Brother International HL-2400C Service Manual - Page 160

3.4 Adjustment Work Procedures 3.4.1 Adjustment of Top and Left Margin The top and left margins can be adjusted by button operation on the control panel. If there is no top margin or left margin set for the print guarantee area or when the MCTL PCB is replaced, the adjustment of top and left margin will be required. 1) Execute "GRID PRINT" in Service Mode. 2) Measure the position 'A' and 'B' of top margin. [Leading edge] (A + B) / 2 ≤ Specification Value 4.5 ± 1.5mm 3) Measure the position 'C' and 'D' of left margin. [Left edge] (C + D) / 2 ≤ Specification Value 3.5 ± 1.5mm 4) If the specification value is not met, implement the adjustment. i) Execute "43 MARGIN ADJUST" in the FACTORY MODE. 5) After adjustment execute "GRID PRINT" and confirm the margins. Leading edge A B Left Margin C D Print Guarantee Area Feeding Direction Fig.5-2 V-39