92 are formed in a row 89 as three groups 92a 92b 92c fig9 each group ejecting ink of a pre determined color as supplied through the corresponding inlet the color printhead assembly comprising printheads 70 80 is connected to heat sink 100 also mounted on heat sink 100 is daughter board 102 electrical connections to the color printhead 80 are made by wires 104 connected between paths 106 formed on ledge 89 and daughter board 102 electrical inter connection to the black printhead 70 is made by wires 108 connected between paths 110 and the daughter board all wire bond pads are positioned away from the center of ledge 75 on heater substrate 74 to make room for the ink inlet 76 as shown in fig9 the nozzle row 87 of the black printhead 70 is at a distance d from the nozzle row 89 of printhead 80 d being less than the prior art configuration the distance d would be approximately 1 mm whereas in prior art parallel printheads the distance d would typically be 10 to 30 mm a partial view of an ink delivery system 120 is shown in fig1 a stepped manifold 122 has ledges 124 126 which conform to ledges 75 and 91 of heater substrate 74 82 respectively and overlying the area free of the electrode pads the manifold has opening 128 through which ink flows from a reservoir along the surface of heater substrate 74 and into inlet 76 black ink is supplied through tube 129 ink is supplied to inlets 86 88 90 from ink compartments 130 132 134 respectively ink of the appropriate colors are introduced into the internal ink sections through tubes 136 138 140 from the.