1999 Canon GP405/335 Service Manual
Technical reference for Canon GP405/335 copier systems covering diagnostics, repair procedures, and maintenance specifications. Complete documentation for service technicians with detailed assembly instructions.
Canon Models Covered & Key Technical Specifications
Models: Canon GP405, Canon GP335
Sub-models / Variants: 405, 335, 400, 300
Model Years: 1999
Serial Numbers: 400E NNUxxxxx, 400S NNVxxxxx, 300E NNXxxxxx, 300S NNYxxxxx, 405 PNYxxxxx, 335 PNZxxxxx, 405 PNWxxxxx, 335 PNXxxxxx, 405 QNYxxxxx, 335 QNZxxxxx, 405 RNXxxxxx, 335 RNYxxxxx, 405 SNYxxxxx, 335 SNZxxxxx, 405 TNYxxxxx, 335 TNZxxxxx, 405 UNYxxxxx, 335 UNZxxxxx, A4 ZSKxxxxx, LTR ZSLxxxxx
Technical Data:
- Copy speed: 40 ppm (GP405/400), 33 ppm (GP335/330)
- Resolution: 600 x 600 dpi (reading), 1200-equivalent x 600 dpi (writing)
- Gradation: 256 levels
- Wait time (20°C): 77 seconds or less
- Power consumption (Copying): 910 W
- Weight: 97.5 kg or less (with DADF-A1)
- Dimensions: 585 mm (W) x 720 mm (D) x 538 mm (H)
Canon Manual Features & Content Preview
Technical Scope and Features
- Covers the 1999 Canon GP405 and GP335 multi-function copiers (40 ppm and 33 ppm variants, standard 32MB image memory).
- Official OEM publication (FY8-13FV-000, January 1999 Revision 0).
- Contains 682 pages of electrical pinouts, system timing charts, exploded component views, and troubleshooting tables.
- Available as an instant download right after checkout.
- No DRM restrictions on printing, so you can take hard copies straight to the workbench.
- Acts as the primary technical reference for the launch build, unlocking proprietary diagnostic service modes unavailable in standard operator guides.
Documented Systems and Theory
Core System Architecture
This manual maps out the seven primary systems of the GP405 and GP335, giving you a clear view of the original exposure and printer components. It breaks down the complex electrical circuitry to help speed up your bench diagnostics. You get a direct, detailed look at the image processor PCB, composite power supply, and DC controller PCB. The guide also covers crucial timing sequences for direct and memory-based copying, showing exactly how the laser exposure system, developing assemblies, and sheet feeding mechanisms interact during a run. Since this manual is an instant download, you can pull up these critical schematics on your tablet or laptop right at the machine.
Technical Specifications
Need precise parameters for field maintenance? The manual lists them all. It covers the strict 7.5–32.5°C operating environment limits and the 910W active power draw. You will find deep technical data on the laser exposure system, including the 1200-equivalent x 600 dpi output resolution and the auto density adjustment (AE) logic. Operation sequence charts specify a 170°C fixing unit temperature for the upper roller. Working on commercial copiers involves high voltage and complex moving parts, so always ensure you have the proper technical qualifications and follow standard shop safety practices before diving into the machine. For more general context on what an OEM service publication covers, you can reference standard technical documentation structures.
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