Ricoh st32 Service Manual
20-BIN SORTER STAPLER
(Machine Code: A834)
24 February, 1999 SPECIFICATIONS
1. OVERALL MACHINE INFORMATION
1.1 SPECIFICATIONS
Paper Size for Bins Sort/Stack Modes:
Lengthwise: A6 to A3
5
" x 8
1/2
Sideways: A5 to A4
5
" x 8
1/2
Paper Weight for Bins: Sorting: 52 ~ 160 g/m2 (14 ~ 43 lb)
Stacking: 52 ~ 160 g/m2 (14 ~ 43 lb)
Stapling: 52 ~ 160 g/m2 (14 ~ 43 lb)
Bin capacity: Sorting:
A4, 8
x 11" or smaller:
1/2
30 copies (80g/m2, 20 lb)
B4, 8
x 14" or larger:
1/2
25 copies (80g/m2, 20 lb)
Stacking:
A4, 8
x 11" or smaller:
1/2
25 copies (80g/m2, 20 lb)
B4, 8
x 14" or larger:
1/2
20 copies (80g/m2, 20 lb)
" (HLT) to 12" 18"
1/2
" (HLT) to 8
1/2
" x 11" (LT)
1/2
Stapler Capacity: 2 ~ 30 copies (80 g/m2, 20 lb)
Proof Tray Capacity: 100 sheets (80g/m2, 20 lb)
Number of Bins: 20 bins + proof tray
Stapling Position:
a = 6 ± 3 mm b = 6 ± 3 mm
A834V500.WMF
Options
A834-1
SPECIFICATIONS 24 February, 1999
Staple Replenishment: Cartridge exchange (2,000 staples/cartridge)
Power Source: DC 24 V (from the copier)
Power Consumption: Average: less than 35 W
Average for Sorting: less than 30 W
Average for Stapling: less than 33 W
Weight: 20.5 kg (45.2 lb)
Dimensions (W x D x H): 430 x 570 x 680 mm (17.0" x 22.5" x 26.8")
•
Specifications are subject to change without notice.
A834-2
24 February, 1999 COMPONENT LAYOUT
1.2 COMPONENT LAYOUT
1.2.1 MECHANICAL COMPONENT LAYOUT
1
2
7
3
4
6
5
1. Helical Wheels
2. Jogger Plate
3. Grip Assembly
4. Transport Rollers
5. Staple Unit
6. Bins
7. Proof Tray
A834V501.WMF
Options
A834-3
COMPONENT LAYOUT 24 February, 1999
1.2.2 DRIVE LAYOUT
1 2
4
1. Jogger Drive Belt
2. Transport Roller
3. Wheel Drive Belts
4. Helical Wheels
3
A834V502.WMF
A834-4
24 February, 1999 COMPONENT LAYOUT
1.2.3 ELECTRICAL COMPONENT DESCRIPTION
Refer to the electrical component layout on the reverse side of the point to point
diagram (on waterproof paper).
Symbol Name Function Index No.
Motors
M1 Main Drive Drives the transport roller 16
M2 Jogger Drives the jogger plate to square the copies 9
M3 Bin Drive Drives the bins 14
M4 Stapler Drives the stapler hammer 7
Grip Drives the grippers forwards and back into
M5
Sensors
S1
S2
S3
S4 Sorter Entrance Detects paper jams 2
S5
S6 Wheel Detects the bin position. 12
S7
S8
S9 Staple End Detects when the staples have run out 18
S10
Bin
(Phototransistor)
Grip Home
Position
Bin Home
Position
Jogger Home
Position
Bin (LED) Detects whether there is paper in the bins
Stapler Paper Detects whether any copies are under the
Staple Hammer
Home Position
the bin to grip the copies and bring them to
the stapling position
Detects whether there is any paper in the
bins (light receiving element)
Detects when the grip assembly cam gear
has rotated once
Detects whether the bins are at home
position
Detects whether the jogger plate is in its
home position
(light emitting element)
staple hammer.
Detects whether the staple hammer is at
home position
3
1
6
11
13
10
4
17
Switches
SW1
SW2 Stapler Cuts the signals to the stapler. 8
Circuit Board
PCB1 Main Controls all sort er/ stapler functions 15
Door Safety Cuts the dc +24 V supply when either the
unit or the stapler cover is opened.
A834-5
5
Options
BASIC OPERATION 24 February, 1999
2. DETAILED DESCRIPTIONS
2.1 BASIC OPERATION
2.1.1 NORMAL MODE AND SORT/STACK MODE
[F]
[E]
[A]
[C]
[B]
[D]
A834D500.WMF
Copies exiting the copier pass through the entrance guide plate [A]. The transport
roller will send copies either to the proof tray or to each bin, depending on the
selected mode.
During copying, all rollers in the sorter stapler transport the paper at a speed which
depends on the copier. When the trailing edge of the copy passes the fusing exit
sensor, the speed of the rollers changes to 600 mm/s. This makes enough time for
the jogger plate to square the stack of paper and to stack the paper smoothly into
the bins.
Normal (Proof) Mode
When the “Start” key is pressed, the transport motor [B] energizes to rota te the
transport rollers [C]. The transport rollers send copies to the proof tray directly.
Sort Mode
When sort mode is selected, the bin drive motor [D] energizes to rotate the helical
wheels. The helical wheels [E] rotate twice to move the top bin to the transport
roller position, then the first copy is delivered to the top bin.
After the first copy of the first original has been fed to the top bin, the bin drive
motor moves the bins up one step (the helical wheels rotate once) so that the
second copy of the first original will be delivered to the next bin.
The jogger plate [F] squares the copies after each copy has been fed to a bin. After
all the copies of the first original have been delivered to each bin, the sorter stapler
maintains its status (the bin drive motor does not rotate).
A834-6
24 February, 1999 BASIC OPERATION
The first copy of the second original is delivered to the final bin that was used for
the first original, then the final bin descends one step. The bins descend each time
a copy of the second original is delivered.
The direction of motion of the bins alternates for each page of the original until the
copy run is finished.
Stack Mode
[A]
A834D501.WMF
When stack mode is selected, the top bin advances to the transport rolle r position
in the same way as in sort mode.
After the first copy is delivered to the top bin, the jogger plate [A] moves across to
square the copy. The jogger plate squares the copies after each copy has been fed
to a bin.
After one set of copies for the first original has been delivered to the top bin, the bin
drive motor moves the bins up one step. Then, one set of copies of the second
original will be delivered to the next bin.
Options
A834-7
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