Oki LP-1040 Maintenance Manual page 207

(9) Jam code 3503/3504 problem analysis
The lead edge of the paper reaches PS05 (registration sensor) too slowly.
 Check for improper paper installation or a problem with the flange.
Select Sensor in Engine Maintenance mode.
Monitor PS05.
Does the display change between On and Off?
Yes No
- Check for shorts on CBL-MECH2 and CBL-PS04.
- Check the installation of PS05 and the lever configuration.
If there are no problems, replace the PS05.
 Check the paper path from PS04 to PS05.
 If the jammed paper is in the cutter, perform (3) 3042 - 3047 problem analysis and check
the cutter's home position as well as its operation.
 Check the pressure of the roller (pinch).
(10) Jam code 3591/3592 problem analysis
The tail edge of the paper passes through PS05 (registration sensor) too quickly.
 Check the cut at the front edge of the paper for:
- Folded end;
- Curved cut line; and
- Jagged edges.
If there is a problem with the cut, perform (3) 3042 - 3047 problem analysis and check the
cutter's home position as well as its operation.
 Check for any dirt or foreign particles on the surface of the rollers (registration).
Is there a problem below with the installation of PS05?
- Improperly installed PS05
- Lever abnormality
Yes No
If there are any problems, replace the PS05.
 Check the paper path to PS05.
 Check the pressure of the roller (pinch).
Measure the paper length.
Is the cut length too short?
Yes No
 Check that a slack is formed in the paper above the cutter when the paper is cut.
If no slack is formed, decrease the heat roller speed.
 Check the motor PM01. If a problem is found, try replacing the motor.
Chapter 5 Engine Problems Troubleshooting
5-33