Canon Laser Shot LBP-5100, Service Manual

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Chapter 2
2-17
presence (color displacement pattern) and the absence (ETB) of toner.
2) The DC controlled PCB checks the location of the detection pattern with reference to the timing at which the intensity of reflected light changes.
F-2-21
If any of the following errors occurs in the course of color displacement detection, the DC controller will indicate the fact in the status window. The presence of an
error causes the use of the default value as the color displacement value:
- E194 (none of the patches of the color displacement pattern has been detected)
- CPR sensor detection error (the result of measurement is outside a specific range)
2.4.4 Toner Cartridge
2.4.4.1 Outline
0010-7902
LBP5000 / LBP5100
The cartridge is equipped with a mechanism used to form a visible image on the surface of the photosensitive drum using toner. Such an image may be any of 4
colors (magenta, cyan, yellow, black), and all of them have the same construction.
Color misregistration pattern images
Light receiver (PC)
Light emitter (PT)
ETB
Direction of
belt rotation
SR11
SR10