| 摘要 |
In a system comprising a replaceable cartridge [40] having belts [22,24] retaining idler wheels [18,20[ supportive of the belts [22,24] and a paper drive wheel [16] in recesses [106,108,110] on a carcass [28] under belt tension when the cartridge is not on a base, the base comprises a tensioning system [66,76,74,90] whereby an inserted cartridge [40] has the wheel members [16,18,20] spaced away from the carcass [28] as the belts [22,24] are tensioned to allow rotation of the wheel members [16,18,20]. The drive wheel [16] is retained upon a feed hub assembly [26] by a click-on click-off mechanism requiring only single handed operation. |
