No Paper Detection Control - Minolta Di551 Service Manual

[6] No Paper Detection Control

5V2
S.GND
DCPS
No paper in the tray is detected by PS33 (no
paper/BP) which is controlled by PRCB (printer
control board).
1. Operation
When the tray becomes empty, PS33 (no paper/
BP) is turned OFF, displaying a message on the
LCD via OB1 (operation board/1).
2. Signal
a. Input signal
(1) BP_0PS (PS33 to PRCB)
No paper detection signal
[L]: Paper does not exist.
[H]: Paper exists.
5V3
PS33
BP_OPS
SGND
PRCB
2-L-5
BY-PASS TRAY