8-1681640J JP 90 - Service Manual8. DISASSEMBLY/REASSEMBLY PROCEDURES8.1 PRELIMINARY WARNINGSTO ENSURE MAXIMUM SAFETY, POWER OFF THE PRINTER AND UNPLUG IT FROM THEELECTRICAL OUTLET BEFORE BEGINNING ANY OPERATION.ALL OPERATIONS MUST BE CARRIED OUT IN A CLEAN AND CLEAR AREA.MAKE SURE THE PRINT HEAD IS IN ITS PARKING POSITION BEFORE POWERING OFFTHE PRINTER.WHEN REMOVING THE PRINT HEAD FROM THE PRINTER, NEVER RESET IT ON ITSELECTRIC CONTACTS NOR ON THE NOZZLES; NEVER TOUCH THESE PARTS.NO ADJUSTMENTS NEED TO BE MADE TO THE PARTS AFTER THEIR DISASSEMBLY/REASSEMBLY. TO REASSEMBLE THE PARTS FOLLOW THEIR DISASSEMBLYPROCEDURES IN REVERSE ORDER. MAKE SURE ALL THE CONNECTORS ARE FITTEDPROPERLYWHEN FINISHED, TEST THE PRINTER TO MAKE SURE THAT THE FAULT IS CORRECTED.