Инструкция принтер лазерный Катюша P130

Chapter 1 Theory of Operation and Product Structure

1.1 Product Overview
The pickup and feed System consists of several rollers that transport paper through the input trays,
registration rollers, drum unit, fuser, and paper exit. The input trays include Main Tray, and Manual Tray.
These rollers (including the drum unit, fuser, feeding, pickup, reverse, de-skew, and duplex rollers, etc.)
are driven by the stepping motors or DC main motor, as shown in Figure 1-1.
Let’s assume the lift-up operation has been performed (Refer to Paper Pickup Mechanism). After a print
command is received, the main board sends a signal to the pickup motor. And then the pickup clutch is
turned on, and transfers the driving force from the pickup motor to the pickup roller.
The transportation of a paper from an input tray begins at picking up a sheet of paper from the tray where
the Paper Size, Paper Lift-up, and Paper-Empty sensors are used to detect the paper picking process.
Before the paper is then transported to the registration rollers, the de-skew clutch turns on to correct any
paper skewing by adjusting power to the de-skew roller. The registration rollers continue to drive the paper
into EP where the image is transferred from the drum to the paper by attaching magnetic toner particles
onto the paper.
At this point the EP moves the paper to the fuser until the fuser firmly receives the paper detected by the
Fuser sensor. In the fuser, the toner is heated and melts down to the paper to fabricate the permanent
image that is based on the original. The fuser is now in charge of sending the paper after the fusing
process.
The fuser eventually transports the paper to its final destination, Output Tray, or back to the duplex unit
after the Fuser Out and Paper Exit sensors detect the final coated paper.
The following figure illustrates the path of paper in the duplex printing unit: (The path of single-sided printing
is indicated by dotted lines. The path of double-sided printing is indicated by solid lines.）

1.1.1 Paper pickup and feeding system

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Parts illustration：

Fig. 1-1 Paper pickup and feeding system

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