500-Sheet Paper Feeder Jam Detection; No Pick Jam 2; Residual Paper Jam 1; Figure 1-44 500-Sheet Paper Feeder Multiple-Feed Prevention - HP LaserJet Enterprise 700 M712 series Handbuch Zur Fehlerbehebung

by its own driving force and the multiple-fed paper are pushed back to the cassette. Therefore,
single sheet is fed into the product.
Figure 1-44

500-sheet paper feeder jam detection

The paper feeder uses the PF cassette media feed sensor (SR1) to detect the presence of paper and to
check whether paper is being fed correctly or has jammed.
Figure 1-45

No pick jam 2

The PF cassette media feed sensor does not detect the leading edge of paper within a specified period
(including 2 retries) from when the PF cassette pickup solenoid is turned on.

Residual paper jam 1

The PF cassette media feed sensor detects a paper-presence when the automatic delivery is complete.
56 Chapter 1 Theory of operation
500-sheet paper feeder multiple-feed prevention
PF cassette pickup roller
Paper
<Normal-feed>
500-sheet paper feeder cassette jam detection sensor
PF cassette feed roller
Driving force transmitted from
the PF cassette feed roller
Driving force transmitted from
the PF cassette pickup motor
PF cassette separation roller
<Multiple-feed>
PF cassette media feed sensor
SR1
ENWW