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ADJUSTMENT
1. Layout of the adjustment elements
¥ Main circuit board
GND
VR1
REAR
MAIN PWB
VR1
Reference voltage for thermal head automatic adjustment
2. Adjustment
1) Never turn VR1 on the main circuit board . The service repair circuit board has been adjusted before shipping.
3. Caution Items for the Time of Exchange of the Main Circuit Board
1) When the main circuit board is exchanged, the user mode and service mode settings must be stored on the new
circuit board.
For details, refer to the item "2.6 Parameters Push/Pop" of service mode.
2) For the other circuit boards and units, there is only exchange.