cartridge is installed, the top line in the display should be empty. |
| + | [* black] Test the ink detection & remaining ink sensors for each cartridge by inserting a thin opaque object (e.g. a sheet of paper) into the sensor slots. If the sensor is intact, two letters should appear on the display for each sensor (first letter = sensor type (E = remaining ink, I = detection sensor), second letter for ink color, i.e. cartridge slot) |
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