Product spec and feature
2-22
8) LSU
LSU consists of LD(Laser Diode) and polygon motor control. When the controller generate the printing signal
LD will turn on and Polygon motor starts. If the receiving part in LSU detect the beam and then Hsync is
generated. When the rotation of polygon motor is steady, it is time of LSU ready status for printing. If either
of two condition is not satisfied, LSU error is expected.
Trouble
Failure Analysis
Polygon Motor Error
No steady rotation of Polygon Motor
Hsync Error
In spite of steady rotation of Polygon Motor,No the generation of the
Hsync signal
9) Main Drive Unit
This motor drives, by way of a gearbox, the Toner Cartridge, PTB unit, feeder unit, fuser unit.
> Spec.
* Power : 20W Max (24V)
* Drives : Toner Cartridge, PTB unit, Fuser, Feeder
10) DEVE Drive Unit
This motor drives, by way of a gearbox, the toner cartridges and PTB cleaning cam.
> Spec.
* Power : 20W Max (24V)
* Drives : DEV (4 Color)/PTB Cleaning)
11) SMPS (Switching Mode Power Supply)
This power supply uses the AC supply voltage to generate the DC voltages used by the system.
The SMPS has 5 output channels (+3.3V, +5V, +24V).
Summary of Contents for 2145cn
Page 1: ... 6HUYLFH 0DQXDO 10 Mar 2009 ...
Page 6: ......
Page 64: ...Disassembly and Reassembly 3 17 3 3 15 Pick up roller 1 Remove the Pick up roller ...
Page 81: ...Alignment and Troubleshooting 4 17 2 3 1 4 ...
Page 151: ...5 11 5 4 MP Tray 0 1 5 6 7 2 3 4 8 Exploded View and Parts list ...
Page 155: ...5 15 5 6 Reverse Unit 0 2 1 3 4 5 Exploded View and Parts list ...
Page 157: ...5 17 5 7 Top Cover 0 1 7 5 6 5 6 11 11 2 4 3 2 4 3 9 9 10 Exploded View and Parts list ...
Page 161: ...5 21 5 9 Reverse Drive 0 1 11 2 3 4 4 4 4 4 5 6 7 8 9 10 Exploded View and Parts list ...
Page 165: ...5 25 5 11 Feed Drive 0 6 5 1 2 3 4 Exploded View and Parts list ...