Toshiba DP1600 Service Manual page 170

• 2nd feed roller ...................... The driving gear train from the main motor and the timing belt 309 drive
Feed sensor
2nd feed roller
When the main motor rotates, the drive is transmitted to the gears of the RGST-CLT and OCF-CLT clutches
and these gears rotate. However, when the clutches are turned off, the respective rollers do not rotate.
When paper is picked up from the option cassette, the OCF-CLT is turned on, causing the 2nd feed roller
to rotate. At this time, the clutch pulley prevents timing belt 309 from rotating. The registration roller does
not rotate either, since the RGST-CLT is turned off.
When paper is fed into the paper path, the RGST-CLT is turned on, and the registration roller rotates. The
OCF-CLT is turned off, and the timing belt rotates the 2nd feed roller.
December 2000 © TOSHIBA TEC
the 2nd feed roller drive pulley. There are two systems on the 2nd feed
roller drive, only by the gear and by the timing belt. When feeding the
paper, the timing belt is used to drive (speed: DP1600 series = 86.9 mm/
sec, DP2000/2500 series = 118 mm/sec). When supplying the paper, the
gear is used to drive (speed: DP1600 series = 260 mm/sec, DP2000/
2500 series = 260 mm/sec). Switching of the gear drive and timing belt
drive is done by the clutch.
Registration roller
The gear train from the main
motor transmits the drive.
OCF-CLT (2nd feed clutch)
Fig. 10-2-4
10 - 5
RGST-CLT
(Registration roller clutch)
Timing belt 309
Clutch pulley
10-2-3-2 PPS2
1600/2000/2500 DRIVE SYSTEM