Chapter 22 - Printers and Multifunction Devices Flashcards
Laser Printer
a printer with a photosensitive drum
Steps of a Laser Printer
- Processing, 2. Charging, 3. Exposing, 4. Developing, 5. Transferring, 6. Fusing, 7. Cleaning.
Processing
Print job is stored on the local memory of the printer.
Charging
Primary corona puts a negative charge on the Photosensitive drum.
Exposing
Laser writes on the drum reducing the drums charge.
Developing
Toner release ink that sticks to the drum.
Transferring
The Transfer corona charges the paper with a strong positive charge, and hits the drum printing to the paper.
Fusing
Heat and pressure apply the ink to the paper.
Cleaning.
A scrapper cleans off any excess ink/toner on the paper.
Steps to maintain laser printer?
Replace toner and clean printer.
Maintenance Kits
Basically a tools/parts kit that come with or pair/match up with laser printers.
Calibration for laser printers
Color printers will need to have the transfer rolls re-calibrated.
MFD stands for what?
Multifunction devices(MFDs) inlcude printers, scanners, copiers, and fax machines.
Maintain an Inkjet printer
Clean the nozzles/jets, and again calibrate colored inkjet printers. replace ink cartridges, clear paper jams,
Inkjet printers
Use heat or mechanical process to push ink through the print heads to the paper.
impact printers
very old printers that strike an ink ribbon to write to paper, used during the old days of mainframes. Don’t have maintenance kits.
Ink Ribbon
holds the ink and presses the ink to the paper.
Maintenance for Impact Printers
Replacing Ink Ribbons and Print Heads. Tractor feed paper jams.
Print Heads
presses a needle through the ink ribbon to press ink on the paper
Impact Paper
Paper used in Impact printer, a multipart form or otherwise known as tractor feed paper.
Thermal Printers
a receipt printer, heats special paper to create a printout. Where you hit the paper with heat it changes color.
Thermal Printer parts
Feed assembly and a heating element.
Special Thermal Paper
Thermal multiform paper seen with thermal printers.
Maintenance for Thermal printers
Replacing paper a lot, clean heating element, remove debris.
Primary connection for all types of printers?
USB but some do use serial connections
Printer firmware
Printers do have firmware and commonly have firmware updates.
Spooler
is just the software that stores print jobs. You have to have permissions to operate the spooler.
Collate
Number and staple paper.
Duplex
Double sided printing.
Virtual Printers
Print to PDF, Print to XPS, Print to Image. Not actually printing just sending/converting to a certain file type or location.
Sharing Printer
Sharing a local printer over a network requires sharing enabled and a share name.
Data Privacy
Shared printers which are usually MFDs copy and send data to public locations like icloud and google drive.
Mapping printers
Used to print from very old programmers.
Google cloud printing
Cloud printing enables moblie devices to print to a printer associated with an online account, such as google account.
Unable to install printer
No permissions to install the printer.
No Connectivity
are you connected to it, is it on the network, are other people connected to it.
Rollback device driver
if not working rollback device driver and re-install.
Access denied
no permissions
No image on printer display
Is it on, is it in sleep mode, locked out of printer
Paper not feeding, Paper jam
pick-up rollers and separate pads need to be replaced, humidity destroys paper
Low memory errors
Laser printers have RAM, reduce resolution, buy more RAM for the printer.
Error Codes
research code errors and figure out what the error code means.
Garbled Characters on paper
bad or corrupted drivers, clear spooler and hard reset printer.
Vertical lines on pages
Laser printer foreign matter on your optic sensitive roller. Replace toner.
Color prints in the wrong print color
Driver, lost a color/empty color cartridge.
Printing blank pages
Physical issue, like replacing toner
Streaks
inkjet, clogged inkjet heads
Faded Prints
Laser replace toner, impact replace ribbon, inkjet clogged jets.
Ghost Images
Laser printer replace toner
Toner not fused to paper
Laser printer replace fuser
Creased Paper
maintenance kit pick-up rollers.
3D printers
3D printers melt some material(such as forms of thermal plastic) in a pattern to create 3D shapes
