Resolving Multifeed Error U1:01 on Fujitsu fi-7160 Scanner
The U1:01 error indicates that the built-in ultrasonic sensor has identified two overlapping pages feeding through the ADF at the same time. This is mostly related to dirty or worn out separation rollers.
Common causes
- 1Friction loss on the brake roller due to wear and tear.
- 2High static electricity causing thin pages to stick together.
- 3Improper installation of the ADF roller assembly after replacement.
Solutions
Step-by-Step Instructions to Resolve Error U1:01
1. Clean the ADF Rollers
Accumulated paper powder, ink, and dust reduce roller grip, causing sheets to slide past together:- Open the ADF unit by pulling its release lever.
- Dampen a lint-free cloth with F1 cleaner fluid.
- Wipe the surface of the Pick Roller and Brake Roller evenly while spinning them manually.
2. Check the Brake Roller Operational State
The brake roller provides reverse resistance to isolate individual sheets:- Verify that the roller's physical rubber surface is not slick or worn out.
- Open the PaperStream driver or Software Operation Panel and review the life-cycle counter for consumables. Replace the roller set if it is near or past 200,000 sheets.
Steps to follow
- 1
Fan Your Paper Batch
Thoroughly fan the stack of sheets to introduce air gaps between pages, minimizing cohesive static electricity.
- 2
Clean Roller Surfaces
Using official Fujitsu F1 cleaner, gently scrub ink and debris off the primary pick roller and brake roller assemblies.
- 3
Verify Driver Multifeed Settings
Enable 'Bypass by pattern' or 'Bypass by length' within your scanning software if the job features intentionally taped tags.
Videos
Frequently asked questions
Yes, in over 80% of cases, cleaning the roller surfaces with solvent is sufficient to restore traction and prevent multiple sheets from slipping through together.
Yes, you can temporarily ignore or bypass the multifeed sensor in the scanner's driver settings, but this increases the risk of missed pages during high-speed scans.