Konica Minolta bizhub 4020 Service Manual page 336

Removal procedure
1. Remove the top cover. See
2. Disconnect the cable (J6: bizhub4020 / JGLV1: bizhub 3320) from the controller board.
3. Before loosening the screws securing the printhead unit, use a sharp pencil or a small, flat-blade
screwdriver to mark the location of the printhead unit on the printer frame. This will be helpful in
positioning the new printhead unit.
4. Disconnect the cable (A) from the printhead unit.
5. Remove the three screws (B) securing the printhead unit.
Installation note: Mechanical and electronic printhead unit adjustments are required to complete the
installation of the printhead unit. See
bizhub 4020/3320 Service Manual
Top cover assembly removal.
Printhead unit adjustments.
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