Paper Size Detection Control - Develop ineo+ 6500 Service Manual

4. PAPER FEED SECTION
4.3.2

Paper size detection control

A. Main scan/Sub scan direction detection
• The detection methods differ between main scanning direction and sub-scanning direction.
(1) Main scan direction
• The size in the main scan direction is detected by the paper size VR/1 (VR1) and /2 (VR3) that move
together with the paper guide. The detected size is sent to the main body within a fixed time period after the
tray is set.
(2) Sub scan direction
• The size detection in the sub scan direction is made by the following each pair of the sensors: the paper
size sensors/Rt1 (PS5) [3] and /Lt1 (PS6) [4] for tray /4, /Rt2 (PS13) [3] and /Lt2 (PS14) [4] for tray /5.
• When the paper rear guide [6] is moved, the detection cams /Up [1] and /Lw [2] that are different in shape
are pressed by the knob [5]. Depends on the position of the paper rear guide, the paper size sensors/Rt1
[4], /Rt2 [4] and /Lt1 [3], /Lt2 [3] are turned on and off.
[1]
[1] Detection cam/Up
[2] Detection cam/Lw
[3] Paper size sensors/Rt1 (PS5) and /Rt2
(PS13)
10
[2]
[4] Paper size sensors/Lt1 (PS6) and /Lt2
(PS14)
[5] Knob
[6] Paper rear guide
Theory of Operation Ver1.0 Sep.2006
[5]
[3] [4]
[6]
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