Canon BJC6500 Service Manual - Page 40

Part 2: MAINTENANCE BJC-6500 2.4.2 When to perform print head position adjustment As there are two BJ cartridges installed in this printer, even a slight difference in size or seating position between them may result in inaccurate dot placement, and thereby poor printing. To correct this, after installing the BJ cartridges, perform the automatic print head position adjustment, one of the utilities the printer driver package provides. If a computer is not available, you can still perform the print head position adjustment in service mode. For the procedures, refer to Part 3: 2.1 Service Mode Operations (Page 3-8). Set at least one sheet of B5 (or larger) plain paper in the ASF, and select the print head position alignment pattern in the test print area of the printer driver's Utility sheet. LED calibration 360-dpi vertical alignment adjustment 360-dpi bi-directional rough adjustment 360-dpi bi-directional fine adjustment 180-dpi bi-directional rough adjustment 180-dpi bi-directional fine adjustment 360-dpi horizontal alignment forward rough adjustment 360-dpi horizontal alignment forward fine adjustment 360-dpi horizontal alignment reverse rough adjustment 360-dpi horizontal alignment reverse fine adjustment 180-dpi horizontal alignment forward rough adjustment 180-dpi horizontal alignment forward fine adjustment 180-dpi horizontal alignment reverse rough adjustment 180-dpi horizontal alignment reverse fine adjustment 720-dpi horizontal alignment forward rough adjustment 720-dpi horizontal alignment forward fine adjustment 1440-dpi horizontal alignment forward rough adjustment 1440-dpi horizontal alignment forward fine adjustment Printing position check pattern Figure 2-12 Print Position Adjustment Pattern CAUTION When printing the print head position adjustment pattern, do not use paper smaller than B5-sized paper. Use paper of B5 size or larger for the nozzle check pattern printing. If you use smaller paper, the platen may be smeared with ink. 2-12