Xerox Phaser 6600 Service Manual page 53

CTD Sensor Assembly (PL6.1.14)
Includes the CTD Sensor.
• CTD Sensor — The reflective color toner density sensor. Irradiates light from the LED in the sensor
to the intermediate transfer belt, detects the reflected light from the intermediate transfer belt
with the light receiving element, and outputs the electric signal corresponding with the light
intensity. Before the secondary transfer, detects the toner patch density on the intermediate
transfer belt.
Imaging Units Y, M, C, K (PL8.1.2-5)
Consists of the drum to form the static latent image and toner image, and the developer to develop
toner to the drum. Placed in yellow, magenta, cyan, and black color each.
• Drum — Forms the static latent image and the toner image.
• BCR — Bias charging roller — charges the drum.
• Cleaning Roller — Cleans toner on the BCR surface.
• Cleaning Blade — Cleans the remaining toner from the drum after the toner image is transferred
to the sheet.
• Magnet Roller — Contacts the drum and forms the toner image on the drum.
• Auger — Stirs toner.
• Trimmer Rod — Equalizes toner and carriers on the Magnet Roller.
Transfer Belt Assembly (PL6.1.1)
The primary transfer unit that transfers the toner image on the drum surface of each color to the
intermediate transfer belt.
The Transfer Belt Assembly mainly consists of the following components.
• 1st BTR Roller Y/M/C/K — Impresses the positive electric charge on the reverse side of the
intermediate transfer belt in printing, and transfers the toner image formed on the drum to the
intermediate transfer belt.
• Intermediate Transfer Belt — Reduplicates and transfers the toner image formed in the drums of
each color.
• Back Up Roller — Contacts with the Transfer Roller via the intermediate transfer belt in the
secondary transfer, and transfers the toner image on the transfer belt to the sheet.
• Belt Cleaner — After the toner image is transferred on the sheet, cleans the remaining toner in the
intermediate transfer belt.
Transfer Roller Assembly
The Transfer Roller Assembly consists of the following components.
• Transfer Roller — Contacts with the reverse side of the toner transfer face on the sheet, and
transfers the toner image formed in the belt to the sheet.
• Eliminator — Neutralizes the sheet.
Xerox Internal Use Only
General Information
Phaser 6600 and WorkCentre 6605
Service Manual
1-41