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Image formation system
The image formation system, which serves as the nerve center of the printer, forms a toner
image on paper.
The DC controller controls the image formation system, which consists of units such as the
developing section (four cartridges and the developing disengaging unit), the transfer section
(transfer unit and secondary transfer roller), and the fuser. The DC controller controls the
laser/scanner unit and the high-voltage power supply circuit to form an image on paper
according to the VIDEO signals (VDO, /VDO) upon receipt of a print command from the
formatter.
Figure 5-24. Image formation system and Figure 5-25. Image formation system (signal
paths) illustrate the image formation system.
NOTE
The terms fixing and fuser refer to the same operation (or assembly) and are used
interchangeably in this document. Also, ITB unit and transfer unit refer to the same assembly
and are used interchangeably throughout this document.
Figure 5-24.
Image formation system
146 Chapter 5 Theory of operation ENWW