Service manual

ii
Table of Contents
Functional Description ...................................................... 2-1
Printer Components and Internals ........................................................ 2-2
Locating the Functional Components ..................................................................... 2-3
General Block Diagram........................................................................ 2-4
Monochrome Ink Jet Print Head Functioning....................................... 2-5
Ink Jet Print Head Description ................................................................................2-5
Ink Jet Printing ........................................................................................................ 2-7
Print Nozzles ...........................................................................................................2-9
Matrix components .............................................................................................. 2-9
Information on the Resistive Heating Element's Activation Circuitry ................. 2-10
Color Ink Jet Print Head Functioning................................................. 2-11
Ink Jet Print Head Description ..............................................................................2-11
Ink Jet Printing ...................................................................................................... 2-13
Print Nozzles .........................................................................................................2-13
Information on the Resistive Heating Element's Activation Circuitry ................. 2-14
Operating Controls ............................................................................. 2-15
Operator Panel .......................................................................................................2-15
Buttons Functions ..................................................................................................2-16
Print Head Selection Lever................................................................. 2-17
TOCSERV.PM5 11/7/94, 17:372