Canon PC-D320/D340 / FAX-L400 Service Manual (214 P.)

Technical Scope and Features for Canon PC-D320, PC-D340, and FAX-L400

• Built for owners and workshops servicing the 2003 Canon PC-D320, PC-D340, and FAX-L400 laser multifunction systems
• Official Canon publication HY8-10AX-000, first edition January 2003
• Documents the complete electronic architecture including SCNT, ECNT, OPCNT, NCU, and USB-MJB board layouts
• Downloads to your account within seconds of checkout
• Page spreads stay legible when printed at original size
• OCR text layer lets you jump to a torque spec by keyword
• This 214-page first edition serves as the foundational reference for the H12-series launch build, documenting all printer-engine, scanner, and communication-interface specifications

Manual Content Summary

This publication provides detailed technical information for the maintenance of Canon PC-D320, PC-D340, and FAX-L400 multifunction units. The document is organized into five primary chapters, beginning with a general description of machine features, specifications, and external components. A technical reference section follows, detailing component layouts for the printer, scanner, and paper supply subsystems, including printed circuit board schematics and sensor configuration data. Assembly and disassembly instructions offer guidance on component replacement for primary assemblies like the document feed section, recording section, and fixing unit, while highlighting essential safety cautions regarding laser light exposure and high-temperature areas. Maintenance and service sections categorize consumables, periodic replacement parts, and the necessary tools for field adjustment, supported by a troubleshooting index that covers error messages, general printing problems, and scanning malfunctions.

Specification and Data Overview

Technical data provided includes electrical reference values for the USB interface, power consumption ratings, and environmental operational ranges. The manual contains specific service report functions and test mode flowcharts to aid in diagnostic operations. The following data points illustrate the technical depth included for the Canon PC-D320, PC-D340, and FAX-L400:

Printer power consumption is documented at 440 W during active operation. The fixing unit temperature control sequences are explicitly defined for failure detection. The scanner contact sensor is specified with a resolution of 600 dpi for high-quality document digitization. Paper cassette capacity is documented at 250 sheets of 64 g/m² standard paper weight. The how factory workshop documentation is structured ensures technicians have access to verified OEM data for all sub-assemblies. Reference only — always consult a certified technician before performing service on this equipment. A complete 214-page Canon OEM service manual covering the 2003 Canon PC-D320, PC-D340, and FAX-L400, documenting technical theory, disassembly procedures, maintenance schedules, and diagnostic error codes for the H12-series laser printer platform.