HP LaserJet Pro P1606 HP LaserJet Professional P1560 and P1600 Series Printer - Page 21

Sequence of operation, product is turned on until the motor stops rotating. - toner cartridge

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Sequence of operation The DC controller in the engine-control system controls the operational sequences of the product. The table below describes durations and operations for each period of a print operation from when the product is turned on until the motor stops rotating. Normal sequence of operation Table 1-1 Sequence of operation Name Timing Purpose WAIT From the time the power switch is turned on, the door is closed or the product exits Sleep mode until the product gets ready for a print operation. Brings the product to ready state. The product performs the following during the operations: ● Detects the print cartridge ● Heats the fuser film in the fuser ● Rotates, and the stops, the main motor STBY (standby) From the end of the WAIT or LSTR period until either a print command is sent or the power switch is turned off. Maintains the product in printable condition. The product performs the following during the operation: ● Enters Auto-Off mode if Auto-Off command is received INTR (initial rotation) From the time a print command is received until the The product performs the following during the paper is picked up. operations: ● Drives the main motor ● Activates the high-voltage power supply ● Activates the laser/scanner ● Warms the fuser heater PRINT From the end of the INTR period until the last sheet completes the fuser operation. Forms the image on the photosensitive drum based on the VIDEO signals from the formatter. Transfers and fuses the toner image to the paper. LSTR (last rotation) From the end of the PRINT period until the main motor Moves the last printed sheet out of the product. The stops rotating. product performs the following during the operations: ● Stops the main motor ● Deactivates the high-voltage power supply ● Deactivates the laser/scanner ● Deactivates the fuser heater The product enters the INTR period as the LSTR period is completed, if the formatter sends another print command. ENWW Basic operation 3

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Sequence of operation
The DC controller in the engine-control system controls the operational sequences of the product. The
table below describes durations and operations for each period of a print operation from when the
product is turned on until the motor stops rotating.
Normal sequence of operation
Table 1-1
Sequence of operation
Name
Timing
Purpose
WAIT
From the time the power switch is turned on, the door
is closed or the product exits Sleep mode until the
product gets ready for a print operation.
Brings the product to ready state. The product
performs the following during the operations:
Detects the print cartridge
Heats the fuser film in the fuser
Rotates, and the stops, the main motor
STBY (standby)
From the end of the WAIT or LSTR period until either
a print command is sent or the power switch is turned
off.
Maintains the product in printable condition. The
product performs the following during the operation:
Enters Auto-Off mode if Auto-Off command is
received
INTR (initial
rotation)
From the time a print command is received until the
paper is picked up.
The product performs the following during the
operations:
Drives the main motor
Activates the high-voltage power supply
Activates the laser/scanner
Warms the fuser heater
PRINT
From the end of the INTR period until the last sheet
completes the fuser operation.
Forms the image on the photosensitive drum based
on the VIDEO signals from the formatter. Transfers
and fuses the toner image to the paper.
LSTR (last
rotation)
From the end of the PRINT period until the main motor
stops rotating.
Moves the last printed sheet out of the product. The
product performs the following during the operations:
Stops the main motor
Deactivates the high-voltage power supply
Deactivates the laser/scanner
Deactivates the fuser heater
The product enters the INTR period as the LSTR
period is completed, if the formatter sends another
print command.
ENWW
Basic operation
3