4. Ensure that the drive gear is free to move left and right. Repair as needed.
5. Ensure that the forms jam sensor cable is securely connected to the circuit board behind the tractor
connector and gear. Use needle-nose pliers to reseat, if needed.
6. Use a lint-free cloth to clean the forms jam sensor
7. Ensure that the forms are adjusted in the tractor assembly so the holes are not damaged and the forms
are not loose (bubble) in the middle.
8. Return to the step that sent you here.
Ribbon Feed and Ribbon Lift Service Check
You are here because of an 89/089 RIBBON JAM message.
1. Remove the ribbon cartridge. See “Ribbon” on page 353.
2. Advance the ribbon by turning the knob in the direction of the arrow. The ribbon should freely advance
without the ribbon folding over. Replace the ribbon cartridge if you locate a problem such as a ribbon that
binds or is folded over.
Gear
Connector
Tractor Assembly
Release Levers
Tractor Doors
Belts and Pins
Forms Jam
Sensor
Tractor Locking
Levers
Supports
Figure 83. Tractor Assembly
Chapter 5. Removals and Adjustments
330
Summary of Contents for 4247
Page 1: ...4247 Printers Maintenance Information Document Number SA24 4400 05 Part Number 27P8450 IBM ...
Page 241: ...e90apc15 Figure 24 Main Input Power Supply Ground Chapter 3 Circuit Diagrams 241 ...
Page 257: ...Figure 32 Stacker Motor Wiring Chapter 3 Circuit Diagrams 257 ...
Page 261: ...Stacker Cable Wiring Figure 36 Tractor Assembly Cable Wiring Chapter 3 Circuit Diagrams 261 ...