Replace Print Device Consumbables Flashcards
Lesson 9B
Laser printer
automatically turns over paper and feeds the developer unit for backside print. A manual has to be fed (input tray) in untouched order.
Duplex assembly unit
Device uses separate toner cartridges for each color.
Color laser printer
Laser printer
Loading Paper
- use quality paper/output document or photo
- media guides detect paper size
- Clean and uncreased
Laser printer
Printer Cleaning
- damp cloth exterior
- dusting/IPA alcohol interior
- manfacturer instructions
laster printer
maintenance kit
is a set of replacement feed rollers, transfer roller, and fuser unit.
laser printer
calibration
is the process by which the printer determines the appropriate print density or color balance (basically, how much toner to use).
Inkjet printer
- low cost/home use
- costly good coloring
- slower
Inkjet printhead
create high-quality images by firing microscopic ink droplets at paper. They are prone to smearing and fading, especially without specially treated paper. Two print heads: thermal/ Piezoelectric.
Inkjet printer
Carriage
where printhead is moved in bi or unidirectional, line by line on paper.
Inkjet printer
carriage system components
- Stepper Motor: Moves the print head.
- Pulley & Belt: Guide the movement.
- Guide Shaft: Keeps the print head stable.
- Sensors: Detect print head position.
- Flat Ribbon Data Cable: Connects the print head to the circuit board.
inkjet printer
ink cartridge
Some have built in print heads of thermal heads that last with the printer. cartridge reservoir has sensors to detect the level of ink remaining of CYMK inks determine by driver.
inkjet printer
print head alignment?
If output is skewed, use the print head alignment
function from the printer’s property sheet to calibrate the printer.
Print head cleaning
A blocked or dirty nozzle will show up on output as a missing line. Use the printer’s cleaning cycle
thermal printer
small, portable in various types and used for labels, receipts, barcodes, support 200–300 dpi (dots per inch)
Thermal Printer Process
uses thermal paper, comes in a roll. Heated through a feed assembly/ stepper motor.
thermal printer
maintenance tips
correct paper roll size, brand, model, heat sensitive side facing outward. dust debris, wipe IPA alcohol for stickiness.
impact printer
strikes an inked ribbon against paper to leave marks. One common type is the dot matrix printer, which uses a column of pins in a print head to strike the ribbon. tractor-fed paper. for specialized: invoices, pay slips.
impact printer
paper
carbon or tractor-fed, fed firmly against roller
impact printer
Components
- two spool ribbon
- cartridge over printhead
- two way direction w. sensor to return
- one unit replacement ribbon/
3-D Printer
builds a solid object from successive layers of material of rubber, plastic, carbon fiber and alloy. used in manufacturers, healthcare etc.
3D printer
process
- scanned object or modeling software
- slicing software, horizontal layers/slices
- melts slices into build w bed moving (X/Y/Z axes) at times
3D printer
components
serveral types, one: Fused filament fabrication (FFF) aka fused deposition modeling (FDM):
* build plate
* build surface
* Extruder-print head (nozzle)
* Gears/motors/motion control
* fan
3D printer
Filament
“ink” polylactic acid (PLA)/acrylonitrile butadiene
styrene (ABS)
3D printer
resin
Stereolithography (SLA) or photopolymer uses liquid plastic, using an ultraviolet laser.