Toshiba e-STUDIO 2555C Service Manual page 618

Phenomenon of paper jamming
All
Parts to be replaced
Process unit
Registration motor
DRV board
LGC board
Paper clinging detection
sensor
Registration roller
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
Check item
DRV board • Board check
• Connector check (CN461, CN450, CN451)
• Harness check
LGC board • Board check
• Connector check (CN361, CN362)
• Harness check
Paper • Sensor check (Perform the input check: 03-
clinging [ALL]OFF/[9]/[E])
detection • Connector check (J643, J645, J1109, CN461)
sensor • Harness check
Check of the Check that the 2nd transfer roller shaft is securely
2nd transfer grounded via the frame.
roller • Check if the leaf spring is deformed.
connection • Check if the shaft tip and the leaf spring contact
properly.
Change of the If the leading edge of paper clings to the 2nd
2nd transfer transfer roller and causes paper jamming, change
bias the 2nd transfer roller bias correction factor of the
leading/trailing edge of the paper. (The larger the
value, the smaller the transfer voltage of the
leading/trailing edge of the paper.)
Codes to be changed (Initial value of the
transfer bias of the leading edge of the paper: 0)
• Color mode print (top side): 05-2938-*
• Color mode print (back side): 05-2939-*
• Black mode print (top side): 05-2940-*
• Black mode print (back side): 05-2941-*
Sub codes:* → Plain paper: 0, Thick paper 1:
1, Thick paper 2: 2, Thick paper 3: 3,
Overhead transparencies: 4, Special paper
1: 5, Special paper 2: 6, Recycled paper: 7,
Thick paper 4: 8, Thin paper: 9, Envelope:
10, Special paper 3: 11
Notes:
After these codes are changed, perform
solid duplex-printing and check that there is
no faint or void image on the leading/trailing
edge of the paper.
Replace it if it is worn out.
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Measures
Remark