Xerox 5915, Service Manual

Page: 142 / 146

9-10
Section 9 BSD (Block Schematic Diagram)
4.2 PAPER SUPPLYING AND TRANSPORTATION
C1-2 TRAY 1 MISFEED JAM
Feed sensor fails to turn on within 2.7 sec after feed was initiated.
C9-3 MSI MISFEED JAM
Registration gate sensor fails to turn on within 2.3 seconds after initiation of feed.
E1-2 REGI-GATE SENSOR OFF CHECK JAM
Registration gate sensor fails to turn off (remains on) at the end of the specified time
(varies by paper size) after registration gate opened.
E1-6 REGI-GATE SENSOR STATIC JAM
Registration gate sensor remains on at power on or standby. (Remaining paper)
E6-1 R/H UPPER INTLK OPEN FAIL
Right upper cover is open or right upper interlock switch is faulty.
MSI size detection
•
The MSI paper size is detected for the following purposes:
a. Lamp scan control
b. Fuser temperature control
c. Detection of FUSER EXIT JAM [E3-3].
1. Width is detected by the MSI size sensor by measuring time from start of 1st
paper feed to registration gate sensor ON.
2. Length is detected by measuring the time from registration gate open to
registration gate sensor OFF.
•
Since length cannot be detected for the 1st paper, control is carried out using
that for A3.
TRAY 1 FEED ROLL
MSI FEED ROLL
MSI SIZE SNR
PRE REGI. SNR
MSI NO PAPER SNR