Sequence of operation

The DC controller in the engine-control system controls the operational sequences of the printer. The table below describes durations and operations for each period of a print operation from when the printer is turned on until the motor stops rotating

Normal sequence of operation

Table 1-1Sequence of operation

Name

Timing

Purpose

 

 

 

WAIT

From the time the power switch is turned on or the

Brings the product to printable condition. The product

 

door is closed until the printer is ready for a print

performs the following during the operation:

 

operation.

● Detects the print cartridge

 

 

 

 

 

STBY (standby)

From the end of the WAIT or LSTR period until either

Maintains the product in printable condition.

 

a print command is sent or the power switch is turned

 

 

off.

 

 

 

 

INTR (initial

From the time the print command is received until the

Starts up the high-voltage biases, the laser/scanner

rotation)

temperature of the fuser unit reaches its targeted

and the fuser unit for printing.

 

temperature.

 

 

 

 

PRINT

From the end of the INTR period until the last sheet

Forms the image on the photosensitive drum based

 

completes the fuser operation.

on the VIDEO signals from the formatter. Transfers

 

 

and fuses the toner image to the paper.

LSTR (last

From the end of the PRINT period until the main motor

rotation)

stops rotating.

Moves the last printed sheet out of the product.

The product enters the INTR period as the LSTR period is completed, if the formatter sends another print command.

ENWW

Basic operation 3