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(3) Conditions of occurrence of paper misfeed
a. When the power is turned on:
PPD or POD is ON when the power is turned on.
b. Copy operation
a PPD1 jam
PPD1 does not turn off within 4 sec after turning
on the resist roller.
b PPD2 jam
PPD2 is off immediately after turning on the
resist roller.
PPD2 does not turn off within 1.2 sec after
turning off the resist roller.
c
POD jam
POD does not turn on within 2.9 sec after turning
on the resist roller.
POD does not turn off within 1.5 sec - 2.7 sec
after turning off PPD2.
6. SPF/RSPF section
A. Outline
The RSPF (Reverse Single Path Feeder) is installed to the AR-168D
and the SPF (single path feeder) is installed to the AR-168S as a stan-
dard provision, and it automatically copies up to 30 sheets of docu-
ments of a same size. (Only one set of copies)
B. Document transport path and basic composition
(RSPF)
12
(SPF)
12
1 Pickup roller
3 Set detection ACT
5 Document feed roller
7 Paper entry sensor
9 Transport follower roller
11 Paper exit follower roller 12 Document tray
13 Switch gate (RSPF)
5 6 7
3
1 4
13 10
11
2
8 9
3
1
2
4 5
10
11
2 Sheet of document for paper feed
4 Paper stopper
6 Separation sheet
8 PS roller D
10 Paper exit roller
AR-168S/168D OPERATIONAL DESCRIPTIONS 7 - 7
C. Operational descriptions
Time chart (Tray feed)
Document feed unit lamp ON
(Copier side)
MM rotation
Main motor rotation
CPFS ON
Paper feed
PPD ON
RRC ON
Synchronization
Paper transport
(Transfer)
(Fusing)
POD ON
(Paper exit)
In the zooming mode, the magnification ratio in the sub
scanning direction (paper transport direction) is adjusted
by changing the document transport speed.
PSW
MIRR M
SPF M
CL
SPUS
SPPD
SCANST
MAIN M
CPFS1
RRS
6
PPD1
PPD2
POD
7
D. Cases where a document jam is caused
8
9
1) When SPPD is ON (document remaining) when the power is
turned on.
2) When SPPD is not turned ON within about 1.5 sec (at 100% copy)
after starting the document feed operation.
3) When SPPD is not turned on within about 4.7 sec (at 100% copy)
after turning on SPPD.
4) When the SPF document jam release door or the OC cover is
opened during document transport (SPF motor rotating).
E. RSPF (SPF) open/close detection (book
document detection)
RSPF (SPF) open/close detection (book document) detection is per-
formed by detecting the interval between the reference lines on the
white Mylar attached to the paper exit guide (document scanning sec-
tion) by the scanner (CCD) and detecting the varied quantity.
B
A
Reference line
(CCD)
Document set
SPID ON
Document set sensor
Copy start
PSW ON
The scanner is shifted
MIRM rotation
to the exposure position.
(SPF side)
SPFM rotation
SPF motor rotation
SPUS ON
Document feed
Document transport sensor
SPPD ON
Document transport
(Exposure)
(Document exit)
625msec
756msec
752msec
(Floating)
(White Mylar)
Reference line
B
A - B = Varied quantity of pixels
(pixel)
A
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