Detect Supply Mode - Ricoh B286 Service Manual

Development
In fixed supply mode, the machine supplies a set quantity of toner per page.
After the technician repairs the machine, the machine must be put back in detect supply
mode with SP 2208-3.

Detect Supply Mode

• Main Table -
The machine uses this table from the start of the page until the length of the printed page
gets to 1189 mm (46.8").
The machine uses these two parameters to control the rate of toner supply:
! Vsg/Vsp
The toner supply level set with SP2208-1
!
Vsp/Vsg
Less than 10%
10% to 12%
More than 12%
Toner Near-End
• Length Table -
If the page becomes longer than 1189 mm (46.8"), the machine changes to the Length
Table for the remaining part of the page.
But, if no toner was supplied before the start of the copy job, the quantity of toner was
sufficient at that time. Because of this, the machine does not change to the Length Table.
The Length Table ignores the Vsp/Vsg ratio. Toner is supplied at a set rate. This rate is
controlled by the toner supply level set with SP 2208-1.
Length Table
B286/B289
Toner Supply Level (SP 2208 001)
L M
None None
15% 20%
40% 50%
100% 100%
6-40
H HH
None None
30% 40%
60% 70%
100% 100%
SM