186 Chapter 2

Laser/scanner assembly (Y/M)

Before proceeding, remove the following components:

Toner collection unit. See Toner-collection unit on page 76.

Intermediate transfer belt (ITB). See Intermediate transfer belt (ITB) on page 92.

Upper-left cover. See Upper-left cover on page 96.

Power-supply cover. See Power-supply cover on page 98.

Left cover. See Left cover on page 99.

Front-top cover. See Front-top cover on page 100.

Rear-top cover. See Rear-top cover on page 102.

Rear cover. See Rear cover on page 112.

Cartridge fan and environmental sensor. See Cartridge fan and environmental sensor on page 137.

Toner collection sensor and scanner-thermistor assembly. See Toner-collection sensor and scanner-thermistor assembly on page 141.

Interconnect board (ICB). See Interconnect board (ICB) on page 153.

Low-voltage power supply. See Low-voltage power supply (LVPS) on page 157.

High-voltage power supply lower. See High-voltage power supply lower (HVPS-D) on page 163.

Exhaust fan and fan duct. See Exhaust fan and fan duct on page 169.

Removal and replacement

ENWW

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HP Enterprise CC490A manual Laser/scanner assembly Y/M, Before proceeding, remove the following components