Paper Size Detection - Ricoh K-C3 Service Manual

B245/B276/B277/B268/B269 Service Manual

Paper Size Detection

Paper Tray
SW
Size
A3, 11" x 17"
A4 LEF
1
A4 SEF, 8 / " x 11"
2
1
A5 LEF, 8 / " x 14"
2
1
8 / " x 13"
2
1
11" x 8 / "
2
* (Asterisk)
ON=Not pushed, OFF=Pushed
There are three paper size micro-switches [A] on the front right plate of the paper tray unit.
The switches are actuated by a paper size actuator [B] behind the paper size indicator plate,
which is on the front right of the tray.
Each paper size has its own actuator, with a unique combination of notches. To determine
which size has been installed, the CPU reads which micro-switches the actuator has
switched off.
The CPU disables paper feed from a tray if the paper size cannot be detected. If the paper
size actuator is broken, or if there is no tray installed, the Add Paper indicator will light.
When the paper size actuator is at the "*" mark, the paper tray can be set up to
accommodate one of a wider range of paper sizes by using User Tools. If the paper size for
this position is changed without changing the User Tool setting, a paper jam will result.
By-pass Tray
1 2 3
Off Off Off
On On Off
On Off Off
Off On On
On Off On
Off On Off
Off Off On
18-Jan-06
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