Ricoh M126 - Transfer Roll Service Check; Tray 2 Service Check

Service Checks
SM 6-85 M126/M127/M128
Trouble-
shooting
6.5.17 TRANSFER ROLL SERVICE CHECK
FRU Action
Transfer roll
 Do not touch the transfer roll except at its ends. Place a
sheet of paper over the roll to prevent damage from finger
oils or hand lotion.
Check the springs in the left and right transfer roll bearings. Do not
try to move the left spring. The bearing assemblies should support
the transfer roll, applying evenly distributed forces to the PC drum.
Replace the transfer roll assembly if the springs or bearings show
signs of damage, or fatigue.
Inspect the transfer roll for signs of wear, damage or
contamination.
Replace as necessary.
6.5.18 TRAY 2 SERVICE CHECK
FRU Action
Tray 2
Turn the machine off.
Separate the machine from Tray 2.
Turn the machine on and check the voltages on connector J28 on
the engine board.
Pins 1, 4: 3.3 V
Pin 2: 24 V
Pin 6: Ground
If the voltages are incorrect, then replace the engine board. If the
voltages are correct, then try using Tray 2 again. If the machine
error persists, then replace Tray 2.