Technical Bulletin No. RTB-005
SUBJECT: Finisher Version Information DATE: July 15, ’93
PAGE: 1 of 23
PREPARED BY: H. Kokubo
CHECKED BY:
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Revision of service manual
Information only
Other
FROM: Copier Technical Support Section
MODEL: F5
(Gestetner 25101/
Nashuatec 53101)
TABLE OF CONTENTS
1. UNIQUE FUNCTIONS OF THE FINISHER
VERSION MODEL 3
2. FUNCTIONAL DETAILS 3
2.1 COPY MODE 3
1. Simplex original to simplex copy mode ........................................ 4
2. Simplex originals to duplex copy mode ........................................ 4
3. Duplex original to duplex copy mode .......................................... 6
4. Duplex original to simplex copies mode ...................................... 6
2.2 ALTERNATE PAPER FEEDING TIMING CHART 7
2.3 ACCOUNTING MODES 10
1. How to e nter the c opy mod e .......... ........ .......... ........ ........ ........ ... 10
2. How to leave the copy mode in the accounting mode ................. 10
3. How to set the accounting modes ................................................. 10
4. How to enter the copy mode in the accounting mode
for servicing .................................................................................. 10
Technical Bulletin No. RTB-005
SUBJECT: Finisher Version Information DATE: July 15, ’93
PAGE: 2 of 23
TABLE OF CONTENTS
2.4 COVER SHEET AND CHAPTERING MODES 11
1. How the copies are collated into sets in the duplex
copy mode with the cover or chaptering mode ............................ 11
2. How the designated original is copied in the duplex
original to duplex copy mode ........................................................ 12
2.5 DIFFERENCES IN MECHANISM BETWEEN
THE ADF AND RDH 13
1. Recycle arm solenoid .................................................................... 13
2. Original transport drive motor ........................................................ 13
3. Instruction decal ............................................................................. 13
3. NEW SELF-DIAGNOSTICS FOR THE FINISHER 14
4. MAIN CONTROL BOARD DIP SWITCH SETTING 15
5. MEAN POWER CONSUMPTION DATA 16
6. USER TOOLS 17
1. User tools unique for the finisher version ..................................... 17
2. User utility table (user tool no. 10) ................................................ 18
7. SERVICE TOOLS 19
1. Service tools unique for the finisher version ................................. 19
2. Utility modes unique for the finisher version ................................. 21
3. Utility mode comparison table of the sorter,
sorter/stapler, and finisher ............................................................ 22
.
Technical Bulletin No. RTB-005
SUBJECT: Finisher Version Information DATE: July 15, ’93
PAGE: 3 of 23
1. UNIQUE FUNCTIONS OF THE FINISHER VERSION MODEL
The major differences between the sorter version and finisher version of the F5 are
as follows:
1. Permits the installation of the optional finisher (with the original recirculating
motion of the RDH).
2. Permits the installation of the optional key counter bracket and printer connector
unit.
3. New or modified user and service tools.
4. Advanced cover and chaptering modes.
5. Enables the use of the normal accounting mode and of the security accounting
mode.
6. Satisfies the German electromagnetic field interference standard (VDE 243).
2. FUNCTIONAL DETAILS
2.1 COPY 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 number 10,
the originals set in the stack original feed table of the RDH are copied just like with
the sorter or sorter/stapler version machine. The originals are fed and 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
mode:
Technical Bulletin No. RTB-005
SUBJECT: Finisher Version Information DATE: July 15, ’93
PAGE: 4 of 23
1. 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.)
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.
2. Simplex originals to duplex 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 like the 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 the odd page of originals is copied, paper is fed from the normal paper tray.
The copy is stacked in the duplex tray. When the next original (the even page of
originals) is copied, the copy, which was 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. 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.
Technical Bulletin No. RTB-005
SUBJECT: Finisher Version Information DATE: July 15, ’93
PAGE: 5 of 23
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 margin of 15 mm
or more is entered in the margin adjustment mode, the copying speed is set at 61
cpm, whatever size of original 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 or greater, e.g. 5 mm margin at the
left on the front side and 10 mm margin at the right on the reverse side, the
copying speed is also set at 61 cpm.
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 (exposing) 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 originals becomes greater, i.e. 15 mm or more in the margin, 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, after an
original for which no margin is created, the original 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 or greater, the original cannot catch
up with the advanced flash timing.
This copier has one more copying speed: 81 cpm. However, this is not used in
case of a slow down in the margin 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.
Technical Bulletin No. RTB-005
SUBJECT: Finisher Version Information DATE: July 15, ’93
PAGE: 6 of 23
3. Duplex original to duplex copies 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. 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.
4. 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. 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.
Technical Bulletin No. RTB-005
SUBJECT: Finisher Version Information DATE: July 15, ’93
PAGE: 7 of 23
2.2 ALTERNATE PAPER FEEDING TIMING CHART
Technical Bulletin No. RTB-005
SUBJECT: Finisher Version Information DATE: July 15, ’93
PAGE: 8 of 23
*1 to *8 on the charts in the previous page 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:
Upper One: Two sets of copies are made from 10 originals in the simplex original
to duplex copy mode.
Lower 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 Feeding 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: "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).
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