Ricoh SR5090 Quick start guide

Finisher SR5090, Booklet Finisher
SR5100
Machine Code: D3GD, D3GC
Field Service Manual
Ver 1.0
Latest Release: March, 2019
Initial Release: March, 2019
Copyright (c) 2019 Ricoh Co.,Ltd.

Symbols, Abbreviations
This manual uses several symbols and abbreviations. The meaning of those symbols and abbreviations
are as follows:
Symbol
What it means
Clip ring
Screw
Connector
Clamp
E-ring
Flat Flexible Cable
Timing Belt
SEF
Short Edge Feed
LEF
Long Edge Feed
K
Black
C
Cyan
M
Magenta
Y
Yellow
B/W, BW
Black and White
FC
Full color
[A] Short Edge Feed (SEF)
[B] Long Edge Feed (LEF)

1
Table of Contents
1. Detailed Descriptions.......................................................................................................................... 4
Major Changes from the Previous Machine........................................................................................... 4
Improved Stackability of Stapled Sheets............................................................................................ 4
Easier Replacement of Staple Cartridge............................................................................................ 6
Storing Extra Staple Cartridges.......................................................................................................... 7
Detaching and Reattaching the Booklet Tray End Fence By the Customer...................................... 8
Staple Near-End Detection................................................................................................................. 8
Specifications.......................................................................................................................................... 9
Finisher SR5090................................................................................................................................. 9
Booklet Finisher SR5100.................................................................................................................. 11
Paper Specifications......................................................................................................................... 14
Punch Unit PU3090.......................................................................................................................... 16
Layout................................................................................................................................................... 18
General Layout................................................................................................................................. 18
Electrical Component Layout............................................................................................................ 19
Transport Layout............................................................................................................................... 24
Proof Transport Layout (Drive)......................................................................................................... 24
Proof Transport Layout (Sensors).................................................................................................... 25
Shift Transport Layout (Drive) .......................................................................................................... 25
Mechanisms.......................................................................................................................................... 26
Shift Transport.................................................................................................................................. 26
Pre-Stack (Corner Stapling) ............................................................................................................. 26
Pre-Stack (Booklet Stapling) ............................................................................................................ 27
Shift Tray Movement/ Paper Height Detection/ Tray Full Detection................................................ 29
Pull-in Roller/ Paper Stack Holder.................................................................................................... 33
Corner Stapling.................................................................................................................................36
Staple Near-End Detection............................................................................................................... 41
Saddle Stitching (Booklet Stapling).................................................................................................. 42
2. Replacement and Adjustment .......................................................................................................... 52
Covers .................................................................................................................................................. 52
Rear Upper Cover, Rear Lower Cover............................................................................................. 52
Upper Cover...................................................................................................................................... 52
Front Cover....................................................................................................................................... 54
Front Left Side Cover........................................................................................................................ 54
Paper Guide Cover........................................................................................................................... 55
Lower Tray........................................................................................................................................ 56
Proof Tray......................................................................................................................................... 56

2
Shift Tray (Upper Tray)..................................................................................................................... 57
End Fence......................................................................................................................................... 57
Boards .................................................................................................................................................. 61
Controller Board (PCB1)................................................................................................................... 61
Corner Stapling Unit, Trailing Edge Alignment Unit............................................................................. 64
Corner Stapling Unit ......................................................................................................................... 64
Trailing Edge Alignment Unit............................................................................................................ 68
Main Unit (Motors)................................................................................................................................ 69
Stacking Sponge Roller Lift Motor.................................................................................................... 69
Leading Edge Guide Motor............................................................................................................... 69
Paper Stacking Holder Motor ........................................................................................................... 70
Exit Motor.......................................................................................................................................... 71
Feed-out Belt Motor.......................................................................................................................... 71
Jogger Motor..................................................................................................................................... 72
Main Unit (Sensors).............................................................................................................................. 73
Shift Tray Paper Height Sensor........................................................................................................ 73
Paper Stacking Holder HP Sensor................................................................................................... 74
Stacking Sponge Roller HP Sensor ................................................................................................. 75
Staple Tray Paper Sensor (S31)...................................................................................................... 76
Feed-out Belt HP Sensor.................................................................................................................. 76
Leading Edge Guide HP Sensor...................................................................................................... 77
Upper Tray Height Limit Switch........................................................................................................ 78
Sub Height Sensor............................................................................................................................ 78
Saddle Stitch Unit (Motors)................................................................................................................ 80
Saddle Stitch Unit............................................................................................................................. 80
Press Fold Motor .............................................................................................................................. 81
Booklet Jogger Motor........................................................................................................................ 85
Paper Guide Unit.................................................................................................................................. 87
Paper Guide Unit.............................................................................................................................. 87
Paper Guide HP Sensor................................................................................................................... 89
Paper Guide Motor ........................................................................................................................... 91
Stapler Unit........................................................................................................................................... 93
Stapler Unit....................................................................................................................................... 93
Punch Unit............................................................................................................................................ 96
Fold Adjustments.................................................................................................................................. 98
Adjusting the Alignment of the Flat Fold Rollers.............................................................................. 98
Adjusting the Folding Speed...........................................................................................................100
Flat Fold Booklet Unit Home Position Adjustment ......................................................................... 101

3

1.Detailed Descriptions
4
1.Detailed Descriptions
Major Changes from the Previous Machine
Improved Stackability of Stapled Sheets
New Retraction Mode for the Delivery of Stapled Sheets
To improve the stackability of stapled sheets, the trailing edge alignment unit (framed in yellow) now
has a mechanism for controlling stapling job delivery.

1.Detailed Descriptions
5
[A]: Paper Stacking Holder
[B]: Stacking Sponge Roller
[C]: Actuator for the Shift Tray Paper Height Sensor (S35)
After paper delivery, the stacking sponge roller [A] and actuator [B] move to the return position.
During paper delivery, they move to the home position. The stacking sponge roller retracts slightly into
the end fence.
On this machine, when delivering stapled sheets, the stacking sponge roller [A] and actuator [B] retract
entirely into the end fence.
On the previous machine, they were at the home position even for stapled jobs.
The thickness of the leading edge of the paper stacking holder [D] was reduced to create a wider gap

1.Detailed Descriptions
6
with the paper exit roller [E], thus allowing a larger amount to be retracted.
New Sensors
Two sensors [A] (the front and rear Sub Height Sensors) were added to detect stapled sheets.
When sheets stapled at one point (corner stapling) are stacked, the height of the stapled corner is
higher and hits the paper guide, edge guide, or the next stapled booklet. When one of the sensors
detects paper, the machine determines that the height limit has been reached and stops printing.
Easier Replacement of Staple Cartridge
The exterior of the stapler unit has been changed from a bracket to a resin cover.
The handle [A] is joined to the cover, and there is a decal [B] for checking operation.