Canon LBP-2000 Service Manual download pdf (Page 74)

2 - 35

CHAPTER 2

The CPU monitors the /BDIN signal coming from the BD PCB to find out whether the scanner

motor is rotating at a specific speed of rotation.

The CPU will identify any of the following conditions to be a scanner unit fault, and will communi-

cate the fact to the video controller and indicate ‘E110’ on the LCD in the control panel.

1. The /BDIN signal is absent for 10 msec continuously when the scanner motor is started up or

turned off.

2. The /BDIN signal is absent within 0.5 sec after the laser is tuned on when the scanner motor

is started up.

3. The rotation of the scanner motor fails to reach 97% of the target rotation 7 sec after the

scanner is started up.

4. The speed of the scanner motor is higher than the target speed for at any print within 20 sec

after the motor is slowed down, as found to be too fast at time of start-up.

5. The cycle of the /BIDN signal deviates more than ±2% for a cumulative period of 10 mm

(equivalent of print length) when image masking is under way or image masking is turned off

while the motor is rotating at a constant speed.

6. The cycle of the /BDIN signal deviates by more than ±2% when image masking is under way

while the motor is rotating at a constant speed.

Download Service Manual And Resetter Printer at http://printer1.blogspot.com

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 221 222

No comments

Canon LBP-2000 Service Manual Page 74