Develop QC 2235 Plus Service Manual page 62

Transfer Corona section
Key Name
[1] Paper Separator Claws
[2] 1st Image Transfer Roller/C
[3] Lifting Mylar
[4] 1st Image Transfer Roller/Bk
[5] Transfer Belt Drive Roller
[6] Retraction Roller
[7] Waste Toner Conveying Screw
[8] Cleaning Brush
[9] Tension Roller
[10] 1st Image Transfer Roller/Y
[11] 1st Image Transfer Roller/M
[12] Transfer Belt
[13] Pressure Cam
1st Image Transfer Retraction Position
[14]
Sensor (PC12)
1st Image Transfer Pressure/Retraction
[15]
Motor (M11)
QC 2235plus Theory of Operation Ver.1.0 Feb. 2004
Function/System
• Separate paper
• Transfers the toner image from the PC Drum/C onto
the Transfer Belt (1st image transfer)
• Image Transfer Roller system
• Constant voltage control
• Forms an appropriate contacting surface between
the PC Drum and the Transfer Belt at the 1st Image
Transfer Roller/Bk portion
• Transfers the toner image from the PC Drum/Bk
onto the Transfer Belt (1st image transfer)
• Image Transfer Roller system
• Constant voltage control
• Driven by the Main Motor
• Changes the Transfer Belt face between the color
mode and monochrome mode
• Conveys waste toner from the Belt Cleaning Sec-
tion to the Toner Collecting Section
• Screw type
• Whisks the surface of the Transfer Belt clean of
toner
• Prevents the Transfer Belt from slacking
• Transfers the toner image from the PC Drum/Y onto
the Transfer Belt (1st image transfer)
• Image Transfer Roller system
• Constant voltage control
• Transfers the toner image from the PC Drum/M
onto the Transfer Belt (1st image transfer)
• Image Transfer Roller system
• Constant voltage control
• The belt, on which toner images are formed by the
1st Image Transfer Rollers in the order of Y, M, C,
and Bk.
• Changes the position of the 1st Image Transfer
Roller/Y, M, C, Bk either in the pressed or retracted
position
• Detects the 1st Image Transfer Roller at its
retracted position
• Provides drive for pressure and retraction operation
of the 1st Image Transfer Roller/Y, M, C, Bk
• Two-phase stepping motor
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