Monochrome Laser Printer

Printer Code : Source Technologies ST9222 MICR
In January 23, 2003 Lexmark announced the release of their T420d and T420dn monochrome laser printers for small and medium-sized businesses. At 22 pages per minute, only 10 seconds to first print, a duty cycle of 50,000 pages per month and standard automatic duplexing, the T420 packed a lot of features for a laser printer under $650 (street price at time of release).

The T420 cartridge is a “clamshell” design, but with a more square shape and a bit smaller than the cylindrical Se, T, T520/522 & T620/622 new style cartridges. A direct contact chip (very similar to E320) is located on the waste bin section and is held in place with one screw, and a unique encoder wheel includes the familiar “Pac-man” gear.

A plastic shipping lock (similar to that on the E320) has a wrap-around foam to protect the drum.

Toner sensing is accomplished through the encoder wheel and chip working together. Testing is in process to determine if the wheel and chip are a matched set.

At present Static Control’s Imaging Labs have seen two versions of the cartridge.
Source Technologies ST9222 MICR
Source Technologies
ST9222 MICR
Code
OEM Yield
Regions
STI-204048 for Source Technologies ST9222 MICR, 7.5k, NA
7500
NA
Cartridge Bags
ZipTop Foil Bag (14" x 18")

Doctor Blade
Replacement Doctor Blade for use in Lexmark Cartridges

Inflatable Bag
360mm x 525mm Black Inflatable Airbag Cartridge Packaging

Miscellaneous
Conductive Cartridge Lubricant
Lint-Free Cleaning Cloth
Cotton Tipped Swab, 6"
Toner Cloths
Toner Pour Spout w/.09 Opening

Parts
Teflon Developer Roller Washer for IBM 4019/39/49

Monochrome Laser Printer
Source Technologies ST9222 Mono Laser MICR Printer
Manufacturer
Source Technologies
Model
ST9222 MICR
Intro Price
0.00
Release Date
Type
Monochrome
Sub Type
Laser Printer
Color FPOT
0.00
Color PPM
0.00
Mono FPOT
0.00
Mono PPM
22.00
Duty Cycle
50000
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