Image forming apparatus including optical print head

An image forming apparatus comprising:

• a main assembly;
• a drum cartridge including a photosensitive drum and capable of being mounted in and dismounted from said main assembly by being inserted into and extracted from said main assembly with respect to an inserting direction;
• a print head including a light emitting element configured to emit light to which said photosensitive drum is exposed and including a lens array configured to focus the light onto said photosensitive drum;
• a moving mechanism configured to move said print head between an exposure position where said photosensitive drum is exposed to the light by causing said light emitting element to emit the light in a state in which said optical print head is positioned relative to said drum cartridge, and a retracted position further spaced from said photosensitive drum than when in the exposure position;
• and
• an abutted portion provided in said main assembly as a separate member from said print head and said drum cartridge, and configured to be abutted by a bar-like cleaning member to prevent further insertion of said cleaning member in the inserting direction after said cleaning member cleans a light emergent surface in a light passing region where the light focused in a region used for forming an image on the photosensitive drum passes by inserting in the inserting direction from outside of said main assembly when said print head is in the retracted position.

An image forming apparatus comprising:

• a main assembly;
• a drum cartridge including a photosensitive drum and capable of being exchanged by being mounted in and dismounted from said main assembly;
• a print head including a light emitting element configured to emit light to which said photosensitive drum is exposed and including a lens array configured to focus the light onto said photosensitive drum, said print head being movable between an exposure position where said photosensitive drum is exposed to the light by causing said light emitting element to emit the light in a state in which said print head is positioned relative to said drum cartridge and a recording position retracted from said photosensitive drum further than when in the exposure position;
• and
• a bar-like cleaning member configured to clean a light emergent surface of said lens array,
• wherein said cleaning member includes:
• a grip portion provided on one end side of said cleaning member with respect to a longitudinal direction of said cleaning member and configured to be gripped,
• a rubbing member provided on the other end side of said cleaning member with respect to the longitudinal direction of said cleaning member and configured clean the light emergent surface by sliding on the light emergent surface, and
• a contact portion configured to contact a portion-to-be-contacted fixed to said main assembly as a separate member from said print head and said drum cartridge so that said rubbing member inserted from an outside of said main assembly toward between said photosensitive drum and the light emergent surface and cleaning the light emergent surface by rubbing on the light emergent surface is prevented from further moving toward a downstream side with respect to an inserting direction thereof.

An image forming apparatus comprising:

• a main assembly;
• a drum cartridge including a photosensitive drum and capable of being mounted in and dismounted from said main assembly by being inserted into and extracted from said main assembly;
• a print head including a light emitting element configured to emit light to which said photosensitive drum is exposed and including a lens array configured to focus the light onto said photosensitive drum;
• and
• an abutted portion configured to be abutted in the inserting direction by a bar-like cleaning member to prevent further insertion of said cleaning member in the inserting direction after said cleaning member cleans a light emergent surface of the lens array by being inserted in the inserting direction from outside of said main assembly,
• wherein said abutted portion is provided on an upstream side of said print head with respect to the inserting direction and in said main assembly as a separate member from said print head and said drum cartridge.

An image forming apparatus comprising:

• a main assembly;
• a drum cartridge including a photosensitive drum and capable of being mounted in and dismounted from said main assembly by being inserted into and extracted from said main assembly;
• a print head including a light emitting element configured to emit light to which said photosensitive drum is exposed and including a lens array configured to focus the light onto said photosensitive drum;
• and
• an abutted portion configured to be abutted in the inserting direction by a bar-like cleaning member to prevent further insertion of said cleaning member in the inserting direction after said cleaning member cleans a light emergent surface in a light passing region where the light focused in a region used for forming an image on the photosensitive drum passes by being inserted in the inserting direction from outside of said main assembly,
• wherein said abutted portion is provided on an upstream side of said print head with respect to the inserting direction and in said main assembly as a separate member from said print head and said drum cartridge.