Ricoh DDP70, Maintenance Manual

Page: 50 / 137

Troubleshooting
5-1
M M L 0 0
Chapter 5. Troubleshooting
5.1. Troubles
5.1.1. Abnormal stacking
Stacking Capability (in case of a size of paper that is stacked on the same tray)
1. Staple mode
2. Non Staple mode
Note:
*1:This value is measured near a staple.
If sheets in bundles spread like a folding fan, measure the value after
mending its spread.
*2:In case of 2 to 20 sheets and except B5/A3/letter size paper
1 position staple: 120mm,
2 position staple: 160mm
*3:Its value is measured between a bundle and the next bundle.
*4:If stacked paper rotates, its maximum value of a rotation is considered
to be a skew value.
PRIMARY FACTOR; The condition of stacked paper on the Shift Tray is abnormal.
Note: If paper stacked on each tray is beyond the capacity indicated in
Table 1-1
, abnormal stacking may occur.
PHENOMENON CAUSES & CHECK POINTS CORRECTIONS Maintenance
Ref + Page
1. This phenomenon
occurs. 1. The paper is curled. Replace: Paper
2. The paper is skewed at
the Paper Exit Unit.
(1) Paper Exit Opening
does not close correctly.
(2) Grip solenoid does not
operate. Adjust: Paper Exit Opening
Solenoid (SD4)
Replace: Paper Exit Opening
Solenoid (SD4)
Replace: Grip Solenoid (SD3)
6.7.6, 6-36
4.3.10, 4-15
4.3.9, 4-14
3. Sponge Roller fault. Replace: Paper Exit Roller
4.3.3, 4-6
4. The stacked paper is
beyond the capacity. Remove: Paper
5. The various size paper is
stacked. Remove: Paper
Vertical skew Horizontal skew
in a bundle *1 15 sheets or less 1.5mm or less 1.5mm or less
50 sheets or less 3.0mm or less 3.0mm or less
in some bundles 100mm or less *2 100mm or less *2
Vertical skew Horizontal skew
Shift Tray stack-
ing (normal) in some sheets 30mm or less 10mm or less
Shift Tray stack-
ing (offset) in a bundle 30mm or less 10mm or less
in some bundles *3 30mm or less 15 to 45mm
Sub-Tray Stack-
ing in some sheets 60mm or less 60mm or less