Sharp AL2020 Service Manual

AL-2020/2035/2040/2050/2060 OPERATIONAL DESCRIPTIONS 7 - 8
B. Document transport path and basic
composition
AL-2035/2040
AL-2050/2060
C. Operational descriptions
AL-2035/2040
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.)
1 Pickup roller 2 Sheet of document for paper feed
3 Set detection ACT 4 Document feed roller
5 Separation sheet 6 Paper entry sensor
7 PS roller D 8 Transport follower roller
9 Paper exit roller 10 Paper exit follower roller
11 Document tray
1 Pickup roller 2 Separation roller
3 Paper empty sensor 4 Upper transport roller
5 Paper sensor 6 PS roller
7 Lower transport roller 8 Reverse self-weight gate
9 Paper exit sensor 10 Paper exit roller
11
19 3 4
5
210 6 7
8
1
2
45
6
8
10
7
3
9
SPID ON
PSW ON
MRMT rotation
MM rotation
CPFS ON
SPFM rotation
Document set
Document set sensor
Document feed unit lamp ON
PPD ON
RRC ON
SPPD ON
POD ON
Copy start
The scanner is shifted
to the exposure position.
(Copier side)
Main motor rotation
Paper feed
Synchronization
(Transfer)
(Fusing)
(Document exit)
Paper transport
(Exposure)
In the zooming mode, the magnification ratio in the sub
scanning direction (paper transport direction) is adjusted
by changing the document transport speed.
(Paper exit)
SPF motor rotation
Document transport sensor
Document transport
(SPF side)
PSW
MRMT
SPF M
CL
SPPD
260ms 182ms
SCANST
MAIN M
CPFS1
RRS
PPD1
PPD2
POD

Sharp AL2020 Specifications

General

Brand	Sharp
Model	AL2020
Category	All in One Printer
Language	English