2 - L - 16
PAPER FEED UNIT
M17 DRIVE
24VDC
M18 DRIVE
24VDC
SGND
PS16
5VDC
PS17
PS20
PS21
7-A1
7-A2
7-A3
7-A4
7-B11
7-B3
7-A11
7-B4
7-B9
7-B10
CB
PS16
58-1
58-2
58-3
PS17
59-1
59-2
59-3
PS20
327-1
327-2
327-3
PS21
328-1
328-2
328-3
M17
M18
[5] Paper Up-down Control
When a paper feed tray is loaded, M17 (upper tray) or M18
(lower tray) goes ON for a fixed period, raising the bottom plate
in the tray.
Related signals are PS16 (upper tray upper limit detection),
PS17 (lower tray upper limit detection), PS20 (upper tray set
detection) and PS21 (lower tray set detection).
1. Operation
a. ON timing
M17 or M18 is turned ON by the paper size detecting
sensor.
b. ON timing
M17 or M18 is turned OFF by PS16 or PS17 going ON.
2. Signals
a. Input signals
(1) PS16 (PS16 → CB)
Upper tray upper limit detection signal
The paper in the upper tray is raised by M17, and when
it reaches the upper limit position this signal becomes
[L].
(2) PS17 (PS17 → CB)
Lower tray upper limit detection signal
The paper in the upper tray is raised by M18, and when
it reaches the upper limit position this signal becomes
[L].
(10)M40 CONT (CB → M140)
M40 ON/OFF control signal
[L]: M40 ON
[H]: M40 OFF
(11)M140 PLL (CB→ M140)
M140 PLL speed stabilizing signal
(12)M140 CLK (CB → M140)
M140 speed instruction signal
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