Ricoh B291 Service Manual page 264

SERVICE PROGRAM MODE TABLES
1103* Fusing Idling
Switches fusing idling on/off. When on, printing will not start until enough time has
elapsed so the hot roller can reach optimum temperature. This ensures even heat
on the hot roller.
Switch on if fusing on the 1st and 2nd copies is incomplete (this may occur if the
room is cold.) You must switch SP1103-1 ON before you set the fusing interval
with SP1103-2.
1103 1* Enable Fusing Idling
1103 2* Fusing Idling Interval
1103 3* Fusing Pre-Rotation
1104* Fusing Temperature Control
Selects the fusing temperature control method. After changing this setting, be sure
the power the machine off and on again with the main power switch to enable the
new setting.
[0~1 / 0 / 1]
0: Normal (ON/OFF control). Allows full application from ac power supply to bring
the hot roller up to the target fusing temperature then shuts off. Determines the
on time from the present temperature (detected by the thermistor on the hot
roller) and the temperature of 1 cycle before.
1: Phase (hysterisis) control. Sets the upper and lower limits for the temperature;
at the lower temperature the fusing lamp is on and at the higher temperature
the fusing lamp is off.
Change this setting to "0" only if the user has excessive electrical noise or
interference on the power supply line. Such interference can cause voltage to drop
when power is applied using the ON/OFF control method.
Interference can be caused by the general poor quality of the power supply lines,
or if the machine is sharing a power supply with other electrical devices such as
fluorescent lights. Before changing this setting, make sure that the machine is
connected to a power supply not shared by other electrical equipment.
Note: Selecting Phase control ("1") could cause the fusing temperature control
board to emit low pitched noise.
B291/B295/B296/B297
CÓPIA NÃO CONTROLADA
0 = Off, 1 = On
[0 ~ 60 sec. / 30 sec. / 1 sec.]
Sets the machine to fusing idling only for 5 sec. for every
job (when the original is set on the ARDF, when the
ARDF cover is opened, etc.) and the fusing unit has
reached the reload temperature (optimum temperature
for operation).
0: Off. No 5 sec. idling done before a job.
1: On. 5 sec. idling done before every job.
Note
• The pre-fusing idling set with SP5959 executes after
the 5 sec. idling selected with this SP is finished.
• The idling stops if a new job is received before the
idling completes.
5-4
CÓPIA NÃO CONTROLADA
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