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SUBJECT: Inverter Jam
B. The gap between the open/shut guide plate and the lower guide plate narrows.
C. Paper passing through the guide plates has crease marks at the point where the gap
is narrow.
D. This "stiff" paper proceeds strait ahead (due to its stiffness), and hits the inverter return
roller. Jams often occur at this point.
Inverter Return Roller
If the gap between the plates is even, paper jams do not occur.
NOTE: This paper jam occurs only when the first sheet is fed in duplex mode because of
the short interval betweeen pages. The preceding sheet of paper prevents the
following sheet from hitting the inverter return roller.
Preceding paper
Inverter return Roller
Technical Bulletin
The gap narrows in the center.
paper
No. RTB-005
DATE: Feb. 28, '91
PAGE: 3 of 4
Open/Shut Guide Plate
Ribs
Lower Guide Plate
NOTE: This is also done
(intentionally) at the exit rollers to
create stiffness in the paper sheet.
Following Paper
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