Specifications

16-7. Prevention of Low Image Density on Copy

During conditions of high humidity when the paper is damp, charges would

tend to flow from the Image Transfer Corona through the paper and guide

plates to the ground. This results in low image density on the copies.

To prevent this from occurring, a plastic spacer is installed at the pivot of the

Right Door and where the Transport/Synchronizing Rollers Unit is fitted.

If, however, the resistance with the ground is made infinity, the guide plates

would build up charges and a spark can occur with other guide plates,

resulting in a malfunction. To prevent this, an 82-megohm resistor and a

1-kV varistor are connected to the guide plates. The Manual Bypass, Vertical

Transport, Transport/Synchronizing Roller, and Pre-Image Transfer Guide

Plates are connected by flat springs and a wire.

A 1-kV varistor is connected to the Multi Bypass Guide Plate to protect the

CPU from noise when the right door is opened.

Synchronizing Rollers

Resistor

Vertical Transport

Guide Plate

Multi Bypass

Feed/Separator

Rolls

Transport Rollers

Transport/Synchronizing Rollers Unit

Wire

Varistor

Flat Spring

M-142