Canon MF6530 Service Manual - Page 163
Preparing a Test Sheet for Adjustment
UPC - 013803056037
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11.4 ADF 11.4.1 Outline 11.4.1.1 Outline 0011-7337 This machine has the following adjustment items. Make the necessary adjustments after replacing each part. T-11-1 No. Adjustment type Replaced parts [1] Perpendicularity adjustment Hinge [2] Magnification adjustment Motor/roller [3] Side registration adjustment - [4] Leading edge registration - adjustment 11.4.1.2 Preparing a Test Sheet for Adjustment 0011-7338 Preparing a Test Sheet: On a sheet of A4 or LTR paper, draw straight lines as indicated: 297mm 10mm 10mm (feeding direction) 10mm 210mm 10mm 10mm Draw straight lines. F-11-5 279mm 10mm 10mm (feeding direction) 10mm 216mm 10mm 10mm Draw straight lines. F-11-6 11.4.2 Adjusting the Mechanical System 11.4.2.1 Adjusting the Perpendicularity 0011-7339 1) reate a test chart, load it in the ADF, and make a copy of it. 2) Compare the lines at the end of the test chart with those on the copy for perpendicularity. Measure dimensions A and B at the end of the copy and adjust the amount of skew (the range shown in the table) to within the spec. T-11-2 Dimension (using A4) A-B 0 +/- 1.5 mm Dimension (using LTR) 0 +/- 1.5 mm A (feeding direction) B Copy of the test sheet F-11-7 3) Loosen the two screws [1] securing the right hinge and slide the hinge according to the sale markings so that the perpendicularity is within spec. Chapter 11 [1] F-11-8 4) Tighten the screws you loosened in step 3. 11.4.3 Adjusting the Electrical System 11.4.3.1 Adjusting the Magnification 0011-7340 1) Create a test chart, load it in the ADF, and make a copy of it. This copy is called copy A. 2) Compare the longitudinal image length on the test chart with that on copy A. If required, make an adjustment in the service mode. (A4-size paper: 277 +/-1mm LTR paper: 59 +/-1mm) Image on copy A is shorter. -> Increase the value (or reduce the stream reading speed). Image on copy A is longer. -> Decrease the value (or increase the stream reading speed). 3) Enter the service mode. Sequentially press the additional functions key, 2 key, 8 key, and additional functions key on the operation panel of the host machine. 4) Using the arrow keys on the operation panel, display "#SCAN". 5) Press the OK key. 6) Using the arrow keys on the operation panel, display "#SCAN NUMERIC". 7) Press the OK key. 8) Using the arrow keys, select "48". 9) Using the numeric keys, change the value to determine the optimum value. Next, press the OK key. (Default: 32) Do not change the adjustment value excessively. 11.4.3.2 Adjusting the Horizontal Registration 0011-7341 1) Load the test chart in the ADF and make a copy of it. 2) Compare the horizontal registration of the chart with that of the copy. If required, make an adjustment. The specified horizontal registration is 10mm +/-2mm. 11-3