Ricoh Aficio FT4027, Service Manual

Page: 73 / 685

Mode No. Function Settings
2-206-001
to
2-206-002
Development
Bias Display † Displays the development bias.
SP2-206-001: Development
bias used
for copying.
SP2-206-002: Development bias used
for making V
SP
sensor
patterns.
The first two digits are displayed in the
reduce/enlarge indicator. The actual value is:
displayed value x (–10) V. All process control
corrections are included in the displayed value.
2-207 Forced Toner
Supply (shown
as "Compulsory
Toner Supply"
on the display) Forces the toner bottle to supply toner to the
toner supply unit for 30 seconds.
This mode is started by pressing the "Start"
key and stops automatically after about 30
seconds. Press the"Clear Modes" key to
interrupt if necessary. This SP mode must be
performed twice when installing the machine
and when installing a new toner supply unit.
2-208-001 Toner Supply
Mode Selection
†
Selects the toner supply mode.
In many cases, the machine will change the
toner supply mode automatically if either the
TD or ID sensor become unreliable. However,
sometimes it does not.
If the TD sensor fails, you can select fixed
supply mode as a temporary measure.
If the ID sensor fails, you can select TD
sensor supply mode.
After repairing the machine, check whether
the toner supply mode has gone back to the
detect supply mode. 1: TD sensor
supply mode
2: Fixed supply
mode
3: Detect
supply mode
2-208-002 Toner Supply
Ratio
(TD Sensor
Supply Mode) †
Selects the toner supply ratio for TD sensor
supply mode.
For example, if the user normally makes
copies of originals that are about 7% black,
select the 7% setting for best results. 1: 7%
2: 15%
3: 30%
4: 60%
2-208-003 Toner Supply
Ratio
(Fixed Supply
Mode) †
Selects the toner supply ratio for Fixed Supply
Mode.
For example, if the user normally makes
copies of originals that are about 6% black,
select the 6% setting for best results. 1: 2%
2: 4%
3: 6%
4: 11%
FT5535/4527/4522 4-22 FSM