Kodak 800 SERIES service manual To perform the Slow Deadband Alignment

NovaJet 800 Series Service Manual

Figure 3-22. Slow Deadband.

Figure 3-22 shows what the display will look like when printing the slow deadband test if it is out of alignment. A correctly aligned printer will appear as if there is only a series of vertical lines printed. No difference between the top and bottom set of lines to the center set of lines would be appearant.

The SLOW DEADBAND calibration is a precision test that checks the firing time of the jets as related to the forward and reverse direction.

Allowable values for the Slow Deadband calibration is -2, -1, 0, 1 and 2.

The Single Line Test and All Line Test are variations of the deadband test except they print longer lines so that long time integration of the deadband calibration can be observed. The Single Line Test prints only one line at a time while the All Line Test prints all lines at the same time. These tests were designed primarily to be used in manufactoring only.

The deadband test on a NovaJet 850 will print a display similiar to Figure 3-22 but will print the pattern for each of the eight cartridges. This is just a visual check of the color deadband alignment. No adjustments can be made for this test at this control panel page. To make adjustments, if needed, see the Color Deadband Alignment section.

Allowable values for the Color Deadband Alignments on this printer is from 0 to 120 but the actual value used by the printer will only accept certain numbers. The real value used by the printer will be the closest of 12, 20, 28, 36, 44, 52, 60, 68, 76, 84, 92 or 100.

To perform the Slow Deadband Alignment:

1.Select “Utility Menu” from the Main Menu. This brings up the Utility Menu as shown in Figure 3-19.

2.Select the “Service Menu” from the Utility Menu. This brings up the Service Menu as shown in Figure 3-23.

MAINTENANCE

Maintenance 3-35