Develop QC 2235 Plus Service Manual page 185

QC 2235plus Theory of Operation Ver1.0 Mar. 2004
I Outline
1. Product specification ............................................................................................ 1-1
1.1 Type ................................................................................................................... 1-1
1.2 Functions ........................................................................................................... 1-1
1.3 Paper type ......................................................................................................... 1-1
1.3.1 Non-Sort ....................................................................................................... 1-1
1.3.2 Sort/Group .................................................................................................... 1-1
1.3.3 Sort staple/Group staple............................................................................... 1-2
1.4 Stapling.............................................................................................................. 1-2
1.5 Sort and staple capacity .................................................................................... 1-2
1.5.1 Stacking with no stapling, with the same size paper (80g/m2) ..................... 1-2
1.5.2 Stacking with stapling ................................................................................... 1-3
1.6 Machine specifications....................................................................................... 1-3
1.7 Operating environment ...................................................................................... 1-3
II Composition/Operation
1. Overall composition.............................................................................................. 2-1
2. Center cross section ............................................................................................ 2-2
3. Drive system ........................................................................................................ 2-3
4. Mechanical operations ......................................................................................... 2-4
4.1 Paper transport .................................................................................................. 2-4
4.1.1 Paper transport mechanism ......................................................................... 2-4
4.1.2 Paper switchback mechanism ...................................................................... 2-8
4.1.3 Roller/rolls spacing mechanism.................................................................... 2-9
4.2 Finisher tray ..................................................................................................... 2-10
4.2.1 Paper aligning mechanism ......................................................................... 2-11
4.3 Stapling............................................................................................................ 2-13
4.3.1 Stapling mechanism ................................................................................... 2-13
4.3.2 Stapling unit moving mechanism ................................................................ 2-14
4.3.3 Staple sheet empty detection ..................................................................... 2-15
4.4 Elevator tray ..................................................................................................... 2-16
4.4.1 Elevator tray ascent/descent mechanism ................................................... 2-16
4.4.2 Elevator tray shifting mechanism ................................................................ 2-17
4.5 Horizontal transport unit .................................................................................. 2-18
4.5.1 Paper transport mechanism ....................................................................... 2-19
CONTENTS
i