Print shit

Question 1

Photosensitive / Imaging Drum

Answer 1

Causes line to appear down the printed page.
Image is drawn onto photosensitive drum “painted with laser”
Picks up toner - transfer toner to the paper

Question 2

Fuser Assembly

Answer 2

provides the heat and pressure required to permanently affix the toner to the printed page

Question 3

Toner

Answer 3

With laser printer toners, if the toner is low the out put would be more faint.

Question 4

Steps of a laser printer

Answer 4

Step 1: Processing
• Build the entire page in memory
Step 2: Charging
• Prepare the drum with a
negative electrostatic charge
Step 3: Exposing
• Write the image with the laser
Step 4: Developing
• Add toner to the charged areas
of the imaging drum
Step 5: Transferring
• Move the toner from
the drum to the paper
Step 6: Fusing
• Heat and pressure
Step 7: Cleaning
• Remove excess toner

Question 5

Transfer belt and roller

Answer 5

• Color laser printers
• Cyan, yellow, magenta, black
• Four separate toner cartridges
• Image is transferred from all cartridges to the single belt
• And then to a single transfer roller

Question 6

Duplexing Assembly

Answer 6

Duplexing assembly
• Printers usually print on a single side
• Not both sides simultaneously
• Printing on both sides is a two step process
• Print side one, print side two
• You need mechanisms to “flip” the page
• Automatically
• Can be built-in to the printer
• Or available as an add-on

Question 7

Pick up rollers

Answer 7

• Pickup paper - Should be a single page at a time
• Problems if no paper is picked up
or multiple sheets are picked
• Should be periodically cleaned or replaced

Question 8

The printing process involves seven steps for a laser printer:

Answer 8

PCED TFC
processing
    charging
    exposing
    developing
    transferring
    fusing
    cleaning