B245/B276/B277/B268/B269 Service Manual 18-Jan-06
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Scanning
Overview
1. Exposure Lamp
2. 1st Scanner
3. Exposure Glass
4. Lens Block
5. Scanner Motor
6. Original Length Sensor
7. Original Width Sensors
8. Scanner HP Sensor
The original is illuminated by the exposure lamp (a xenon lamp). The image is reflected onto
a CCD (charge coupled device) on the lens block via the 1st, 2nd, and 3rd mirrors, and
through the lens on the lens block.
The 1st scanner consists of the exposure lamp, a reflector, and the 1st mirror.
A lamp stabilizer energizes the exposure lamp. The light reflected by the reflector is of almost
equal intensity, to reduce shadows on pasted originals.
An optics anti-condensation heater is available as an option. It can be installed on the left
side of the scanner. It turns on whenever the power cord is plugged in.
Lamp Stabilizer Fuse
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