2009 Lexmark C734n, C734dn, C734dnw, C736n, C736dn, C736dnw Service Manual

Wiring diagrams, specifications, and repair sequences for print engine, scanner module, paper path, and electrical systems. PN C4256-90954

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Lexmark Models Covered & Key Technical Specifications

Models: Lexmark C734n, Lexmark C734dn, Lexmark C734dnw, Lexmark C736n, Lexmark C736dn, Lexmark CS736dn
Sub-models / Variants: Duplex and network, Network, Duplex, network, and wireless
Build Years: 2009
Serial Numbers: 5026
Technical Data:

  • Weight (basic printer): 25.7 kg (56.7 lbs)
  • Operating Temperature: 15.6°C to 32.2°C (60°F to 90°F)
  • Print Resolution: 4800CQ, 1200 x 1200 dpi
  • Maximum Memory Capacity: 1280 MB
  • Typical Electricity Consumption (TEC): 4.61–4.69 kWh/week
  • Standard Input Capacity: 650 sheets
Technical Specifications
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Document Number / Seller:
28138 / Joshua Robinson
File Size:
15.99 MB
File Type:
PDF
Language:
English
Pages:
436
Printable:
Yes
Category:
Copier
Last updated / verified
Jun 3, 2025

Lexmark Manual Features & Content Preview

Lexmark C734 and C736 Printer Service Manual

  • Covers 2009 Lexmark C734 and C736 series color laser printers, including network, duplex, and wireless configurations
  • Official Lexmark publication P/N 12G9820, revision dated June 8, 2009
  • Contains 436 pages of technical specifications, diagnostic flow charts, and component removal procedures
  • OCR text layer lets you jump to a torque spec by keyword
  • No DRM restrictions on the print function
  • This 2009 edition documents the complete 5026-series technical architecture including the specific sensor-feedback logic used in the C734 and C736 lineups

Technical Documentation Scope

The Lexmark C734 and C736 service manual provides deep technical insights into the 5026 printer family. This publication details the diagnostic information required to isolate failing field replaceable units (FRUs) across multiple configurations, including the C734n, C734dn, C734dnw, C736n, C736dn, and CS736dn. The manual is divided into chapters covering printer specifications, diagnostic aids for power-on self-test (POST) failures, repair procedures, and comprehensive parts catalog assembly diagrams for what an OEM service publication covers.

Specification and Diagnostic Preview

Technical data includes operating environmental requirements, with ambient temperature ranges specified between 15.6°C and 32.2°C. Power consumption specifications for the C734 and C736 are detailed in the electrical section, listing maximum average current during printing as 7.5 A for 110–127 V models. Tolerance data for clearances and paper handling capacities up to 4300 sheets for the C736 are documented to assist with maintenance troubleshooting. The manual documents error code patterns for sensors, motors, and fuser assemblies, providing clear diagnostic paths to verify continuity and component integrity. An official 436-page Lexmark OEM service manual covering the 2009 C734 and C736 series, documenting maintenance, electrical, and mechanical specifications for the 5026 model build.

Manual FAQ, Purchase & Download Details

What publication version and edition date are associated with this service manual for the 5026 series printers? keyboard_arrow_down

Document is identified as the Lexmark C734 and C736 Service Manual, revision date June 8, 2009, with publication part number 12G9820.

Is there information regarding paper capacities or tray configurations in the general information section? keyboard_arrow_down

Manual includes detailed specification tables that outline input and output capacities for the printer and optional media trays. It also contains descriptions of the high-capacity input tray and standard 550-sheet drawer configurations.

Are there diagrams or parts illustrations provided for the various printer assemblies? keyboard_arrow_down

Parts catalog chapter contains comprehensive exploded views and illustrations for each assembly, including the covers, front door, and optional trays. These illustrations are categorized by assembly number to assist with identification of individual field replaceable units. Detailed component breakdowns are included to show the arrangement of parts within the system.

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