Mita PointSource Ai 5555 - Tray Up-Down Control

2 - O - 5
LCT PAPER TRAY SECTION
2. Signals
a. Input signals
(1) PS142 (PS142 → CB)
1500 tray upper limit detection signal.
This signal becomes [L] when the upper limit is de-
tected.
(2) TRAY (15) ADD (MS141 → CB)
“1500 tray loaded” detection signal.
This signal is the TMP4 signal which is input via MS141
when the tray is detected.
(3) PS143 (PS143 → CB)
1000 tray upper limit detection signal.
This signal becomes [L] when the upper limit is reached.
(4) TRAY (10) ADD (MS142 → CB)
“1000 tray loaded” detection signal.
This signal is the TM4 signal which is input via MS142
when the tray is detected.
(5) PS160 (PS160 → CB)
LCT conveyance door open/close detection signal
[H]: LCT conveyance door open
[L]: LCT conveyance door closed
b. Output signals
(1) TMP4 (CB → MS141, MS142)
This is a pulse signal which detects the fact that the
1500 tray and the 1000 tray are loaded.
(2) M141 DRIVE (CB → M141)
M141 ON/OFF drive signal
[H]: M141 OFF
[L]: M141 ON
(3) M142 DRIVE (CB → M142)
M142 ON/OFF drive signal
[H]: M142 OFF
[L]: M142 ON
[4] Tray Up-down Control
724-183-B3
83-B6
83-B5
83-B7
120-A7
120-A10
120-A11
120-B3
120-B6
120-B5
120-A6
120-A8
120-A9
SGND
78-4
78-5
24VDC
24VDC
PS143
5VDC
PS160
M142 DRIVE
TMP4
TRAY (10) ADD
SGND
PS142
5VDC
M141 DRIVE
TMP4
TRAY (15) ADD
724-2
PS143
724-3
725-1
725-2
PS160
M142
MS142
MS141
M141
CB
DCPS
725-3
711-1
711-2
PS142
711-3
The tray rises as a result of the transmission of the rotational
force of M141 (tray (1500)) and M142 (tray (1000)) by means
of the drive wires (four wires each).
M141 and M142 are driven by the CB (control board).
Related signals are MS141 (LCT interlock (1500)), MS142
(LCT interlock (1000)), PS142 (LCT upper limit detection
(1500)), PS143 (LCT upper limit detection (1000)), and PS160
(LCT conveyance open/close detection).
1. Operation
When MS141 or MS142 detects a paper tray, M141 or
M142 goes ON, causing the corresponding tray to rise.
The tray rises until PS142 or PS143 detects the upper limit
of the paper and goes ON, then M141 or M142 goes OFF,
and the tray stops rising.
The paper is fed until PS142 or PS143 goes OFF, then
M414 or M142 goes ON once again, and the tray rises.
The lowering operation of both the 1500 tray and 1000 tray
takes place mechanically.