Patent EP0348953A2 successfully refreshed from Google Patents.
EP0348953A2
Expired / Lapsed
EP
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A printer for continuous-form recording paper
Assignee: Pentax Corp
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Filing: 1989-06-28
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Granted: —
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Expires: 2009-06-28
Abstract
Abstract A printer for electrophotographically forming an image on a condinuous-form recording paper (20). A fransfer unit (7) and a heat fixing roll pair (8) are brought into their withdrawn states, respectively, in a print stand-by state, whereby the recording paper (20) becomes out of contact with a photoconductive drum (1) and a heat roll (81A). A dust removing brush pair (40) is also brought into its withdrawn state in the print stand-by state so as to be out of contact with the recording paper (20).
Inventors
- 👤 Ikuo c/o Negoro
- 👤 Masatoshi C/O Takano
- 👤 Kiyoshi C/O Negishi
- 👤 Atsushi C/O Chikama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:51
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6517; G03G15/6526; G03G15/14; G03G15/16; G03G15/163; G03G15/1635; G03G15/164; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2032; G03G2215/00; G03G2215/00362; G03G2215/00367; G03G2215/00371; G03G2215/00409; G03G2215/00413; G03G2215/00443; G03G2215/00451; G03G2215/00455; G03G2215/00459; G03G2215/00535; G03G2215/00544; G03G2215/00607; G03G2215/00658; G03G2215/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
64 words
A printer for electrophotographically forming an image on a continuous-form recording paper, which comprises: a pair of fixing rollers, at least one of which is withdrawable from its fixing operative position; a tansfer charger withdrawable from its transfer operative position; and a drive means for executing withdrawing and restoring movements of said withdrawable roller of said fixing roller pair and of said transfer charger.
Claim 2
Dependent Claim
64 words
A printer for electrophotographically forming an image on a continuous-form recording paper, which comprises: a pair of fixing rollers, at least one of which is withdrawable from its fixing operative position; a tansfer charger withdrawable from its transfer operative position; and a drive means for executing withdrawing and restoring movements of said withdrawable roller of said fixing roller pair and of said transfer charger.
Claim 3
Dependent Claim
47 words
The printer acording to claim 1, further comprising: transfer charger load means for loading said transfer charger to its transfer operative position; transfer charger lock means for fixedly locking said transfer charger in its withdrawn position; and lock release means for releasing said transfer charger lock means.
Claim 4
Dependent Claim
132 words
The printer according to claim 1 or 2, wherein said transfer charger is carried by a pivotally rockable arm member to allow said transfer charger to move from its transfer operative position to its withdrawn position by pivotal movement of said arm member, said arm member having a pressure guide rockably mounted on the pivotal center thereof for pivotal movement relative to said arm member, said pressure guide flexing a paper feed path toward a photoconductive drum after the transfer unit, said arm member being adapted to be pivotally driven for its withdrawing movement within a certain range of the pivotal movement of said pressure guide; and said printer further comprises a drive means for executing pivotal movements of said withdrawable roller of the fixing roller pair and of said pressure guide.
Claim 5
Dependent Claim
61 words
The a printer according to claim 3, further comprising: pressure guide load means for biasing said pressure guide to a predetermined position; transfer charger loading means for biasing said transfer charger to its transfer operative position; pressure guide lock means for fixedly locking said pressure guide in its withdrawn position; and lock release means for releasing said pressure guide lock means.
Claim 6
Dependent Claim
82 words
A printer for electrophotographically forming an image on a continuous-form recording paper, which comprises; a dust brush means provided adjacent the inlet of the continuous-form recording paper, said dust brush means being withdrawable from its position contacting the continuous-form recording paper; a fixing roller means withdrawable from its fixing operative position; a transfer means withdrawable from its transfer operative position; and a drive means for withdrawing and restoring said withdrawable fixing roller means, transfer means and dust brush means at predetermined timings.
Claim 7
Dependent Claim
82 words
A printer for electrophotographically forming an image on a continuous-form recording paper, which comprises; a dust brush means provided adjacent the inlet of the continuous-form recording paper, said dust brush means being withdrawable from its position contacting the continuous-form recording paper; a fixing roller means withdrawable from its fixing operative position; a transfer means withdrawable from its transfer operative position; and a drive means for withdrawing and restoring said withdrawable fixing roller means, transfer means and dust brush means at predetermined timings.
Claim 8
Dependent Claim
85 words
A printer for electrophotographically forming an image on a continuous-form recording paper comprising a pivotally withdrawable transfer charger and a paper holder for holding the recording paper for said transfer charger, said transfer charger and said paper holder being pivotally swung to separate said recording paper form a photoconductive drum in a print stand-by state, said paper holder being pivotally movable relative to said transfer charger and provided with an operating member for effecting pivotal movement of said paper holder independently of said transfer charger.
Claim 9
Dependent Claim
85 words
A printer for electrophotographically forming an image on a continuous-form recording paper comprising a pivotally withdrawable transfer charger and a paper holder for holding the recording paper for said transfer charger, said transfer charger and said paper holder being pivotally swung to separate said recording paper form a photoconductive drum in a print stand-by state, said paper holder being pivotally movable relative to said transfer charger and provided with an operating member for effecting pivotal movement of said paper holder independently of said transfer charger.
Claim 10
Dependent Claim
56 words
The printer accroding to claim 6, further comprising a push-up mechanism for loading the photoconducive drum located above the transfer charger in upward direction, and an operating member operatively associated with said push-up mechanism and said paper holder for rocking said paper holder upon push-up movement of the photoconductive drum by means of said push-up mechanism.
Claim 11
Dependent Claim
88 words
The printer according to claim 7, which comprises a lower structural part and an upper strcutural part adapted to rockably open relative to said lower structural part, said upper structural part pressing the photoconductive drum against said lower strcutural part to lock it in a predetermined position upon closure of said upper sturctural part, while upon opening of said upper structural part, the pressure exerted by said upper structural part is released to allow said drum to be pushed up by a predetermined amount by said push-up mechanism.
References Cited (Backward Citations)
No citation records indexed.
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