2004 Canon iR2270/iR2870/iR3570/iR4570 Service Manual (876 P.)

Canon iR Series technical guide detailing maintenance procedures, parts replacement, and troubleshooting. Complete service documentation for iR2270, iR2870, iR3570, and iR4570 copier models with comprehensive component specifications.

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Document Details

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Document Number / Seller:
23863 / Michael Campbell
File Size:
32.33 MB
File Type:
PDF
Language:
English
Pages:
876
Printable:
Yes
Category:
Printer
Last updated / verified
Jun 25, 2025

Models Covered & Key Technical Specifications

Canon iR2270, iR2870, iR3570, iR4570 Series — 2004 Comprehensive Diagnostic & Technical Reference | iR Series Service Portfolio.

  • Documented Printing Speed: iR2270/iR2870 produce 22–28 ppm (pages per minute) is specified as the primary operational copying velocity Specifications.

  • Technical Reading Resolution: 600 × 600 dpi is designed for the contact image sensor acquisition system establishing maximum image fidelity Sequence.

  • Calibrated Warm-up Time: iR2270/iR2870 models require 30 seconds or less provides a quick operational readiness threshold Performance.

  • Measured Power Consumption: 1350 W or less establishes the maximum electrical demand requirement for full operational mode Threshold.

  • Universal Cassette Capacity: 550 sheets (80 g/m²) determines the standard paper feed volume for continuous copying operations Guidelines.

  • Rated Noise Level: iR2270/iR2870 standby mode operates at 40 dB while 66 dB in operation defines the acoustic output envelope Standards.

Professional Workshop Service Manual & Technical Specifications

Verified Factory Manual: Canon iR2270, iR2870, iR3570, iR4570 Multifunction Printer Service Documentation Engineering-Archive

Unit-Designations: Canon iR2270, iR2870, iR3570, iR4570 (2004 Models) // Technical-Benchmarks: Electrostatic Image Reproduction / Laser Scanning System Logic // Specification-Class: Complete Service and Maintenance Technical Specifications.

Component Value Context
Document Pages 893 total pages Comprehensive coverage across 17 chapters
Reading Technology Contact Image Sensor (CIS) with LED array 600 x 600 dpi resolution documented
Image Formation Photosensitive drum (OPC) with laser exposure Process speed specifications included
Toner System Single-component magnetic toner Capacity and detection methods documented
Fixing Method On-demand film system Temperature and speed control specifications documented

Outlining the operational framework across the machine's construction mechanisms, the document addresses original exposure system operation, covers laser scanning procedures, references image formation processes, examines pickup and feeding controls, and includes fixing assembly specifications. The service manual provides descriptions of all electrical circuits, mechanical assemblies, and system interactions across the four model variants.

Fuel system procedures are documented for the reader unit control mechanisms and sensor integration. Adjustment procedures are detailed for image positioning across cassette feeds, manual entry trays, and duplex processing. Timing procedures are documented for laser synchronization and motor control sequences. Technical notes are provided for electrical component specifications including motors, clutches, solenoids, and printed circuit boards. Quality checks are addressed for image density, toner level detection, and drum surface conditions.

The document structures information through detailed chapters covering system construction, installation procedures, basic operation sequences, main controller functions, original exposure mechanisms, laser exposure technology, image formation processes, pickup and feeding systems, fixing assemblies, external controls, maintenance protocols, adjustment standards, image quality correction, self-diagnosis procedures, service mode operations, and specialized tools. Each chapter includes technical specifications for major components and step-by-step procedures for component identification and parts replacement.

The manual documents torque specifications for assembly fasteners to ensure proper mechanical integration and references electrical connection requirements across printed circuit boards to maintain system reliability.

This 876-page service manual provides extensive technical information for qualified maintenance personnel, covering installation setup, troubleshooting network connections, component replacement procedures, image quality diagnostics, error code interpretation, and scheduled servicing intervals across the Canon iR Series multifunction systems.

FAQ

Determine the **specific** primary charging bias voltage required for operation. keyboard_arrow_down

-450 V to -850 V DC bias must be applied to the primary charging roller during image formation for proper photosensitive drum charging.

What specifications are **designated** for developing system operation? keyboard_arrow_down

800 Vp-p AC bias and -450 V to -650 V DC bias must be applied to the developing unit while images are being formed, with biases disabled between sheets.

Check the **critical** lubrication point for scanner motor operation. keyboard_arrow_down

Oil-type bearing lubrication is required for the DC brushless scanner motor, which operates at 16000 rpm for iR2270/iR2870 models and 27000 rpm/16000 rpm for iR3570/iR4570 models.

What does the **required** APVC correction procedure accomplish? keyboard_arrow_down

500-sheet interval APVC control automatically corrects the primary charging application voltage to suit photosensitive drum film thickness, with forced correction performed when drum units are replaced per installation manual section 2.2.8.

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Reviews (3)

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New
This manual provides an in-depth look at the Canon iR Series that I haven’t found elsewhere. The technical theory section is very informative. Plus, customer support was professional and responded quickly to my inquiries about the manual. Highly recommended!
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This service manual is a must-have for anyone working with Canon iR printers. The installation instructions are clear and detailed, making setup a breeze. I had a few questions and reached out for support; their response was incredibly quick and helpful!
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The maintenance procedures outlined in this guide have really helped me keep our printers running smoothly. The troubleshooting techniques are especially useful. I also appreciated the smooth download process; the email with the link arrived immediately after purchase.