About Canon LBP-3250 Service Manual
The following rules apply throughout Canon LBP-3250 Service Manual:
- Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with reference to the timing of operation. In the diagrams, represents the path of mechanical drive; where a signal name accompanies the symbol , the arrow indicates the direction of the electric signal. The expression "turn on the power" means flipping on the power switch, closing the front door, and closing the delivery unit door, which results in supplying the machine with power.
- In the digital circuits, '1'is used to indicate that the voltage level of a given signal is "High", while '0' is used to indicate "Low".(The voltage value, however, differs from circuit to circuit.) In addition, the asterisk (*) as in "DRMD*" indicates that the DRMD signal goes on when '0'. In practically all cases, the internal mechanisms of a microprocessor cannot be checked in the field. Therefore, the operations of the microprocessors used in the machines are not discussed: they are explained in terms of from sensors to the input of the DC controller PCB and from the output of the DC controller PCB to the loads. The descriptions in this Service Manual are subject to change without notice for product improvement or other purposes, and major changes will be communicated in the form of Service Information bulletins. All service persons are expected to have a good understanding of the contents of this Service Manual and all relevant Service Information bulletins and be able to identify and isolate faults in the machine."
Canon LBP-3250 Table of Contents
1.2 Product Specifications
1.3 Name of Parts
1.3.1 External View
1.3.2 Cross Section
1.4 Using the Machine
1.4.1 Control Panel
1.5.1 Safety of Laser Light
1.5.2 CDRH Regulations
1.5.3 Safety of Toner
1.5.4 Handling the Laser Unit
1.5.5 Points to Note at Disassembly/Assembly Work
Canon LBP-3250 Features
- Small-size, high-speed monochrome printer This equipment has a compact body that realizes high-speed print of 23 ppm.
- Reduction in standby time and energy consumption This equipment employs on-demand fixing where the heater activates only during printing, resulting in a reduction in standby time and energy consumption on this mode.
- Realization of noise reduction and stable image quality This equipment employs a belt drive method for transmitting the drive of the main motor. This enables lower noise and more stable image quality compared to the conventional gear drive method. (See MEMO)
- Improved Usability In this equipment, the power switch is situated at the front of the host machine, and maintenance (jam removal, replacing the cartridge) can be performed by accessing one point of the delivery tray.
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