Oki C3200n, Service Manual

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42615101TH Rev.8
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Oki Data CONFIDENTIAL
2.2 Printing Processes
Paper fed from a tray 1 or 2 is forwarded by Hopping roller, Registration Roller L and Feed roller.
When feeding paper from a multiple tray, it is forwarded by a MPT Hopping roller and Registration
Roller U. Then, the paper is moved onto a transfer belt and, through K, Y, M and C electrophotographic
processes performed taking their turns, a yet-to-be-fused toner image is produced on the paper.
While the paper passes through a fuser unit, heat and pressure fuses the toner to the paper. After
the fusing process, the paper is ejected to a face-up or face-down stacker, whichever is selected
according to whether the face-up stacker is opened.
These operations are performed in single-side printing. Following are operations in two-side
(duplex) printing.
In duplex printing, paper passed through a fuser unit after it is first printed on the back is fed into
a duplex unit via a dup-in separator. Reversing roller’s reversing operation sends the paper via a
paper reversing path into the duplex unit. After Feed rollers on a paper path in the duplex unit pass
the paper through the unit, the paper is fed via a paper feeding path routed from the unit. Then,
the paper is forwarded to the same route from the tray. After that, the same operation as that
performed after the paper moving by the first registration roller L in single-side printing using tray
feeding is performed.
MPT
Reversing Roller
Dup-In Separator
Face-up Stacker
Face-down Stacker
Heat Roller
Halogen Lamp
Backup Roller
Transfer Belt
Registration Roller U
Registration Roller L
MPT Hopping Roller
Feed Roller
Sub Roller
Sub Roller
Hopping Roller
Hopping Roller
Feed Rollers
Paper Reversing Path