HP D640 Bedienungsanleitung PDF herunterladen (Seite 256)

Troubleshooting

D-20 Using Paper

Troubleshooting

Paper problems are somewhat difficult to detect. A series of steps will help isolate paper-

induced problems. The steps to follow are:

• Is it a paper or a printer problem?

• Isolate a paper path

• Isolate a paper brand

• Isolate a paper type

• Evaluate user’s paper practices

• Evaluate environmental conditions

Is it a Paper or Printer Problem?

When determining a printer failure, a distinction must be made between problems relating to

the printer itself and those involving paper. Often a problem which first appears to be related to

the printer is actually a matter of poor paper selection or handling. To determine is a problem is

printer or paper-induced a few simple steps can be helpful:

• Turn paper over in the tray to print on the reverse side.

• Rotate sheets 180° (end to end) to feed with a different leading edge.

If the symptoms cease, or change in some way, it can be assumed that the problems are paper

induced.

Isolate a Paper Path

The physical properties and composition of a particular paper influence its motion along a

printer’s main paper path. As a general rule, the straighter a paper path, the more forgiving it is

of the paper’s physical characteristics.

Try Using the Straightest Paper Path

Some problems can be avoided by using the straightest paper path. Feed paper from tray1. This

path is recommended for transparencies and heavy basis weight media.

Figure D-5 D640 paper paths

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HP D640 Bedienungsanleitung Seite 256