Epson ActionLaser 1600, Руководство по обслуживанию

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Principles of Operation
P a p e r T a k e - U p S e n s o r a n d P a p e r E x i t S e n s o r
The paper take-up sensor has three functions:
1. To detect the top edge of paper. The engine starts printing when the detection
signal is received.
2. To detect paper size. The printer detects the time it takes for paper to pass the
paper take-up sensor during paper feeding. If this time is long, longer paper is
feeding; if the time is short, shorter paper is feeding.
3. To detect paper jams and feed jams.
If the paper take-up sensor does not turn on for paper feeding, the printer detects
a feed jam. A feed jam is a paper jam that has occurred in the feed process. If any
of the following conditions is detected, the printer detects a paper jam. A paper
jam is a jam that occurs in the printing process area.
Ž
The paper take-up sensor (PC2) or the paper exit sensor (PC3) is on at power
on or when the upper case is closed.
Ž
The paper take-up sensor (PC2) or the paper exit sensor (PC3) is not turned
on/off within the specified time. (Refer to the following timing chart.)
F i g u r e 2 - 1 8 . P a p e r T a k e - u p S e n s o r a n d
P a p e r E x i t S e n s o r O n / O f f T i m i n g
EPSON ActionLaser 1600 Service Manual
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