2.11.23 How to use the jam checker
CAUTION
• Protect the soldered part of the indication
board using insulating tape.
• To make the jam checker, the indication
board and harness are required. (See the
parts catalog for the part numbers.)
By using the jam checker, you know which sensor has detected the jam after an original jam.
Use the jam checker as follows:
1. After an original jam occurs, remove the ADF rear cover and connect the jam checker
harness connector to CN102 on the ADF control board.
2. Turn on DIP switches 101-1 and 3. Be sure that the jam checker indicates "00". If not, press
SW100 to reset it.
3. Turn on DIP switch 101-2 (101-1, 2, and 3 ON). The jam checker will indicate a number. Use
the table below to find out which sensor has detected the original jam.
Displayed No. Description Logging Location
01 Entrance sensor ON check jam "RDH Feed" in service tool [3-06]
02 Entrance sensor OFF check jam
03 1st transport sensor ON check jam
04 1st transport sensor OFF check jam
05 2nd transport sensor ON check jam "RDH Trans" in service tool [3-06]
06 2nd transport sensor OFF check jam
07 Registration sensor ON check jam (in ADF mode)
08 Registration sensor OFF check jam (in ADF mode)
09 1st reverse sensor ON check jam "RDH Exit" in service tool [3-06]
10 1st reverse sensor OFF check jam
11 2nd reverse sensor ON check jam
12 2nd reverse sensor OFF check jam
13 Exit sensor ON check jam
14 Exit sensor OFF check jam
15 Registration sensor ON or OFF check jam (in SADF mode) "SADF Feed" in service tool [3-06]
16 SADF exit sensor ON or OFF check jam (in SADF mode) "SADF Exit" in service tool [3-06]
17 Jam due to abnormal original feed motor SC33 in service tool [3-07] when 4
times or more occur during one job
cycle
18 Jam due to abnormal transport motor SC34 in service tool [3-07] when 4
times or more occur during one job
cycle
19 Jam due to abnormal reverse motor SC35 in service tool [3-07] when 4
times or more occur during one job
cycle
20 Original end detection failure by recycle arm sensor --
21 Original end detection failure by recycle arm sensor
(in job recovery mode)
--
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