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Preventive Maintenance
1. Turn off the scanner and disconnect the power plug.
2. The lamp cover is on the top right edge of the scanner. Grasp the cover on
3. You must replace the whole lamp-unit. A lamp-unit consists of a lamp
HP Designjet T1100 MFP, 4500mfp, 4500 Scanner, 820 MFP Service Manual
6-4
defects are alleviated.
To replace the lamp unit follow these steps:
each side with both hands and pull back to detach it. Lift the cover upwards
to free it from the scanner.
mounted in a reflector brace and fixed power connectors. Grasp the edge of
the lamp-unit and carefully pull it out of the scanner.

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Troubleshooting

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This manual also for:

4500mfp, 4500, 820 mfp

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