Adjusting The Transfer Bias - Mita DP-2800 Service Manual

5A2

Adjusting the transfer bias

Printing on paper with extra thickness of 91 to 200 g/m
envelopes, etc., tend to result in faint printing because of insufficient penetration of transfer
bias developer at the transfer roller. Whereas, for thin paper types, the regular transfer bias
may be so strong that the paper cannot effectively leave the drum surface after transferring,
causing paper jam.
For the satisfactory transferring process on different paper thickness, the transfer bias is
user-switchable in three degrees between –1.7 and –3.4 kV.
To select the transfer bias for different paper thickness, perform the following steps.
Steps
Press MODE key.
Press key repeatedly until Paper
Normal is displayed.
Press ENTER key. The question mark begins
flashing besides Normal.
Press key. Press ENTER key to select the thick
paper type.
Or, to select the thin paper type to press
Press ENTER to select the thin paper type.
3-16
2
, such as postcards, OHP,
Display
type/
Paper type
Normal
Paper type
Normal ?
Paper type
Thick ?
key.
Paper type
Thin ?