Ricoh Pro C651EX Troubleshooting Manual page 72

Sheets are curled or wavy.
• Flatten curls and waviness before loading paper.
• Turn the sheets the other way up or smooth the edges before loading.
• Stacking too many sheets may cause the sheets on top to curl greatly. If this
happens, reduce the number of stacked sheets.
Sheets absorbed moisture and became limp.
Sheets that will not be used for a long time should be protected from moisture by,
for example, storing them in a sealed bag.
If you switch the anti-humidity heater on, the heater is inside the paper tray will
operate to prevent sheets from absorbing moisture even when the main power is
off.
For details about operating the anti-humidity heater, see "Anti-humidity Heater
Switch", About This Machine.
When using thick paper or slippery paper.
Enable the Pickup Assist setting.
<If custom paper is used>
1. In [Advanced Settings] for the custom paper in use, set [03: Pickup Assist
Setting] to [On].
<If custom paper is not used>
1. In the [Adjustment Settings for Skilled Operators] menu, set [0115: Pickup
Assist Setting] to [On].
The paper feed sensor is stained with paper dust.
Clean the part of the paper feed sensor where the paper misfeed is detected.
For details about cleaning the paper feed sensor, see the Replacement Guide.
The paper feed performance is less sufficient because the paper transport
roller is soiled with toner.
Clean the part of the paper transport roller where the paper misfeed is detected.
For details about cleaning the paper transport roller, see the Replacement Guide.
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