Kodak 800 SERIES service manual Print Quality Issues Cartridge Misfires Intermittent Banding

NovaJet 800 Series Service Manual

Print Quality Issues

Cartridge Misfires (Intermittent Banding)

Cartridge or print head misfires (clogged jets or misfiring jets) lead to microbanding in prints and can cause operational downtime. The Prime pattern tests all cartridge jets. Activate the Prime pattern several times to verify the problem. Any clogged jet or misfiring jet should be cleared through cleaning of the cartridge jet plate (See ‘Routine Maintenance’) or through Manual Jet Bypass (up to 20 jets may be manually bypassed in each color to maintain satisfactory print performance).

Note 1: Satisfactory print performance is defined for each give mode:

2x4 mode	3 pass print mode
1x8 mode	4 pass print mode
1x4R	4 pass print mode
1x4L	4 pass print mode

Note 2: Warranty is applied to cartridges that have 10 or more defective jets (100% filled blocks only.)

Figure 4-1. Cartridge Misfire.

Troubleshooting 4-19