Konica Minolta bizhub 160 Service Manual - Page 334
Adf Sub Regist
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DF-501 Field Service Ver. 1.0 Apr. 2005 5.2.3 ADF SUB REGIST 5. Service Mode Functions • To adjust for variations in the accuracy of all parts and their mounting accuracy by varying the scanning start position in the sub-scanning direction when using the Automatic Document Feeder. Use • After the PRN MAIN REGIST and PRN SUB REGIST and CCD SUB ZOOM adjust- ments have been performed • After the ADF SUB ZOOM adjustments have been performed • When the Upper Cover Assy. (Original Glass) has been replaced • When the ADF has been replaced Adjustment Specification • After finishing the ADF SUB ZOOM adjustments. • Adjust the width of C in the printed test pattern so that the following specification is met. Specifications 20 ± 3.0 mm Adjustment Instruction Adjustment Procedure 4007D051AA Setting Range 90 to 110 (1 increment = 0.5 mm) The default setting is "100" If the width of C in the test pattern is longer than the specified width ..... Increase the setting. If the width of C in the test pattern is shorter than the specified width ..... Decrease the setting. 1. Print the test pattern. 2. Enter the "ADJUST" menu in the Service mode. 3. Load the test pattern into the Automatic Document Feeder and make a test copy. NOTE • The test pattern should be positioned vertically. • Use A4 or Letter paper loaded into Tray 1 to make the test copy. 4. Check that the width of F in copy of the test pattern meets the specification. If the width of F is out of specification, adjust it according to the following procedure. 5. Change the setting. If the shift cannot be adjusted to within the specification with a single adjustment, perform the adjustment again to change the setting. 6. Press the Yes key to apply the setting. NOTE • If the Stop key is pressed, instead of the Yes key, the main screen is displayed and the setting returns to that before it was changed. • Load the test pattern into the Automatic Document Feeder again, make another test copy, and check it. Adjustment / Setting 15