Sharp AL-1000 Service Manual

Also see for AL-1000 Series: Operation manual Operation manual Operation manual Operation manual

Contents

2) Set the copy magnification ratio to 100%.3) Make a copy on A4 or 81⁄2″ × 11″ paper.4) Measure the length of the copied scale image.5) Calculate the main scanning direction magnification ratio.Main scanning direction magnification ratio= Copy image dimensionsOriginal dimension × 100 (%)100 110 120 130 150140mm1/2mmJAPANHARDDENCDSTAINLESSShizuoka100 110 120 130 150140mm1/2mmJAPANHARDDENCDSTAINLESSShizuoka11010 2010 20(When a 100mm scale is used as the original.)Paper feeddirectionReference Comparison pointOriginal (Scale)Copy6) Check that the copy magnification ratio is within thespecified range. If it is not within the specified range, per-form the following procedures.7) Execute SIM 48-1 to select the main scanning directioncopy magnification ratio adjustment mode.To select the adjustment mode, use the copy modeselect key.In the case of the automatic adjustment, when the PRINTswitch is pressed, the mirror base unit moves to the whiteplate for shading to scan the width of the reference line, cal-culating the correction value and displaying and storing thisvalue.After execution of the automatic adjustment, go out from thesimulation mode and make a copy to check the magnifica-tion ratio.If the magnification ratio is not in the specified range (100±1.0%), manually adjust as follows.Adjustment mode Lighting lampMain scanning direction autocopy magnification ratioadjustmentAuto exposure lampONMain scanning directionmanual copy magnificationratio adjustmentManual exposurelamp ONSub scanning direction copymagnification ratio adjustmentPhoto exposurelamp ON8) Set the adjustment mode to Manual with the copy modeselect key.9) Enter the new set value of main scanning direction copymagnification ratio with the copy quantity set key, andpress the COPY button.10) Change the set value and repeat the adjustment untilthe ratio is within the speoified range.When the set value is changed by 1, the magnificationration is changed by 0.1%.c. Sub scanning direction copy magnification ratioI. NoteBefore performing this adjustment, the following adjustmentsmust have been completed. If not, this adjustment cannot beperformed properly.l Image distortion adjustmentl Must be installed to the lens unit reference position.II. Cases when the adjustment is required1) When the lens and the mirror unit are disassembled orthe part is replaced.2) When the scanner unit drive section is disassembled orthe part is replaced.3) When the main PWB is replaced.4) When the EEPROM in the main PWB is replaced.5) When “U2” trouble occurs.6) When the copy image distortion adjustment is performed.III. Necessary toolsl Screwdriver (+)l ScaleIV. Adjustment procedure1) Set the scale on the document table as shown below.(Use a long scale for precise adjustment.)2) Set the copy magnification ratio to 100%.3) Make a copy on A4 or 81⁄2″ × 11″ paper.AL-1000/10109-5