Ricoh SAVIN D0AP Service Manual page 639

Print Duty Fan Control
While the image creation thermistor (TH5) installed in the machine monitors temperature,
development duty control is conducted as shown below.
Status Normal
printing
Temperature (T) T<40°C
Machine Normal
operation printing
Fans operation Print
Mode
>Cancellation -
condition
STEP1 Image creation thermistor (TH5) detects 40°C (104°F).
Until the temperature of the development unit drops 1°C, the operation will pause every 30 sec.,
print 14 sheets, and then repeat.
While printing is halted, a message is displayed on the operation panel.
The machine shifts to normal operation after the temperature drops by 1°C.
STEP 2: Image creation thermistor (TH5) detects 41°C (106°F).
Printing halts. Operation shifts to STEP 1 above once temperature drop 1°C.
A message is displayed on the operation panel while the machine is halted.
This message remains displayed along with a counter showing how much time remains until
printing resumes.
If the machine frequently shifts to STEP 2, the filters may be clogged. Check the condition of the
filters.
SM
STEP1
40°C≤T<41°C
Pause every 30 sec., print 14
sheets.
All fans: High rotate (100%)
The machine shifts to normal
operation when the thermistor
detects less than 39°C.
7-77
Air Flows (Fan Control)
STEP2
41°C≤T
Printing halts.
All fans: High rotate (100%)
The machine shifts to
STEP1 when the thermistor
detects less than 40°C.
D0AP/D0C4/D0C5/D0C6/M0BQ/M0D1