Sharp AL-2020 Service Manual page 93

Main Sub
Contents
code code
1 02 Mirror home position sensor
(MHPS) status display
06 Aging of mirror scanning
2 01 SPF/RSPF aging operation
(excluding AL-2020)
02 SPF/RSPF sensor status
display (excluding AL-2020)
03 SPF/RSPF Motor ON
(excluding AL-2020)
06 Resist clutch ON (SPF)
(AL-2035/2040)
08 RSPF paper feed solenoid
operation check
(AL-2050/2060)
[Function]
Monitors the mirror home position sensor, and makes the "Drum replacement required lamp (or
the copy mode indicator for the AL-2050/2060)" turn on during the sensor ON status.
[Operation] (AL-2050/2060)
1) Initial display
01-02 MHP-SENSOR
EXECUTING...
[Function]
When [OK]/[START] key is pressed, the mirror base performs full scan at the speed of the set
magnification ratio.
During operation, the set magnification ratio is displayed.
After 3sec, the mirror base performs full scan again.
∗ When [OK]/[START] key is pressed once, the ready lamp remains OFF.
The mirror home position sensor status is displayed on the "Drum replacement required lamp
(or the copy mode indicator for the AL-2050/2060)." (The lamp is ON when the mirror is in the
home position.)
During aging, the copy lamp is ON.
[Operation] (AL-2050/2060)
The operation is similar to simulation 1-01.
[Function]
When [OK]/[START] key is pressed, the set magnification ratio is obtained. For the SPF, the sin-
gle-face document transport is performed. For the RSPF, the duplex document transport is per-
formed.
However, the operating conditions don't matter and the operation is not stopped even in case of
a jam. Also the magnification ratio is displayed on the LCD/display.
[Operation] (AL-2050/2060)
The operation is similar to simulation 1-01.
[Function]
The ON/OFF status of the SPF/RSPF sensors can be checked with the LCD/LED.
When a sensor is ON, the sensor name is displayed on the LCD/LED.
Sensor
Document set sensor
RSPF document transport sensor
RSPF paper feed cover open/
close sensor
RSPF paper exit sensor
[Operation] (AL-2050/2060)
1) Initial display
02-02 SPF SENSOR
[Function]
When [OK]/[START] key is pressed, the motor rotates for 10sec at the speed corresponding to
the set magnification ratio.
[Operation] (AL-2050/2060)
The operation is similar to simulation 1-01.
When the [START] key is pressed, the SPF resist clutch (SRRC) repeats ON (500 ms) and OFF
(500 ms) 20 times.
[Function]
The RSPF paper feed solenoid (SPUS) repeats ON for 500ms and OFF for 500ms 20 times by
the use of the solenoid drive control Bios.
[Operation] (AL-2050/2060)
1) Initial display
02-08 SPF SPUS CHK
EXECUTING...
AL-2020/2035/2040/2050/2060 SIMULATION, TROUBLE CODES 10 - 3
Details of function/operation
Display item
(AL-2050/2060)
SPID TD cartridge replacement required
lamp
SPPD Misfeed lamp
SDSW
SPOD
2) When the sensor is ON:
02-02 SPF SENSOR
SPID SPPD SDSW SPOD
Display item
(AL-2035/2040)
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