4.4 ORIGINAL SIZE DETECTION ....................................................3-8
4.5 PAPER TRANSPORT MECHANISM ........................................3-9
4.6 THICK/THIN ORIGINAL MODES .............................................3-10
4.7 ORIGINAL FEED-OUT MECHANISM .....................................3-11
4.8 TWO-SIDED ORIGINAL FEED MECHANISM .........................3-12
5. TIMING CHARTS ............................................................ 3-13
5.1 A4 SIDEWAYS: 1 SIDED ORIGINAL ........................................3-13
5.2 COMBINE 2 ORIGINAL MODE ................................................3-14
5.3 A4 SIDEWAYS: DUPLEX ........................................................3-15
4. PAPER TRAY UNIT A550/A549
1. SPECIFICATIONS.............................................................. 4-1
2. COMPONENT LAYOUT..................................................... 4-2
2.1 MECHANICAL COMPONENT LAYOUT .....................................4-2
2.2 DRIVE LAYOUT...........................................................................4-3
2.3 ELECTRICAL COMPONENT DESCRIPTION.............................4-4
3. OVERVIEW......................................................................... 4-5
4. DRIVE MECHANISM.......................................................... 4-6
5. PAPER FEED AND MISFEED DETECTION TIMING ....... 4-7
5. PAPER TRAY UNIT A553
1. SPECIFICATIONS.............................................................. 5-1
2. COMPONENT LAYOUT..................................................... 5-2
2.1 MECHANICAL COMPONENT LAYOUT .....................................5-2
2.2 DRIVE LAYOUT...........................................................................5-2
2.3 ELECTRICAL COMPONENT DESCRIPTION.............................5-3
3. OVERVIEW......................................................................... 5-4
4. DRIVE MECHANISM.......................................................... 5-5
5. PAPER FEED AND MISFEED DETECTION TIMING ....... 5-6
Rev. 7/95
A156/A160/A162 vi STM
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