TRAY 3 PAPER FEED UNIT (7155/7165)
2-K-7
2 UNIT EXPLANATION
2. Signals
a. PRCB input signals
(1) T3SIZE_S_PS (PS17 to PRCB)
Paper size detection signal
[L]: Paper does not exist.
[H]:Paper exists.
(2) T3SIZE_L_PS (PS18 to PRCB)
Paper size detection signal
[L]: Paper does not exist.
[H]:Paper exists.
(3) T3SIZE_VR (VR3 to PRCB)
Paper width detection signal
[6] No Paper Detection Control
No paper in the tray is detected by PS15 (no
paper/3), and which is controlled by the PRCB
(printer control board).
1. Operation
When the tray becomes empty, PS15 (no paper/
3) is turned OFF, displaying a message on the
LCD via OB1 (operation board/1).
2. Signals
a. PRCB input signals
(1) PS15 (PS15 to PRCB)
No paper detection signal
[L]: Paper does not exist in tray.
[H]:Paper exists in tray.
PRCB
DCPS
5V2
S.GND
PS15
5V3
T3_0PS
SGND
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