{"id":6999,"date":"2023-07-29T06:25:56","date_gmt":"2023-07-29T06:25:56","guid":{"rendered":"https:\/\/41j.com\/blog\/?p=6999"},"modified":"2023-07-29T06:25:56","modified_gmt":"2023-07-29T06:25:56","slug":"px-045a-printhead","status":"publish","type":"post","link":"https:\/\/41j.com\/blog\/2023\/07\/px-045a-printhead\/","title":{"rendered":"PX-045A Printhead"},"content":{"rendered":"\n<p>DC Values (prior to printing)<\/p>\n\n\n\n<p>1<\/p>\n\n\n\n<p>2<\/p>\n\n\n\n<p>3 Using as GND reference<\/p>\n\n\n\n<p>4 2.59V DC<\/p>\n\n\n\n<p>5 3.3V DC<\/p>\n\n\n\n<p>6 3.3V DC<\/p>\n\n\n\n<p>7 0V DC<\/p>\n\n\n\n<p>8 0V DC<\/p>\n\n\n\n<p>9 3.3V DC<\/p>\n\n\n\n<p>10 0V<\/p>\n\n\n\n<p>11 NC<\/p>\n\n\n\n<p>12 0V<\/p>\n\n\n\n<p>13 0V<\/p>\n\n\n\n<p>14 0V<\/p>\n\n\n\n<p>15 0V<\/p>\n\n\n\n<p>16 0V<\/p>\n\n\n\n<p>17 0V<\/p>\n\n\n\n<p>18 0V<\/p>\n\n\n\n<p>19<\/p>\n\n\n\n<p>20<\/p>\n\n\n\n<p>21<\/p>\n\n\n\n<p>During print<\/p>\n\n\n\n<p>1<\/p>\n\n\n\n<p>2 0V<\/p>\n\n\n\n<p>3 Using as GND reference<\/p>\n\n\n\n<p>4 Goes to 3.3v sometimes during print for long (100 to 200ms+ periods)<\/p>\n\n\n\n<p>5 3.3V DC<\/p>\n\n\n\n<p>6 3.3V DC<\/p>\n\n\n\n<p>7 0V DC<\/p>\n\n\n\n<p>8 500ns\/3.3v ~every 20us<\/p>\n\n\n\n<p>9 3.3V DC<\/p>\n\n\n\n<p>10 500ns\/3.3v<\/p>\n\n\n\n<p>11 NC<\/p>\n\n\n\n<p>12 0V (some ripple)<\/p>\n\n\n\n<p>13 ~84ns\/3.3v. Looks like data clk.<\/p>\n\n\n\n<p>14 0V<\/p>\n\n\n\n<p>15 84ns\/3.3v Looks like data.<\/p>\n\n\n\n<p>16 0V<\/p>\n\n\n\n<p>17 84ns\/3.3v Looks like data.<\/p>\n\n\n\n<p>18 0V<\/p>\n\n\n\n<p>19 Looks like 43v (&gt;30v)<\/p>\n\n\n\n<p>20<\/p>\n\n\n\n<p>21 0V<\/p>\n\n\n\n<p>Pin 4 during print:<br><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"739\" height=\"184\" src=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-49.png\" alt=\"\" class=\"wp-image-7000\" srcset=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-49.png 739w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-49-300x75.png 300w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-49-150x37.png 150w\" sizes=\"auto, (max-width: 739px) 100vw, 739px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"339\" height=\"758\" src=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-50.png\" alt=\"\" class=\"wp-image-7001\" srcset=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-50.png 339w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-50-134x300.png 134w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-50-67x150.png 67w\" sizes=\"auto, (max-width: 339px) 100vw, 339px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"336\" height=\"758\" src=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-51.png\" alt=\"\" class=\"wp-image-7002\" srcset=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-51.png 336w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-51-133x300.png 133w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-51-66x150.png 66w\" sizes=\"auto, (max-width: 336px) 100vw, 336px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"486\" height=\"494\" src=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-52.png\" alt=\"\" class=\"wp-image-7003\" srcset=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-52.png 486w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-52-295x300.png 295w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2023\/07\/image-52-148x150.png 148w\" sizes=\"auto, (max-width: 486px) 100vw, 486px\" \/><\/figure>\n\n\n\n<p>1,20 Connected<\/p>\n\n\n\n<p>2,3,7,11,12,14,16,18,21 Connected<\/p>\n\n\n\n<p>5,9 Connected (likely 3.3)<\/p>\n\n\n\n<p>Pin 4 seems up be pulled up to 3.3v on controller. (4.7K pullup)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DC Values (prior to printing) 1 2 3 Using as GND reference 4 2.59V DC 5 3.3V DC 6 3.3V DC 7 0V DC 8 0V DC 9 3.3V DC 10 0V 11 NC 12 0V 13 0V 14 0V 15 0V 16 0V 17 0V 18 0V 19 20 21 During print 1 2 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-6999","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p1RRoU-1OT","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts\/6999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/comments?post=6999"}],"version-history":[{"count":1,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts\/6999\/revisions"}],"predecessor-version":[{"id":7004,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts\/6999\/revisions\/7004"}],"wp:attachment":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/media?parent=6999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/categories?post=6999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/tags?post=6999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}