Dell 720 Color Inkjet Printer

Function

The dell printer is designed to print ink onto papers. This is a cheaper version of a printer and is often given out by dell free with the purchase of a computer bundle.

How The Printer Works

The Primary function of the printer is to spray the ink onto the paper in distinguishable patterns.

This is accomplished by:

1. Feeding in the paper.

2. Moving the ink jets laterally.

3. Spraying the ink onto the paper.

4. Feeding the paper out of the system.

Components

The table belows Contains the Components in the Dell 720 Inkjet Printer:

Table 1: Dell 720 Inkjet Component List
Part # Part Name Category Function Material Picture
1 Casing Structural Component Protection Plastic
2 Roller #1 Output / Transmission Brings Paper from feeder into tray Plastic / Rubber coating
3 Motor #1 (Right Motor) Input Power Feed system for gear train Metal motor, plastic components
4 Printer Housing Structural Component Protects internal components from the environment Plastic
5 Printer Housing Structural Component Protects internal components from the environment Plastic
6 Printer Housing Structural Component Protects internal components from the environment Plastic
7 Printer Housing Structural Component Protects internal components from the environment Plastic
8 Printer Housing Structural Component Protects internal components from the environment Plastic

After looking at the components that make up a printer we modeled two of the components to healp us quantitativly verify how the printer works.

The Slider Mechanism

One motion of the printer that can be modeled and explored is the action of the inkjet acriss the paper. This is shown below modeled with the inkjet, the rod it slides along, the motor and the belt that controlls the motion.

Figure 1: Isometric View
Figure 2: Top View
Figure 3: Front View

To analyze the data we can model this system in adams. The simulation to be run will use a step function to define the velocity of the printer head across the paper. This velocity was calculated from the knowledge of how many pages per minute the printer prints and turns out to be 29 inches per second. With this data we can run a simplified simulation of the printers motion.

The Results

From the result of the simulation we have procured graphs of velocity and acceleration as the printer makes one pass of its motion, starting in the center and ending the same.

Figure 4: Velocity of Printer Head
Figure 5: Acceleration of Printer Head