Ricoh B291 Service Manual page 274

SERVICE PROGRAM MODE TABLES
2914* Process Control Setting
2914 1* C-alpha
Adjusts the charge roller voltage used when paper with a small width is fed from
the by-pass tray. The paper width below which the correction starts depends on
the value of SP2-309-1.
Use this SP when an image problem (such as white spots at the center of black
dots or breaks in thin black lines) occurs when paper with a small width is fed from
the by-pass feed tray.
2914 2* C-beta
Adjusts the charge roller voltage used when paper with a small width is fed from
the by-pass tray. The paper width below which the correction starts depends on
the value of SP2-309-2.
Use this SP when an image problem (see 2-914-1) occurs when paper with a
small width is fed from the by-pass feed tray.
2914 3* B-gamma
Adjusts the development bias used when paper with a small width is fed from the
by-pass tray. The paper width below which the correction starts depends on the
value of SP2-309-1.
Use this SP when an image problem (see 2-914-1) occurs when paper with a
small width is fed from the by-pass feed tray.
2914 4* B-delta
Adjusts the development bias used when paper with a small width is fed from the
by-pass tray. The paper width below which the correction starts depends on the
value of SP2-309-2.
Use this SP when an image problem (see 2-914-1) occurs when paper with a
small width is fed from the by-pass feed tray.
LD Off Check
2920
Toner Overflow Sensor
2960*
Selects whether or not the toner overflow sensor is activated.
Transfer Cleaning Blade Forming
2964*
Applies a pattern of toner to the transfer belt at a defined interval between sheets
on the transfer belt in order to reduce friction between the belt surface and the
cleaning blade.
Under conditions of high temperature and high humidity, the density control
feature may reduce the amount of toner, which also reduces the amount of toner
on the surface of the transfer belt. With less toner on the belt, the friction between
the belt and the blade increases, and could cause the blade to bend or scour the
surface of the belt.
B291/B295/B296/B297
CÓPIA NÃO CONTROLADA
[0 ~ 400 / 150 / 10V step]
[0 ~ 400 / 0 / 10V step]
[0 ~ 300 / 200 / 10V step]
[0 ~ 300 / 50 / 10V step]
DFU
[0 = No, 1 = Yes]
[0 ~ 30/ 0 / 1 sheets]
5-14
CÓPIA NÃO CONTROLADA
SM