AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 28
C. Operational descriptions
[Paper feed operation]
(1) Preliminary operation except for the manual feed
tray
1) Load paper and insert the tray, and the tray sensor will be
turned on.
2) The lift-up motor rotates.
3) The upper limit sensor turns on.
(2) Paper feed operation
1) The take-up roller descends.
2) The take-up roller rotates to feed paper.
3) At the same time the paper feed roller rotates to feed paper to
the transport section.
4) At that time, the separation roller rotates to prevent against
overlapped feed.
[Paper size detection]
(1) Paper width detection VR (MPT/BPT/Machine tray)
Width detection is performed by calculating the voltage (A/D con-
version value) of the slide VR in linkage with the side guide plate.
Paper width and paper size
(The range is set to Standard value ± 6 [mm].)
(2) Paper length sensor
(MPT/2nd and 3rd steps of 3-step paper feed desk)
Length detection is performed by combination of cassette size
sensors 1 - 4.
Paper length and paper size
Name
Function
Remark
1
Take-up roller
Picks up paper and transports it to the paper feed roller.
2
Paper feed roller
Feed paper in the machine.
3
Separation roller
Rotates simultaneously with the paper feed roller to prevent against overlapped feed.
For the manual feed tray, the separation pad is used instead of the roller.
4
Paper upper limit sensor
Detects the top surface of paper and stops paper at the feed position.
Except for BPT
5
Paper sensor
Detects paper presence.
(Paper empty, upper limit detection: ON / Paper presence detection: OFF)
6
Lift-up motor
Lifts the paper feed base up to the paper feed position (upper limit detection position).
Except for BPT
Width detection
pattern
Paper size
Standard
value (mm)
Range (mm)
A
A3/A4
297.0
303.0- 291.0
B
WLT/LT
279.4
285.4 - 273.4
C
B4/B5
257.0
263.0 - 251.0
D
LG/LTR/Foolscap
215.9
221.9 - 209.9
E
A4R
210.0
216.0 - 204.0
F
Executive-R
184.1
190.1 - 178.1
G
B5R
182.0
188.0 - 176.0
CSS2
CSS1
CSS3
CSS4
Vertical size
detection pattern
Detection SW status
AB series
size
Inch series
size
Detection width
range
Same range
size
CSS1
CSS2
CSS3
CSS4
1
ON
ON
OFF
ON
B5
EXTRA
147.0 - 198.0
Postcard
Monarch
2
OFF
ON
OFF
ON
A4
LT
198.0 - 237.0
DBL P/C
C5
DL
3
OFF
ON
ON
ON
B5R
EX-R
237.0 - 274.0
COM-10
ISO-B5
4
OFF
OFF
ON
ON
A4R
LTR
274.0 - 314.0
5
ON
OFF
ON
ON
Foolscap
Extra
314.0 - 347.0
6
ON
OFF
ON
OFF
B4
LGL
347.0 - 389.0
7
ON
ON
ON
OFF
A3
WLT
389.0 - 432.8
0
OFF
OFF
OFF
OFF
Tray not installed
Содержание AR-M351N
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