Buffer roller cleaners

Fig 12.8 Film path through buffers

The buffer cleaning method is very efficient. It is able to remove more deeply embedded dirt and a greater amount of old and sticky oil than film cleaners that use ultrasonics only.

The buffer process is very gentle, partially due to the soft nature of the buffers and partially to the constant spray of solvent that is applied to the buffers flushing away the dirt.

The rollers must be regularly checked that there is no dirt trapped in the buffer. Using some unwanted film run a 'scratch test’ at start up and examine the film carfully for any signs of scratching. A strong directional light is good for examining the test for scratches.

Regular maintenance — especially changing the buffers and solvent filters — is essential.