1-28
LCT/PFU SECTION
215-B1
215-B2
216-1
216-3
216-5
215-B3
215-A7
215-B9
LCT-OUT1
LCT-OUT2
5V DC2
PS110
SGND
5V DC2
PS114
SGND
M102
PS110
PS114
ADUDB
[4] LCT Lift Control
Lifting of the LCT tray is driven by M102 (LCT motor). M102
is controlled by the ADUDB (ADU drive board).
1. Operation
a. LCT lifting (when inserting the LCT tray)
When PS114 (LCT PS) detects insertion of the LCT tray,
M102 (LCT motor) drives the paper lift plate up.
When PS110 (LCT upper limit PS) detects the top of the
paper, M102 stops.
b. LCT lifting (after paper feeding is conducted)
When the top of the paper lowers due to paper feeding from
the LCT tray, PS110 is turned OFF and M102 drives the
paper lift plate up.
When PS110 (LCT upper limit PS) detects the top of the
paper, M102 stops.
2. Signal
a. Input signal
(1) PS114 (PS114
→
ADUDB)
This is the LCT tray insertion detection signal.
[L]: LCT tray insertion detected
[H]: LCT tray not detected
(2) PS110 (PS110
→
ADUDB)
This is the the top of the paper detection signal.
[L]: Top of the paper detected
[H]: Top of the paper not detected
b. Output signal
(1) LCT-OUT1 (ADUDB
→
M102)
(This is the 24V DC power supply line for M102.)
(2) LCT-OUT2 (ADUDB
→
M102)
This is the 24V DC power supply line for M102.
[L] : M102 ON
[H] : M102 OFF