Canon LBP2900 series User Manual

HTTP://WWW.FIXCLUB.COM.CN
Contents
Contents
2.1 Functional Configuration ...............................................................................................................................................2-1
2.1.1 Outline.......................................................................................................................................................................................... 2-1
2.2 Basic Sequense...............................................................................................................................................................2-2
2.2.1 Basic Operation Sequence ........................................................................................................................................................... 2-2
2.2.2 Power-on sequence ...................................................................................................................................................................... 2-2
2.3 LASER EXPOSURE SYSTEM.....................................................................................................................................2-3
2.3.1 Overview/Configuration .............................................................................................................................................................. 2-3
2.3.1.1 Overview .........................................................................................................................................................................................................2-3
2.3.2 Controlling the Laser Activation Timing..................................................................................................................................... 2-3
2.3.2.1 Turning On/Off the Laser................................................................................................................................................................................2-3
2.3.2.2 Horizontal Synchronization Control ...............................................................................................................................................................2-4
2.3.3 Laser Control ............................................................................................................................................................................... 2-4
2.3.3.1 Auto Photo Current Control ............................................................................................................................................................................2-4
2.3.4 Laser Scanner Motor Control....................................................................................................................................................... 2-5
2.3.4.1 Outline.............................................................................................................................................................................................................2-5
2.3.4.2 Scanner Motor Speed Control.........................................................................................................................................................................2-5
2.3.4.3 Detection of a Fault in the Scanner Motor ......................................................................................................................................................2-5
2.4 IMAGE FORMATION SYSTEM.................................................................................................................................2-6
2.4.1 Overview/Configuration .............................................................................................................................................................. 2-6
2.4.1.1 Construction ....................................................................................................................................................................................................2-6
2.4.1.2 Printing Process...............................................................................................................................................................................................2-6
2.4.1.3 Latent Image Formation Block .......................................................................................................................................................................2-7
2.4.1.4 Development Block.........................................................................................................................................................................................2-8
2.4.1.5 Transfer Block.................................................................................................................................................................................................2-9
2.4.1.6 Fixing Block..................................................................................................................................................................................................2-10
2.4.1.7 Drum Cleaning Block ...................................................................................................................................................................................2-11
2.4.2 High-Voltage Control ................................................................................................................................................................ 2-11
2.4.2.1 Outline...........................................................................................................................................................................................................2-11
2.4.2.2 Generation of the Primary Charging Bias .....................................................................................................................................................2-12
2.4.2.3 Generation of the Developing Bias ...............................................................................................................................................................2-12
2.4.2.4 Generation of the Transfer Charging Bias ....................................................................................................................................................2-12
2.4.3 Toner Cartridge.......................................................................................................................................................................... 2-13
2.4.3.1 Checking the Presence/Absence of a Toner Cartridge..................................................................................................................................2-13
2.4.3.2 Checking the Level of Toner.........................................................................................................................................................................2-13
2.5 PICKUP AND FEEDING SYSTEM...........................................................................................................................2-14
2.5.1 Overview/Configuration ............................................................................................................................................................ 2-14
2.5.1.1 Outline...........................................................................................................................................................................................................2-14
2.5.2 Detecting Jams ........................................................................................................................................................................... 2-14
2.5.2.1 Jam Detection Outline...................................................................................................................................................................................2-14
2.5.2.1.1 Outline...................................................................................................................................................................................................2-14
2.5.2.2 Delay Jams ....................................................................................................................................................................................................2-15
2.5.2.2.1 Pickup Delay Jam..................................................................................................................................................................................2-15
2.5.2.2.2 Delivery Delay Jam...............................................................................................................................................................................2-15
2.5.2.3 Stationary Jams .............................................................................................................................................................................................2-15
2.5.2.3.1 Pickup Stationary Jam...........................................................................................................................................................................2-15
2.5.2.3.2 Delivery Stationary Jam ........................................................................................................................................................................2-15
2.5.2.4 Other Jams.....................................................................................................................................................................................................2-15
2.5.2.4.1 Wrapping Jam Around the Fixing Assembly........................................................................................................................................2-15
2.5.2.4.2 Residual Jam at Start-Up.......................................................................................................................................................................2-15
2.5.2.4.3 Door Open Jam......................................................................................................................................................................................2-15
2.5.3 Multi-purpose Pickup................................................................................................................................................................. 2-15
2.5.3.1 Pickup from the Pickup Tray/Manual Feed Tray..........................................................................................................................................2-15
2.6 EXTERNAL AND CONTROLS SYSTEM................................................................................................................2-17

Canon LBP2900 series Specifications

General

Print Technology	Laser
Print Speed	12 ppm (A4)
Paper Input Capacity	150 sheets
Connectivity	USB 2.0
Monthly Duty Cycle	Up to 2, 000 pages
Dimensions	370 x 251 x 217 mm
Weight	5.7 kg
Memory	2 MB
Supported Paper Sizes	A4, A5, B5, LGL, LTR, EXE, envelopes (COM10, Monarch, DL)
Operating System Compatibility	Windows, Mac OS, Linux
First Print Out Time	Approx. 9.3 seconds