The paper deck controller 3 determines a PD cassette 3 lifter motor failure and notifies the formatter
through the DC controller when the PD cassette 3 media stack surface sensor does not detect the paper
surface within a specified period from when the PD cassette 3 lifter motor starts rotating.
Paper deck cassette media-presence detection
The paper deck controller detects whether the paper is loaded in the cassette by monitoring the PD
cassette media out sensor.
The cassette media-presence detection is not performed during Sleep mode.
The paper deck controller determines a media-absence and notifies the formatter through the DC
controller when the PD cassette media out sensor does not detect the paper.
Paper deck jam detection
The paper deck uses the following sensors to detect the presence of paper and to check whether paper
is being fed correctly or has jammed:
●
PD cassette 1 media feed sensor (SR1)
●
PD cassette 2 media feed sensor (SR81) (3x500-sheet paper deck only)
●
PD cassette 3 media feed sensor (SR91) (3x500-sheet paper deck only)
Figure 1-53
Paper deck jam detection sensors
SR1
PD cassette 1 media feed sensor
PD cassette 2 media feed sensor
PD cassette 3 media feed sensor
SR81
SR91
No pick jam 2
The PD cassette 1 media feed sensor does not detect the leading edge of paper within a specified
period (including two retries) from when the PD cassette 1 pickup solenoid is turned on.
The PD cassette 1 media feed sensor does not detect the leading edge of paper within a specified
period from when the PD cassette 2 media feed sensor detects the leading edge. (3x500-sheet paper
deck only)
ENWW
1x500 and 3x500 paper feeder and stand
73
Summary of Contents for LASERJET ENTERPRISE MFP M725dn
Page 1: ...LASERJET ENTERPRISE MFP M725 Troubleshooting Manual M725z M725dn M725f M725z ...
Page 2: ......
Page 3: ...HP LaserJet Enterprise MFP M725 Troubleshooting Manual ...
Page 6: ...iv Conventions used in this guide ENWW ...
Page 32: ...xxx ENWW ...
Page 142: ...110 Chapter 1 Theory of operation ENWW ...
Page 457: ...4 Close the fuser jam access cover 5 Close the fuser door ENWW Clear jams 425 ...
Page 475: ...1 Lift the document feeder latch 2 Open the document feeder cover ENWW Clean the product 443 ...
Page 516: ...484 Appendix A Service and support ENWW ...
Page 545: ......
Page 546: ... 2013 Hewlett Packard Development Company L P www hp com CF066 91023 CF066 91023 CF066 91023 ...