Service manual

AR-M351U/M451U, AR-M355U/M455U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 29
(3) Paper detection method of each tray
1) Machine 1st tray
Paper detection is performed by VR in linkage with both side
guides.
2) Multi-purpose tray
Paper detection is performed by VR in linkage with both side
guides and the detector in linkage with the rear edge plate.
For the other than above, the paper size is considered as "Extra."
3) 2nd and 3rd steps of 3-step paper feed tray
Paper detection is performed by the detector in linkage with
the rear edge plate.
Paper size for automatic detection
Paper size
Width detection
pattern
Vertical detection
pattern
B5 C 1
A4 A 2
B5R G 3
A4R E 4
Foolscap D 5
B4 B 6
A3 A 7
LT B 2
EX-R F 3
LTR D 4
LGL D 6
WLT B 7
CSS2
CSS1
CSS3
CSS4
Vertical size
detection pattern
Detection SW status
AB series size Inch series size
Detection width
range
CSS1 CSS2 CSS3 CSS4
1 ON ON OFF ON B5 EXTRA 147.0 - 198.0
2 OFF ON OFF ON A4 LT 198.0 - 237.0
3 OFF ON ON ON B5R EX-R 237.0 - 274.0
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