Easy assembly pagewidth printhead capping arrangement
View Patent ↗An inkjet printer comprising: an elongate shaft arranged, in use, to rotate so as to move a capper for capping a pagewidth printhead out of and into its capping position; a support frame for supporting the shaft at the longitudinal first and second ends of the shaft so as to allow the rotation of the shaft; and fixing means for fixing the shaft to the support frame at the first end of the shaft, the fixing means comprising: a bearing into which the first end of the shaft is positioned for allowing the rotation of the shaft; and engagement means arranged to slidably engage with the support frame so as to fix the shaft thereto, the bearing being configured to allow pivotal movement of the elongate shaft about the second end of the shaft during the sliding engagement of engagement means and support frame.
1. An inkjet printer comprising:
an elongate shaft arranged, in use, to rotate so as to move a capper for capping a pagewidth printhead out of and into its capping position;
a support frame for supporting the shaft at the longitudinal first and second ends of the shaft so as to allow the rotation of the shaft; and
fixing means for fixing the shaft to the support frame at the first end of the shaft, the fixing means comprising:
a bearing into which the first end of the shaft is positioned for allowing the rotation of the shaft; and
engagement means arranged to slidably engage with the support frame so as to fix the shaft thereto, the bearing being configured to allow pivotal movement of the elongate shaft about the second end of the shaft during the sliding engagement of engagement means and support frame; and
second fixing means for fixing the shaft to the support frame at the second end of the shaft, the second fixing means comprising:
a second bearing into which the second end of the shaft is positioned for allowing the rotation of the shaft, the second bearing being configured to allow the pivotal movement of the elongate shaft about the second end during the sliding engagement of the engagement means and support frame
wherein the second fixing means incorporates a plate having the second bearing positioned in a hole therethrough and at least one tab provided on the plate configured to engage with a slot of the support frame.
2. An inkjet printer according to claim 1 , wherein the support frame has a slot through which the first end of the shaft is able to pass so as to engage with the bearing of the fixing means, the slot being configured to allow movement of the first end during the sliding engagement of the engagement means and support frame.
3. An inkjet printer according to claim 2 , wherein:
the movement of the first end during the sliding engagement moves the shaft from being at an angle off parallel to the capping position to being parallel to the capping position; and
the bearing is configured to accommodate the angular movement of the shaft.
4. An inkjet printer according to claim 3 , wherein the bearing is configured to only contact the first end of the shaft about a line around the circumference of the shaft throughout the angular movement of the shaft.
5. An inkjet printer according to claim 4 , wherein a cross-section of the bearing contact face is triangular.
6. An inkjet printer according to claim 3 , wherein the engagement means slidably engages with the support frame by sliding normal to the capping position.
7. An inkjet printer according to claim 6 , wherein the fixing means incorporates a plate having the bearing positioned in a hole therethrough, and the engagement means incorporates at least one tab provided on the plate, the tab being configured to slidably engage with a slot of the support frame.
8. An inkjet printer according to claim 3 , wherein the second bearing is configured to accommodate the angular movement of the shaft during the sliding engagement of the engagement means and support frame.
9. An inkjet printer according to claim 8 , wherein the second bearing is configured to only contact the second end of the shaft about a line around the circumference of the shaft throughout the angular movement of the shaft.
10. An inkjet printer according to claim 9 , wherein a cross-section of the second bearing contact face is triangular.
11. An inkjet printer according to claim 3 , wherein the second fixing plate incorporates a seat for housing a motor for driving the rotation of the shaft.
12. An inkjet printer according to claim 11 , wherein a gear is arranged on the second end of the shaft, the seat of the second fixing plate being configured to arranged a motor gear of the motor in mesh with the shaft gear.
13. An inkjet printer according to claim 12 , wherein the motor gear is a worm gear arranged on a shaft of the motor, the seat of the second fixing plate being configured so that the motor may be inserted into the seat by causing rotation of the shaft gear.
14. An inkjet printer according to claim 12 , wherein the shaft gear is a part of a gearing assembly of the shaft for moving the capper.
15. An inkjet printer according to claim 1 , wherein the printhead is incorporated in a printing cartridge which is removably engageable with the printer.
16. An inkjet printer according to claim 15 , wherein the capper is incorporated in the printing cartridge.
17. An inkjet printer according to claim 15 , wherein the printhead is pagewidth printhead and the capper is a pagewidth capper.
18. An inkjet printer according to claim 17 , wherein a pagewidth is about 100 mm.