Document Transport Path And Basic Composition; Operational Descriptions - Sharp AL-2020 Service Manual

B. Document transport path and basic
composition
AL-2035/2040
11
1 Pickup roller 2
3 Set detection ACT 4
5 Separation sheet 6
7 PS roller D 8
9 Paper exit roller 10
11 Document tray
AL-2050/2060
1 Pickup roller
3 Paper empty sensor
5 Paper sensor
7 Lower transport roller
9 Paper exit sensor
AL-2035/2040
PSW
MRMT
SPF M
CL
SPPD
SCANST
MAIN M
CPFS1
RRS
PPD1
PPD2
POD
SPF JAM generation condition
1) When SPPD is ON (document remaining) in initializing
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 OFF within about 4.7 sec (at 100%
copy) after turning on SPPD.
4) When the OC cover is opened during document transport (dur-
ing SPF motor rotation) (The SPF motor is stopped during doc-
ument transport, but the OC cover open error occurs instead of
the SPF JAM.)
9 1 3 4
10 2 6 7
Sheet of document for paper feed
Document feed roller
Paper entry sensor
Transport follower roller
Paper exit follower roller
1 2 3
10 7
9 8 6
2 Separation roller
4 Upper transport roller
6 PS roller
8 Reverse self-weight gate
10 Paper exit roller
260ms
AL-2020/2035/2040/2050/2060 OPERATIONAL DESCRIPTIONS 7 - 8
C. Operational descriptions
Document feed unit lamp ON
5
8
(Copier side)
MM rotation
Main motor rotation
Paper feed
CPFS ON
PPD ON
RRC ON
Paper transport
(Transfer)
4 5
(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.
182ms
Document set
SPID ON Document set sensor
PSW ON Copy start
The scanner is shifted
MRMT rotation to the exposure position.
(SPF side)
SPFM rotation SPF motor rotation
Document transport sensor
Synchronization SPPD ON
Document transport
(Exposure)
(Document exit)