Ricoh MP 402SPF Service Manual

7.Detailed Descriptions
333
Image Fusing
Overview
1. Fusing exit roller
2. Hot roller strippers
3. Thermostat
4. Hot roller
5. Fusing lamp
6. Thermistor (Edge/Center)
7. Fusing entrance guide
8. Fusing pressure roller
Details
Fusing Drive
Fusing Method
A certain temperature and pressure are applied to the paper fed from the transfer unit to fuse the toner to the paper.
A contact thermistor is mounted on the center of the hot roller to detect the temperature and turn the fusing lamp on and
off. To prevent overheating, a thermostat is mounted at the center and a contact thermistor is mounted at one of the
ends.
Fusing Pressure, Separation, Exit
Pressure is applied at all times to the hot roller and fusing pressure roller by springs.
The fused paper is separated from the hot roller by the hot roller strippers, and then delivered to the paper exit.
Fusing Drive
The main motor drives the fusing unit (hot roller and fusing exit roller) through a gear train.

Ricoh MP 402SPF Specifications

General

Print Technology	Laser
Functions	Print, Copy, Scan, Fax
Maximum Print Resolution	1200 x 1200 dpi
Maximum Paper Capacity	1, 600 sheets
Duplex Printing	Yes
Scan Resolution	600 x 600 dpi
Fax Capability	Yes
Maximum Paper Size	A4
Warm-up Time	21 seconds
Memory (RAM)	2 GB
Fax Transmission Speed	33.6 Kbps
Copy Resolution	600 x 600 dpi
Operating System Compatibility	Windows, Mac OS, Linux
Connectivity	USB, Ethernet, Wi-Fi
Control Panel	Touchscreen
Mobile Printing	Yes
Hard Disk Drive	320 GB (Optional)
Network Connectivity	Ethernet
Print Speed	Up to 42 ppm (Letter)
Copy Speed	Up to 42 cpm (Letter)