7156 Service Guide
Chapter 7: Disassembling and Reassembling the Thermal Receipt Mechanism
September 1998
75
Note:
If you are replacing the rotating blade, you must change all parts contained in the
knife kit.
1.
Remove the knife home switch assembly.
2.
Remove the set screw and knife actuator arm.
3.
Remove the ground strap connection at the printhead.
4.
Remove the left-hand support and knife blade.
5.
Remove the grip ring from the knife actuator gear with small “E” ring pliers.
6.
Remove the knife actuator gear to gain access to the right-hand support mounting
screws.
7.
Remove the three mounting screws and the right-hand support.
Replacing the Knife Assembly
See the illustration on the previous page.
Note:
Order the knife blade kit. When one part is changed, all parts must be changed. Be
sure to follow the kit instructions to ensure proper break-in of the knife kit. See the Parts
Information Manual for more information about the kit.
1.
Install the new right-hand support with the three screws.
2.
Replace the knife actuator gear with the new grip ring.
3.
Install the new knife blade and new actuator arm.
4.
Install the new left-hand support with the two mounting screws.
5.
Reinstall the knife home switch.
6.
Rotate the knife blade assembly to contact the knife home switch (home position).
7.
Install the new ground strap connecting to both the printhead and the knife blade.
Summary of Contents for 7156
Page 16: ......
Page 20: ...Chapter 1 About the 7156 Printer 7156 Service Guide September 1998 6...
Page 34: ...Chapter 2 Setting Up the Printer 7156 Service Guide September 1998 20...
Page 72: ...Chapter 5 Adjustments 7156 Service Guide September 1998 58...
Page 79: ...7156 Service Guide Chapter 6 Removing the Thermal Receipt Mechanism September 1998 65...
Page 81: ...7156 Service Guide Chapter 6 Removing the Thermal Receipt Mechanism September 1998 67...
Page 99: ...7156 Service Guide Chapter 8 Replacing the Thermal Receipt Mechanism September 1998 85...
Page 101: ...7156 Service Guide Chapter 8 Replacing the Thermal Receipt Mechanism September 1998 87...
Page 108: ......
Page 154: ......
Page 158: ...Chapter 15 Removing the Base Feed Mechanism 7156 Service Guide September 1998 144...
Page 164: ...Chapter 16 Forms Compensation Arm Assembly 7156 Service Guide September 1998 150...
Page 172: ...Chapter 18 Solenoid and Pivot Arm Assemblies 7156 Service Guide September 1998 158...
Page 178: ......
Page 198: ...Appendix D Ordering Paper and Supplies 7156 Service Guide September 1998 184...
Page 204: ...Index 7156 Service Guide September 1998 190...
Page 205: ......