8 ] Replacement Parts And Maintenance - Sharp SF-A57 Service Manual

[8] REPLACEMENT PARTS AND
MAINTENANCE
1. Replacement parts
Part name
Separation roller
Transport belt
2. Maintenance parts (Cleaning at every
10K copies)
Clean the parts shown in the table below at maintenance as specified
in the table.
Part name
Original set sensor (DSS)
Original feed sensor (DFD)
Original timing sensor (DTD)
Original width sensor (DWS)
Paper exit sensor (DES)
Reverse sensor (RDD)
Paper feed roller
Semi-circular roller
Resist roller
Paper exit roller
Reverse roller
3. DIP switch
The DIP switch on the control PWB shown below allows the individual
operation check of the RADF (ADF).
(1) Control PWB outline
DRIVER FOR MOTOR
DIP SW
CPU
(2) DIP switch outline
OFF
ON
SW No.1 2
1. Entering the test mode:
While pressing the push switch on the control PWB, supply the
power, and the machine will enter the test mode.
Replacement timing
100K copies
100K copies
Cleaning method
Air blow
Air blow
Air blow
Air blow
Air blow
Air blow
Wipe with alcohol.
Wipe with alcohol.
Wipe with alcohol.
Wipe with alcohol.
Wipe with alcohol.
DRIVER FOR MOTOR
Push SW
EEPROM
G/A
3 4 5
2. Mode setting in the test mode when supplying the power
Switch
Push switch RADF individual unit
operation test mode
DIP switch 1 For AB series
DIP switch 2 Thin paper mode
3. Kinds of test modes and DIP switch setting
No. Test mode
1 Single paper pass mode
2 Duplex paper pass mode
3 Single aging mode
4 Duplex aging mode
5 Single paper pass mode
(Thin paper mode)
6 Duplex paper pass mode
(Thin paper mode)
7 Load check mode
8 EEPROM initializing mode
+ all sensors adjustment
mode
10 Resist sensor adjustment
mode
11 Timing sensor adjustment
mode
12 Paper reverse sensor
adjustment mode
* "5" and "6" are for thin paper mode (only in Japan).
4. Details of the test modes
Set the DIP switch on the control PWB, and open/close the DF to set
the test mode.
Setting of the original size series (AB/Inch) and of normal/thin paper
mode should be performed only when supplying the power.
(1) Single paper pass mode (paper present)
When originals are set on the paper feed tray, the original feed LED
lights up. When the push switch is pressed, all the originals on the
tray are fed.
(2) Duplex paper pass mode (paper present)
When originals are set on the paper feed tray, the original feed LED
lights up. When the push switch is pressed, all the originals on the
tray are fed.
(3) Single aging mode (without paper)
When the push switch is pressed, aging is started. The operation
timing is determined by size detection of each original size.
(4) Duplex aging mode (without paper)
When the push switch is pressed, aging is started. The operation
timing is determined by size detection of each original size.
(5) Thin paper single paper pass mode
When originals are set on the paper feed tray, the original feed LED
lights up. When the push switch is pressed, all the originals on the
tray are fed.
– 21 –
ON OFF
PPC main body
connection mode
For inch series
Normal paper mode
DIP switch
All OFF
1 is ON, all the others
OFF
1 and 3 ON; 2, 4, and 5
OFF
4 ON, all the others OFF
3, 4 ON; 2, 5 OFF
1, 3, 4 ON; 2, 5 OFF
1, 5 ON; 2, 3, 4 OFF
3, 5 ON; 1, 2, 4 OFF
4, 5 ON; 1, 2, 3 OFF
1, 4, 5 ON; 2, 3 OFF
3, 4, 5 ON; 1, 2 OFF