QM7500 Technical Manual
QM31930/03093 Rev AD Table of Contents i
Table of Contents
Table of Contents . . . i
Introduction . . . 1
Maintenance . . . 2
Startup . . . 2
Shutdown . . . 2
Troubleshooting . . . 3
Servicing . . . 6
Preparing the QM7500 for Servicing . . . 6
Special Notes for Reassembling the QM7500 Printhead . . . 6
Standard QM7500 Assembly . . . 7
Printhead Assembly . . . 8
Controller Assembly . . . 9
Backflushing a Nozzle . . . 10
Backflushing a Valve . . . 11
Replacing the Nozzle Block . . . 11
Optional 7 mm, 15 mm, and 20 mm Nozzle Blocks . . . 12
Replacing a Valve . . . 12
Replacing the Regulator . . . 13
Replacing the Valve/Photocell Board . . . 15
Replacing the Display . . . 17
Replacing the Battery . . . 18
Replacing the Circuit Board . . . 19
Parts List . . . 20
Introduction . . . 20
QM7500 100/240V with US Power Cord . . . 21
QM7500 100/240V with International Power Cord . . . 21
QM7500 100/240V Arabic . . . 21
QM7500 100/240V Chinese . . . 21
QM7500 Printhead Assembly . . . 23
QM7500 Controller Assembly . . . 25
Consumables – Porous . . . 26
Other Components . . . 26
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