Ricoh C249, Service Manual

Page: 398 / 486

PAPER FEED
C267 6-44 SM
6.7.5 AUTO ADJUSTABLE PRINTING PRESSURE MECHANISM
The printing pressure motor [A], the printing pressure sensor [B], and the printing
pressure springs [C] were added to the press roller to control the image density for
each printing speed or temperature. The printing pressure depends on temperature
and printing speed, as shown in the following table.
NOTE: You can change the print pressure for each of these conditions with SP6-
70 to 87. ( 5.7.1)
Temperature/
Print Speed
Low
(Below 15 degrees)
Normal
(15 to 28 degrees)
High
(28 degrees and
above)
Trial Print Printing Pressure 2 Printing Pressure 2 Printing Pressure 2
1st Print (60 rpm) Printing Pressure 1 Printing Pressure 1 Printing Pressure 1
2nd Print (75 rpm) Printing Pressure 3 Printing Pressure 2 Printing Pressure 1
3rd Print (90 rpm) Printing Pressure 4 Printing Pressure 3 Printing Pressure 2
4th Print (105 rpm) Printing Pressure 5 Printing Pressure 4 Printing Pressure 3
5th Print (120 rpm) Printing Pressure 5 Printing Pressure 5 Printing Pressure 5
Bigger number: increases the pressure
Smaller number: decreases the pressure
6.7.6 RE-FEEDING MECHANISM
•
If the registration sensor detects a non-feed, the machine tries again. However, if
the machine detects a non-feed the second time, the jam indicator lights.
[A]
[B]
[C]