Computer Related Articles found here
Computer products and information about computers found here
Featured Articles
    The Apple Computer System
Office Products
    CD-R, DVD-R, Blank Media
    Copiers & Copier Supplies
    Fax Machines & Supplies
    Microfilm & Microfiche
    Office Equipment
    Office Furniture
    Presentation, AV, Projectors
    Shredders
    Supplies & Small Equipment
    Trade Show Displays
    Other Office Products
    Wholesale Lots
Apple Computers & Components
    Apple Accessories
    Apple Components
    Apple Desktops
    Apple Laptops & Notebooks
    Apple Networking
    Apple Printers, Scanners & Ink
    Vintage Apple
    Wholesale Lots
    Other
Computers
    Acer
    Alienware
    Asus
    Dell
    Gateway
    HP, Compaq
    IBM, Lenovo
    Sony
    Whitebox, Custom Systems
Printers
Printer Supplies & Accessories
    Cleaning, Repair Kits
    Feeders, Trays
    Ink Cartridges
    Ink Refill Kits
    Ink Ribbons
    Laser Drum Cartridges, Fusers
    Laser Toner
    Power Supplies
    Print Heads
    Printer Memory
    Printer Paper
    Sign Vinyl
    Other
Retail Equipment & Supplies
    Beauty & Salon Equipment
    Labeling & Tagging Supplies
    Mannequins & Dress Forms
    Racks & Fixtures
    Security & Surveillance
    Shopping Carts & Baskets
    Other
Plastics
    Auxiliary Process Equipment
    Injection, Blow Molding
    Molds, Dies
    Raw Materials & Scrap
    Other Items
Manufacturing & Metalworking
    Manufacturing Equipment
    Metalworking Equipment
    Metalworking Tooling, Supplies
    Process Equipment
    Metals & Alloys
    Semiconductor & PCB Equipment
    Textile & Apparel Equipment
    Welding
    Woodworking
    Other
Industrial Equipment, MRO
    Adhesives & Sealant
    Cleaning Equipment & Supplies
    Commercial Radios
    Compressors
    Fasteners & Hardware
    Forklifts & Other Lifts
    Forklift Parts & Accessories
    Government & Public Safety
    HVAC
    Hydraulics & Pneumatics
    Lighting & Lasers
    Industrial Automation, Control
    Manuals, Books
    Forklifts & Material Handling
    Painting Equipment & Supplies
    Motors, Transmissions
    Professional Tools & Hardware
    Pumps & Plumbing
    Pumps
    Safety & Security
    Wholesale Lots
    Other
Construction
    Building Materials, Supplies
    Buildings, Modular & Pre-Fab
    Construction Equipment

Printer Supplies & Accessories

Print Heads

Print Heads Article

Line printers, as the name implies, print an entire line of text at a time. Three principal designs existed. In drum printers, a drum carries the entire character set of the printer repeated in each column that is to be printed. In chain printers (also known as train printers), the character set is arranged multiple times around a chain that travels horizontally past the print line. In either case, to print a line, precisely timed hammers strike against the back of the paper at the exact moment that the correct character to be printed is passing in front of the paper. The paper presses forward against a ribbon which then presses against the character form and the impression of the character form is printed onto the paper.

Comb printers represent the third major design. These printers were a hybrid of dot matrix printing and line printing. In these printers, a comb of hammers printed a portion of a row of pixels at one time (for example, every eighth pixel). By shifting the comb back and forth slightly, the entire pixel row could be printed (continuing the example, in just eight cycles). The paper then advanced and the next pixel row was printed. Because far less motion was involved than in a conventional dot matrix printer, these printers were very fast compared to dot matrix printers and were competitive in speed with formed-character line printers while also being able to print dot-matrix graphics.

Line printers were the fastest of all impact printers and were used for bulk printing in large computer centres. They were virtually never used with personal computers and have now been replaced by high-speed laser printers.

The legacy of line printers lives on in many computer operating systems, which use the abbreviations "lp", "lpr", or "LPT" to refer to printers. The dot matrix is really slow and it is only for office printers

Print Heads Items

1 2 3

Search:  
HP 14 Printhead : OfficeJet 7130 D135 D125 Printer Refb

$32.10
HP 14 Printhead : OfficeJet 7130 D135 D125 Printer Refb

$32.10
HP 14 Printhead : OfficeJet 7130 D135 D125 Printer Refb

$32.10
HP 14 Printhead : OfficeJet 7130 D135 D125 Printer Refb

$32.10
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
New Okidata 3410 Printhead Pacemark 50090301

$149.95
HP 14 Printhead : OfficeJet 7130 D155 D145 Printer Refb

$32.10
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
#NEW GENUINE HP 10 C4803A HP10 YELLOW INK PRINTHEAD#

$0.99
Ricoh CL3500N Black PCU Model # 402448 Type 165

$1.00
******Zebra 170xiIII Printhead - NEW/OEM******

$549.00
#NEW GENUINE HP 10 C4803A HP10 YELLOW INK PRINTHEAD#

$0.99
HP Designjet 1055 Brand New 80 Magenta Printhead c4822a

$26.00
NEW GENUINE HP 11 C4811A HP11 OEM CYAN PRINTHEAD!

$9.99
Lot of 2 HP #10 Magenta Ink Printheads C4802A OEM NEW!

$3.99
Geniune Zebra Print Head G32432-1M BRAND NEW!

$175.00
Epson 4880 4800 print head new Fits T Jet Blazer

$460.00
HP 14 Printhead : OfficeJet 7130 D155 D145 Printer Refb

$32.10
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
HP 14 Printhead : OfficeJet 7130 7110 7100 Printer Refb

$32.10
BC-11E COLOR PRINTHEAD with BLACK AND COLOR INSTALLED

$12.00
Lot of 2 HP #10 Yellow Ink Printheads C4803A OEM NEW!

$0.99
EASY FIX HP 14 INKJET PRINT HEADS HP OFFICEJET PRINTERS

$5.00
XEROX M Series BLACK and COLOR PRINTHEADS

$30.00
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
Zebra 105SL 32432M Printhead by SSI Resolution 203 NEW

$199.00
#NEW GENUINE HP 11 C4811A HP11 CYAN OEM INK PRINTHEAD#

$9.99
Pitney Bowes E707 G701 Series Postage Meter Print Head

$12.99
hp 10 Magenta Printhead

$0.99
HP Officejet Pro Printhead - Magenta & Cyan

$40.50
NEW GENUINE HP 12 C5024A HP12 OEM CYAN PRINTHEAD !

$9.99
HP 14 Color Printhead Set - Cyan, Magenta, Yellow

$19.99
GENUINE XEROX PHASER 6250 Imaging Unit 108R00591

$102.50
NEW GENUINE ZEBRA THERMAL PRINTHEAD G48000M PLEASE READ

$199.99
HP Designjet 1055 Brand New 80 Cyan Printhead c4821a

$19.99
XEROX M Series COLOR PRINTHEAD P-105

$15.00
Avery Dennison Thermal Print Head KST-106-8MPD1-NZ2 NIB

$19.99
HP 14 Color Printhead OfficeJet 7110 D155 D135 D125 610

$19.95
XEROX M Series BLACK PRINTHEAD P-100

$15.00
HP 14 Color Printhead OfficeJet 7110 D155 D135 D125 610

$19.95
Fix your Print Heads (HP, Canon, Epson, Lexmark)

$2.00
Broken Canon PF-03 printhead

$19.99
NEW GENUINE HP 12 C5026A HP12 OEM YELLOW PRINTHEAD !

$9.99
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
4 HP #11 Ink Printheads Full Set B/C/M/Y GENUINE NEW*

$29.99
2008 SET 8 HP #70 INK CARTRIDGES DESIGNJET Z2100 NEW

$169.00
HP 14 Color Printhead Set - Cyan, Magenta, Yellow

$19.99
HP C4923A HP14 Yellow Printhead Refurbished

$8.99
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
Okidata ML320 320 321 Turbo Printer Printhead 50114601

$24.99
Lot of 2 HP #10 Yellow Ink Printheads C4803A OEM NEW!

$1.99
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
PRINT HEAD TI 810 2217374-0002 Texas Instruments x2

$25.00
#NEW GENUINE HP 11 C4811A HP11 CYAN OEM INK PRINTHEAD#

$9.99
HP 14 Color Printhead OfficeJet D155 D145 D135 D125 610

$19.95
hp 10 Yellow Printhead

$0.99
HP 81 Designjet Magenta Printhead and Cleaner C4952A NR

$24.99
LOT OF two (2) HP 11 Printheads YELLOW MAGENTA

$9.77
HP !! CYAN C4811A Printhead

$7.50
Printhead for Zebra Thermal Printer 170xiIII 46500-1M

$299.00
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
Genuine CANON Printhead QY6-0064 NEW i560 e850 ip3000

$37.70
HP 14 Printhead : OfficeJet 7130 D135 D125 Printer Refb

$32.10
HP 14 Printhead (C4920A) BLACK

$40.00
HP 14 Color Printhead OfficeJet 7130 D145 D135 D125 612

$19.95
Kyocera Printhead KST16812MPL8ZB1 Print Head Printer

$0.99
4 HP #10 Ink Printheads Full Set B/C/M/Y GENUINE NEW

$9.99
#NEW GENUINE HP 10 C4803A HP10 YELLOW INK PRINTHEAD#

$0.99
EPSON Stylus Pro 7600/9600 print head p/n F138050

$280.00
NEW GENUINE HP 12 C5024A HP12 OEM CYAN PRINTHEAD !

$9.99
New Printhead for Zebra Z4M+ Z4M 203dpi

$140.00
LARGE HP #88 ink cartridge BLACK c9396an NEW IN BOX

$21.61
HP Designjet 1055 Brand New 80 Yellow Printhead c4823a

$19.99
HP 14 Color Printhead OfficeJet 7130 D145 D135 D125 612

$19.95
4 New Genuine C4844AN C4836AN C4837AN C4838AN

$9.95
HP 14 Printhead : OfficeJet 7130 D135 D125 Printer Refb

$32.10
HP 14 Printhead : OfficeJet 7130 D135 D125 Printer Refb

$32.10
HP 14 Printhead : OfficeJet 7130 7110 7100 Printer Refb

$32.10
#NEW GENUINE HP 12 C5024A HP12 CYAN OEM INK PRINTHEAD#

$9.99
NEW GENUINE HP 11 C4813A HP11 OEM YELLOW PRINTHEAD!

$9.99
HP 14 Color Printhead OfficeJet D155 D145 D135 D125 610

$19.95
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
HP Designjet 1055 Brand New 80 Magenta Printhead c4822a

$19.99
HP 14 Color Printhead: OfficeJet 7130 7110 7100 Printer

$19.95
HP #80 PRINTHEADS FULL SET NIB DATES 09 DESIGNJET 1000

$190.00
Brother BHPrint Head LF Assy 2

$25.00
HP Designjet 1055 Brand New 80 Yellow Printhead c4823a

$19.99
2009/8 SET 4 NEW HP #80 PRINTHEADS DESIGNJET 1050 1055

$259.00
HP 14 Printhead : OfficeJet 7130 7110 7100 Printer Refb

$32.10
HP 14 Printhead : OfficeJet 7130 D135 D125 Printer Refb

$32.10
#NEW GENUINE HP 12 C5026A HP12 YELLOW INK PRINTHEAD#

$9.99
Canon imagePROGRAF PF-03 Printhead

$400.00
♦♦♦ Xerox Phaser 8400/WorkCentreC2424 New Printhead ♦♦♦

$185.00
HEWC4812aPrinthead #11DesignJet 500/800 24k yld Magenta

$4.90
3 HP 80 Print Head & Cleaners c4823a c4822a c4821a

$69.99
NEW Genuine HP 11 Cyan Ink Printhead C4811A

$14.99