The Olp Jog Function; Electronics; The Luth Computer Board (Lcb) - AGFA Avantra 36/44 Service Manual

When material passes through the OLP, or when Man Start is deactivated the OLP
switches to:
• Ready Mode--if all preset parameters are met
• Idle Mode--if the developer temperature is incorrect
• Low Level Mode--if the solution level is low
When the level is too low in either or both the developer and fixer tank, a halt
message goes to the imagesetter, no media transports. and the processor
automatically disconnects the circulation pumps and heating element in the
developer and fixer sections. No Jog Function mode occurs.
If the MAN START keyhas already been activated when the level gets too low,
the drive motor and dryer section run continuously until the Man Start key is
deactivated. When the correct level is reached, the processor switches to Ready
mode or, if the developer temperature is now inaccurate, to Idle mode.

2.2.5 The OLP Jog Function

In order to avoid crystallization on the rollers in the developer and fixer racks,
the processor automatically and at preset intervals starts the main motor for the
transport rollers and circulation pumps.
2.3

Electronics

The following describes the functions of the OLP computer boards and the
sensors.

2.3.1 The LUTH Computer Board (LCB)

The Luth Computer Board (LCB):
• Organizes the input data
• Performs logic operations
• Performs calculations
• Takes account of the values of the internal timers and counters values
• Takes account of the signal stored in the flags
• Organizes the output of the results
• Input and output includes:
• digital input and output
• analog input
Section IV: On-line Processor
Functional Analysis 2-3