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Printek PrintMaster 850si Dot Matrix Printer

Manufacturer: Printek

Part # 90929

Availability: IN STOCK

BRAND NEW 90 days Warranty

REFURBISHED 90 days Warranty

The PrintMaster 850si Dot Matrix Printer, model 90929, with standard Serial/Parallel interfaces is a narrow format dot matrix printer expressly designed for heavy workloads.

Flexible paper feeding from the rear (standard) or bottom (model 852si) makes the printer ideal for applications where space is at a premium. The printer’s high speed, reliable performance and durable construction significantly improve the productivity of narrow format printing applications.

Some of the PrintMaster 850si Dot Matrix Printer features include:

Print Speed and Paper Slew Rate
The PrintMaster 850si has a fast draft of 530 cps and regular draft speed of 400 cps with a paper slew rate up to 12 ips that provides exceptional throughput. Tractor System A rear-feed single tractor is standard. The Model 852si has a bottom-feed tractor, giving you added printing options. A metal pedestal is also available from Printek for
effective use of both tractors.

Demand Tear-Off
All forms are automatically positioned for easy tear-off, thereby saving you time, money and material on all your print jobs.

Fault Recovery
Print jobs can be easily recovered in the event of a fault condition with the PrintMaster 850 Series
page reprint feature.

Flexible Connectivity
Serial and parallel ports, along with popular emulations and bar codes, are all standard. An optional internal
Ethernet interface with unique forms management features is also available.

Easy Setup
Printer configurations can be selected directly through the front panel, remotely through our Remote Printer Setup Software package, or through an optional plug-in module. Parameters for up to 10 form profiles can be stored and recalled at any time.

Ruggedly Built for Reliable Operation
The PrintMaster 850si printer will meet peak printing requirements up to 10,000 pages per month. The printer’s
metal construction helps make it very durable and capable of operating reliably in difficult environments.

Print Modes 850si

  • Fast Draft - 530 cps
  • Draft - 400 cps
  • Fast Draft/High Impact - 250 cps
  • High Impact 200 cps
  • Letter Quality 100 cps
  • Optical Quality 65 cps
  • Graphics 5,000 dps

Character Matrix

  • Fast Draft: 9 x 9 cell
  • Draft: 12 x 9 cell
  • Letter Quality: 24 x 18 cell
  • Optical Quality: 36 x 18 cell


  • 18 wire parallel array

Printhead Adjustment

  • Automatic gap adjustment is standard

Character Sets

  • Fast Draft, Draft and Letter Quality for Epson and  IBM Proprinter
  • Optical Quality for OCR-A and OCR-B

Character Spacing

  • 5, 6, 6.7, 7.5, 8.4, 8.6, 10, 12, 13.3, 15, 16.7, 17.1 and 20 cpi

Line Length

  • 85 characters at 10 cpi. Also software programmable

Line Spacing

  • 6 and 8 lpi

Paper Handling

  • Zero Tear-Off distance
  • Paper out/paper jam detection
  • Fanfold
  • Continuous forms
  • Edge punched

Form Parameters

  • Non-volatile memory for ten forms, each supporting settings for: tractor path, cpi, lpi, form length, left and
    right margins, top and bottom margins, unidirectional printing, slashed or non-slashed zero, language, font,
    high-impact on/off, form name.

Operating Indicators

  • LED indicates Online/Fault/Setup
  • 2 x 16 LCD for form selection
  • On/off line status and error descriptions


  • Cartridge: nylon fabric, mobius loop, approximately 15 million character

Standard Interfaces

  • Parallel: Centronics compatible
  • Serial: RS232, 300 to 9,600 baud

Optional Interface

  • Ethernet
  • Coax/Twinax

Software Controls

  • Emulation choice of Printek, Epson FX, IBM Proprinter, DEC LA120/210, Genicom ANSI (includes 20 popular
    bar codes) or Basic Bar Codes (includes Code 39, 2 of 5,
    Interleaved 2 of 5).

Physical Specifications

  • H x W x D: 7″ x 18.5″ x 17″ (17.8 cm x 47.0 cm x 43.2 cm)
  • Weight 32 lbs. (16.9 Kg)



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