Konica Minolta bizhub 4422 bizhub 4422 User Guide - Page 193
Vertical dark streaks with print missing, Step 4, Warning-Potential Damage
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Troubleshooting 193 Action Yes Step 4 a Remove, and then insert the imaging unit. Go to step 5. Warning-Potential Damage: Do not expose the imaging unit to direct light for more than 10 minutes. Extended exposure to light can cause print quality problems. Warning-Potential Damage: Do not touch the photoconductor drum under the imaging unit. Doing so may affect the quality of future print jobs. b Print the document. No The problem is solved. Do vertical dark lines or streaks appear on prints? Step 5 a Replace the imaging unit. b Print the document. Contact customer The problem is support. solved. Do vertical dark lines or streaks appear on prints? Vertical dark streaks with print missing Note: Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to Settings > Troubleshooting > Print Quality Test Pages. For non‑touch‑screen printer models, press to navigate through the settings.