Paper Jams

Printer Services Newsletter 3.4

Paper Jams

Paper jams, we all have them but what are they, why do they happen and what can I do to prevent them?

There are commonly two types of paper jams, the stationary jam and the delay jam. The stationary jam is where a paper sensor has been activated for a long period of time or activated when it is not supposed to be.  This jam can be caused by a sheet of paper, a torn piece of paper left over from a previous jam or a sensor that has been damaged or worn out.  If it is a torn piece of paper it can often be difficult to see and find in the printer. Damaged or worn out sensors can become stuck in an active state even though no paper is present.
The delay paper jam is when the paper has not reached a sensor in a dedicated amount of time normally because it has not left the paper cassette. The common cause of a delay paper jam is a worn or dirty roller where the roller fails to grip and the paper slips. It is also possible that pre-printed, perforated and non-standard paper can all cause these jams.  This is due to these types of paper having an increased chance of slipping or failing to separate which can stop it feeding. Also the drying powder used on these types of paper in their manufacture can cause the rollers to slip and miss feed. This effect may vary between batches depending on the amount and type of powders used.

Both of these jam types can be helped with a quick wipe of the rollers. If you find that the rollers are worn or there may be paper in the machine then a technician will be needed.