Replacing The Feed Roller/Pick-Up Roller (Trays 1, 2, 3) - Konica Minolta bizhub PRO 920 Service Manual

3. PERIODIC CHECK
3.13.2

Replacing the feed roller/pick-up roller (Trays 1, 2, 3)

A. Periodically replaced parts/cycle
• Feed roller: Every 1,000,000 prints (once for every 300,000 prints (tray 1, 2)/once for every 500,000 prints
(tray 3) for actual replacement cycle)
• Pick-up roller: Every 1,000,000 prints (once for every 300,000 prints (tray 1, 2)/once for every 500,000
prints (tray 3) for actual replacement cycle)
B. Procedure
Note
• The method for replacing the pick-up roller assembly is the same for tray 1, 2 and 3. The explana-
tion here is given for tray 1.
• After completion of the installation, rotate the pick-up roller in the direction of the paper feed
(counterclockwise as seen from the front) to check to see if the paper feed roller, the belt and the
coupling section rotate smoothly. The rotation of the pick-up roller is restricted only to the direc-
tion of the paper feed (counterclockwise as seen from the front) and be absolutely sure not to turn
it clockwise.
[6] [1]
[7]
[5]
[3]
86
[12] [11]
[9]
[4] [10]
57gaf2c118na
Field Service Ver2.0 Aug.2005
1.
Pull out the paper feed tray. (See "6.3.18 Remov-
ing/reinstalling the paper feed tray 1 and 2,"
"6.3.20 Removing/reinstalling the paper feed tray
3.")
2.
Remove 2 C-clips [1].
3.
Remove the bearing /Fr [2].
4.
Slide the bearing /Rr [3] to the rear side.
5.
Slide the pick-up roller assembly [4] to the front
side and remove the pin [6] of the shaft [5] from
the coupling [7].
6.
While bringing up the pick-up roller assembly [4],
pull out the shaft [5] from the notch [8] of the metal
frame.
7.
Remove the shaft [10] from the arm [9] of the
guide plate, and then remove the pick-up roller
assembly [4].
Note
• When installing the pick-up roller assembly
[4], be sure to take note of the following.
1) Be careful not to damage it with the paper
feed reference actuators /Fr [1] and /Rr
[12].
2) Install it so that the pin [6] of the shaft [5] is
engaged with the coupling [7].
3) Check to see if the shaft [10] is set
securely to the arm [9] of the guide plate.