Ricoh A028 Installation guide

RICOH FT9101
SERVICE TRAINING MANUAL
LARGE CAPACITY TRAY RT32
FINISHER SR500
PRINTER CONNECTOR UNIT PCU10
KEY COUNTER/PRINTER
CONNECTOR BRACKET KP10
RICOH COMPANY, LTD.

Read This First
A few simple symbols and notations are used to help you read faster and find the information you
need. Before you use this guide, glance over this list of special notations and be sure you
understand what they mean.
NOTE
Information under this heading describes helpful hints, restric-
tions, and how to avoid difficulties.
CAUTION
Failure to pay attention to CAUTION notices can
result in damage to the equipment.
WARNING
Warnings are for your safety. Failure to pay atten -
tion to WARNING information can be dangerous
to you and others.

SECTION 1
OVERALL MACHINE INFORMATION

1. OVERALL MACHINE INFORMATION
1.1 Specifications
1.1.1 Copier
Main body
Configuration: Console
Copy Process: Dry Electrostatic Transfer System
Originals: Sheet/Book
Original Size: Maximum:11" x 17", A3
Minimum: B5
Copy Paper Size: Maximum: 11" x 17", A3
Minimum: B5
Copy Paper Weight: Standard Copying: 16 lb ∼43 lb, 60 ∼163 g/m2
Duplex copying: 17 ∼ 32 lb, 70 ∼120 g/m2
Warm Up Time: Within 7.0 minutes ( room temp. 23°C)
First Copy Time: 6.7 seconds (81/2" x 11", A4, feed from 3rd tray)
Copying Speed: 101 copies/minute ±2% (A4, B5, 81/2" x 11", 81/2" x 14", 81/2" x 13")
81 copies/minute ±2% (B4)
61 copies/minute ±2% (A3, 11" x 17")
Optional Equipment: Finisher
Large Capacity Tray
Reproduction Ratios: See the following table:
LT/DLT version A4/A3 version
Enlargement 129% 141%
121% 122%
115% 115%
Full Size 100% 100%
Reduction
93% 93%
77% 82%
74% 71%
65% 65%
* Desired reproduction ratio(s) can be selected from 3 enlargements and 4 reductions.
Zoom: 64 ∼142% (1%/step)
Copy Tray Capacity: 300 sheets (80 g/m2paper, in continuous copying mode)
Duplex Tray Capacity: 40 sheets (A3, 11" x 17")
80 sheets (Others)
Toner Replenishment: Cartridge exchange
Paper Feed: 1st tray: 500 sheets (80 g/m2paper, not exceeding load limit decal)
2nd tray: 1,000 sheets (80 g/m2paper, not exceeding load limit decal)
3rd tray: 1,000 sheets (80 g/m2paper, not exceeding load limit decal)
Oil Tank Capacity: 3,000 cc
Power Source: 240 volts, 20A
Maximum Power 4.0 kw (Full system)
Consumption: 3.7 kw (Copier with RDH)
Weight: 482 kg (including RDH)
Environmental Conditions: Temperature: 10 ~ 30°C
Humidity: 15 ~ 90%
Standard Condition: 23°C, 65%
1 July 1994 Specifications
1-1

Recirculating document handler
Original Size: Maximum: 11" x 17", A3
Minimum: B5
Original Weight:
RDH mode SADF mode
Maximum 32 lb, 120 g/m243 lb, 160 g/m2
Minimum 17 lb, 64 g/m212 lb, 40 g/m2
Original Set Capacity: 40 sheets (A3, or 11" x 17", 80 g/m2 paper, not exceeding upper limit decal)
80 sheets (Other sizes, 80 g/m2 paper, not exceeding upper limit decal)
Original Set: Face down
Original Feed Speed: Same as copier (in single side copying)
Power Source: 100 V, 50/60Hz, (from copier)
Maximum Power 120 W
Consumption:
Weight: 25.5 kg
1.1.2 Large capacity tray
Copy Paper Size: Legal (81/2" x 14"), Letter (81/2" x 11"),
B4 (257 mm x 364 mm), A4 (210 mm x 297 mm),
B5 (182 mm x 210 mm)
Copy Paper Weight: Same as copier
Tray Capacity: Approximately 3,000 sheets (80 g/m2paper, not exceeding upper limit decal)
Power Source: 100 V, 50/60Hz, (from copier)
Maximum Power 150 W
Consumption:
Weight: 75 kg
Specifications 1 July 1994
1-2

1.1.3 Finisher
Paper Size: Maximum: 11" x 17"/A3
Minimum: B5 sideways
Paper Weight: Standard copying
60 ∼163 g/m2
Staple mode
64 ∼80 g/m2
Paper Capacity: Standard copying
2,000 sheets:
81/2" x 11"/A4 or smaller size (20 lb/80 g/m2)
1,000 sheets:
Other sizes (20 lb/80 g/m2)
Staple mode
See the following table:
Size
Number
of Originals 81/2" x 11"/A4
or smaller size 81/2 x14"/B4 11" x 17"/A3
2 ∼10 sheets 100 sets* 100sets 100sets
11 ∼20 sheets 100 sets 50 set 50 sets
21 ∼ 30 sheets 67 sets 34 sets 34sets
31 ∼40 sheets 50 sets 25 sets 25 sets
41 ∼50 sheets 40 sets 20 sets --
*: Up to 100 stapled copy sets can be stacked because the stapled copy
set makes an uneven stack on the tray.
Stapling Capacity: 11" x 17"/A3 (20 lb/80 g/m2):
from 2 to 30 sheets
Other sizes (20 lb/80 g/m2):
from 2 to 50 sheets
Staple Replenishment: Cartridge exchange
(5,000 pieces/cartridge)
Power Source: AC 100 V (from the copier)
Mean Power Consumption: 110W
Weight 77kg
Stapling Position:
a
b
a a
b
b
a = 0.2" ± 0.08" (5 ± 2 mm)
b = 0.2" ± 0.1" (5 ± 2.5 mm) a = 0.2" ± 0.08" (5 ± 2 mm)
b = 0.2" ± 0.1" (5 ± 2.5 mm) a = 0.2" ± 0.08" (5 ± 2 mm)
b = 5.20" ± 0.08" (132 ± 2 mm)
(81/2" x 11"/A4 or smaller size)
b = 10.5" ± 0.08" (265 ± 2 mm)
(81/2" x 14"/B4 or larger size)
(1 staple) (2 staples)
1 July 1994 Specifications
1-3

1.2 Noise
During warm-up: 64 dB
During standby: 54 dB
One side copying Copier only: 65 dB
Copier + ADF 70 dB
Full system 71 dB
Duplex copying Copier only: 67 dB
Copier + ADF: 71 dB
Full system: 71 dB
1.3 Power Consumption
Mean Power Consumption
Copier Copier + LCT Copier + LCT + Finisher
During copying 3.43 kW 3.44 kW 3.65 kW
During warm-up 2.61 kW 2.62 kW 2.55 kW
During standby
(Fusing lamp OFF) 0.25 k W 0.26 kW 0.30 kW
Main switch OFF
(During first 30 min.) 0.13 kW 0.13 kW 0.13 kW
Main switch OFF
(After 30 min.) 0.07 kW 0.07 kW 0.07 kW
Noise 1 July 1994
1-4

1.4 Machine Dimensions
1.4.1 Copier
1.4.2 LCT
150
680
1,430 1,685
830
1,110
775
550
400 675
975
1 July 1994 Machine Dimensions
1-5

1.4.3 Finisher
1.4.4 Full system
750
975
701
2,610
470
400
1,240
5
5
Machine Dimensions 1 July 1994
1-6

1.5 Outline of Mechanism
1.5.1 Main unit layout diagram
Exposure unit
A xenon lamp is used for flash
exposure. A stepper motor
moves mirrors and lens for the
desired magnification:
0.64 to 1.42
RDH
The air knife separates the leading edges of
the originals. The lowest original is held
against the transport belts by the suction of
the vacuum fan and fed by the belts. Even
in one-to-one copying, this high-speed ADF
can meet 101 CPM. Automatic duplex
copying is also available.
Fusing unit
Heat and pressure roller
system is used with silicon oil.
Paper feed tray
The upper tray stacks
up to 500 sheets. The
middle and lower
trays stack up to
1,000 sheets. FRR
system is used as the
paper feed
mechanism.
Duplex unit
The air knife separates the leading edge of
the copies. The lowest copy is held against
the transport belts by the suction of the
vacuum fan and fed by the belts.
Horizontal transport unit
Transports paper from the
LCT.
Transfer and
separation unit
A high voltage
negative corona
transfers positively
charged toner to
paper. A high voltage
ac corona breaks the
attraction between the
paper and OPC.
Cleaning unit
Magnetic brush system for
cleaning. Scavenging
roller collects toner from
the magnetic brush. (--) dc
bias voltage is applied to
the cleaning roller and
scavenging roller. (+) dc is
applied to the PCC to
increase cleaning
efficiency.
Development unit
Employs a magnetic brush
system using 3 magnetic rollers.
For toner density control, toner
density and ID sensors are
used. Toner is replenished from
a cartridge.
Photoconductor
An OPC belt is used as the
photoconductor. Its image
producing area is equally divided
into 5 A4/B5 segments, 4 B4
segments, or 3 A3 segments,
according to the copy paper size.
OPC cleaning brush
Removes filming material from
the OPC surface and refreshes
OPC surface.
Eraser unit
Erase system
employs LEDs.
Charge corona unit
Scorotron system is employed
to give a uniform and constant
electric charge on the OPC.
(--) dc high voltage is applied
to a tungsten wire, and the
OPC is charged negatively by
corona discharge.
1 July 1994 Outline of Mechanism
1-7

1.5.2 Paper transport process
Simplex copy mode
In the simplex copy mode, copies are stacked on the
copy tray with the image side down as shown. In the
finishing modes, copies are inverted and stacked on the
shift tray in page order as shown by the dotted line.
Duplex copy mode
First side copying
For first-side copying in the duplex copy mode, paper is
stacked in the duplex tray.
Second side copying
For second-side copying in the duplex copy mode, the
shift tray ON mode is automatically selected. This is
because the copies fed from the duplex tray must be
reversed to keep the page order of the copies.
Therefore, the copies are not inverted by the inverter in
the finisher and are stacked on the shift tray with the first
side down.
If there is no finisher, paper is discharged to the sub-tray.
Outline of Mechanism 1 July 1994
1-8

1.5.3 Original transport process
SADF mode
In the SADF mode, the original is set with the image side
down and transported from right to left.
ADF and RDH modes
There are two copy modes: sort and stack. In the stack
mode copies of the same page are grouped together.
When this mode is selected with user tool [10], the
originals set in the stack original feed table of the RDH
are fed and copied then returned to the table just once
(ADF mode).
On the other hand, in the sort mode the copies are
assembled as sets in sequential order. This mode is
always selected when originals are set in the stack feed
table of the RDH, except when the stack mode is
selected. In this mode, the RDH performs the original
recirculating motion (RDH mode).
The following explains the differences in original and
copy paper motions when simplex or duplex copies are
made from the simplex or duplex originals in the sort and
stack modes.
ADF mode (stack mode)
Simplex original to simplex copy or duplex copy mode
In these modes, the original is set with the image side
down and transported as shown. The original is stopped
on the exposure glass for exposure.
Following exposure, the original is sent to the reversing
unit. In the reversing unit, the original switches back and
then returns with the image side down to the original
table.
Before the original feeding starts, the recycle arm is
placed on top of the original stack. The copied originals
are returned and stacked on the recycle arm. When all
originals are fed once, the recycle arm falls on the
bottom of the original table. The recycle arm is detected
by a sensor and the copier detects the end of the
original feeding cycle.
Recycle arm
1 July 1994 Outline of Mechanism
1-9

Duplex original to duplex copy or simplex copy mode
In these modes, the original is set with the image side
down on the original table and is transported as shown.
The original is stopped on the exposure glass and the
front side of the original is exposed first. After exposure,
the original is sent to the reversing unit where it is
switched back.
After the reversing unit, the junction gate pawls are
switched and guide the original to the intermediate
transport. The original is sent back to the exposure glass
again where the reverse side is exposed. After the
second exposure, the original is transported to and
through the reversing unit and is returned with the image
side down to the original table.
RDH mode (sort mode)
Simplex original to simplex copy mode
One original feeding cycle makes one set of copies. To
make more sets of copies, originals recirculate in the
RDH accordingly. (Copies are always collated into sets.)
The original motion in the RDH is just like the simplex
original to simplex copy or duplex copy mode with the
stack mode. However, when one original feeding cycle
is finished, the recycle arm is detected then is soon
placed on the top of the original stack. The next original
feeding cycle is continued without pausing the copy run.
When copy delivery to the finisher is selected, the copies
are inverted in the finisher in order to stack the copies
with the image side down on the shift tray. The copies
are stacked in page order.
When one original is set in the stack original feed table,
the original is recirculated once, as usual. Then, the
machine detects that only one original has been set. The
original is again fed from the table, then the machine
enters the original non-recirculating mode (ADF mode)
to complete copying. The original stays on the exposure
glass until the copy run finishes.
Junction gate
pawls
Intermediate transport
Outline of Mechanism 1 July 1994
1-10

Simplex originals to duplex copy mode
The original motion in the RDH is just like the simplex
original to simplex copy mode.
In case of the other RDH and finisher systems, usually
two cycles of the simplex original feeding makes one set
of duplex copies. The first cycle of the original feeding is
to make copies of the odd pages of originals. The copies
are stacked in the duplex tray. Then, for the second
original feeding, the even pages of originals are copied
onto the reverse sides of the copies from the duplex
tray. This motion is repeated until all the desired sets of
copies are completed.
For this copier, the alternate paper feeding system is
used to speed up the simplex to duplex copy job. The
first original feeding is just as for other RDH and finisher
systems. The odd pages of originals are copied and the
copies are stacked in the duplex tray. However, the
second original feeding and the following steps are
different.
Unlike the other RDH and finisher systems, from the
second original feeding, both the odd and even pages of
originals are copied in one original feeding cycle. (This
means that originals are copied in sequential order.) The
alternate paper feeding system allows this.
When an odd page of originals is copied, paper is fed
from the normal paper tray. The copy is stacked in the
duplex tray. (See the upper illustration.) When the next
original (an even page) is copied, the copy (made and
stacked in the duplex tray during the previous cycle of
the original feeding) is fed from the duplex tray. The
original image is copied onto the reverse side of the
copy then the copy is delivered. (See the lower
illustration.) The copier repeats feeding the paper from
the normal paper tray and from the duplex tray
alternately. This is called the alternate paper feeding.
For more details, refer to the "Alternate Paper Feeding
Timing Chart".
The copier repeats the above motion until the desired
sets of copies are completed. (During the final original
feeding cycle, only the even pages of originals are
copied and all the copies in the duplex tray are fed out.)
As a result, the copier can complete the copy job in the
same number of original feeding cycles as the desired
number of copies, plus one. On the other hand, in the
other RDH and finisher systems, the original feeding
cycle is repeated twice the desired number of copy sets.
The duplex copies are automatically delivered to the
finisher shift tray, not to the copier copy tray. The copies
are stacked in page order on the tray without the
inversion of copies unlike the simplex original to simplex
copy mode.
NOTE:
When the simplex originals to duplex copy mode is selected, if a
marginof15mm(5/8")ormoreisenteredinthemarginadjustment
mode,thecopyingspeedissetat61cpm,whateversizeoforiginal
or copy paper is used. Copies are made using the OPC segment
for A3 size copy. (The images of 3 originals are produced for one
rotation of the OPC belt.) If the difference in the selected margin
between the front and reverse side of the copy image is 15 mm
(5/8") or greater, e.g. 5 mm (2/8") margin at the left on the front
side and 10 mm (3/8") margin at the right on the reverse side, the
copying speed is also set at 61 cpm.
Copy paper motion for even originals
Copy paper motion for odd originals
1 July 1994 Outline of Mechanism
1-11

This is because the originals copied on the front and reverse side
are alternately copied due to the alternate paper feeding system.
As the margin can be adjusted by changing the original flash
(exposure) timing, the original stop on the exposure glass must
correspond to the adjusted flash timing. (If a margin is created at
the left, the flash timing is advanced. If a margin is created at the
right, it is delayed.) When the margin is created on the front and
rear of copies separately, two different flash timings alternate with
each other. If the difference in the flash timing between two
originalsbecomes greater,i.e.15mm (5/8")ormorein themargin,
the original transportation cannot correspond to the alternate two
different flash timings due to the limit of the original transportation
speed.
For example, if a margin is created at the left on the front side of
copies,afteran original for which nomarginiscreated,theoriginal
which has the margin must be transported to the exposure glass
faster than usual in order to catch up with the advanced flash
timing. If the margin is 15 mm (5/8") or greater, the original cannot
catch up with the advanced flash timing.
This copier has one more copying speed: 81 cpm. However, this
isnot used in caseof a slowdown in themargin adjustment mode.
To enable 81 cpm, the copy mode for B4 size paper (B4 size copy
mode), where the images of 4 originals are produced for one
rotation of the OPC belt, must be used. In the A4 size copy mode
three originals are fed into the RDH from the stack original feed
tray before the first original is flashed. For the B4 size copy mode,
it is two originals. Due to this, the original transport speed in the
B4 size copy mode is almost the same as that in the A4 size copy
mode, even though the copying speed of the B4 size copy mode
is 81 cpm. Therefore, even if A4 size copies are made using the
B4 size copy mode, there is not enough margin in the original
transportation speed.
Duplex original to duplex copy mode
The front side of originals is copied during one cycle of
original feeding. The copies are stacked in the duplex
tray. At the same time the originals are inverted and
returned onto the original table as the originals do not
switch back, unlike the simplex original to simplex copy
or duplex copy mode. Due to this, the reverse side of the
originals is copied during the next cycle of the original
feeding. The images are copied on the reverse side of
the copies from the duplex tray and the duplex copies
are automatically delivered to the finisher shift tray, not
to the copier copy tray. The copies are stacked in page
order on the tray without the inversion of copies as in the
simplex originals to duplex copy mode.
To make more sets of copies, the above motion is
repeated. (Copies are always collated into sets.) This
means that the original feeding cycle is repeated twice
the desired number of copy sets.
Outline of Mechanism 1 July 1994
1-12

Duplex original to simplex copies mode
One cycle of original feeding makes one set of copies.
For each original feeding, the front side image is copied
and the copy is stacked in the duplex tray. Then the
original is inverted in the RDH and the reverse side
image is copied onto the copy from the duplex tray. After
the images on both sides of the original are copied, the
original returns to the original table.
The original motion in the RDH is just like the duplex
original to duplex copy or simplex copy mode with the
stack mode.
To make more sets of copies, originals recirculate in the
RDH accordingly. (Copies are always collated into sets.)
When copy delivery to the finisher is selected, the copies
are inverted in the finisher in order to stack the copies
with the image side down on the shift tray. The copies
are stacked in page order.
Junction gate pawls
Intermediate transport
1 July 1994 Outline of Mechanism
1-13

1.5.4 Alternate paper feeding timing chart
*1 to *8 on the charts show the key points for understanding the alternate paper feeding. Refer to
the explanation below for each key point. The timing charts are based in the following copy mode
conditions:
Left One: Two sets of copies are made from 10 originals in the simplex original to duplex copy
mode.
Right One: A large number of copy sets are made from 20 originals in the simplex original to
duplex copy mode. The timing chart shows only part of the copy run.
*1:
"Original Feed Timing" shows when each original feed starts from the stack original feed table. The
numbers 1 to 10 identify the originals. The chart means that the 10 originals are recirculated three
times.
2 3 4 5 6 7
1 8 9 10 2 3 4 5 6 7
189 10 2 3 4 5 6 7
189 10
135 7 9135 7 9
135 7 9135 7 9
2 4 6 8 10 2 4 6 8 10
*5
*6 *7
Original
Feed Timing*1
Paper Feed Timing*2 Duplex Tray Entry Timing*3 Duplex Feed Timing *4 [10 Originals, 2 sets copy]
1st
2nd3rd
LCT
2 4 6 8 10
11
12 14 16 18 20 2 4 6 8 10 12 14
*8
Original Feed Timing Duplex Tray Entry Timing Duplex Feed Timing
[20 originals, a continuous copy run]
11 13 15 17 19 1 3 5 7 9 11 13 15 17 19
2 3 4 5 6 7
189 10 11 12 14 15 16 17 18 19 2013 2 3 4 5 6 7
189 10 11 12 14 1513
1 3 5
Outline of Mechanism 1 July 1994
1-14

*2:
"Paper Feed Timing" shows the timing when each paper is fed from the LCT. The numbers
correspond to the number of the original which will be copied on the front side of the paper.
The chart shows only odd number because the even numbered originals are copied on the reverse
side of the paper.
The paper feed start timing is different when paper is fed from the LCT, 1st tray, 2nd tray, and 3rd
tray. This is because paper transportation takes more time depending on where the paper feed
starts and where images are transferred to the paper. The time for the LCT is the longest and that
for the 3rd tray is the shortest. If the paper is fed from a station other than the LCT, the paper for the
first original starts being fed as shown in the dotted lines. The following paper feed intervals are the
same as that for the LCT.
*3:
"Duplex Tray Entry Timing" shows when the paper activates the duplex entrance junction sensor
and is delivered to the duplex tray. The number on top of each entry timing corresponds to the
number of the original which has been copied on the front side of the paper.
*4:
"Duplex Feed Timing" shows when the paper for each original is fed from the duplex tray. The
number on top of each duplex feed timing correspond to the number of the original which will be
copied on the reverse side of the paper.
As the timing chart shows, during the first original feed cycle only the odd numbered originals are
copied onto the paper fed from the paper tray. During the 2nd cycle the odd numbered originals are
copied as in the first cycle, and also even numbered originals are copied onto the paper fed from
the duplex tray. Copying for the front and reverse sides is done alternately in this period. (This is the
alternate paper feeding.) For the 3rd original feed cycle (i.e. the last original feed cycle) only the
even numbered originals are copied onto the paper from the duplex tray, completing the copy run
(two sets of five duplex copies are completed).
*5:
When the LCT is used the original to be copied starts being fed from the stack original feed table
and the paper for it starts being fed from the LCT right away.
During the first original feeding cycle, the 2nd original (and also the following even numbered
originals) is just fed and returned without being copied. During the 2nd cycle, all originals are
copied. Finally during the last original feed cycle, only the even numbered originals are copied.
*6:
The copy of the first original enters the duplex tray just after the 10th (last) original starts being fed
and before the first original starts being fed for the 2nd feed cycle. This duplex tray entry timing for
the first copy does not depend on the paper being fed from the LCT, first tray, 2nd tray, or 3rd tray.
This is because the time for the paper to enter the duplex tray after images are transferred to the
paper is constant no matter where paper is fed from.
Just after the 3rd paper has entered the duplex tray, the paper which first entered in the duplex tray
starts being fed from the duplex tray in order to match with the copying for the 2nd original during
the 2nd feeding cycle.
*7:
The 2nd copy of the first original enters the duplex tray just before the first original starts being fed
for the last original feed cycle. When this happens, the last copy in the duplex tray just starts being
fed. This means that
when the first copy made during the next original feed cycle enters the duplex tray and if the
number of originals is 10 or less (as in this case) then the duplex tray is empty even in the
alternate paper feeding motion.
*8:
The right timing chart shows simplex original to duplex copying using 20 originals. There are copies
remaining in the duplex tray (approximately 6 copies in this case) when the first copy made during
the next original feed cycle enters the duplex tray.
This chart also shows that the copy of the first original enters the duplex tray just after the 10th
original starts being fed, as in the left timing chart.
1 July 1994 Outline of Mechanism
1-15

1.5.5 Cover sheet and chaptering modes
Even in the duplex copy mode, the copy for the original
which is designated as the cover and slip sheets does
not enter the duplex tray. This is to enable the use of
copy paper up to 163 g/m2of paper weight. It is usually
up to 120 g/m2for duplex copies. Therefore, the cover
and slip sheets have images only on one side. Refer to
the following explanation for understanding how this is
done. (In the chaptering mode with the simplex originals
to duplex copies mode, if the copy for the designated
original to normal paper is selected, the copy will enter
the duplex tray and have images on both sides as usual.)
How the copies are collated into sets in the duplex
copy mode with the cover or chaptering mode
In the simplex originals to duplex copy mode, the original
next to the designated one is copied on the front of the
copy next to the cover or slip sheet, resulting in having
the reverse side of the cover and slip sheets blank. In
the duplex original to duplex copy mode, the reverse
side of the designated original is not copied, resulting in
having the reverse side of the cover and slip sheets
blank. (Therefore, the reverse side of the designated
original should be blank.)
In the simplex or duplex original to duplex copy mode,
the duplex copies are automatically delivered to the
finisher shift tray, not to the copier copy tray. The copies
are stacked in page order on the shift tray without being
inverted. (See the upper illustration.) However, as the
copy image on the cover and slip sheets is made while
the reverse side copies are made, in order not to enter
the cover and slip sheets into the duplex tray, only the
cover and slip sheets are inverted in the finisher to stack
all copies in page order. (See the lower illustration.)
Cover or slip sheet motion in duplex copy mode
Normal copy paper motion in duplex copy mode
Outline of Mechanism 1 July 1994
1-16

How the designated original is copied in the duplex
original to duplex copy mode
In the duplex original to duplex copy mode, although the
original designated with the cover or chaptering mode is
always copied on the front side of the cover or slip
sheet, it is copied during the second original feeding
cycle, not during the first one. This is because the cover
or slip sheet must enter the duplex tray if the designated
original is copied during the first original feeding cycle.
To allow this, the original recirculating motion in this
mode is different from that in the duplex original to
duplex copy mode without the cover or chaptering
mode, as follows:
1. During the 1st Original Feeding Cycle
The front side of the originals set in the RDH is
copied as usual. However, the designated original
is not copied during this cycle. Before the
designated original feeds out to the stack feed
table, it is not inverted. As a result, the front side
(image side) of the designated original only faces
the direction of the reverse side of the other
originals and stacked in the stack feed table.
2. During the 2nd and the Following Original
Feeding Cycle
During the 2nd cycle, the reverse side of the
originals is copied. The designated original is
copied during this cycle. The completed duplex
copies are delivered to the shift tray. As the copy
image on the cover or slip sheet is made while the
reverse side of the other originals is copied, only
the cover or slip sheet is inverted in the finisher to
stack all copies in page order.
For the following cycles, both sides of the originals,
including the designated original, are copied as
usual in the duplex original to duplex copy mode
until all the desired copy sets complete. Even
during this period, only the cover or slip sheet is
inverted in the finisher to stack all copies in page
order.
Designated original motion
Normal original motion
Total original motion
1 July 1994 Outline of Mechanism
1-17