Panasonic DP-CL18 Service Manual page 100

DP-CL18
There are 4 statuses of the accumulator tension unit for controlling the printing process. These 4 statuses are set by the 4 detents
of the cam ratchet wheel.
· Accumulator Belt Cleaning Position:
When the hook (A) engages with the detent (B), the slack in the accumulator belt is taken up by the "Accumulator belt slack"
mechanism. The cleaning of the accumulator belt is done.
· Toner Transfer Position:
When the hook (A) engages with the detent (C), the FTR roller(s) is (are) raised and come in contact with the accumulator belt
by the "Lift FTR Roller" mechanism for transferring the toner from the OPC drum to the accumulator belt, and the STR roller is
engaged with the accumulator belt by the "STR Roller to Accumulator Belt" mechanism for transferring the toner to the paper.
· FTR Roller Release Position:
When the hook (A) engages with the detent (D), the FTR bias roller(s) is (are) released from the accumulator belt by the "Lift
FTR Roller" mechanism.
· Home Position:
When the hook (A) engages with the detent (A), the tension is released in the accumulator belt and the STR roller is removed
from the accumulator belt.
The accumulator cam home position sensor and sensor tab are for detecting whether the status of the accumulator tension unit is
shifted from one position to next within predetermined time or not. if the status of the accumulator tension unit is not shifted to the
next position within the predetermined time, Error Message "Printer Error 24" is displayed on the LCD display. The following chart
figure-4 indicates the relation between the sensor tab and accumulator cam home position sensor at each position.
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