HP 400 - Manual (Page 78)

Problem Resolution 5-15
Table 5-6. Possible Causes for Paper Jams
Possible Cause Solution
Paper is out-of-specification Use paper that meets the specifications listed in chapter 1.
IN tray is too full Make sure that the stack of paper in the IN tray is no more than 0.2 inch (5 mm) high.
Paper is too long • Use only media sizes recommended in chapter 1.
• Do not use continuous Z-fold paper in the printer.
Paper is not loaded correctly Make sure the paper is not buckled. For more information, see “Loading Media” in chapter
3.
Obstructions block
the paper path Look for obstructions in the paper path, both within the paper tray and within the printer
itself. Open the access door and verify that the paper path within the printer is clear of any
obstructions. Then lift the printer out of the paper tray and look for obstructions.
The printer may be faulty • Try reloading paper in the paper tray. If it continues to have problems feeding paper into
the printer, return the printer for repair.
• If paper does not properly feed through the printer manually, the printer may be faulty.