Sharp AL-1043, Service Manual

Page: 87 / 126

AL-1551 SIMULATION, TROUBLE CODES 10-13
51 02 Resist quantity adjustment
Used to adjust the contact pressure of paper onto the copier resist roller and the RSPF resist roller.
(Operation/Procedure)
1. When this simulation is executed, the currently set value is displayed.
2. In a machine with the multi paper feed unit installed, press the copy mode select key, and each setting mode and display are changed
sequentially.
In a machine with the single paper feed unit installed, press the copy mode select key, and each setting mode and display are
changed sequentially.
*The selected adjustment mode is indicated by the lamps as listed below:
3. Enter the adjustment value with the 10-key and press the SORT key. Then the set value is stored and a copy is made.
4. Press the clear key to store the set value and exit the simulation.
06 SPF exposure correction
(Outline)
The SPF exposure correction amount is adjusted by adjusting the change in Vref voltage for the OC mode.
(Operation/Procedure)
1. When this simulation is executed, the currently set value is displayed.
2. Enter the adjustment value with the 10-key and press the start key. The entered value is stored and a copy is made.
Note:When the adjustment value is changed by 1, the D/A output is changed by +1 digit (dark) for OC exposure.
When it is changed by -1, the output is changed by -1 digit (light).
3. When the clear key is pressed, the entered value is stored and the simulation mode is terminated.
61 03 Polygon motor check (HSYNC output check)
(Operation/Procedure)
When the START key is pressed, HSYNC is performed and the polygon motor is rotated for 30 sec.
At that time, the Zoom lamp is lit for 100msec for every 3 times that the HSYNC is detected.
63 01 Shading check
(Outline)
Used to display the detection level of the white plate for shading. (Vref of AD conversion IC is fixed.)
(Operation/Procedure)
When the START key is pressed, the mirror base unit moves to the white plate for shading and Vref+ voltage of AD conversion IC is set
to 4.5V and Vref- voltage to 0.5V, and the copy lamp is lit.
This state is kept for 10 sec, and the level of one pixel at the center is detected every second to display on the value display section.
64 01 Self print only with the engine (1 by 2 mode)
(Outline)
Used to print in the 1 by 2 mode by ignoring the state of the optical system.
(Operation/Procedure)
1. When this simulation is executed, warming up is performed and the ready lamp is lit.
2. Select with the cassette select key and press the start key. Paper is fed from the selected cassette and printing is performed.
In the 1 by 2 mode, one line is printed and two lines are not printed.
Main
code Sub
code
Content
*Machine with the multi manual paper feed
Adjustment mode Display lamp
Main cassette paper feed AE, Main cassette lamp
2nd cassette paper feed AE, 2nd cassette lamp
Manual paper feed AE, Manual paper feed lamp
RSPF document feed (front) AE, TEXT, PHOTO lamp
RSPF document feed (back) AE, TEXT lamp
Duplex back TEXT, PHOTO lamp
*Machine with the single manual paper feed
Adjustment mode Display lamp
Main cassette paper feed AE, Main cassette lamp
Manual paper feed AE blinking (Main cassette lamp ON)
RSPF document feed (front) AE, TEXT, PHOTO lamp
RSPF document feed (back) AE, TEXT lamp
Duplex back TEXT, PHOTO lamp
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