Read Sharp AL-800 (serv.man7) Service Manual online
(3) Details of simulations
1
1 - 1
Purpose
Operation test/check
Function
(Purpose)
(Purpose)
Used to check the operation of the scanner (reading) unit and its control circuit.
Section
Optical (Image scanning)
Item
Operation
Operation/
Procedure
Procedure
Set the copy magnification ratio to any desired level and press the start button. The scanner scans (reads) once
at the scanning speed corresponding to the set copy magnification ratio.
At that time, the operation of the scanner home position sensor (MHPS) can be checked wit the photoconductor
lamp.
When the scanner is at the home position, that is, when the scanner home position sensor (MHPS) detects the
scanner, the photoconductor lamp lights up.
at the scanning speed corresponding to the set copy magnification ratio.
At that time, the operation of the scanner home position sensor (MHPS) can be checked wit the photoconductor
lamp.
When the scanner is at the home position, that is, when the scanner home position sensor (MHPS) detects the
scanner, the photoconductor lamp lights up.
Note
5
5 - 1
Purpose
Operation test/check
Function
(Purpose)
(Purpose)
Used to check the operation of the operation panel display lamps and the control circuit.
Section
Operation (Display/Operation key)
Item
Operation
Operation/
Procedure
Procedure
All the lamps and value displays on the operation panel are lighted for 5 sec.
Note
5 - 2
Purpose
Operation test/check
Function
(Purpose)
(Purpose)
Used to check the operation of the heater lamp and its control circuit. Used to check the operation of the fan
motor and its control circuit.
motor and its control circuit.
Section
Fixing (Fusing)
Item
Operation
Operation/
Procedure
Procedure
The heater lamp repeat ON for 500msec and OFF for 500msec each 5 times.
During this time, the fan motor rotates.
During this time, the fan motor rotates.
Note
5 - 3
Purpose
Operation test/check
Function
(Purpose)
(Purpose)
Used to check the operation of the copy lamp and its control circuit.
Section
Optical (Image scanning)
Item
Operation
Operation/
Procedure
Procedure
The copy lamp is lighted for 5 sec.
Note
8 – 10
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