Canon imagePROGRAF GP-300 - Manual (Page 317)

• Do not use tissue paper, paper towels, rough-textured cloth, or similar materials for cleaning so
as not to scratch the surface.
6. Pull down print head lock lever toward the front while holding its center (C) with your 6.
fingertip.
7. Grab grip (D) and open print head locking cover. 7.
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