1. Engineer Training Supply Unit TJ8300 / TJ8500 Supply Unit

2. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 2 General Description  Located in the electronic cabinet  Easily accessible and serviceable

3. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 3 General Description (Cont.) The supply unit has four functions:  Generates all of the DC voltages in the machine  Switches voltages on/off  Protections via circuit breakers and fuses  Light indications for quick diagnostics

4. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 4 General Description (Cont.) The supply unit includes two modular Lambda power supplies:  The first Lambda power supply produces 2 X 24 VDC voltage, which are connected in serial. The result is 48 VDC, which is supplied to the inkjet drivers. Its maximum output power is 1000 W.  The second Lambda power supply generates 5 VDC, 12 VDC and 24 VDC. Its maximum output power is 1000 W.

5. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 5 General Description (Cont.) A voltage of 5 VDC is consumed by the following:  Drum home  Drum encoder (Optic Read head)  Encoder interface boards (Drum, Bridge, Buffer and Roller)  Paper sensors

6. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 6 General Description (Cont.) A voltage of 12 VDC is consumed by the following:  Inkjet drivers  TPFM boards  QLM  STC controller  I/O controller  Bridge heating controller (BHC)  Motion control driver board (MCDB)  Proximity switches  Color control board (CCB)  Sol-amp driver (in the control unit)

7. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 7 General Description (Cont.) A voltage of 24 VDC is consumed by the following:  All I/O system  All solenoids of Color system  Galil board

8. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 8 Supply Unit Switches  Main on/off switch of the supply unit  Control on/off switch  Data power on/off switch – Controls 48 VDC, 12 VDC (IJ drivers, TPFM and QLM)  Bridge heating power breaker switch – Controls 35 VAC for the bridge heating controller (BHC)

9. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 9 Supply Unit Switches (Cont.)  S1 switch – main power input to the supply unit.  S2 switch (Control power ) – powers up or down all the control voltages in the machine.  S3 switch (Data power) - powers up or down all data voltages in the machine (5VDC QLM,12VDC and 48VDC).  S4 switch (Bridge heat) - powers up or down the 35VAC for the bridge heating.

10. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 10 Operation and Controls  The 48VDC operation for IJ drivers is controlled from the software and can be switched on and off from the I/O.  Protection for the IJ Drivers – if the 12VDC is not enabled to the IJ Drivers; the 48VDC can not be applied.  There is a feedback for the 48VDC voltage of the IJ drivers from the supply unit to the computer (for diagnostics purposes).

11. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 11 Operation and Controls (Cont.)  Voltages for motion drivers are controlled from the I/O – checking the I/O outputs enables voltage to the motion drivers (similar to AC Control of the PJ).  Drum Over speed protection – receives a relay dry contact from the MCDU, which delivers the voltage to the drum driver. If there is too much speed, the absence of the dry contact relay from the MCDU to the Supply unit will shut down the voltage to the drum driver.

12. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 12 Light Indication and Fuse Protection

13. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 13 F & L List Label

14. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 14 Rear View and Connections (Cont.) 230VAC from the Electrical cabinet

15. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 15 Rear View and Connections (Cont.)  J1 Connector – main power in  J2 Connector – 48VDC for IJ drivers and 12VDC for TPFM/QLMT  J3 Connector – 12DC for TPFM/QLMT  J4 Connector – 12VDC for QLM  J5 Connector – not in use  J6 Connector – input powers from the AC transformer  J7, 8, 9, 10 Connector – voltages Aux  J11 Connector – to drum driver  J12 Connector – to MCDU (motion control driver unit)  J13 Connector – to Control unit  J14 Connector – all voltages for printing unit  J15 Connector – diagnostics to the computer

16. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 16 Inside View

17. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 17 Inside View (Cont.) Second Lambda power supply generates 48VDC for IJ Drivers First Lambda power supply generates 5,12 and 24VDC for control Control relays C1- 48VDC capacitor C2- 24VDC capacitor

18. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 18 Lamda Power Supplies 24VDC 5VDC 12VDC 24VDC 48VDC

19. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 19 Relays and Controls

20. Engineer Training Supply Unit TJ8300 / TJ8500 Confidential 20 Relays  K1 – Controls relay for IJ drivers.  K2 – Controls relay for data.  K3 – 12VDC Indicator for IJ drivers (protection for IJ drivers – if K3 relay is not enabled, K1 relay, which enables 48VDC for IJ drivers, can not be applied).  K4 – 75VAC, 24VAC Relay for motion drivers (Drum driver and MCDU)  K5, K6,K7 – Hold, Off and On control. Enables 24VDC for I/O and CCB systems. Operation of the On or Off relays is enabled from the I/O digital outputs. If On is deselected from I/O digital outputs the Hold relay is automatically enabled.  K8 – Controls relay for CCB and I/O system.