Specifications

C-2
PagePro25
1-1. General Description of Each Section
(1) Paper Feed Section
Paper is fed from either the tray 1 (1st paper cassette) or tray 2 (2nd paper cassette). When the printer receives a print
command, the paper take-up solenoid turns ON and a sheet of paper is fed by the paper take-up roller in the 1st paper
cassette.
The synchronizing roller sensor (PC2) detects the fed paper and the paper is fed to the synchronizing roller for printing.
Optional cassettes:
When optional trays (tray 3 to 5), LCC, or manual unit is installed, paper can be fed from respective paper sources.
(2) Print Head Unit (Exposure Section)
The laser diode in the print head unit emits a laser beam corresponding to the print data. The laser beam falls on the
rotating heptagonal polygon mirror to produce a scanning beam, producing an electrostatic latent image on the surface of
the PC drum in the imaging cartridge.
(3) Imaging Cartridge
The imaging cartridge consists of the charging section and development section. The moving parts of the imaging car-
tridge are driven by the I/C drive motor (M1). In the development section, toner is fed to the electrostatic latent image
formed on the surface of the PC drum to produce a visible toner image on the PC drum.
(4) Transfer Section
The transfer section transfers the toner image on the surface of the PC drum onto the paper.
(5) Fusing Section
Using a heated roller, the fusing section permanently fixes the toner image onto the paper. The fusing temperature is con-
trolled by using a heat sensitive element (thermistor) attached to the upper fusing roller.
(6) Paper Exit Section
The paper which has passed the fusing section is ejected to the top of the printer with the paper exit roller. The paper exit
sensor (PC3) senses the ejection of the paper.
When the optional manual unit and optional duplex unit are installed:
For duplex printing, the trailing edge of the printed paper is drawn inside the duplex unit by the switch back motor in the
duplex unit. Then, the paper is fed to the manual unit by the transport motor in the duplex unit and waits for the 2nd print
command.