Kodak 800 SERIES service manual Excessive Ink PreHeat Settings

NovaJet 800 Series Service Manual

Figure 4-61. Excessive Ink PreHeat Settings.

The preheat settings are factory set to default settings of 0 (zero) and are dependent upon the installed ink set. These settings are to aid in the minimization of ghosting and or ink density issues. The preset heater settings in conjunction with the ambient or surrounding temperature could be causing the cartridge to get too hot. This could cause the ink to boil inside the jetplate and create air bubbles. Air bubbles in the ink will result in ink starvation and dropout problems. Excessive heat also causes the viscosity to reduce (gets thinner) which can create pooling or puddling on the jetplate. This in turn can result in random spitting and burping due to excessive accumulation of ink on the jet plate.

The following preheat settings are recommended for each stall position to prevent ink starvation and dropout from occurring.

Yellow (Y)	0 - default setting
Magenta (M)	0 - default setting
Cyan (C)	0 - default setting
Black (K)	0 - default setting
1	0 - default setting
2	0 - default setting
3	0 - default setting
4	0 - default setting

Troubleshooting 4-58