Mid-spool support for heavy media rolls .......................................................................................... 116 About the takeup assemblies .......................................................................................................... 117 About the limit switches ................................................................................................................. 118 Electronics ..........................................................................................................119 Wiring diagram for the FB500 printer .............................................................................................
119 Wiring diagram for FB500 main electronics..................................................................................... 120 Wiring diagram for the FB700 printer ............................................................................................. 121 Wiring diagram for FB700 main electronics..................................................................................... 122 About the main electronics box....................................................................................................... 123 Electronics box components identified .............................................................................................
123 About the motor control board........................................................................................................ 124 About the 38v/24v power supply................................................................................................... 125 About the AC power distribution board ........................................................................................... 125 About the AC filter ........................................................................................................................ 125 About the AC relay .......................................................................................................................
126 About the ATX power supply .......................................................................................................... 126 About the hard disk....................................................................................................................... 126 About the motherboard.................................................................................................................. 126 About the UV power supply............................................................................................................ 126 About the I/O board.....................................................................................................................
128 About the main power cable .......................................................................................................... 129 Uninterrupted power supply ........................................................................................................... 130 Cable Pinouts .....................................................................................................131 Troubleshooting printer components .....................................................
142 Troubleshooting carriage-drive assemblies .........................................................142 Carriage motion failures ................................................................................................................ 142 Troubleshooting carriage motion failures.......................................................................................... 142 Troubleshooting the carriage-drive smooth pulley .............................................................................. 144 Troubleshooting the carriage-drive shaft...........................................................................................
144 Troubleshooting the carriage-drive timing belt................................................................................... 144 Troubleshooting the carriage-drive motor ......................................................................................... 144 Troubleshooting the carriage-drive belt ............................................................................................ 145 Troubleshooting the rail strips ......................................................................................................... 145 Troubleshooting the carriage encoder strip.......................................................................................
145 Troubleshooting Carriage Assemblies .................................................................146 Troubleshooting carriage head height ............................................................................................. 146 Troubleshooting the lamps.............................................................................................................. 146 Troubleshooting the camera ........................................................................................................... 146 Troubleshooting the air manifold.....................................................................................................
146 Troubleshooting the carriage ink filters............................................................................................. 147 Troubleshooting printhead reservoirs ............................................................................................... 147 Troubleshooting thermistors ............................................................................................................ 147 Troubleshooting the vacuum tube .................................................................................................... 147 Troubleshooting split vacuum tubes..................................................................................................
147 Troubleshooting printheads ............................................................................................................ 147 Troubleshooting the printhead interface plate ................................................................................... 148 Troubleshooting the carriage headboard ......................................................................................... 148 Troubleshooting the carriage encoder reader ................................................................................... 148 Troubleshooting the home sensor ....................................................................................................
149 Troubleshooting the upper trolley .................................................................................................... 149 Troubleshooting the lower trolley..................................................................................................... 149 Troubleshooting the OHS assemblies ..................................................................150 Troubleshooting the vacuum assembly ............................................................................................. 150 Troubleshooting the vacuum pump ..................................................................................................
150 Troubleshooting the vacuum regulator.............................................................................................. 150 Troubleshooting the vacuum accumulator ......................................................................................... 150 Troubleshooting the vacuum restrictor .............................................................................................. 151 Troubleshooting the vacuum sensor ................................................................................................. 151 Troubleshooting vacuum power supply ............................................................................................
151 Troubleshooting the pressure pump ................................................................................................. 151 Troubleshooting the ink pumps........................................................................................................ 151 Troubleshooting the ink-line check valve........................................................................................... 151 Troubleshooting profilers................................................................................................................ 152 Troubleshooting the ink shaker........................................................................................................
152 Troubleshooting ink-box filters......................................................................................................... 152 Troubleshooting the OHS controller................................................................................................. 152 Troubleshooting maintenance system .................................................................153 Troubleshooting the service station .................................................................................................. 153 Troubleshooting the printhead wipers .............................................................................................. 153 Part No.
CQ114-90035 Rev B HP Scitex FB500 / FB700 Service Manual Page 3 of 510