Rspf Section; Outline; Document Transport Path And Basic Composition; Operational Descriptions - Sharp AL-2051 Service Manual

7. RSPF section

A. Outline
The RSPF is installed.
It automatically copies up to 50 sheets of documents of a same
size. (Only one set of copies)
B. Document transport path and basic
composition
1 Pickup roller
3 Paper empty sensor
5 Paper sensor
7 Lower transport roller
9 Paper exit sensor
PSW
MRMT
SPF M
CL
SPUS
SPPD
SCANST
SRVC
SRJD
MAIN M
CPFS1
RRS
PPD1
PPD2
POD
RSPF JAM generation condition
1) The SPPD is ON when turning ON the power.
2) The SPPD does not turn ON for 4.0sec from starting document
feed. (in 100% copy)
3) The SPPD does not turn OFF for 4.7sec after detecting turning
ON of the SPPD. (100% copy)
4) The RSPF cover or the OC cover is opened during document
transportation.
5) The SRJD is ON when the power is turned ON.
6) The SRJD is not turned ON for 2.4sec from release of PS in
paper feed from the document set position. (100% copy)
7) The SRJD is not turned OFF for 1.6sec from completion of doc-
ument scan in the case of complete document exit. (100%
copy)
1 2 3 4 5
10 9 8 7 6
2 Separation roller
4 Upper transport roller
6 PS roller
8 Reverse self-weight gate
10 Paper exit roller
1200msec
AL-2051 OPERATIONAL DESCRIPTIONS 7 - 8
C. Operational descriptions
Document set
SPID ON
Document feed unit lamp ON
PSW ON
MRMT rotation
(Copier side)
MM rotation
Main motor rotation
Paper feed
CPFS ON
PPD ON
Synchronization
RRC ON
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.
560msec
Document set sensor
Copy start
The scanner is shifted
to the exposure position.
(RSPF side)
SPF motor rotation
SPFM rotation
Document transport sensor
SPPD ON
Document transport
(Exposure)
(Document exit)