Table 1-1
Operation sequence
Period
Duration
Purpose
WAIT period
From the time the power switch
is turned on, the door is closed
or, product exits Sleep mode
until the product is ready for a
print operation.
Brings the product to the Ready state.
●
Detects the failure of the low-voltage power supply
●
Detects the connection with the accessories
●
Detects the presence of cartridge
●
Rotates and then stops each motor and fan
●
Checks the fuser temperature
●
Heats the fuser film
●
Detects any residual paper and clears it automatically
●
Initializes the high-voltage bias
●
Cleans the photosensitive drum
●
Detects the toner level
STBY (Standby period)
From the end of WAIT or LSTR
period until either a print
command is sent or the power
switch is turned off.
Maintains the product in printable condition.
●
Enters Sleep mode if the sleep command is received
●
Rotates and then stops each fan
INTR (Initial rotation)
From the time the print
command is received until the
product picks up the paper.
Prepares the product for a print job.
●
Rotate the motors
●
Rotate the fans
●
Outputs the high-voltage bias
●
Starts up the laser scanner assembly
●
Warms up the fuser heater
From the end of the INTR
period until the last sheet is
delivered.
Processes the print job.
●
Forms the image on the photosensitive drum
●
Transfers toner to the paper
●
Fuses the toner image onto the paper
LSTR (Last rotation)
From the end of the PRINT
period until the motor stops
rotating.
Stops each load.
●
Stops the motors and fans
●
Stops the high-voltage bias
●
Stops the laser scanner assembly
●
Stops the fuser heater
The product enters the INTR period as the LSTR period is
complete if, the formatter sends another print command.
ENWW
Basic operation
3
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 ...