NovaJet 800 Series Service Manual

Figure 4-11. Stall Configuration.

Ensure the left or right Carriage PWA is tested properly.

15.Replace the Main PWA only if a specific test pattern, calibration, or jet sequence fails to print. Magnetic tipped screwdrivers are known to have caused these types of Main PWA failures in the past. Please exercise caution when handling circuit assemblies and always attach an electrostatic discharge (ESD) wrist strap. Refer to Disassembly.

Common Misfire Problems

Cartridge electrical contacts may have oil or ink on surface (clean with isopropyl alcohol). See illustration below for an example of a defective magenta cartridge.

Figure 4-12. Magenta Cartridge Misfires.

Carriage assembly flex driver cable may have ink or debris on contacts (clean with alcohol).

Troubleshooting 4-25

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Kodak 800 SERIES service manual Common Misfire Problems, Stall Configuration